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| 1 | Olive leaf extract inhibits lead poisoning-induced brain injury显示文摘Olive leaves have an antioxidant capacity,and olive leaf extract can protect the blood,spleen and hippocampus in lead-poisoned mice.However,little is known about the effects of olive leaf extract on lead-induced brain injury.This study was designed to determine whether olive leaf extract can inhibit lead-induced brain injury,and whether this effect is associated with antioxidant capacity.First,we established a mouse model of lead poisoning by continuous intragastric administration of lead acetate for 30 days.Two hours after successful model establishment,lead-poisoned mice were given olive leaf extract at doses of 250,500 or 1000 mg/kg daily by intragastric administration for 50 days.Under the transmission electron microscope,olive leaf extract attenuated neuronal and capillary injury and reduced damage to organelles and the matrix around the capillaries in the frontal lobe of the cerebral cortex in the lead-poisoned mice.Olive leaf extract at a dose of 1000 mg/kg had the greatest protective effect.Spectrophotometry showed that olive leaf extract significantly increased the activities of superoxide dismutase,catalase,alkaline phosphatase and acid phosphatase,while it reduced malondialdehyde content,in a dose-dependent manner.Furthermore,immunohistochemical staining revealed that olive leaf extract dose-dependently decreased Bax protein expression in the cerebral cortex of lead-poisoned mice.Our findings indicate that olive leaf extract can inhibit lead-induced brain injury by increasing antioxidant capacity and reducing apoptosis. | Yu Wang Shengqing Wang Wenhui Cui Jiujun He Zhenfu Wang Xiaolu Yang | 2013 | Neural Regeneration Research2013，8，22： | 21 |
| 2 | Regulating Zn Deposition via an Artificial Solid–Electrolyte Interface with Aligned Dipoles for Long Life Zn Anode显示文摘Aqueous zinc ion batteries show prospects for next-generation renewable energy storage devices.However,the practical applications have been limited by the issues derived from Zn anode.As one of serious problems,Zn dendrite growth caused from the uncontrollable Zn deposition is unfavorable.Herein,with the aim to regulate Zn deposition,an artificial solid–electrolyte interface is subtly engineered with a perovskite type material,BaTiO3,which can be polarized,and its polarization could be switched under the external electric field.Resulting from the aligned dipole in BaTiO3 layer,zinc ions could move in order during cycling process.Regulated Zn migration at the anode/electrolyte interface contributes to the even Zn stripping/plating and confined Zn dendrite growth.As a result,the reversible Zn plating/stripping processes for over 2000 h have been achieved at 1 mA cm^(−2) with capacity of 1 mAh cm−2.Furthermore,this anode endowing the electric dipoles shows enhanced cycling stability for aqueous Zn-MnO2 batteries.The battery can deliver nearly 100%Coulombic efficiency at 2 Ag^(−1) after 300 cycles. | Kai Wu Jin Yi Xiaoyu Liu Yang Sun Jin Cui Yihua Xie Yuyu Liu Yongyao Xia Jiujun Zhang | 2021 | Nano-Micro Letters2021，13，5： | 8 |
| 3 | Dendrite‐free lithium and sodium metal anodes with deep plating/stripping properties for lithium and sodium batteries显示文摘Although lithium(Li)and sodium(Na)metals can be selected as the promising anode materials for next‐generation rechargeable batteries of high energy density,their practical applications are greatly restricted by the uncontrollable dendrite growth.Herein,a platinum(Pt)–copper(Cu)alloycoated Cu foam(Pt–Cu foam)is prepared and then used as the substrate for Li and Na metal anodes.Owing to the ultrarough morphology with a threedimensional porous structure and the quite large surface area as well as lithiophilicity and sodiophilicity,both Li and Na dendrite growths are significantly suppressed on the substrate.Moreover,during Li plating,the lithiated Pt atoms can dissolve into Li phase,leaving a lot of microsized holes on the substrate.During Na plating,although the sodiated Pt atoms cannot dissolve into Na phase,the sodiation of Pt atoms elevates many microsized blocks above the current collector.Either the holes or the voids on the surface of Pt–Cu foam what can be extra place for deposited alkali metal,what effectively relaxes the internal stress caused by the volume exchange during Li and Na plating/stripping.Therefore,the symmetric batteries of Li@Pt–Cu foam and Na@Pt–Cu foam have both achieved long‐term cycling stability even at ultrahigh areal capacity at 20 mAh cm−2. | Jianyi Wang Qi Kang Jingchao Yuan Qianru Fu Chunhua Chen Zibo Zhai Yang Liu Wei Yan Aijun Li Jiujun Zhang | 2021 | Carbon Energy2021，3，1： | 6 |
| 4 | Carbon-based bifunctional electrocatalysts for oxygen reduction and oxygen evolution reactions:Optimization strategies and mechanistic analysis显示文摘Electrocatalysts are one of the essential components for the devices of high-efficiency green energy storage and conversion,such as metal-air cells,fuel cells,and water electrolysis systems.While catalysts made from noble metals possess high catalytic performance in both oxygen reduction reaction(ORR)and oxygen evolution reaction(OER),their scarcity and expensiveness significantly limit large-scale applications.In this regard,metal-free/non-noble metal carbon-based catalysts have become competitive alternatives to replace catalysts made of noble metals.Nevertheless,low catalytic ORR/OER performance is the challenge of carbon-based catalysts for the commercial applications of metal-air batteries.To solve the problem of poor catalytic performance,two strategies have been proposed:(1)controlling the microstructure of the catalysts to expose more active sites as the channels of rapid mass and electron transfer;and(2)reducing the reaction energy barrier by optimizing the electronic structures of the catalysts via surface engineering.Here,we review different types of bifunctional ORR/OER electrocatalysts with the activated surface sites.We focus on how the challenge can be overcome with different methods of material synthesis,structural and surface characterization,performance validation/optimization,to outline the principles of surface modifications behind catalyst designs.In particular,we provide critical analysis in the challenges that we are facing in structural design and surface engineering of bifunctional ORR/OER catalysts and indicate the possible solution for these problems,providing the society with clearer ideas on the practical prospects of noble-metal-free electrocatalysts for their future applications. | Huidong Xu Jack Yang Riyue Ge Jiujun Zhang Ying Li Mingyuan Zhu Liming Dai Sean Li Wenxian Li | 2022 | Journal of Energy Chemistry2022，31，8： | 2 |
| 5 | Utilization of Red Mud as Raw Material in the Production of Field Road Cement显示文摘The total utilization amount of red mud is limited due to its high content of alkali,heavy metals and naturally occurring radioactive element.In order to rationalize the use of red mud,a typical field road cement using dealkalized red mud(content of alkali lower than 1%) as raw material was firstly prepared in this paper.Then,a preliminary research on the radioactivity of the red mud based field road cement has been carried out.For that reason,two samples of raw materials were prepared.One was with ordinary raw materials,as the control group(CG),the other was with 23 w % red mud,as the experimental group(EG).The clinkers were acquired by sintering the above two raw materials at 1 400 ℃.Subsequently,the two types of cement prepared by the above two kinds of clinkers were tested by measuring the normal consistency,setting time,mechanical strength and drying shrinkage.Meanwhile,the hydration products of the two types of cement were examined by XRD analysis at the curing age of 6 hours,1,3,7,and 28 days,respectively.The radioactivity of the two kinds of cement clinkers was then measured by gamma-ray spectrometry.The experimental results indicate that the main mineralogical phases components in the EG field road cement clinkers are C_3S,C_2S,and C_4AF,the 28 days flexural and compressive strength of the EG field road cement mortars could be up to 8.45 and 53.2 MPa,respectively.The radioactive measuring results of the EG field road cement show that the value of radium equivalent activity index(Raeq) is 254.8 Bq/Kg^(-1),which is lower than the upper limit. | 王晓 LUO Zhongtao ZHANG Lei RONG Hui YANG Jiujun | 2016 | Journal of Wuhan University of Technology(Materials Science)2016，31，4： | 1 |
| 6 | Molybdenum disulfide(MoS2)-based electrocatalysts for hydrogen evolution reaction:From mechanism to manipulation显示文摘Molybdenum disulfide(MoS_(2))-based materials as the non-noble metal catalysts have displayed the potential capability to drive electrocatalytic hydrogen evolution reaction(HER)for green hydrogen production along with their intrinsic activity,tunable electronic properties,low cost,and abundance reserves,which have attracted intensive attention as alternatives to the low-abundance and high-cost platinum-based catalysts.However,their insufficient catalytic HER activities and stability are the major challenges for them to become practically applicable.Hereby,the MoS_(2)-based electrocatalysts for HER are comprehensively reviewed to explain the fundamental science behind the manipulations of the crystal structure,microstructure,surface,and interface of MoS_(2) in order to enhance its catalytic performance through changing the electrical conductivity,the number of active sites,surface wettability,and the Gibbs free energy for hydrogen adsorption(ΔGH).Recent studies in surface/interface engineering,such as phase engineering,defect engineering,morphology design,and heterostructure construction,are analyzed to reveal the state-of-the-art strategies for designing and preparing the cost-effective and highperformance MoS_(2)-based catalysts through optimizing the charge transfer,surface-active sites,ΔGH,and surface hydrophilicity.Lastly,the perspectives,challenges,and future research directions of HER electrocatalysis are also given to facilitate the further research and development of HER catalysts. | Yao Xu Riyue Ge Jack Yang Jiancheng Li Sean Li Ying Li Jiujun Zhang Jing Feng Bin Liu Wenxian Li | 2022 | Journal of Energy Chemistry2022，31，11： | 1 |
| 7 | A FEM study on the mechanical responses of pseudoelastic TiNi alloys to a particle normal loads显示文摘 | Limin Wang Jiujun Xu Li Yan Zhengdong Liu Gang Yang | 2006 | Wear2006，，6： | 1 |
| 8 | Coordination Effect-Promoted Durable Ni(OH)_(2) for Energy-Saving Hydrogen Evolution from Water/ Methanol Co-Electrocatalysis显示文摘Electrocatalytic water splitting is a viable technique for generating hydrogen but is precluded from the sluggish kinetics of oxygen evolution reactions(OER).Small molecule oxidation reactions with lower working potentials,such as methanol oxidation reactions,are good alternatives to OER with faster kinetics.However,the typically employed Ni-based electrocatalysts have poor activity and stability.Herein,a novel three-dimensional(3D)-networking Modoped Ni(OH)_(2) with ultralow Ni-Ni coordination is synthesized,which exhibits a high MOR activity of 100 mA cm^(−2) at 1.39 V,delivering 28 mV dec^(−1) for the Tafel slope.Meanwhile,hydrogen evolution with value-added formate co-generation is boosted with a current density of more than 500 mA cm^(−2) at a cell voltage of 2.00 V for 50 h,showing excellent stability in an industrial alkaline concentration(6 M KOH).Mechanistic studies based on density functional the-ory and X-ray absorption spectroscopy showed that the improved performance is mainly attributed to the ultralow Ni-Ni coordination,3D-networking structures and Mo dopants,which improve the catalytic activity,increase the active site density and strengthen the Ni(OH)_(2)3D-networking structures,respectively.This study paves a new way for designing electrocatalysts with enhanced activity and durability for industrial energy-saving hydrogen production. | Guodong Fu Xiaomin Kang Yan Zhang Xiaoqiang Yang Lei Wang Xian-Zhu Fu Jiujun Zhang Jing-Li Luo Jianwen Liu | 2022 | Nano-Micro Letters2022，14，12： | 1 |
| 9 | Sodium Superionic Conductors(NASICONs)as Cathode Materials for Sodium‑Ion Batteries显示文摘Sodium-ion batteries(SIBs)have developed rapidly owing to the high natural abundance,wide distribution,and low cost of sodium.Among the various materials used in SIBs,sodium superion conductor(NASICON)-based electrode materials with remarkable structural stability and high ionic conductivity are one of the most promising candidates for sodium storage electrodes.Nevertheless,the relatively low electronic conductivity of these materials makes them display poor electrochemical performance,significantly limiting their practical application.In recent years,the strategies of enhancing the inherent conductivity of NASICON-based cathode materials have been extensively studied through coating the active material with a conductive carbon layer,reducing the size of the cathode material,combining the cathode material with various carbon materials,and doping elements in the bulk phase.In this paper,we review the recent progress in the development of NASICON-based cathode materials for SIBs in terms of their synthesis,characterization,functional mechanisms,and performance validation/optimization.The advantages and disadvantages of such SIB cathode materials are analyzed,and the relationship between electrode structures and electrochemical performance as well as the strategies for enhancing their electrical conductivity and structural stability is highlighted.Some technical challenges of NASICON-based cathode materials with respect to SIB performance are analyzed,and several future research directions are also proposed for overcoming the challenges toward practical applications. | Qingbo Zhou Linlin Wang Wenyao Li Kangning Zhao Minmin Liu Qian Wu Yujie Yang Guanjie He Ivan P.Parkin Paul R.Shearing Dan J.L.Brett Jiujun Zhang Xueliang Sun | 2021 | Electrochemical Energy Reviews2021，4，4： | 1 |
| 10 | Regulating solid electrolyte interphases on phosphorus/carbon anodes via localized high-concentration electrolytes for potassium-ion batteries显示文摘The resourceful and inexpensive red phosphorus has emerged as a promising anode material of potassium-ion batteries(PIBs) for its large theoretical capacities and low redox potentials in the multielectron alloying/dealloying reactions,yet chronically suffering from the huge volume expansion/shrinkage with a sluggish reaction kinetics and an unsatisfactory interfacial stability against volatile electrolytes.Herein,we systematically developed a series of localized high-concentration electrolytes(LHCE) through diluting high-concentration ether electrolytes with a non-solvating fluorinated ether to regulate the formation/evolution of solid electrolyte interphases(SEI) on phosphorus/carbon(P/C) anodes for PIBs.Benefitting from the improved mechanical strength and structural stability of a robust/uniform SEI thin layer derived from a composition-optimized LHCE featured with a unique solvation structure and a superior K+migration capability,the P/C anode with noticeable pseudocapacitive behaviors could achieve a large reversible capacity of 760 mA h g^(-1)at 100 mA g^(-1),a remarkable capacity retention rate of 92.6% over 200 cycles at 800 mA g^(-1),and an exceptional rate capability of 334 mA h g^(-1)at8000 mA g^(-1).Critically,a suppressed reduction of ether solvents with a preferential decomposition of potassium salts in anion-derived interfacial reactions on P/C anode for LHCE could enable a rational construction of an outer organic-rich and inner inorganic-dominant SEI thin film with remarkable mechanical strength/flexibility to buffer huge volume variations and abundant K+diffusion channels to accelerate reaction kinetics.Additionally,the highly reversible/durable full PIBs coupling P/C anodes with annealed organic cathodes further verified an excellent practical applicability of LHCE.This encouraging work on electrolytes regulating SEI formation/evolution would advance the development of P/C anodes for high-performance PIBs. | Wei Xiao Peiyi Shi Zhengkui Li Chong Xie Jian Qin Huijuan Yang Jingjing Wang Wenbin Li Jiujun Zhang Xifei Li | 2023 | Journal of Energy Chemistry2023，，3： | 1 |
| 11 | Research on Decalcification Degradation Process of Cement Stone显示文摘An accelerated laboratory method(saturated ammonium nitrate solution immersion method) was used to analyze the degradation of cement decalcification process. By studying the changes of intensity, volume, elastic modulus, quality, p H value, the Ca/Si, and mineral phase, it could be found that the first cement decalcification degradation process was the decalcification of calcium hydroxide, and then CSH gel, AFm, etc. The secondary ettringite deposition happened and the decalcification degradation depth was proportional to the square root of time. Moreover, the corresponding strength of cement would be gradually reduced, cement rock volume shrinkage occurred, p H values decreased, the surface elastic modulus decreased down to a certain level, and slightly changed and the Ca/Si was 3.1 from the beginning and lasted down to 1.3. | 余海燕 YANG Jiujun RONG Hui | 2015 | Journal of Wuhan University of Technology(Materials Science)2015，30，2： | 0 |
| 12 | Melting Reconstruction Features and Solidification Mechanism of Heavy Metal-containing Slag显示文摘The relationships between microstructure and melting temperature of slag containing different heavy metals(Zn, Cu, Pb and Cr) were studied. Furthermore, the corresponding solidification mechanism and rule of heavy metals were analyzed by microscopic tests during melting and reconstructing process. Based on preliminary results, three conclusions were derived. Firstly, pure slag would begin to melt when the temperature reached 1 180 ℃; however, Zn did not play any fluxing action. Secondly, upon adding Cu and Pb, the initial melting temperature of slag decreased by 5-8 ℃ and their fluxing effect was observed. Thirdly, the initial melting temperature and the reaction time for slag decreased by 22 ℃ and 6 s respectively after adding Cr; the fluxing action was significant under Cr. The results of X-ray diffraction(XRD) and Fourier transform infrared spectroscope(FTIR) analyses showed that the above heavy metals had little influence on the reconstruction of slag. Toxicity characteristic leaching procedure(TCLP) leaching tests showed a good solidification effect of the heavy metals with melting slag, fixation rate of Zn, Cu, Pb and Cr was 36.3%, 24.6%, 9.2% and 93.2%, respectively. The leaching toxicity of the heavy metals met the requirements for environmental emission after solidification treatment. | 罗忠涛 XIAO Yuling YANG Jiujun LI Xiangguo WANG Xiao | 2014 | Journal of Wuhan University of Technology(Materials Science)2014，29，2： | 0 |
| 13 | Lithiophilicity: The key to efficient lithium metal anodes for lithium batteries显示文摘Lithium metal anode of lithium batteries,including lithium-ion batteries,has been considered the anode for next-generation batteries with desired high energy densities due to its high theoretical specific capacity(3860 mA h g^(-1))and low standards electrode potential(-3.04 V vs.SHE).However,the highly reactive nature of metallic lithium and its direct contact with the electrolyte could lead to severe chemical reactions,leading to the continuous consumption of the electrolyte and a reduction in the cycle life and Coulombic efficiency.In addition,the solid electrolyte interface formed during battery cycling is mainly inorganic,which is too fragile to withstand the extreme volume change during the plating and stripping of lithium.The uneven flux of lithium ions could lead to excessive lithium deposition at local points,resulting in needle-like lithium dendrites,which could pierce the separator and cause short circuits,battery failure,and safety issues.In the last five years,tremendous efforts have been dedicated to addressing these issues,and the most successful improvements have been related to lithiophilicity optimizations.Thus,this paper comprehensively reviewed the lithiophilicity regulation in lithium metal anode modifications and highlighted the vital effect of lithiophilicity.The remaining challenges faced by the lithiophilicity optimization for lithium metal anodes are discussed with the proposed research directions for overcoming the technical challenges in this subject. | Yahao Li Yue Li Lulu Zhang Huachao Tao Qingyu Li Jiujun Zhang Xuelin Yang | 2023 | Journal of Energy Chemistry2023，，2： | 0 |
| 14 | A Review of Solid Electrolyte Interphase(SEI)and Dendrite Formation in Lithium Batteries显示文摘Lithium-metal batteries with high energy/power densities have significant applications in electronics,electric vehicles,and stationary power plants.However,the unstable lithium-metal-anode/electrolyte interface has induced insufficient cycle life and safety issues.To improve the cycle life and safety,understanding the formation of the solid electrolyte interphase(SEI)and growth of lithium dendrites near the anode/electrolyte interface,regulating the electrodeposition/electrostripping processes of Li^(+),and developing multiple approaches for protecting the lithium-metal surface and SEI layer are crucial and necessary.This paper comprehensively reviews the research progress in SEI and lithium dendrite growth in terms of their classical electrochemical lithium plating/stripping processes,interface interaction/nucleation processes,anode geometric evolution,fundamental electrolyte reduction mechanisms,and effects on battery performance.Some important aspects,such as charge transfer,the local current distribution,solvation,desolvation,ion diffusion through the interface,inhibition of dendrites by the SEI,additives,models for dendrite formation,heterogeneous nucleation,asymmetric processes during stripping/plating,the host matrix,and in situ nucleation characterization,are also analyzed based on experimental observations and theoretical calculations.Several technical challenges in improving SEI properties and reducing lithium dendrite growth are analyzed.Furthermore,possible future research directions for overcoming the challenges are also proposed to facilitate further research and development toward practical applications. | Borong Li Yu Chao Mengchao Li Yuanbin Xiao Rui Li Kang Yang Xiancai Cui Gui Xu Lingyun Li Chengkai Yang Yan Yu David P.Wilkinson Jiujun Zhang | 2023 | Electrochemical Energy Reviews2023，6，1： | 0 |
| 15 | Insight into the influence of ether and ester electrolytes on the sodium-ion transportation kinetics for hard carbon显示文摘The electrochemical performance of hard carbon(HC)materials is closely related to the electrolyte used in the sodium ion batteries(SIBs).Conventional electrolytes carbonate(EC)demonstrates low initial Columbic efficiency(ICE)and poor rate performance,which is one of the main bottlenecks that limits the practical application of HCs.Ether electrolyte(diglyme)was reported to improve the rate performance of HCs.Nevertheless,the underlying mechanism for the excellent rate capability is still lack of in-depth study.In this work,the differences of sodium-ion diffusion between ether and carbonate-base electrolytes in HCs are analyzed layer by layer.Firstly,when sodium-ions are diffused in electrolyte,the diffusion coefficient of sodium-ion in ether electrolyte is about 2.5 times higher than that in ester electrolytes by molecular dynamics(MD)simulation and experimental characterization.Furthermore,when the solvated sodium-ions are diffused into the solid electrolyte interphase(SEI)interface and the HCs material,the enhanced charge transfer kinetics(thin SEI layer(4.6 vs.12 nm)and low RSEI(1.5 vs.24Ω))at the SEI combined with low desolvation energy(0.248 eV)are responsible for high-rate performance and good cycling stability of HC in ether electrolyte.Therefore,high diffusion coefficient,low desolvation energy,and good interface are the intrinsic reasons for enhanced rate performance in ether electrolyte,which also has guiding significance for the design of other high-rate electrolytes. | Xiuping Yin Zhaomin Wang Yang Liu Zhixiu Lu Hongli Long Tao Liu Jiujun Zhang Yufeng Zhao | 2023 | Nano Research2023，16，8： | 0 |
| 16 | β-SiAlON Hollow Spheres Prepared from Coal Fly Ash Microspheres显示文摘β-SiAlON hollow spheres were prepared by carbothermal reduction method,using coal fly ash (<15 μm,43-77 μm,and >100 μm) and active carbon in some proportion (20% less than theoretical addition,theoretical addition and 10% excess theoretical addition) as starting materials,putting into alumina crucible in high temperature nitriding furnace after well mixed,and holding at 1 300 ℃,1 350 ℃,1 400 ℃,1 450 ℃,and 1 500 ℃ for 6 h.Effects of temperature,particle size of the microsphere,and addition of active carbon on the phase composition and microstructure of the nitridized products were studied by means of XRD and SEM.The results show that the nitridation reaction starts at 1 300 ℃;excess active carbon is necessary to form β-SiAlON hollow spheres,and particle size is the important parameter to form the hollow spheres nitridized products β-SiAlON;at 1 500 ℃,when the active carbon is 10% in excess,the β-SiAlON hollow spheres,which were prepared using coal fly ash with particle size>100 μm,are featured with rough surface,high hollowness and low density. | ZHANG Lei WANG Xueping YANG Jiujun WANG Wenjuan YANG Fuzeng | 2009 | China's Refractories2009，18，4： | 0 |
| 17 | Advanced Strategies for Stabilizing Single‑Atom Catalysts for Energy Storage and Conversion显示文摘Well-defined atomically dispersed metal catalysts(or single-atom catalysts)have been widely studied to fundamentally under-stand their catalytic mechanisms,improve the catalytic efficiency,increase the abundance of active components,enhance the catalyst utilization,and develop cost-effective catalysts to effectively reduce the usage of noble metals.Such single-atom cata-lysts have relatively higher selectivity and catalytic activity with maximum atom utilization due to their unique characteristics of high metal dispersion and a low-coordination environment.However,freestanding single atoms are thermodynamically unstable,such that during synthesis and catalytic reactions,they inevitably tend to agglomerate to reduce the system energy associated with their large surface areas.Therefore,developing innovative strategies to stabilize single-atom catalysts,including mass-separated soft landing,one-pot pyrolysis,co-precipitation,impregnation,atomic layer deposition,and organometallic complexation,is critically needed.Many types of supporting materials,including polymers,have been commonly used to stabilize single atoms in these fabrication techniques.Herein,we review the stabilization strategies of single-atom catalyst,including different synthesis methods,specific metals and carriers,specific catalytic reactions,and their advantages and disadvantages.In particular,this review focuses on the application of polymers in the synthesis and stabilization of single-atom catalysts,including their functions as carriers for metal single atoms,synthetic templates,encapsulation agents,and protection agents during the fabrication process.The technical challenges that are currently faced by single-atom catalysts are summarized,and perspectives related to future research directions including catalytic mechanisms,enhancement of the catalyst loading content,and large-scale implementation are proposed to realize their practical applications. | Wenxian Li Zehao Guo Jack Yang Ying Li Xueliang Sun Haiyong He Sean Li Jiujun Zhang | 2022 | Electrochemical Energy Reviews2022，5，3： | 0 |
| 18 | Low carbon alcohol fuel electrolysis of hydrogen generation catalyzed by a novel and effective Pt–CoTe/C bifunctional catalyst system显示文摘Low carbon alcohol fuels electrolysis under ambient conditions is promising for green hydrogen generation instead of the traditional alcohol fuels steam reforming technique,and highly efficient bifunctional catalysts for membrane electrode fabrication are required to drive the electrolysis reactions.Herein,the efficient catalytic promotion effect of a novel catalyst promoter,CoTe,on Pt is demonstrated for low carbon alcohol fuels of methanol and ethanol electrolysis for hydrogen generation.Experimental and density functional theory calculation results indicate that the optimized electronic structure of Pt–CoTe/C resulting from the synergetic effect between Pt and CoTe further regulates the adsorption energies of CO and H*that enhances the catalytic ability for methanol and ethanol electrolysis.Moreover,the good water activation ability of CoTe and the strong electronic effect of Pt and CoTe increased the tolerance ability to the poisoning species as demonstrated by the CO-stripping technique.The high catalytic kinetics and stability,as well as the promotion effect,were also carefully discussed.Specifically,71.9%and 75.5%of the initial peak current density was maintained after 1000 CV cycles in acid electrolyte for methanol and ethanol oxidation;and a low overpotential of 30 and 35 mV was required to drive the hydrogen evolution reaction in methanol and ethanol solution at the current density of 10 mA cm^(-2).In the two-electrode system for alcohol fuels electrolysis,using the optimal Pt–CoTe/C catalyst as bi-functional catalysts,the cell potential of 0.66 V(0.67 V)was required to achieve 10 mA cm^(-2) for methanol(ethanol)electrolysis,much smaller than that of water electrolysis(1.76 V).The current study offers a novel platform for hydrogen generation via low carbon alcohol fuel electrolysis,and the result is helpful to the catalysis mechanism understanding of Pt assisted by the novel promoter. | Yang Zhou Lice Yu Jinfa Chang Ligang Feng Jiujun Zhang | 2024 | Green Energy & Environment2024，9，4： | 0 |
| 19 | A comprehensive review of electrochemical hybrid power supply systems and intelligent energy managements for unmanned aerial vehicles in public services显示文摘The electric unmanned aerial vehicles (UAVs) are rapidly growing due to their abilities to perform some difficult or dangerous tasks as well as many public services including real-time monitoring, wireless coverage, search and rescue, wildlife surveys, and precision agriculture. However, the electrochemical power supply system of UAV is a critical issue in terms of its energy/power densities and lifetime for service endurance. In this paper, the current power supply systems used in UAVs are comprehensively reviewed and analyzed on the existing power configurations and the energy management systems. It is identified that a single type of electrochemical power source is not enough to support a UAV to achieve a long-haul flight;hence, a hybrid power system architecture is necessary. To make use of the advantages of each type of power source to increase the endurance and achieve good performance of the UAVs, the hybrid systems containing two or three types of power sources (fuel cell,battery, solar cell, and supercapacitor,) have to be developed. In this regard, the selection of an appropriate hybrid power structure with the optimized energy management system is critical for the efficient operation of a UAV. It is found that the data-driven models with artificial intelligence (AI) are promising in intelligent energy management. This paper can provide insights and guidelines for future research and development into the design and fabrication of the advanced UAV power systems. | Caizhi Zhang Yuqi Qiu Jiawei Chen Yuehua Li Zhitao Liu Yang Liu Jiujun Zhang Chan Siew Hwa | 2022 | Energy and AI2022，9，3： | 0 |
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