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| 1 | Effects of organic solvent treatment on the chemical structure and pyrolysis reactivity of brown coal显示文摘 | Jingchong Yan Zonqing Bai Jin Bai Zhenxing Guo Wen Li | 2014 | Fuel2014,,: | 2 |
| 2 | Bioinspired membranes for multi-phase liquid and molecule separation显示文摘Water pollution is a serious problem around the world. It causes the lack of clean drinking water and brings risks to human health.Membrane technology has become a competitive candidate to treat the contaminated wastewater due to its high separation efficiency and low energy consumption. In this review, we introduce the recent development of several kinds of bioinspired separation membranes, involving the membrane design and applications. We emphasize the multi-phase liquid separation membranes inspired from nature with special wettability applied for oil/water separation, organic liquids mixture separation, and emulsion separation. After separating multi-phase liquids using these membranes, small molecule pollutants still exist in singlephase liquid. Therefore, we also expand the scope to small molecule-scale separation membranes, such as the nacre-like graphene oxide separation membrane and other nanofiltration membranes. Summary and outlook concerning the future development of separation membranes are also introduced briefly. | Jingchong Liu Zhimin Cui Lanlan Hou Dianming Li Yuan Gao Li Shuai Jing Liu Jian Jin Nü Wang Yong Zhao | 2019 | Science China Chemistry2019,62,1: | 2 |
| 3 | Investigation of kinetic and thermodynamic parameters of coal pyrolysis with model-free fitting methods显示文摘Kinetic analyses are important means for understanding the complicated coal pyrolysis process.This work conducted non-isothermal pyrolysis of four low-medium rank coals with thermogravimetric analyzer at different heating rates(5,10 and 20 K/min).Four model-free fitting approaches including KAS,OFW,Starink and Friedman methods were used to analyze pyrolysis kinetics of the coals.Thermodynamic parameters including enthalpy(ΔH)Gibbs free energy(ΔG)and entropy(ΔS)were calculated with the activation values(E)obtained with KAS method.For the kinetic analysis,the KAS,OFW and Starink methods give close E values over the whole conversion range,but the Friedman method shows more deviant results.The thermodynamic favorability of coal pyrolysis is discussed,bothΔH andΔG increase with conversion consistently with the variation of E,revealing that pyrolysis is endothermic and thermodynamic favorability is reduced with conversion rises.The minusΔS implies that coal structures evolve from disordered to organized ones as universally accepted.These results are expected to deepen our understanding and to optimize the conditions of coal pyrolysis. | Jingchong Yan Qitong Yang Li Zhang Zhiping Lei Zhanku Li Zhicai Wang Shibiao Ren Shigang Kang Hengfu Shui | 2020 | Carbon Resources Conversion2020,3,1: | 1 |
| 4 | Electrospinning Janus Nanofibrous Membrane for Unidirectional Liquid Penetration and Its Applications显示文摘Janus membrane with opposite wettability on its two sides has witnessed an explosion of interest in the field of liquid spontaneous and directional transport for their promising prospect.The advances in fabrication technology and natural bionics have brought remarkable progress for the development of Janus materials.Among the exciting progress,the micro/nanofabrication technique of electrospinning shows advantages in constructing thin porous fibrous membrane materials with controllable surface wettability and hierarchical structures.Here,a brief review of bioinspired Janus membrane for unidirectional liquid penetration fabricated by electrospinning is presented,and the underlying scientific mechanism is discussed with an emphasis on the materials design involving asymmetric surface wettability and micro-topology structure.An overview of recent emerging applications is also reviewed,with special attentions to liquid separation,water collection,distillation,and smart textile,etc.As researchers keep to develop more efficient strategies on designing new Janus membrane with higher performances,it has become increasingly important to understand the mechanism of liquid moving dynamics at the asymmetric interface in order to better recognize the scientific limitations currently hindering the field development.At last,the challenges currently faced and possible strategies on developing new Janus membranes for optimization and engineering in the future are proposed. | HOU Lanlan LIU Jingchong LI Dianming GAO Yuan WANG Yaqiong HU Rongjun REN Wen XIE Shuixiang CUI Zhimin WANG Nü | 2021 | Chemical Research in Chinese Universities2021,37,3: | 1 |
| 5 | Direct Liquefaction of a Chinese Brown Coal and CO2 Gasification of the Resi- dues显示文摘 | YAN Jingchong BAI Zongqing LI Wen | 2014 | Fuel2014,136,: | 1 |
| 6 | Effects of organic solventtreatment on the chemical structure and pyrolysis reactivity of brown coal 显示文摘 | Jingchong Yan Zonqing Bai Jin Bai | 2014 | Fuel2014,128,: | 1 |
| 7 | Surface roughness prediction of high speed milling based on back propagation ar- tificial neural net-work显示文摘 | HU Jinping LI Yan ZHANG Jingchong | 2010 | Advanced Materials Research2010,201,: | 1 |
| 8 | Inappropriateness of the Standard Method in Sulfur Form Analysis of Char from Coal Pyrolysis显示文摘 | Yan Jingchong Bai Zongqing Zhao Hulling | 2012 | Energy and Fuels2012,26,9: | 1 |
| 9 | Okra‑Like Multichannel TiO@NC Fibers Membrane with Spatial and Chemical Restriction on Shuttle‑Effect for Lithium–Sulfur Batteries显示文摘It is especially important to coordinately design the structure and composition of the host in lithium–sulfur batteries(LSBs)for improving its physicochemical adsorption and conversion of lithium polysulfide,which can alleviate the harmful shuttle effect.Herein,a self-supporting multichannel nitrogen-doped carbon fibers membrane embedded with TiO nanoparticles(TiO@NC)was constructed as the electrode for LSBs.The inner channels and the embedded TiO nanoparticles offer spatial confinement and chemical binding for polysulfides,respectively.Moreover,the TiO nanoparticles have abundant oxygen vacancies that promote the conversion of polysulfides.In addition,the nitrogen-doped carbon skeleton can not only serve as highly conductive transportation paths for electrons,but also integrate with the inner channels to sustain the morphology and bear volume expansion during cycling processes.Therefore,the fabricated self-supporting quadruple-channel TiO@NC ultrathin fibers electrode exhibits a high initial specific capacity of 1342.8 mAh g^(-1)at 0.5 C and high-rate capability of 505.8 mAh g^(-1)at 4.0 C.In addition,it maintains 696.0 mAh g^(-1)over 500 cycles with only 0.059%capacity decay per cycle at the high current density of 2.0 C.The multichannel configuration combined with TiO nanoparticles provides a synergetic design strategy for fabricating high-performance electrodes in LSBs. | Shuai Li Jingchong Liu Linlin Ma Li‑Juan Yu Lanlan Hou Dianming Li Songwei Gao Guichu Yue Zhimin Cui NüWang Xiaoxian Zhao Yong Zhao | 2023 | Advanced Fiber Materials2023,5,1: | 1 |
| 10 | Effects of organic solvent treatment on the chemical structure and pyrolysis reactivity of brown coal显示文摘 | Yan Jingchong Bai Zonqing Bai Jin | 2014 | Fuel2014,128,: | 1 |
| 11 | Theoretical analysis of high-speed rail seismic imaging显示文摘We do theoretical research on using high-speed rail(HSR)as an active source to perform reverse time migration(RTM)and analyze the influence of the interferometric field on the seismic imaging results.When a train runs on a rail viaduct,the evenly spaced piers of the viaduct generate a nearly spherical interferometric wavefield with radically travelling waves in frequency-determined directions.We find that the directions span stationary areas of the interference phases,of which cross-talks deteriorating HSR seismic imaging can be well suppressed by stacking.Accordingly,we propose a method for performing RTM by employing HSR data.Numerical tests primarily verify the proposed method by use of 2 D and 3 D acoustic wave equations.Subsequently,we execute least square RTM to suppress crosstalk artifacts,further improving the imaging quality.At last,we stack images derived from trains with different velocities,which extends the frequency band,effectively overcoming the limit from the discrete spectrum of the source wavelet. | Yongxiang SHI Jingchong WEN Jieyuan NING | 2022 | Science China Earth Sciences2022,65,4: | 1 |
| 12 | Effects of organic solvent treatment on the chemical structure and pyrolysis reactivity of brown coal 显示文摘 | Yan Jingchong Bai Zongqing Bai Jin Guo Zhenxing Li Wen | 2014 | Fuel2014,128,: | 1 |
| 13 | Pea-like MoS_(2)@NiS_(1.03)-carbon heterostructured hollow nanofibers for high-performance sodium storage显示文摘The rational synergy of chemical composition and spatial nanostructures of electrode materials play important roles in high-performance energy storage devices.Here,we designed pea-like MoS_(2)@NiS_(1.03)-carbon hollow nanofibers using a simple electrospinning and thermal treatment method.The hierarchical hollow nanofiber is composed of a nitrogen-doped carbon-coated NiS_(1.03) tube wall,in which pea-like uniformly discrete MoS_(2) nanoparticles are enclosed.As a sodium-ion battery electrode material,the MoS_(2)@NiS_(1.03)-carbon hollow nanofibers have abundant diphasic heterointerfaces,a conductive network,and appropriate volume variation-buffering spaces,which can facilitate ion diffusion kinetics,shorten the diffusion path of electrons/ion,and buffer volume expansion during Na^(+)insertion/extraction.It shows outstanding rate capacity and long-cycle performance in a sodium-ion battery.This heterogeneous hollow nanoarchitectures designing enlightens an efficacious strategy to boost the capacity and long-life stability of sodium storage performance of electrode materials. | Songwei Gao Yixiang He Guichu Yue Huaike Li Shuai Li Jingchong Liu Beibei Miao Jie Bai Zhimin Cui Nu Wang Qianfan Zhang Lei Jiang Yong Zhao | 2023 | Carbon Energy2023,5,4: | 1 |
| 14 | Doppler effect in high-speed rail seismic wavefield and its application显示文摘We demonstrate by theoretical analysis that periodically distributed viaduct piers of high-speed rail result in the Doppler effect in the seismic wavefield of high-speed rail at specific frequencies and analyze the Doppler effect’s influence on the wavefield’s spectrum feature.We further verify our theoretical prediction by using observational data of the high-speed rail seismic wavefield in Rongcheng,Hebei Province,China.We find that the wavefield component with a noticeable Doppler effect vibrates in the propagation direction and only has a unique apparent wave speed,indicating that P-wave is dominant.Furthermore,we propose a speed measurement method based on the Doppler effect and measure the wave speed of the medium along the rail.Measurement results are highly stable and consistent. | Yiran JIANG Jieyuan NING Jingchong WEN Yongxiang SHI | 2022 | Science China Earth Sciences2022,65,3: | 1 |
| 15 | Fractionation and characterization of thermal extracts from lignite under ultrasonic-assisted extraction显示文摘Hypercoal(HPC)is promising feedstock for producing coal-based chemicals due to its extremely low ash content and high reactivity.However,the conventional methods for HPC preparation through thermal extraction under mechanical stirring are difficult to scale-up due to the low HPC yield and large consumption of solvent.This work conducted ultrasonic-assisted extraction(UAE)instead of mechanical stirring to enhance the efficiency of HPC production,and the effect of technological conditions on the HPC yield were examined.It was found that the UAE could remarkably enhance the HPC yield from 52.3%to 82.4%.Moreover,the ratio of soluble(HPC-S)to deposit(HPC-D)increased from 1.65 to 2.85,verifying the high efficiency and the capacity of altering the product distribution of UAE. | Xin Zha Shibiao Ren Tao Jiang Jingchong Yan Zhicai Wang Zhiping Lei Chunxiu Pan Shigang Kang Zhanku Li Hengfu Shui | 2021 | Carbon Resources Conversion2021,4,1: | 0 |
| 16 | Tree Ring‑Inspired Fibrous Helix for UV Shielding and Warning Based on Photo‑electricity‑Acoustic Energy Conversion显示文摘Flexible wearable ultraviolet(UV)shielding,monitoring and warning devices have important applications in civil and mili-tary fields.However,most flexible wearable UV devices show unsatisfactory performance due to their poor stability and easy failure at large strains.Herein,inspired by tree rings,we engineered a hierarchical composite nanofibrous helix with an alternately stacked Archimedes spiral structure via a cost-effective strategy.Based on a photo-electricity-acoustic energy conversion system,we fabricated an all-in-one device exhibiting strain-insensitive UV protection at 0–500%strain for UV shielding as well as strain-sensitive UV monitoring at 500–1500%strain for UV early warning.Compared with previously reported common nanofibrous membrane devices,the as-prepared composite nanofibrous helix shows great advantages in terms of stability and UV protection,especially at large strains.Furthermore,the helix demonstrates multiple functions of wear resistance,antibacterial properties,biodegradation and knittability.This versatile strategy holds great promise for wearable electronics and multifunctional devices. | Yan Wang Ziyi Guo Jie Xiong Jingchong Liu Yong Zhao Fengyun Guo | 2023 | Advanced Fiber Materials2023,5,2: | 0 |
| 17 | Regulation of hydrogen evolution performance of titanium oxide-carbon composites at high current density with a Ti-O hybrid orbital显示文摘Rational design and controllable synthesis of practical electrodes with high sta bility and activity at high current density for a hydrogen evolution reaction(HER)are critical for renewable and sustainable energy conversion.However,high-performance TiO_(2)-based electrocatalysts for HER are quite limited,and the cat alytic active centers still remain elusive.Herein,a simple strategy is demonstrated for the synthesis of TiO_(2)-carbon composite(TiO_(2)/C)with high HER performance and stability.The remarkable HER performance of TiO_(2)/C can be ascribed to the doping of carbon atoms,which leads to stronger hybridization of Ti 3d and O 2p orbitals,thus substantially improving the electrocatalytic efficiency.This study elucidates that the hydrogen evolution activity of oxide electrocatalysts can be largely improved by regulating their electronic structures by doping carbon atoms and also provides an effective strategy for designing heterostructured electro catalysts with high catalytic activity and stability at high current density for HER. | Meichen Liu Zhiping Lei Qingping Ke Peixin Cui Jiancheng Wang Jingchong Yan Zhanku Li Hengfu Shui Shibiao Ren Zhicai Wang Ying Kong Shigang Kang | 2022 | Carbon Energy2022,4,3: | 0 |
| 18 | Regularly channeled MXene membranes for ionic and molecular separation显示文摘Membrane-based separation technologies,compared with other traditional separation operations such as evaporation,extraction,precipitation and distillation,have the merits of low energy consumption,small land footprint and high efficiency and have,therefore,attracted wide attention in past decades[1,2].Laminar membranes formed by twodimensional(2D)nanosheet stacking showed high flexibility in adjusting the subnanoscale interlayer spacing to allow the unhindered transport of small ions or molecules,demonstrating high separation performance and economic applicability[3]. | Jingchong Liu Nü Wang | 2021 | Frontiers of Chemical Science and Engineering2021,15,3: | 0 |
| 19 | Fabrication and Applications of Multi-Fluidic Electrospinning Multi-Structure Hollow and Core–Shell Nanofibers显示文摘Recently,electrospinning(ESP)has been widely used as a synthetic technology to prepare nanofibers with unique properties from various raw materials.The applications of functionalized nanofibers have gradually developed into one of the most exciting topics in the field of materials science.In this review,we focus on the preparation of multi-structure fibrous nanomaterials by means of multi-fluidic ESP and review the applications of multi-structure nanofibers in energy,catalysis,and biology.First,the working principle and process of ESP are introduced;then,we demonstrate how the microfluidic concept is com-bined with the ESP technique to the multi-fluidic ESP technique.Subsequently,the applications of multi-structure nanofibers in energy(Li^(+)/Na^(+)batteries and Li–S batteries),hetero-catalysis,and biology(drug delivery and tissue engineering)are introduced.Finally,challenges and future directions in this emerging field are summarized. | Dianming Li Guichu Yue Shuai Li Jing Liu Huaike Li Yuan Gao Jingchong Liu Lanlan Hou Xiaofeng Liu Zhimin Cui Nü Wang Jie Bai Yong Zhao | 2022 | Engineering2022,8,6: | 0 |
| 20 | Boosting chemical looping combustion performances of red mud with transition metal oxides显示文摘Red mud(RM)is industrial solid waste that severely threatens environmental safety,and its resource utilization is significant both economically and ecologically.The presence of ferric oxides(Fe_(2)O_(3))makes RM potential oxygen carriers(OC)for chemical looping combustion(CLC),which is a promising,novel and low-carbon combustion technology.This work examined the CLC performance of two kinds of RM using gaseous and solid fuels.Both Fe_(2)O_(3) and alkali and alkaline-earth metals(AAEM)species within RM enhance carbon conversion during CLC.Nevertheless,the reactivity of original RM is unsatisfactory due to its low oxygen transporting capacity(R_(0),lower than 0.1),carbon conversion(X_(C),less than 0.8),CO_(2) selectivity(Y_(CO_(2)),less than 0.9)and instable performance.Transition metal oxides including CuO and NiO were used to modify the RM through wet impregnation.Both oxides notably improve RM performances,i.e.,X_(C) and Y_(CO_(2)) are notably increased.Still,deteriorations during redox cycles are observed because of particle agglomeration and sintering,especially for the RM modified with NiO.Considering the cost,potential environmental risk and efficacy,CuO is superior to NiO thanks to the enhanced performances of the modified RM-based OC including higher X_(C)(about 0.9),Y_(CO_(2))(approximately 1)and stronger sintering resistance. | Jingchong Yan Li Zhang Jing He Muxin Liu Zhiping Lei Zhanku Li Zhicai Wang Shibiao Ren Hengfu Shui | 2022 | Carbon Resources Conversion2022,5,2: | 0 |