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One dimensional nickel phosphide polymorphic heterostructure as carbon-free functional support loading single-atom iridium for promoted electrocatalytic water oxidation

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Journal of Energy Chemistry 2023年第4期79卷 410-417页

作者： Rashid Mehmood Guifa Long Wenjun Fan Mingrun Li Lifang Liu Fuxiang Zhang StateKey Laboratory of Catalysis iChEMDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian National Laboratory for Clean EnergyDalian 116023LiaoningChina Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China GuangxiKey Laboratory of Chemistry and Engineering of Forest Products School of Chemistry and Chemical EngineeringGuangxi Minzu UniversityNanning 530008GuangxiChina

Although conducting materials such as carbon nanotube and carbon fiber paper(CFP)have been extensively employed as support of electrocatalytic active sites,most of them are of poor catalytic functionality by themselves and undesirable stability during strong acid/alkaline environments or oxidation process.Here we report a novel one-dimensional(1D)nickel phosphide polymorphic heterostructure(denoted as NPPH)to work as one effective carbon-free functional support for loading of single-atom Ir water oxidation electrocatalyst.Specifically,the NPPH composed of both Ni12P5and Ni2P phases is not only active for robust alkaline water oxidation but also is of good stability and hydrophilicity for favorable loading of single-atom dispersed iridium.The NPPH supported single-atom Ir electrocatalyst(Ir/NPPH)is found to exhibit remarkably superior water oxidation activity with respect to the NPPH itself or CFP supported single-atom Ir catalyst(Ir/CFP),demonstrating the synergetic promotion effect between NPPH and single-atom Ir catalyst.Furthermore,the NPPH supported single-atom Ir catalyst can bear alkaline water oxidation for over 120 h at current density of 50 mA cm^(-2).The NPPH developed here is expected as functional support to composite with other water oxidation catalysts,as may be an alternative strategy of developing highly efficient carbon-free electrocatalysts.

关键词： Oxygen evolution reaction Single atom catalyst nickel phosphide Heterostructure One-dimensional

Study on the mechanism of hydrodesulfurization of tetrahydrothiophene catalyzed by nickel phosphide

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Petroleum Science 2022年第3期19卷 1390-1400页

作者： Chuan-Tao Zhu Li-Qiang Zhang Mei-Ling Zhou Xin-Wei Wang Zheng-Da Yang Ri-Yi Lin De-Wei Yang College of New Energy China University of PetroleumQingdao266580China

Hydrodesulfurization(HDS)reaction can significantly reduce the viscosity and sulfur content of heavy oil,while the HDS reaction mechanism of tetrahydrothiophene as the main sulfide in heavy oil is still unclear.The HDS experiment of tetrahydrothiophene catalyzed by nickel phosphide(Ni_(2)P)is carried out at 200-300°C.The results indicate that the H_(2)S production under the catalysis of Ni_(2)P increases obviously within 200-250°C.The main gas products of HDS reaction are butane,butene and H_(2)S.Meanwhile,the mechanism of tetrahydrothiophene catalyzed by Ni_(2)P is analyzed based on Density Functional Theory(DFT).It is revealed that the adsorption model is most stable when tetrahydrothiophene is vertically adsorbed on the V-Ni-Hcp1 site of Ni_(2)P(001).The C-S bond is elongated and the C-C bond is shortened after adsorption.Hydrogenation(HYD)is the most possible reaction route of tetrahydrothiophene on Ni_(2)P(001)surface.There are two routes with the lowest activation energy,which are C_(4)H_(8)S→C_(4)H_(8)SH^(*)→C_(4)H_(9)SH^(*)→C_(4)H_(10)+H_(2)S and C_(4)H_(8)S→C_(4)H9S^(*)→C_(4)H_(9)^(*)+SH^(*)→C_(4)H_(10)+H_(2)S.Butane and H_(2)S are produced in the reaction,corresponding to the experimental results.This study provides a basis for understanding of the HDS mechanism of tetrahydrothiophene catalyzed by Ni_(2)P.

关键词： Tetrahydrothiophene nickel phosphide Hydrodesulfurization Hydrogen sulfide DFT

nickel phosphide Nanorod Arrays Vertically Grown on Ni Foam as High-Efficiency Electrocatalyst for the Hydrogen Evolution Reaction

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Chinese Journal of Chemistry 2017年第4期35卷 405-409页

作者： Xiandong Dou Weijun Liu Qing Liu Zhiqiang Niu School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 China

An electrocatalyst of nickel phosphide （Ni2P） nanorod arrays vertically grown on Ni foam composite （NNFC） was prepared successfully using NaHzPO2 as phosphorus source by means of a facile method of in situ phospho- rization of Ni foam. The as-prepared NNFC exhibits excellent HER performance with an onset overpotential of 100 mV, a small Tafel slope of only 55 mV/dec, and a low overpotential involving 200 mV at a current density of 10 mA·cm^-2. Furthermore, the electrocatalyst was also demonstrated to possess high stability with a neglectable de- crease in activity even after durability test for 25 h.

关键词： electrocatalyst hydrogen evolution reaction Ni foam nickel phosphide

Preparation of Alumina Supported nickel phosphide Catalysts from the Thermal Treatment of Boehmite and nickel Hypophosphite

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Preparation of Alumina Supported Nickel Phosphide Catalysts ...

Interface engineering of NiSe_(2) nanowrinkles/Ni_(5)P_(4)nanorods for boosting urea oxidation reaction at large current densities

第九届全国工业催化技术及应用年会

作者： LI Jingfeng CHAI Yongming LIU Yunqi LIU Chenguang State Key Laboratory of Heavy Oil Processing China University of Petroleum(East China) Key Laboratory of Catalysis China National Petroleum Corp.(CNPC)China University of Petroleum(East China)

This paper presents a simple technique for preparation of alumina supported nickel phosphide by the thermal treatment of boehmite and nickel hypophosphite in a flowing N at relatively low temperaure (473 K).The resulting catalysts were characterized by X-ray diffraction(XRD) and transmission electron microscopy(TEM),indicating that NiP nanoparticles may be well-dispersed in the alumina supported NiP catalysts with modest NiP loading.Therefore,this method provides a new effective route for the preparation of alumina supported NiP catalysts.

关键词： nickel phosphide nickel hypophosphite Alumina

来源： cnki会议评论

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Nano Research 2023年第7期16卷 8853-8862页

作者： Jinyang Li Xiujuan Xu Xianbiao Hou Shucong Zhang Ge Su Weiqian Tian Huanlei Wang Minghua Huang Arafat Toghan School of Materials Science and Engineering Ocean University of ChinaQingdao 266100China Chemistry Department College of ScienceImam Mohammad Ibn Saud Islamic University(IMSIU)Riyadh 11623Saudi Arabia Chemistry Department Faculty of ScienceSouth Valley UniversityQena 83523Egypt

Deliberate modulation of the electronic structure via interface engineering is one of promising perspectives to build advanced catalysts for urea oxidation reaction(UOR)at high current densities.However,it still remains some challenges originating from the intrinsically sluggish UOR dynamics and the high energy barrier for urea adsorption.In response,we report the coupled NiSe_(2)nanowrinkles with Ni_(5)P_(4)nanorods heterogeneous structure onto Ni foam(denoted as NiSe_(2)@Ni_(5)P_(4)/NF)through successive phosphorization and selenization strategy,in which the produced closely contacted interface could provide high-flux electron transfer pathways.Theoretical findings decipher that the fast charge transfer takes place at the interfacial region from Ni_(5)P_(4)to NiSe_(2),which is conducive to optimizing adsorption energy of urea molecules.As expected,the well-designed NiSe_(2)@Ni_(5)P_(4)/NF only requires the low potential of 1.402 V at the current density of 500 mA·cm^(-2).More importantly,a small Tafel slope of 27.6 mV·dec^(-1),a high turnover frequency(TOF)value of 1.037 s^(-1)as well as the prolonged stability of 950 h at the current density of 100 mA·cm^(-2)are also achieved.This study enriches the understanding on the electronic structure modulation via interface engineering and offers bright prospect to design advanced UOR catalysts.

关键词： urea oxidation reaction(UOR) interface engineering nickel phosphide nickel selenide large current densities

Au/Ni12P5 core/shell single-crystal nanoparticles as oxygen evolution reaction catalyst

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Nano Research 2017年第9期10卷 3103-3112页

作者： Yingying Xu Sibin Duan Haoyi Li Ming Yang Shijie Wang Xun Wang Rongming Wang Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science School of Mathematics and Physics University of Science and Technology Beijing Beijing 100083 China Department of Chemistry Tsinghua University Beijing 100084 China Institute of Materials Research and Engineering A＊STAR 2 Fusionopolis Way Singapore 138634 Singapore

We have demonstrated the improved performance of oxygen evolution reactions (OER) using Au/nickel phosphide (Ni12P5) core/shell nanoparticles (NPs) under basic conditions. NPs with a Ni12P5 shell and a Au core, both of which have well-defined crystal structures, have been prepared using solution-based synthetic routes. Compared with pure Ni12P5 NPs and Au-Ni12P5 oligomer-like NPs, the core/shell crystalline structure with Au shows an improved OER activity. It affords a current density of 10 mA/cm2 at a small overpotential of 0.34 V, in 1 M KOH aqueous solution at room temperature. This enhanced OER activity may relate to the strong structural and effective electronic coupling between the single-crystal core and the shell.

关键词： oxygen evolution reaction nickel phosphide core/shell nanoparticles interfacial coupling

Integrated Ni2P nanosheet arrays on three-dimensional Ni foam for highly efficient water reduction and oxidation

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Journal of Energy Chemistry 2017年第6期26卷 1196-1202页

作者： Jintao Ren Zhongpan Hu Chong Chen Yuping Liu Zhongyong Yuan National Institute for Advanced Materials School of Materials Science and EngineeringNankai UniversityTianjin 300353China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)Nankai UniversityTianjin 300071China

The large-scale synthesis of efficient nonprecious bifunctional electrocatalysts for overall water splitting is a great challenge for future renewable energy conversion systems. Herein, Ni2P nanosheet arrays directly grown on three-dimensional(3 D) Ni foam(Ni P/NF) are fabricated by hydrothermal treatment of metallic Ni foam with H2O2solution and subsequent phosphidation with NaH2PO2. The Ni P/NF as electrocatalyst exhibits superior activities for both hydrogen evolution reaction(HER) and oxygen evolution reaction(OER). Most importantly, employing both as the cathode and anode for an alkaline water electrolyzer, Ni P/NF only requires a cell voltage of 1.63 V to reach a current density of 10 mV cm-2, together with stronger durability. Preliminary catalytic information suggests that the tailored 3 D superstructure and integrated electrode configurations afford improved active sties and enhanced electron/mass transfer,responding for the outstanding activity and stability.

关键词： nickel phosphide Electrocatalyst Hydrogen evolution Oxygen evolution Water splitting

Integrated Ni-P-S nanosheets array as superior electrocatalysts for hydrogen generation

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Green Energy & Environment 2017年第2期2卷 112-118页

作者： Haoxuan Zhang Haibo Jiang Yanjie Hu Hao Jiang Chunzhong Li Key Laboratory for Ultrafine Materials of Ministry of Education & School of Materials Science and Engineering East China University of Science and Technology

Searching for efficient and robust non-noble electrocatalysts for hydrogen generation is extremely desirable for future green energy systems.Here, we present the synthesis of integrated Ni-P-S nanosheets array including Ni_2P and NiS on nickel foam by a simple simultaneous phosphorization and sulfurization strategy. The resultant sample with optimal composition exhibits superior electrocatalytic performance for hydrogen evolution reaction(HER) in a wide pH range. In alkaline media, it can generate current densities of 10, 20 and 100 mA cm^(-2) at low overpotentials of only-101.9,-142.0 and-207.8 mV with robust durability. It still exhibits high electrocatalytic activities even in acid or neutral media. Such superior electrocatalytic performances can be mainly attributed to the synergistic enhancement of the hybrid Ni-P-S nanosheets array with integration microstructure. The kind of catalyst gives a new insight on achieving efficient and robust hydrogen generation.

关键词： Nanosheets array nickel phosphide nickel sulfide Overpotential Hydrogen generation

Ni2P Nanosheets:A High Catalytic Activity Platform for Electrochemical Detection of Acetaminophen

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Chinese Journal of Chemistry 2021年第7期39卷 1849-1854页

作者： Ming Wei Wenbo Lu Guoqin Liu Yimin Jiang Xuebo Liu Liwei Bai Xiaowei Cao Jianfeng Jia Haishun Wu Key Laboratory of Magnetic Molecules and Magnetic Information Materials(Ministry of Education) School of Chemistry and Material ScienceShanxi Normal UniversityLinfenShanxi041004 China Kangda College of Nanjing Medical University LianyungangJiangsu222000 China Institute of Translational Medicine Medical CollegeYangzhou UniversityYangzhouJiangsu225001 China

Main observation and conclusion Accurate determination of acetaminophen concentration is essential for studying the metabolic status of acetaminophen in clinical practice.In this study,nickel phosphide was used for el... 详细信息

关键词： Acetaminophen nickel phosphide Electrochemistry Sensors Nanotechnology