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Epitaxial growth triggered core-shell Pd@RuP nanorods for high-efficiency electrocatalytic hydrogen evolution

Journal of Energy Chemistry 2023年第11期86卷 510-517,I0011页

作者： Jiaqian Ding Xian Jiang Caikang Wang Zhuoya Zhu Chang Xu Yi Zhou Xuan Wang Qicheng Liu Zhenyuan Liu Yawen Tang Jun Lin Gengtao Fu Jiangsu Key Laboratory of New Power Batteries Jiangsu Collaborative Innovation Center of Biomedical Functional MaterialsSchool of Chemistry and Materials ScienceNanjing Normal UniversityNanjing 210023JiangsuChina School of New Energy Nanjing University of Science and TechnologyJiangyin 214443JiangsuChina School of Materials Science and engineering Jiangsu University of Science and TechnologyZhenjiang 212100JiangsuChina

Ru with Pt-like hydrogen bond strength,knockdown cost(~1/3 of Pt),and eximious stability is a competitive replacement for Pt-based catalysts towards the hydrogen evolution reaction(HER)in water splitting.The design of Ru-based catalysts via interface construction,crystal phase control,and specific light element doping to realize the impressive promotion of limited activity and stability remains challenging.Herein,we report the fabrication of Pd@RuP core-shell nanorods(NRs)via an epitaxial growth method,where ultrathin RuP shells extend the face-centered cubic(fcc)crystal structure and(111)plane of the Pd NRs core.Density functio nal theory results confirm that the core-s hell interface engineering and P doping synergistically accelerate electron transfer and moderate the d-band center to generate a suitable affinity for H*,thus optimizing HER kinetics.Compared with Pd@Ru NRs and Pt/C,the Pd@RuP NRs exhibit preferable electrocatalytic stability and superior activity with a low overpotential of 18 mV at 10 mA cm-2in the alkaline HER process.Furthermore,the integrated Pd@RuP//RuO2-based electrolyzer also displays a low operation potential of 1.42 V to acquire 10 mA cm-2,demonstrating great potential for practical water electrolysis.Our work presents an efficient avenue to design Ru-based electrocatalysts via epitaxial growth for extraordinary HER performance.

关键词： Pd@RuP Epitaxial growth interface engineering Hydrogen evolution Electrocatalyst

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Smart Interfacing between Co-Fe Layered Double Hydroxide and Graphitic Carbon Nitride for High-efficiency Electrocatalytic Nitrogen Reduction

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Energy & Environmental Materials 2023年第2期6卷 62-69页

作者： Xiaohui Wu Lu Tang Yang Si Chunlan Ma Peng Zhang Jianyong Yu Yitao Liu Bin Ding Key Laboratory of High Performance Fibers&Products(Ministry of Education) College of TextilesDonghua UniversityShanghai 201620China Innovation Center for Textile Science and Technology Donghua UniversityShanghai 200051China Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application School of Physical Science and TechnologySuzhou University of Science and TechnologySuzhou 215009China State Center for International Cooperation on Designer Low-carbon&Environmental Materials(CDLCEM) School of Materials Science and EngineeringZhengzhou UniversityZhengzhou 450001China

Bimetallic compounds such as hydrotalcite-type layered double hydroxides(LDHs)are promising electrocatalysts owing to their unique electronic structures.However,their abilities toward nitrogen adsorption and reduction are undermined since the surface-mantled,electronegative-OH groups hinder the charge transfer between transition metal atoms and nitrogen molecules.Herein,a smart interfacing strategy is proposed to construct a coupled heterointerface between LDH and 2D g-C_(3)N_(4),which is proven by density functional theory(DFT)investigations to be favorable for nitrogen adsorption and ammonia desorption compared with neat LDH surface.The interfaced LDH and g-C_(3)N_(4) is further hybridized with a self-standing TiO_(2) nanofibrous membrane(NM)to maximize the interfacial effect owing to its high porosity and large surface area.Profited from the synergistic superiorities of the three components,the LDH@C_(3)N_(4)@TiO_(2) NM delivers superior ammonia yield(2.07×10^(−9) mol s^(−1) cm^(−2))and Faradaic efficiency(25.3%),making it a high-efficiency,noble-metal-free catalyst system toward electrocatalytic nitrogen reduction.

关键词： density functional theory electrocatalytic nitrogen reduction graphitic carbon nitride interface engineering layered double hydroxide

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The opportunities and challenges of ionic liquids in perovskite solar cells

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Journal of Energy Chemistry 2023年第2期77卷 157-171,I0005页

作者： Jian Yang Jianfei Hu Wenhao Zhang Hongwei Han Yonghua Chen Yue Hu Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074HubeiChina Key Laboratory of Flexible Electronics(KLOFE)&Institution of Advanced Materials(IAM) Nanjing Tech University(NanjingTech)30 South Puzhu RoadNanjing 211816JiangsuChina

Metal halide perovskite solar cells(PSCs)have shown great potential to become the next generation of photovoltaic devices due to their simple fabrication techniques,low cost,and soaring power conversion efficiency(PCE).However,mismatched with the quickly updated PCEs,the improvement of device stability is challenging and still remains a critical hurdle in the path to commercialization.Recently,ionic liquids(ILs)have been found to play multiple roles in obtaining efficient and stable PSCs.These ILs usually consist of large organic cations and organic or inorganic anions,which have weak electrostatic attraction and are generally liquid at around 100℃.ILs are almost non-volatile,non-flammable,with high ionic conductivity and excellent thermal and electrochemical stability.The roles of ILs in PSCs vary with their composition,that is,the types of anions and cations.In this review,we summarize the roles of anions and cations in terms of precursor solutions,additives,perovskite/charge transport layer interface engineering,and charge transport layers.This article aims to set up a structure–property-stability-performance correlations conferred by the IL in PSC and provide assistance for the anion and cation selection for improving the quality of perovskite film,optimizing interface contact,reducing defect states,and improving charge extraction and transport characteristics.Finally,the application of IL in PSCs is discussed and prospected.

关键词： Perovskite solar cells Ionic liquid Anions and cations Additive interface engineering

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Elucidating the promotion mechanism of the ternary cooperative heterostructure toward industrial-level urea oxidation catalysis

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Journal of Energy Chemistry 2023年第10期85卷 116-125,I0005页

作者： Xiujuan Xu Xiaotong Wei Liangliang Xu Minghua Huang Arafat Toghan School of Materials Science and engineering Ocean University of ChinaQingdao 266100ShandongChina Department of Chemical and Biomolecular engineering Korea Advanced Institute of Science and Technology(KAIST)291 Daehak-RoYuseong-GuDaejeon 34141Republic of Korea Chemistry Department College of ScienceImam Mohammad Ibn Saud Islamic University(IMSIU)Riyadh 11623Saudi Arabia Chemistry Department Faculty of ScienceSouth Valley UniversityQena 83523Egypt

From the perspective of electronic structure modulation,it is highly desirable to rationally design the active urea oxidation reaction(UOR)catalysts through interface engineering.The binary cooperative heterostructure systems have been shown significant enhancement for catalyzing UOR,but their performance still remains unsatisfactory for industrialization because of the unfavorable intermediate adsorption/desorption and deficient electron transfer channels.In response,taking the ternary cooperative Ni_5P_(4)/NiSe_(2)/Ni_(3)Se_(4) heterostructure as the proof-of-concept paradigm,a catalytic model is rationally put forward to elucidate the UOR promotion mechanism at the molecular level.The rod-like Ni_5P_(4)/NiSe_(2)/Ni_(3)Se_(4) nanoarrays with three-phase heterojunction are experimentally fabricated on Ni foam(named as Ni_5P_(4)/NiSe_(2)/Ni_(3)Se_(4)/NF)via simple two-step processes.The density functional theory calculations disclose that construction of Ni_5P_(4)/NiSe_(2)/Ni_(3)Se_(4) heterostructure model not only induce charge redistribution at the interfacial region for creating innumerable electron transfer channels,but also endow it with a moderate d-band center that could help to build a balance between adsorption and desorption of diverse UOR intermediates.Benefiting from the unique rod-like nanoarrays with large specific surface area and the optimized electronic structure,the well-designed Ni_5P_(4)/NiSe_(2)/Ni_(3)Se_(4)/NF could act as a robust catalyst for driving UOR at industrial-level current densities under tough environments,offering great potential for commercial applications.

关键词： Urea oxidation reaction Ternary cooperative heterostructure Electronic structure interface engineering

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Recent progress of inverted organic-inorganic halide perovskite solar cells

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Journal of Energy Chemistry 2023年第4期79卷 168-191页

作者： Dongyang Li Yulan Huang Zhiwei Ren Abbas Amini Aleksandra B.Djurišic Chun Cheng Gang Li Department of Electronic and Information engineering Research Institute for Smart Energy(RISE) The Hong Kong Polytechnic UniversityHong Kong 999077China Department of Materials Science and engineering Southern University of Science and TechnologyShenzhen 518055GuangdongChina Guangdong Provincial Key Laboratory of Energy Materials for Electric Power Southern University of Science and TechnologyShenzhen 518055GuangdongChina Department of Physics The University of Hong KongHong Kong 999077China Centre for Infrastructure engineering Western Sydney UniversityPenrith 2751NSWAustralia

In recent years,inverted perovskite solar cells(IPSCs)have attracted significant attention due to their low-temperature and cost-effective fabrication processes,hysteresis-free properties,excellent stability,and wide application.The efficiency gap between IPSCs and regular structures has shrunk to less than 1%.Over the past few years,IPSC research has mainly focused on optimizing power conversion efficiency to accelerate the development of IPSCs.This review provides an overview of recent improvements in the efficiency of IPSCs,including interface engineering and novel film production techniques to overcome critical obstacles.Tandem and integrated applications of IPSCs are also summarized.Furthermore,prospects for further development of IPSCs are discussed,including the development of new materials,methods,and device structures for novel IPSCs to meet the requirements of commercialization.

关键词： Inverted perovskite solar cells interface engineering Additive engineering Tandem solar cells Integrated solar cells

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Photovoltaic-powered supercapacitors for driving overall water splitting:A dual-modulated 3D architecture

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Carbon Energy 2022年第6期4卷 1262-1273页

作者： Zixu Sun Lijuan Sun See Wee Koh Junyu Ge Jipeng Fei Mengqi Yao Wei Hong Shude Liu Yusuke Yamauchi Hong Li Key Lab for Special Functional Materials of Ministry of Education National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting TechnologyCollaborative Innovation Center of Nano Functional Materials and ApplicationsSchool of Materials Science and EngineeringHenan UniversityKaifengPeople's Republic of China School of Mechanical and Aerospace engineering Nanyang Technological UniversitySingaporeSingapore School of Electronic and Information Zhongyuan University of TechnologyZhengzhouPeople's Republic of China JST-ERATO Yamauchi Material Space-Tectonics Project National Institute for Materials Science(NIMS)TsukubaIbarakiJapan Australian Institute for Bioengineering and Nanotechnology(AIBN) The University of QueenslandBrisbaneQueenslandAustralia

Due to the growing demand for clean and renewable hydrogen fuel,there has been a surge of interest in electrocatalytic water-splitting devices driven by renewable energy sources.However,the feasibility of self-driven water splitting is limited by inefficient connections between functional modules,lack of highly active and stable electrocatalysts,and intermittent and unpredictable renewable energy supply.Herein,we construct a dualmodulated three-dimensional(3D)NiCo_(2)O_(4)@NiCo_(2)S_(4)(denoted as NCONCS)heterostructure deposited on nickel foam as a multifunctional electrode for electrocatalytic water splitting driven by photovoltaic-powered supercapacitors.Due to a stable 3D architecture configuration,abundant active sites,efficient charge transfer,and tuned interface properties,the NCONCS delivers a high specific capacity and rate performance for supercapacitors.A twoelectrode electrolyzer assembled with the NCONCS as both the anode and the cathode only requires a low cell voltage of 1.47 V to achieve a current density of 10 mA cm^(−2) in alkaline electrolyte,which outperforms the state-of-the-art bifunctional electrocatalysts.Theoretical calculations suggest that the generated heterointerfaces in NCONCS improve the surface binding capability of reaction intermediates while regulating the local electronic structures,which thus accelerates the reaction kinetics of water electrolysis.As a proof of concept,an integrated configuration comprising a two-electrode electrolyzer driven by two series-connected supercapacitors charged by a solar cell delivers a high product yield with superior durability.

关键词： hybrid energy systems interface engineering morphology control solar-to-hydrogen trifunctional electrode

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Garnet-type solid-state electrolytes:crystal structure,interfacial challenges and controlling strategies

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Rare Metals 2023年第10期42卷 3177-3200页

作者： Ting-Ting Wu Sijie Guo Bing Li Chang-Yu Shen Xian-Hu Liu An-Min Cao National engineering Research Center for Advanced Polymer Processing Technology Key Laboratory of Advanced Material Processing&Mold(Ministry of Education)Zhengzhou UniversityZhengzhou450002China CAS Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular SciencesInstitute of ChemistryChinese Academy of Sciences(CAS)Beijing100190China University of Chinese Academy of Sciences Beijing100049China

All-solid-state batteries(ASSBs) hold great promise for next-generation energy storage technologies owing to their advantage in different aspects such as energy density,safety,and wide temperature tolerance.However,the use of solid-state electrolytes(SSEs) instead of liquid ones meanwhile brings serious concerns related to the point-to-point contact between SSEs and electrodes,which is known to result in high interface resistance and inhomogeneous distribution of charges during the Li^(+)plating/stripping process,eventually leading to a premature failure of ASSBs.This review focuses on the garnet-type SSEs in the formula of Li_(7)La_(3)Zr_(2)O_(12)(LLZO),and discusses the structure-performance relationship of this ceramic electrolyte in detail to achieve a clear understanding of its Li^(+)transmission mechanism.Meanwhile,the challenges of cubic phase LLZO(c-LLZO) for their application in solidstate batteries(SSBs) are demonstrated by the Li/LLZO interface,which features the importance of Li metal wettability and dendrite suppression for sustainable performance.Furthermore,this review summarizes the recent research strategies to combat these contact issues at the Li/LLZO interface,highlighting the essential role played by surface modification of LLZO electrolytes.Following the obtained insights,perspectives for future research on LLZO to accelerate its potential development of SSBs in commercialized applications are also provided.

关键词： Solid-state electrolytes(SSEs) Garnet-type electrolytes Li^(+)ion conductivity interface engineering Lithium dendrites

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Moisture influence in emerging neuromorphic device

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Frontiers of physics 2023年第5期18卷 133-142页

作者： Wenhua Wang Guangdong Zhou College of Artificial Intelligence Southwest UniversityChongqing 400715China

Conduction filament formation,redox reaction,and mobile ion migration in solid electrolytes underpin the memristive devices,all of which are partially influenced or fully dominated by the moisture.The moisture-based physical-chemistry mechanism provides an electric tunable method to create enough dissociate conductance states for neuromorphic computing,but overconcentration moisture will corrode electrode and then causes device invalidation.This perspective goal is that surveys the moisture-dependency of dynamic at interfaces or/and switching function layer,clarifies the bottlenecks that the memristive device facing in terms of water molecule-related reaction,and gives the possible solutions.

关键词： memristor moisture redox reaction oxide interface engineering

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Porphyrin-based heterogeneous photocatalysts for solar energy conversion

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Chinese Chemical Letters 2022年第1期33卷 33-60页

作者： Yuheng Zhang Kang Ren Lu Wang Lin Wang Zhuangjun Fan State Key Laboratory of Heavy Oil Processing School of Materials Science and EngineeringChina University of Petroleum(East China)Qingdao 266580China

In recent years,porphyrins with a similar structure to chlorophyll are often used as photosensitizers or reaction centers to improve the light absorption capacity or catalytic selectivity of existing photocatalytic systems.However,photocatalytic reactions include photoelectric conversion,photocarrier transport,and surface reaction,which requires the overall design of porphyrin-based photocatalysts.In this paper,the research work of porphyrin molecular design in heterogeneous photocatalysis in recent years is reviewed.Besides,the application of interface control and spatial confinement effect in porphyrin-based hybrid photocatalyst is introduced.Finally,the future development direction of porphyrin-based photocatalysts is prospected and the main challenges in the research of porphyrin-based photocatalysts are given.

关键词： Porphyrin Photocatalyst Molecular design interface engineering Organic framework

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Stable Ni-rich layered oxide cathode for sulfide-based all-solid-state lithium battery

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eScience 2022年第5期2卷 537-545页

作者： Yue Wang Zhixuan Wang Dengxu Wu Quanhai Niu Pushun Lu Tenghuan Ma Yibo Su Liquan Chen Hong Li Fan Wu Tianmu Lake Institute of Advanced Energy Storage Technologies Liyang213300JiangsuChina Yangtze River Delta Physics Research Center Liyang213300JiangsuChina Key Laboratory for Renewable Energy Beijing Key Laboratory for New Energy Materials and DevicesBeijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing100190China University of Chinese Academy of Sciences Beijing100049China Nano Science and Technology Institute University of Science and Technology of ChinaSuzhou215123China Science and Technology Research Institute China Three Gorges Corporation Beijing China

Sulfide-based all-solid-state lithium-ion batteries(ASSLIBs)are one of the most promising energy storage technologies due to their high safety and ionic conductivity.To achieve greater energy density,a Ni-rich layered oxide LiNi_(x)Co_(y)M_(1-x-y)O_(2)(NCM,MMn/Al,x≥0.6)is desirable due to its relatively high voltage and large capacity.However,interfacial side reactions between the NCM and sulfide solid electrolytes lead to undesirable interfacial passivation layers and low ionic conductivity,thereby degrading the electrochemical performance of NCM sulfide all-solid-state batteries.Herein,a time-/cost-effective sulfidation strategy is exploited to sulfidize a Ni-rich NCM_(88) cathode in a mixed gas atmosphere of N_(2) and CS_(2).A new type of cathode(NCM88-S)with an ultrathin(∼2nm)surface layer is obtained,which significantly reduces the interfacial side reactions/resistance and improves the interfacial stability.The resulting NCM_(88)-S/Li_(6)PS_(5)Cl/Li_(4)Ti_(5)O_(12) ASSLIB exhibits superior performance,including a high discharge specific capacity(200.7 mAh g−1)close to that of liquid batteries,excellent cycling performance(a capacity retention of 87%after 500 cycles),and satisfactory rate performance(158.3 mAh g^(−1) at 1C).

关键词： Sulfide solid electrolytes Ni-rich oxide cathode All-solid-state batteries Surface modification interface engineering

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