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| 1 | MOF-Transformed In_(2)O_(3-x)@C Nanocorn Electrocatalyst for Efficient CO_(2)Reduction to HCOOH显示文摘For electrochemical CO_(2) reduction to HCOOH,an ongoing challenge is to design energy efficient electrocatalysts that can deliver a high HCOOH current density(JHCOOH)at a low overpotential.Indium oxide is good HCOOH production catalyst but with low con-ductivity.In this work,we report a unique corn design of In_(2)O_(3-x)@C nanocatalyst,wherein In_(2)O_(3-x)nanocube as the fine grains dispersed uniformly on the carbon nanorod cob,resulting in the enhanced conductivity.Excellent performance is achieved with 84%Faradaic efficiency(FE)and 11 mA cm^(−2)JHCOOH at a low potential of−0.4 V versus RHE.At the current density of 100 mA cm^(−2),the applied potential remained stable for more than 120 h with the FE above 90%.Density functional theory calculations reveal that the abundant oxygen vacancy in In_(2)O_(3-x) has exposed more In^(3+) sites with activated electroactivity,which facilitates the formation of HCOO*intermediate.Operando X-ray absorp-tion spectroscopy also confirms In^(3+) as the active site and the key intermediate of HCOO*during the process of CO_(2) reduction to HCOOH. | Chen Qiu Kun Qian Jun Yu Mingzi Sun Shoufu Cao Jinqiang Gao Rongxing Yu Lingzhe Fang Youwei Yao Xiaoqing Lu Tao Li Bolong Huang Shihe Yang | 2022 | Nano-Micro Letters2022,14,10: | 2 |
| 2 | Strain modulation of phase transformation of noble metal nanomaterials显示文摘Noble metals have been extensively studied owing to their high chemical stability and outstanding catalytic properties in various important reactions.However,their large-scale application of noble metals is still challenged by their high expense and scarcity on the earth,as well as the yet insufficient activity to give a satisfying performance.For decades,enormous research efforts have been devoted to the nanoengineering of noble metal nanocrystals,such as the size-,composition-,shape-,and/or morphology-controlled syntheses,and impressive advances have been achieved.Meanwhile,the discovery that the crystal structure of noble metal nanocrystals also has a significant impact on their properties opened a new pathway that modulates the crystal phases of noble metals to achieve better properties.Among the feasible methods for crystal phase transformation,the presence of strain is not negligible.Strain generally has two roles:the driving force of the phase transformation and/or the origin of the distinct properties of the new crystal structure.Strain effect on noble metals has also been extensively studied due to its capability of fine-tuning the surface catalytic activity.Therefore,combining the two hot research trends together,a possible research pathway is emerging.That is,utilizing the potential synergistic effect between novel crystal phases and the subsequent lattice strain to boost the performance of noble metal nanocrystal even further.Herein,a brief summary of the currently discovered noble metal phases and strain effect and the introduction of strain related phase modulation techniques along with the catalytic applications will be presented.Finally,a brief conclusion and future perspective is given. | Tong Wu Mingzi Sun Bolong Huang | 2020 | InfoMat2020,2,4: | 1 |
| 3 | Segmented Au/PtCo heterojunction nanowires for efficient formic acid oxidation catalysis显示文摘Exploring a new strategy for the removal of adsorbed CO (CO^(*)) on a Pt surface at a low potential is the key to achieving enhanced catalysis for the formic acid oxidation reaction (FAOR);however, the development of such a strategy remains a significant challenge. Herein, we report a class of Au/PtCo heterojunction nanowires (HNWs) as efficient electrocatalysts for accelerating the FAOR. This heterojunction structure and the induced Co alloying effects can facilitate formic acid adsorption/activation on Pt with high CO tolerance, generating the FAOR pathway from dehydration to dehydrogenation. The optimized Au_(23)/Pt_(63)Co_(14) HNWs showed the highest specific and mass activities of 11.7 mA cm^(−2)Pt and 6.42 A mg^(−1)Pt reported to date, respectively, which are considerably higher than those of commercial Pt/C. DFT calculations confirmed that the electron-rich Au segment enhances the electronic activity of the PtCo NWs, which not only allows the construction of a highly efficient electron transfer channel for the FAOR but also suppresses CO formation. | Yingjun Sun Bolong Huang Yingjie Li Yingnan Qin Ziqi Fu Mingzi Sun Lei Wang Shaojun Guo | 2021 | Fundamental Research2021,1,4: | 1 |
| 4 | Interface synergistic effects induced multi-mode luminescence显示文摘Mechanoluminescence(ML)has become the most promising material for broad applications in display and sensing devices,in which ZnS is the most commonly studied one due to its stable and highly repetitive ML performances.In this work,we have successfully prepared the biphase ZnS on a large scale through the facile in-air molten salt protection strategy.The obtained biphase has the best ML properties,which is mainly attributed to the synergistic effects of piezo-photonic,defect,and interface dislocations.DFT calculations have confirmed that the defects activate the local S and Zn sites and reduce the energy barrier for electron transfer.The much stronger X-ray induced luminescence than the commercial scintillator is also reached.The application of ZnS particles in both papers and inks delivers superior performance.Meanwhile,ZnS particles based screen printing ink is able to directly print on paper,plastic and other carriers to form clear marks.These proposed paper and ink hold great potentials in applications of information security and anti-counterfeiting based on the multi-mode luminescence properties.This work provides a new avenue to understand and realize the high-performance multi-mode luminescence,inspiring more future works to extend on other ML materials and boosting their practical applications. | Ronghua Ma Chunfeng Wang Wei Yan Mingzi Sun Jianxiong Zhao Yuantian Zheng Xu Li Longbiao Huang Bing Chen Feng Wang Bolong Huang Dengfeng Peng | 2022 | Nano Research2022,15,5: | 1 |
| 5 | Ultrastable bimetallic Fe_(2)Mo for efficient oxygen reduction reaction in pH-universal applications显示文摘Iron-based nanostructures represent an emerging class of catalysts with high electroactivity for oxygen reduction reaction(ORR)in energy storage and conversion technologies.However,current practical applications have been limited by insufficient durability in both alkaline and acidic environments.In particular,limited attention has been paid to stabilizing iron-based catalysts by introducing additional metal by the alloying effect.Herein,we report bimetallic Fe_(2)Mo nanoparticles on N-doped carbon(Fe_(2)Mo/NC)as an efficient and ultra-stable ORR electrocatalyst for the first time.The Fe_(2)Mo/NC catalyst shows high selectivity for a four-electron pathway of ORR and remarkable electrocatalytic activity with high kinetics current density and half-wave potential as well as low Tafel slope in both acidic and alkaline medias.It demonstrates excellent long-term durability with no activity loss even after 10,000 potential cycles.Density functional theory(DFT)calculations have confirmed the modulated electronic structure of formed Fe_(2)Mo,which supports the electron-rich structure for the ORR process.Meanwhile,the mutual protection between Fe and Mo sites guarantees efficient electron transfer and long-term stability,especially under the alkaline environment.This work has supplied an effective strategy to solve the dilemma between high electroactivity and long-term durability for the Fe-based electrocatalysts,which opens a new direction of developing novel electrocatalyst systems for future research. | Jue Hu Chengxu Zhang Mingzi Sun Qianglong Qi Shanxiong Luo Hongchuan Song Jingyi Xiao Bolong Huang Michael K.H.Leung Yingjie Zhang | 2022 | Nano Research2022,15,6: | 1 |
| 6 | Chiral self-assembly of terminal alkyne and selenium clusters organic–inorganic hybrid显示文摘The on-surface self-assembly of inorganic atomic clusters and organic molecules offers significant opportunities to design novel hybrid materials with tailored functionalities.By adopting the advantages from both inorganic and organic components,the hybrid self-assembly molecules have shown great potential in future optoelectrical devices.Herein,we report the co-deposition of 4,8-diethynylbenzo[1,2-d-4,5-d0]bisoxazole(DEBBA)and Se atoms to produce a motif-adjustable organic–inorganic hybrid self-assembly system via the non-covalent interactions.By controlling the coverage of Se atoms,various chiral molecular networks containing Se,Se_(6),Se_(8),and terminal alkynes evolved on the Ag(111)surface.In particular,with the highest coverage of Se atoms,phase segregation into alternating one-dimensional chains of non-covalently bonded Se_(8) clusters and organic ligands has been noticed.The atom-coverage dependent evolution of self-assembly structures reflects the remarkable structural adaptability of Se clusters as building blocks based on the spontaneous resize to reach the maximum non-covalent interactions.This work has significantly extended the possibilities of flexible control in self-assembly nanostructures to enable more potential functions for broad applications. | Zhi Chen Tao Lin Haohan Li Mingzi Sun Chenliang Su Bolong Huang Kian Ping Loh | 2022 | Nano Research2022,15,3: | 0 |
| 7 | Synergistic Effect of Graphdiyne-based Electrocatalysts显示文摘The synergistic effect can help improve the electrocatalyst performances by combining the advantages of individual components.In particular,such an effect has been more important in the atomic catalysts.In this review,we have summarized the synergistic effect of N,X co-doping graphdiyne[X=B,S,F or transition metal(TM)]electrocatalysts and graphdiyne-based dual-atom catalyst(GDY-DAC).In general,the synergistic cooperation between two different dopants in co-doped GDY and adjacent active sites in GDY-DAC not only promotes their catalytic activity but also greatly enhances the thermodynamic stability of the catalysts.For the N,X co-doping GDY electrocatalysts,doping the heteroatoms like boron,sulphur,phosphorus,and fluorine with nitrogen can further tune the charge density distribution and electronic structure.Meanwhile,the electron exchange between two doping atoms and GDY substrate has been discussed,where the TM-based GDY-DAC is a very promising catalyst for electrocatalysis.More importantly,electronic interactions between different elements on GDY have been carefully discussed.In the end,we have also supplied perspectives to the future developments of the GDY-based electrocatalysts. | WONG Hon Ho SUN Mingzi HUANG Bolong | 2021 | Chemical Research in Chinese Universities2021,37,6: | 0 |
| 8 | Intrinsic spin shielding effect in platinum-rare-earth alloy boosts oxygen reduction activity显示文摘Oxygen reduction reactions(ORRs)involve a multistep proton-coupled electron process accompanied by the conversion of the apodictic spin configuration.Understanding the role of spin configurations of metals in the adsorption and desorption of oxygen intermediates during ORRs is critical for the design of efficient ORR catalysts.Herein,a platinum-rare-earth-metal-based alloy catalyst,Pt_(2)Gd,is introduced to reveal the role of spin configurations in the catalytic activity of materials.The catalyst exhibits a unique intrinsic spin reconfiguration because of interactions between the Gd-4f and Pt-5d orbitals.The adsorption and desorption of the oxygen species are optimized by modifying the spin symmetry and electronic structures of the material for increased ORR efficiency.The Pt_(2)Gd alloy exhibits a half-wave potential of 0.95 V and a superior mass activity of 1.5 A·mg Pt^(−1)in a 0.1 M HClO_(4)electrolyte,as well as higher durability than conventional Pt/C catalysts.Theoretical calculations have proven that the spin shielding effect of Gd pairs increases the spin symmetry of Pt-5d orbitals and adsorption preferences toward spin-polarized intermediates to facilitate ORR.This work clarifies the impact of modulating the intrinsic spin state of Pt through the interaction with the local high spin 4f orbital electrons in rare-earth metals,with the aim of boosting the spin-related oxygen reduction reaction,thus fundamentally contributing to the understanding of new descriptors that control ORR activity. | Siyuan Zhu Mingzi Sun Bingbao Mei Liting Yang Yuyi Chu Zhaoping Shi Jingsen Bai Xian Wang Zheng Jiang Changpeng Liu Bolong Huang Junjie Ge Wei Xing | 2023 | National Science Review2023,10,9: | 0 |
| 9 | Atomscopic of ripple origins for two-dimensional monolayer transition metal dichalcogenides显示文摘During the development of ultrathin two-dimensional(2D)materials,the appearance of ripples has been widely observed.However,the formation mechanisms and their influences are still rarely investigated,especially their contributions to the electronic structures and optical properties.To compensate for the knowledge gap,we have carried out comprehensive theoretical studies on the monolayer WSe_(2) with a series of ripple structures from 0 to 12Åin different lattice sizes.The sensitivity of the formation energy,band structures,electronic structures,and optical properties to the ripple structures have been performed systematically for the first time.The formation of ripples in Armchair and zigzag simultaneously are more energetically favorable,leading to more flexible optimizations of the optoelectronic properties.The improved charge-locking effect and extension of absorption ranges indicate the significant role of ripple structures.The spontaneous formation of ripples is associated with orbital rearrangements and structural distortions.This leads to the unique charge carrier correlate inversion between W-5d and Se-4p orbitals,resulting in the pinning of the Fermi level.This work has supplied significant references to understand ultrathin 2D structures and benefit their future developments and applications in high-performance optoelectronic devices. | Haitao Yu Mingzi Sun Xiao Wu Cheuk Hei Chan Bolong Huang Zhong Lin Wang | 2024 | Nano Research2024,17,3: | 0 |
| 10 | Engineering the synergistic effect of carbon dots-stabilized atomic and subnanometric ruthenium as highly efficient electrocatalysts for robust hydrogen evolution显示文摘Currently,the most efficient electrocatalyst for the hydrogen evolution reaction(HER)in water dissociation is Pt-based catalyst.Unfortunately,the high cost and less than perfect efficiency hinder wide-range industrial/technological applications.Here,by controlling the treatment temperature of tris(2,2-bipyridine)ruthenium dichloride hexahydrate,synthesis of compounds with novel ruthenium single/dual atoms(Ru S/DAs)mixed with Ru nanoclusters(Ru S/DAs+Ru NCs)and supported by carbon dots is demonstrated.These compounds are shown to be highly efficient and competitive catalysts for hydrogen evolution.Ru S/DAs+Ru NCs exhibit very high activity,with overpotentials of 15 and 40mV at a current density of 10mA/cm2 in 1.0mol/L KOH and 0.5mol/L H2SO4,respectively.Furthermore,the composites are found to possess outstanding stability and rapid HER kinetics.X ray absorption fine structure analysis,supported by density functional theory calculations,shows charge rearrangement in single-atomic Ru,and the Ru dual sites promote active hydrogen adsorption and recombination.Ru S/DAs and Ru NCs demonstrate high electroactivity due to the electroactive Ru 4d orbitals.The introduction of Ru NCs activates the carbon support,providing a high electronic conductivity to transfer electrons from Ru NCs to Ru S/DAs,and facilitates water dissociation for the HER process. | Yuan Liu Ning Chen Weidong Li Mingzi Sun Tong Wu Bolong Huang Xue Yong Qinghua Zhang Lin Gu Haoqiang Song Robert Bauer John S.Tse Shuang-Quan Zang Bai Yang Siyu Lu | 2022 | SmartMat2022,3,2: | 0 |
| 11 | Skin rash caused by EGFR-TKI could be treated successfully by Pien Tze Huang Unguentum Compositum: a case report显示文摘Epidermal growth factor receptor tyrosine kinase inhibitor(EGFR-TKI)plays an important role in cancer therapy.However,EGFR is highly expressed in the skin and gives rise to one of the most concerning issues for the EGFR-TKI treatment,namely skin toxicity.Antibiotics and corticosteroids are usually used to treat the EGFR inhibitor-associated skin rash,with prominent side effects over long-time use.Pien Tze Huang(PZH)Unguentum Compositum is a traditional product for external application which is made of traditional Chinese medicine and oil base.Herein,we reported the case of a 50-year-old man who presented with skin rash on the face,head,and back induced by an EGFR-TKI named erlotinib.By using PZH Unguentum Compositum,we observed that the skin rash was mitigated and eventually disappeared.This case report suggests that PZH Unguentum Compositum may be an effective therapy in treating skin rash caused by EGFR-TKI with fewer side effects. | Mingzi Zhang Qi Li Yehong Sun | 2022 | The Journal of Biomedical Research2022,36,6: | 0 |
| 12 | Multimodal channel cancer chemotherapy by 2D functional gadolinium metal-organic framework显示文摘2D nanomaterials generally exhibit enhanced physiochemical and biological functions in biomedical applications due to their high surface-to-volume ratio and surface charge.Conventional cancer chemotherapy based on nanomaterials has been hindered by their low drug loading and poor penetration in tumor tissue.To overcome these difficulties,novel materials systems are urgently needed.Hereby,the lanthanide-based porphyrin metal-organic framework(MOF)nanosheets(NSs)with promising cancer imaging/chemotherapy capacities are fabricated,which display superior performance in the drug loading and tumor tissue penetration.The biodegradable PPF-Gd NSs deliver an ultrahigh drug loading(>1500%)and demonstrate the stable and highly sensitive stimuli-responsive degradation/release for multimodal tumor imaging and cancer chemotherapy.Meanwhile,PPF-Gd NSs also exhibit excellent fluorescence and magnetic resonance imaging capability in vitro and in vivo.Compared to the traditional doxorubicin(DOX)chemotherapy,the in vivo results confirm the evident suppression of the tumor growth by the PPF-Gd/DOX drug delivery system with negligible side effects.This work further supports the potential of lanthanide-based MOF nanomaterials as biodegradable systems to promote the cancer theranostics technology development in the future. | Jiale Xia Yumeng Xue Bo Lei Lingling Xu Mingzi Sun Na Li Hongyang Zhao Min Wang Meng Luo Chao Zhang Bolong Huang Yaping Du Chun-Hua Yan | 2021 | National Science Review2021,8,7: | 0 |
| 13 | Carboxylated carbon nanotubes with high electrocatalytic activity for oxygen evolution in acidic conditions显示文摘Since most electrocatalysts for oxygen evolution reaction(OER),except for precious metal oxides RuO_(2) and IrO_(2),are unstable in harsh acidic solutions,it is highly desirable to develop high-performance OER electrocatalysts for acidic media,though it is still a big challenge.Herein,we report a simple strategy to produce carboxyl-enriched multiwalled carbon nanotubes(COOH-MWNTs)that exhibit stable and high electrocatalytic activities for OER in acidic solutions,showing an overpotential at a current density of 10 mA cm^(–2) and a Tafel slope as low as of 265 mV and 82 mV dec^(–1),respectively.As far as we are aware,these results represent the best OER performance for metal-free electrocatalysts,even comparable to those of RuO_(2) and IrO_(2).We have further revealed the catalytic mechanism,which involves one electron lose from the COOH-MWNTs catalyst at the beginning of the OER process to trigger H_(2)O molecule oxidation by forming peralcohol,followed by the recapture of one electron from water molecule to oxidize water and to recover the initial state for the COOH-MWNTs catalyst.The unravel of this new OER mechanism is important as it provides new insights into the crucial role of organic functional groups in electrocatalytic processes.Also,the mechanistic understanding can be used to guide the design and development of novel metalfree catalysts for acidic OER electrocatalysis and beyond. | Xin Zhang Wenqing Zhang Jianying Dai Mingzi Sun Jun Zhao Lifei Ji Lin Chen Fanlong Zeng Fengchun Yang Bolong Huang Liming Dai | 2022 | InfoMat2022,4,1: | 0 |
| 14 | Atomically dispersed indium and cerium sites for selectively electroreduction of CO_(2)to formate显示文摘Currently,single-atom combo catalysts(SACCs)for carbon dioxide reduction reaction(CO_(2)RR)to the formation of HCOOH are still very limited,especially the lanthanide-based SACCs.In this work,the novel SACCs with atomically dispersed In and Ce active sites were successfully prepared on the nitrogen-doped carbon matrix(InCe/CN).Both aberration-corrected high-angle annular dark-field scanning transmission electron microscopy(AC-HAADF-STEM)images and the extended X-ray absorption fine structure(EXAFS)spectra proved the well-isolated In and Ce atoms.The as-prepared InCe/CN shows a high Faradaic efficiency(FE)(77%)and current density of HCOOH formation(j_(HCOOH))at-1.35 V vs.reversible hydrogen electrode(RHE),much higher than the single atom catalysts.Theoretical calculations have indicated that the introduced Ce single atom sites not only significantly promote electron transfer but also optimize the In-5p orbitals towards higher selectivity towards the HCOOH formation.This work innovatively extends the design of SACCs towards the main group and Ln metals for more applications. | Zhong Liang Lianpeng Song Mingzi Sun Bolong Huang Yaping Du | 2023 | Nano Research2023,16,7: | 0 |
| 15 | Stable all-solid-state Li-Te battery with Li_(3)TbBr_(6) superionic conductor显示文摘Rare-earth(RE)halide solid electrolytes(HSEs)have been an emerging research area due to their good electrochemical and mechanical properties for all-solid-state lithium batteries(ASSBs).However,only very limited types of HSEs have been reported with high performance.In this work,tens of grams of RE-HSE Li_(3)TbBr_(6)(LTbB)was synthesized by a vacuum evaporationassisted method.The as-prepared LTbB displays a high ionic conductivity of 1.7 mS·cm^(-1),a wide electrochemical window,and good formability.Accordingly,the assembled solid lithium-tellurium(Li-Te)battery based on the LTbB HSE exhibits excellent cycling stability up to 600 cycles,which is superior to most previous reports.The processes and the chemicals during the discharge/charge of Li-Te batteries have been studied by various in situ and ex situ characterizations.Theoretical calculations have demonstrated the dominant conductivity contributions of the direct[octahedral]-[octahedral]([Oct]-[Oct])pathway for Li ion migrations in the electrolyte.The Tb sites guarantee efficient electron transfer while the Li 2s orbitals are not affected during migration,leading to a low activation barrier.Therefore,this successful fabrication and application of LTbB have offered a highly competitive solution for solid electrolytes in ASSBs,indicating the great potential of RE-based HSEs in energy devices. | Zhichao Zeng Xiaomeng Shi Mingzi Sun Hongtu Zhang Wei Luo Yunhui Huang Bolong Huang Yaping Du Chun-Hua Yan | 2023 | Nano Research2023,16,7: | 0 |