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Conversion reaction lithium metal batteries

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Nano Research 2023年第6期16卷 8219-8252页

作者： Wenbo Lu Zhaopeng Li Huaifang Shang lifang jiao Key Laboratory of Magnetic Molecules and Magnetic Information Materials(Ministry of Education) School of Chemistry and Material ScienceShanxi Normal UniversityTaiyuan 030031China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Renewable Energy Conversion and Storage Center(ReCast)College of ChemistryNankai UniversityTianjin 300071China

Contemporary social problems,such as energy shortage and environmental pollution,require developing green energy storage technologies in the context of sustainable *** the application of secondary battery technology becoming widespread,the development of traditional lithium(Li)-ion batteries,which are based on insertion/deinsertion reactions,has hit a bottleneck;instead,conversion-type lithium metal batteries(LMBs)have attracted considerable attention owing to the high theoretical capacity of Li metal *** this review,Li-S,Li-O_(2),and Li-SOCl_(2)batteries are used as examples to summarize LMBs based on their conversion reactions from the perspectives of cathode material,anode material,electrolyte,separator,and current *** challenges exist regarding the conversion reactions of various *** achieve the optimum performance and improve the application effect,several improvement strategies have been proposed in relation to reasonable designs of next-generation high-performance rechargeable batteries.

关键词： lithium(Li)metal batteries conversion reaction lithium-sulfur battery lithium-oxygen battery lithium-SOCl_(2)battery

Transition-Metal(Fe,Co,and Ni)-Based Nanofiber Electrocatalysts for Water Splitting

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Advanced Fiber Materials 2021年第4期3卷 210-228页

作者： Xuejie Cao Tongzhou Wang lifang jiao Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Renewable Energy Conversion and Storage Center(ReCast)College of ChemistryNankai UniversityTianjin 300071China

Electrochemical water splitting is a fascinating technology for sustainable hydrogen production,and electrocatalysts are essential to accelerate the sluggish hydrogen and oxygen evolution reactions(HER and OER).Transition-metal-based electrocatalysts have attracted enormous interests due to the abundant resources,low cost,and comparable catalytic performance to noble *** these studies,fibrous materials possess distinct advantages,such as unique structure,high active surface area,and fast electron ***,the most recent progress of nanofiber electrocatalysts on synthesis and application in HER and OER is summarized,with emphasis on iron-,cobalt-,and nickel-based ***,the challenge and prospects of fibrous-structured electrocatalysts on water splitting is provided.

关键词： Nanofibers Transition metals Electrocatalysts Hydrogen evolution reaction Oxygen evolution reaction

PEM water electrolysis for hydrogen production:fundamentals,advances,and prospects

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Carbon Neutrality 2022年第1期1卷 323-341页

作者： Tongzhou Wang Xuejie Cao lifang jiao Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Renewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin 300071China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China

Hydrogen,as a clean energy carrier,is of great potential to be an alternative fuel in the *** exchange membrane(PEM)water electrolysis is hailed as the most desired technology for high purity hydrogen production and self-consistent with volatility of renewable energies,has ignited much attention in the past decades based on the high current density,greater energy efficiency,small mass-volume characteristic,easy handling and *** date,substantial efforts have been devoted to the development of advanced electrocatalysts to improve electrolytic efficiency and reduce the cost of PEM *** this review,we firstly compare the alkaline water electrolysis(AWE),solid oxide electrolysis(SOE),and PEM water electrolysis and highlight the advantages of PEM water ***,we summarize the recent progress in PEM water electrolysis including hydrogen evolution reaction(HER)and oxygen evolution reaction(OER)electrocatalysts in the acidic *** also introduce other PEM cell components(including membrane electrode assembly,current collector,and bipolar plate).Finally,the current challenges and an outlook for the future development of PEM water electrolysis technology for application in future hydrogen production are provided.

关键词： PEM water electrolysis Hydrogen production hydrogen evolution reaction Oxygen evolution reaction

Crystalline-amorphous interfaces of NiO-CrO_(x)electrocatalysts for boosting the urea oxidation reaction

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Nano Research 2023年第3期16卷 3665-3671页

作者： Xuejie Cao Tongzhou Wang Hongye Qin Guangliang Lin Lihua Zhao lifang jiao Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Renewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin 300071China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China Tianjin Renai College Tianjin 301636China

The overall energy efficiency of electrochemical systems is severely hindered by the traditional anodic oxygen evolution reaction(OER).Utilizing urea oxidation reaction(UOR)with lower thermodynamic potential to replace OER provides a promising strategy to enhance the energy *** and heterojunctions electrocatalysts have been aroused extensive studies owing to their unique physicochemical properties and outperformed ***,we report a simple method to construct a novel crystalline-amorphous NiO-CrO_(x)heterojunction grown on Ni foam for UOR *** NiO-CrO_(x)electrocatalyst displays excellent UOR performance with an ultralow working potential of 1.32 V at 10 mA·cm^(−2)and ultra-long stability about 5 days even at 100 mA·cm^(−2).In-situ Raman analysis and temperature-programmed desorption(TPD)measurement verify that the presence of the amorphous CrO_(x)phase can boost the reconstruction from NiO to active NiOOH species and enhance adsorption ability of urea ***,the unique crystalline-amorphous interfaces are also benefit to improving the UOR performance.

关键词： NiO-CrO_(x) crystalline-amorphous interfaces electrochemical reconstruction urea oxidation reaction

Electron modulation of cobalt carbonate hydroxide by Mo doping for urea-assisted hydrogen production

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Journal of Energy Chemistry 2022年第7期31卷 258-265,I0007页

作者： Siyu Zheng Hongye Qin Xuejie Cao Tongzhou Wang Wenbo Lu lifang jiao Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Renewable Energy Conversion and Storage Center(Re Cast)College of ChemistryNankai UniversityTianjin 300071China Key Laboratory of Magnetic Molecules and Magnetic Information Materials(Ministry of Education) School of Chemistry and Material ScienceShanxi Normal UniversityTaiyuan 030035ShanxiChina Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China

Combining urea oxidation reaction(UOR) with hydrogen evolution reaction(HER) is an effective method for energy saving and highly efficient electrocatalytic hydrogen production. Herein, molybdenumincorporated cobalt carbonate hydroxide nanoarrays(CoxMoyCH) are designed and synthesized as a bifunctional catalyst towards UOR and HER. Benefiting from the Mo doping, the dispersed nanoarray structure and redistributed electron density, the CoxMoyCH catalyst display outstanding catalytic performance and durability for both HER and UOR, affording the overpotential of 82 m V for HER and delivering a low potential of the 1.33 V for UOR(vs. reversible hydrogen electrode, RHE) to attain a current density of 10 m A cm^(-2), respectively. Remarkably, when CoxMoyCH was applied as bifunctional catalyst in a twoelectrode electrolyzer, a working voltage of 1.40 V is needed in urea-assisted water electrolysis at10 m A cm^(-2) and without apparent decline for 40 h, outperforming the working voltage of 1.51 V in conventional water electrolysis.

关键词： Urea-assisted water electrolysis Bifunctional catalyst Molybdenum doping Cobalt carbonate hydroxides Hydrogen evolution reaction

Influence of interlayer water molecules in Ni-based catalysts for oxygen evolution reaction

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Journal of Energy Chemistry 2021年第2期30卷 316-322,I0011页

作者： Liutao Huang Lei Yang Siwei Guo Yang Li Lihua Zhao lifang jiao Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Renewable Energy Conversion and Storage Center(ReCast)College of ChemistryNankai UniversityTianjin 300071China Renai College of Tianjin University Tianjin 301636China

Nickel-iron layered double hydroxides(NiFe LDHs) have been identified as one of the best promising electrocatalysts-candidates for oxygen evolution reaction(OER). However, the catalytic activity effected by interlayer water molecules is ignored and rarely reported. Herein, Ni(OH)_2, NiFe LDHs vertically aligned Ni foam are designed for OER. As a contrast, the corresponding electrocatalysts with the removal of the interlayer water molecules(Ni(OH)_2-AT, NiFe LDHs-AT) are developed to probe into the influence of the interlayer water molecules towards OER. As expected, NiFe LDH nanoplates exhibit excellent catalytic performance and durability for water electrolysis in alkaline conditions with lower overpotential and smaller Tafel slope compared to those of NiFe LDHs-AT, which are influenced mainly by stability of crystal structure due to the existence of interlayer water molecules. The discovery opens up a similar pathway by controlling the amount of water molecules to boost catalytic performance for studying other electrocatalysts with heteroatom dopant.

关键词： Electrocatalysts Interlayer water molecules Stability of crystal structure

Ni_(2)P/NiMoP heterostructure as a bifunctional electrocatalyst for energy-saving hydrogen production

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eScience 2021年第1期1卷 69-74页

Electrochemical water splitting is a sustainable and feasible strategy for hydrogen production but is hampered by the sluggish anodic oxygen evolution reaction(OER).Herein,an effective approach is introduced to significantly decrease the cell voltage by replacing the anodic OER with a urea oxidation reaction(UOR).A Ni_(2)P/NiMoP nanosheet catalyst with a hierarchical architecture is uniformly grown on a nickel foam(NF)substrate through a simple hydrothermal and phosphorization *** Ni_(2)P/NiMoP achieves impressive HER activity,with a low overpotential of only 22 mV at 10 mA cm^(-2)and a low Tafel slope of 34.5 mV dec^(−1).In addition,the oxidation voltage is significantly reduced from 1.49 V to 1.33 V after the introduction of 0.33 M ***,a two-electrode electrolyzer employing Ni_(2)P/NiMoP as a bifunctional catalyst exhibits a current density of 10 mA cm^(-2)at a cell voltage of 1.35 V and excellent long-term durability after 80 h.

关键词： Hydrogen production Hierarchical architecture Urea oxidation reaction Bifunctional catalyst

Intercalation engineering of layered vanadyl phosphates for high performance zinc-ion batteries

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Journal of Energy Chemistry 2021年第12期30卷 239-245,I0005页

作者： Kunjie Zhu Zhiqin Sun Pei Liu Haixia Li Yijing Wang Kangzhe Cao lifang jiao Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education).Renewable Energy Conversion and Storage Center(ReCast) College of ChemistryNankai UniversityTianjin 30007JChina College of Chemistry and Chemical Engineering Henan Province Key Laboratory of Utilization of Non-Metallic Mineral in the South of Henan.Xinyang Normal University.Xinyang.Henan 464000.China

Aqueous zinc-ion batteries(ZIBs) have attracted great attention as the candidates for large-scale energy storage system,recently,because of their low cost,environment-friendly,high safety,and high theoretical energy *** the numerous cathode materials,layered structure vanadium based polyanionic compounds,such as VOPO_(4),exhibit high specific capacity for Zn ion ***,the low Zn ion diffusion coefficient and limited interlayer spacing make the cathodes low reversible capacity and inferior cycling ***,K ions were pre-intercalated into the VOPO_(4) layers via ions exchange adopting VOPO_(4)·2 H_(2) O as the *** evaluated as the cathode for ZIBs,an excellent cycle stability of 400 cycles under a current density of 500 mA g^(-1) was achieved by the obtained KVOPO_(4) electrode,verifying the positive effect of intercalation ***,a solid-solution reaction Zn ion storage mechanism was *** study provides a new insight to explore high performance cathode materials for ZIBs.

关键词： Aqueous zinc-ion batteries Intercalation engineering Layered materials KVOPO_(4) Excellent performance

Structure and electrochemical performance of hydrogen storage alloy La_(0.7)Mg_(0.3)Ni_(2.875)Co_(0.525)Mn_(0.1)-boron composite

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Rare Metals 2006年第z1期25卷 261-265页

作者： LIU Yi WANG Yijing XIAO Lingling CAO Jiansheng jiao lifang FENG Yan YUAN Huatang Institute of New Energy Material Chemistry Nankai UniversityTianjin 300071China

The structure and electrochemical characteristics of La_(0.7)Mg_(0.3)Ni_(2.875)Co_(0.525)Mn_(0.1)-boron composite was studied *** AB_(3) type hydrogen storage alloys La_(0.7)Mg_(0.3)Ni_(2.875)Co_(0.525)Mn_(0.1) were successfully synthesized by means of inter-media alloy La_(2)Mg_(17).The alloys were composited with boron at different weight *** the XRD analyses,each alloy of this series is mainly composed of(La,Mg)Ni_(3) phase and the LaNi_(5) phase,and the phase abundance of each phase varies with the boron weight rate,moreover,after composition,the c and cell volumes of(La,Mg)Ni_(3) phase increase,and the LaNi_(5) phase keep the same,which indicate that the boron may enter(La,Mg)Ni_(3) *** electrochemical studies show that the maximum discharge capacity of the composites decreases,but the cycling life *** the high rate discharge ability and exchange impendence spectroscopy(EIS)of the AB_(3) alloys and its composite were also studied.

关键词： AB_(3)type hydrogen storage alloys composite materials structure characteristics electrochemical performance