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Transactions of Tianjin University 2023年第5期29卷 395-405页

作者： Hongyu Zhao Jie Yin pinxian xi State Key Laboratory of Applied Organic Chemistry Frontiers Science Center for Rare IsotopesKey Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou 730000China

Oxygen evolution reaction(OER)in acid media has been intensively studied recently for its important role in proton exchange membrane ***_(2)-based nanomaterials have been widely used in various applications for their redox properties,oxygen vacancy,and surface ***_(2)-based nanocatalysts also exhibit superior catalytic performance in OER in acid ***,we fabricated a highly effi cient catalytic interface between IrO x and CeO_(2)(IrO x/CeO_(2)),which showed a boosting OER activity with an overpotential of 217 mV at the current density of 10 mA/cm 2 and long-term stability for 10 h in 0.5 mol/L H_(2)SO_(4),which were better than those of many reported *** in situ diff erential electrochemical mass spectrometry results demonstrated that IrO x/CeO_(2)and the commercial IrO 2(IrO 2-com)followed the adsorbate evolution mechanism,whereas the pure CeO_(2)surface followed the lattice oxygen oxidation mechanism under the same conditions for *** indicated that the interface of IrO x and CeO_(2)improved mass transfer effi ciency and reactivity,which also prevented the lattice oxygen evolution in the CeO_(2)structure and protected the whole *** work fi nds a new way for OER in acid media catalyzed by CeO_(2)-based nanocatalysts and promotes the design strategy for other CeO_(2)-based nanostructures.

关键词： OER Rare-earth oxide Ir-O cluster Acid electrolyte

Construction of surface lattice oxygen in metallic N-CuCoS1.97 porous nanowire for wearable Zn-air battery

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Journal of Energy Chemistry 2019年第7期28卷 1-9页

作者： Jie Yin Binbin Wei Yuxuan Li Yefei Li pinxian xi State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Provinceand College of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou 730000GansuChina PetroChina Lanzhou Lubricating Oil R&D Institute Lanzhou 730000GansuChina Collaborative Innovation Center of Chemistry for Energy Material Key Laboratory of Computational Physical Science(Ministry of Education)Shanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsDepartment of ChemistryFudan UniversityShanghai 200433China

Achieving high activity and stability oxygen evolution reaction(OER) catalysts to optimize the efficiency of metal-air battery, water splitting and other energy conversion devices, remains a formidable ***, we demonstrate the metallic porous nanowires arrays with abundant defects via nitrogen and copper codoped CoS1.97 nanowires(N-CuCoS1.97 NWs). The N-CuCoS1.97 NWs can serve as an excellent OER self-supported electrode with an overpotential of 280 mV(j = 10 m A cm-2) and remarkable long-term stability. The X-ray absorption near-edge structure(XANES) and X-ray photoelectron spectrum(XPS) measurements confirmed the surface lattice oxygen created on the N-CuCoS1.97 NWs during OER. Then, the density function theory(DFT) results evident that lattice oxygen constructed surface of N-CuCoS1.97 NWs has more favorable OER energetic profiles and absorption for reaction intermediate. More importantly,the flexible and wearable Zn-air battery fabricated by the N-CuCoS1.97 NWs shows excellent rechargeable and mechanical stability, which can be used in portable mobile device.

关键词： DFT calculation Porous nanowires Electrocatalyst OER Zn-air battery

Precisely Control Relationship between Sulfur Vacancy and H Absorption for Boosting Hydrogen Evolution Reaction

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Nano-Micro Letters 2024年第4期16卷 14-24页

作者： Jing Jin xinyao Wang Yang Hu Zhuang Zhang Hongbo Liu Jie Yin pinxian xi College of Chemistry and Chemical Engineering Frontiers Science Center for Rare IsotopesState Key Laboratory of Applied Organic ChemistryLanzhou UniversityLanzhou 730000People’s Republic of China

Ef fective and robust catalyst is the core of water splitting to produce ***, we report an anionic etching method to tailor the sulfur vacancy(VS) of NiS_(2) to further enhance the electrocatalytic performance for hydrogen evolution reaction(HER). With the VS concentration change from 2.4% to 8.5%, the H* adsorption strength on S sites changed and NiS_(2)-VS 5.9% shows the most optimized H* adsorption for HER with an ultralow onset potential(68 m V) and has long-term stability for 100 h in 1 M KOH media. In situ attenuated-total-reflection Fourier transform infrared spectroscopy(ATR-FTIRS) measurements are usually used to monitor the adsorption of intermediates. The S-H* peak of the Ni S_(2)-VS 5.9% appears at a very low voltage, which is favorable for the HER in alkaline media. Density functional theory calculations also demonstrate the Ni S_(2)-VS 5.9% has the optimal |ΔG^(H*)| of 0.17 e V. This work offers a simple and promising pathway to enhance catalytic activity via precise vacancies strategy.

关键词： Hydrogen evolution reaction S vacancies Nanosheet H Adsorption

Applications of Rare Earth Promoted Transition Metal Sulfides in Electrocatalysis

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Chinese Journal of Chemistry 2023年第14期41卷 1740-1752页

作者： Wei Shen Jiamin Zhu Yang Hu Jie Yin Yao Zheng pinxian xi State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhouGansu730000 China School of Chemical Engineering and Advanced Materials The University of AdelaideAdelaideSouth Australia5005 Australia

With the rapid consumption of fossil fuels and the resulting environmental problems,researchers are working to find sustainable alternative energy and energy storage and conversion *** metal sulfur compounds have attracted extensive attention due to their excellent electrical conductivity,low cost,adjustable components and good electrocatalytic *** an alternative to noble metal catalysts,they have emerged as a promising ***,their low catalytic activity and poor stability limit their large-scale practical *** earth elements,known as industrial vitamins,are widely used in various fields due to their special redox properties,oxygen affinity and electronic ***,the construction of rare earth promoted transition metal sulfides is of far-reaching significance for the development of ***,we review the applications of various rare earth promoted transition metal sulfides in energy storage and conversion in recent years,which focuses on three ways in rare earth promoted transition metal sulfide,including doping,interfacial modification engineering and structural *** well,these materials are used in electrochemical reactions such as OER,HER,ORR,CO_(2)RR,and so on,in order to explore the important role of rare earth in the field of electrocatalysis,the future challenges and opportunities.

关键词： Rare earth Transition metal sulfide Electrocatalysis Doped Interface Water splitting Catalytic activity Redox reactions

Ruthenium-modified porous NiCo2O4 nanosheets boost overall water splitting in alkaline solution

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Chinese Chemical Letters 2022年第11期33卷 4930-4935页

作者： Rui Yang Xuezhao Shi Yanyan Wang Jing Jin Hanwen Liu Jie Yin Yong-Qing Zhao pinxian xi State Key Laboratory of Applied Organic Chemistry Frontiers Science Center for Rare Isotopes College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000China Lanzhou Jinchuan Advanced Materials Technology Co. Ltd.Jinchang 737100China

Exploring efficient oxygen evolution reaction(OER)and hydrogen evolution reaction(HER)electrocatalysts is crucial for developing water splitting *** composition and structure of catalysts are of great importance for catalytic *** this work,a heterogeneous Ru modified strategy is engineered to improve the catalytic performance of porous NiCo_(2)O_(4)nanosheets(NSs).Profiting from favorable elements composition and optimized structure property of decreased charge transfer barrier,more accessible active sites and increased oxygen vacancy concentration,the Ru-NiCo_(2)O_(4)NSs exhibits excellent OER activity with a low overpotential of 230 mV to reach the current density of 10 mA/cm^(2)and decent ***,Ru-NiCo_(2)O_(4)NSs show superior HER activity than the pristine NiCo_(2)O_(4)NSs,as *** assembling Ru-NiCo_(2)O_(4)NSs couple as an alkaline water electrolyzer,a cell voltage of 1.60 V can deliver the current density of 10 mA/cm^(2).This work provides feasible guidance for improving the catalytic performance of spinel-based oxides.

关键词： Ru modification Porous nanosheets Oxygen vacancy Spinel-based oxides Water splitting

Atomic-level correlation between the electrochemical performance of an oxygen-evolving catalyst and the effects of CeO_(2) functionalization

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Nano Research 2022年第4期15卷 2994-3000页

作者： Yanyan Li Wen Luo Duojie Wu Qi Wang Jie Yin pinxian xi Yongquan Qu Meng Gu xinyu Zhang Zhouguang Lu Zhiping Zheng School of Chemistry and Chemical Engineering Harbin Institute of TechnologyHarbin 150001China Department of Chemistry Guangdong Provincial Key Laboratory of Energy Materials for Electric PowerSouthern University of Science and TechnologyShenzhen 518055China Key Laboratory of Energy Conversion and Storage Technologies(Southern University of Science and Technology) Ministry of EducationShenzhen 518055China Department of Materials Science and Engineering Shenzhen Key Laboratory of Interfacial Science and Engineering of MaterialsSouthern University of Science and TechnologyShenzhen 518055China Department of Materials Science and Engineering Guangdong Provincial Key Laboratory of Energy Materials for Electric PowerSouthern University of Science and TechnologyShenzhen 518055China Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Research Centre of Biomedical NanotechnologyLanzhou UniversityLanzhou 730000China School of Chemical Engineering and Technology Center for Applied Chemical ResearchFrontier Institute of Science and TechnologyXi'an Jiaotong UniversityXi'an 710049China

Herein,we prepared a bimetallic layered double hydroxide(FeCo LDH)featuring a dandelion-like *** of CeO_(2)onto FeCo LDH produced interfaces between the functionalizing CeO_(2)and the parent *** electrochemical studies were carried *** potential,overpotential,and Tafel slope point to the superior oxygen-evolving performance of CeO_(2)-FeCo LDH with respect to FeCo LDH,therefore,demonstrating the merits of CeO_(2)*** electronic structures of Fe,Co,and Ce were analyzed by X-ray photoelectron spectroscopy(XPS)and electron energy loss spectroscopy(EELS)from which the increase of Co^(3+)and the concurrent lowering of Ce^(4+)were *** the use of CeO_(2)-FeCo LDH,accelerated formation at a sizably reduced potential of Co-OOH,one of the key intermediates preceding the release of O_(2)was observed by in situ Raman *** now have the atomic-level and location-specific evidence,the increase of the active Co^(3+)across the interface to correlate the enhanced catalytic performance with CeO_(2)functionalization.

关键词： CeO_(2)nanoparticles metal layered double hydroxides(LDHs) oxygen evolution reaction intermediate conversion

Construction and Application of Interfacial Inorganic Nanostructures

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Chinese Journal of Chemistry 2020年第7期38卷 772-786,I0002页

作者： Rui Wang Yicheng Wei Li An Rui Yang Linchuan Guo Zheng Weng Pengfei Da Wenqing Chen Jing Jin Jianyi Li pinxian xi State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhouGansu 730000China

Interfacial nanostructured materials have stimulated extensive interests in the research areas of green energy production and conversion due to their unique structures and *** interfacial crystalline structures with rich intrinsic defects,such as oxygen vacancies,adatoms,grain bounda-ries,and substitutional impurities,have led to unique activities in a variety of catalytic *** rational design and engineering development of the interfaces provide an attractive way to optimize the catalytic performance and finally improve the efficiency of energy conversion and ***,a comprehensive overview of interfacial inorganic nanostructures and their electrocatalytic applications are summarized,and some future challenge and opportunity have also been proposed.

关键词： interfacial attractive summarized

Synthesis of silk-like FeS_2/NiS_2 hybrid nanocrystals with improved reversible oxygen catalytic performance in a Zn-air battery

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Chinese Journal of Catalysis 2019年第1期40卷 43-51页

作者： Jing Jin Jie Yin Hanwen Liu pinxian xi State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou 730000GansuChina

The development of highly active and stable reversible oxygen electrocatalysts is crucial for improving the efficiency of metal‐air battery ***,an efficient liquid exfoliation strategy was designed for producing silk‐like FeS2/NiS2 hybrid nanocrystals with enhanced reversible oxygen catalytic performance that displayed excellent properties for Zn‐air *** of the unique silk‐like morphology and interface nanocrystal structure,they can catalyze the oxygen evolution reaction(OER)efficiently with a low overpotential of 233 mV at j=10 mA cm?*** is an improvement from the recently reported catalysts in 1.0 M ***,the oxygen reduction reaction(ORR)activity of the silk‐like FeS2/NiS2 hybrid nanocrystals showed an onset potential of 911 mV and a half‐wave potential of 640 *** addition,the reversible oxygen electrode activity of the silk‐like FeS2/NiS2 hybrid nanocrystals was calculated to be 0.823 V,based on the potential of the OER and ***,the homemade rechargeable Zn‐air batteries using FeS2/NiS2 hybrid nanocrystals as the air‐cathode displayed a high open‐circuit voltage of 1.25 V for more than 17 h and an excellent rechargeable performance for 25 *** solid Zn‐air batteries exhibited an excellent rechargeable performance for 15 *** study provided a new method for designing interface nanocrystals with a unique morphology for efficient multifunctional electrocatalysts in electrochemical reactions and renewable energy devices.

关键词： Silk‐like FeS2/NiS2 Interface nanocrystal Reversible oxygen electrocatalyst Zn‐air battery

Surface chlorine doped perovskite‐type cobaltate lanthanum for water oxidation

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Chinese Journal of Catalysis 2022年第6期43卷 1485-1492页

作者： Wei Shen Jing Jin Yang Hu Yichao Hou Jie Yin Zhenhui Ma Yong‐Qing Zhao pinxian xi State Key Laboratory of Applied Organic Chemistry Frontiers Science Center for Rare IsotopesKey Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou 730000GansuChina Department of Physics Beijing Technology and Business UniversityBeijing 100048China

Rationally manipulating the in‐situ formed catalytically active surface of catalysts remains a great challenge for a highly efficient water ***,we report a cationic oxidation method which can adjust the leaching of the in‐situ catalyst and promote the reconstruction of dynamic surface for the oxygen evolution reaction(OER).The chlorine doping can reduce the possibility of triggering in‐situ cobalt oxidation and chlorine leaching,leading to a transformation of the surface chlorine doped LaCoO_(3)(Cl‐LaCoO_(3))into an intricate amorphous(oxygen)hydroxide *** thus,Cl‐LaCoO_(3)nanocrystals shows an ultralow overpotential of 342 mV at the current density of 10 mA cm^(–2)and Tafel slope of 76.2 mV dec–*** reconstructed Cl‐LaCoO_(3)is better than many of the most advanced OER catalysts and has proven significant *** work provides a new prospect for designing a high‐efficiency electrocatalyst with optimized perovskite‐structure in renewable energy system.

关键词： Surface reconstruction LaCoO_(3) Chlorine doped Hollow cube Oxygen evolution reaction

有机配体表面改性NiCo2O4纳米线用于水全分解

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物理化学学报 2022年第6期38卷 130-137页

作者：孙轲赵永青殷杰靳晶刘翰文席聘贤功能有机分子化学国家重点实验室甘肃省有色金属化学与资源利用重点实验室兰州大学化学化工学院兰州730000

由于水分解在绿色能源领域的重要作用,能够在碱性介质中进行析氢(HER)和析氧(OER)反应的双功能电催化剂具有重要的应用价值。本文报道一种具有丰富缺陷的表面改性NiCo_(2)O_(4)纳米线(NWs),在碱性介质中作为一种高效的整体水裂解电催化... 详细信息

由于水分解在绿色能源领域的重要作用,能够在碱性介质中进行析氢(HER)和析氧(OER)反应的双功能电催化剂具有重要的应用价值。本文报道一种具有丰富缺陷的表面改性NiCo_(2)O_(4)纳米线(NWs),在碱性介质中作为一种高效的整体水裂解电催化剂。X射线光电子能谱(XPS)分析表明,Co^(2+)/Co^(3+)比值的增加是表面修饰NiCo_(2)O_(4)纳米线具有优异双功能电催化性能的重要原因。结果表明,在1.0 mol·L^(−1)KOH溶液中,通过有机配体主导的表面改性,优化后的NiCo_(2)O_(4)纳米线在电流密度达到10 mA·cm^(−2)时的HER过电位仅为83 mV,OER过电位仅为280 mV。更重要的是,有机配体表面改性后的NiCo_(2)O_(4)纳米线表现出了出色的水分解性能,在2.1 V电压下达到了100 mA·cm^(−2)的电流密度。目前的工作凸显了提高NiCo_(2)O_(4)NWs尖晶石结构中Co^(2+)含量对促进整体水裂解的重要性。

关键词：双功能电催化剂有机配体界面表面修饰纳米线水全分解