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Journal of Energy Chemistry 2024年第2期89卷 535-542,I0012页

作者： Ziqi Zhang Sheng Wan Hanbo Wang Jinghan He Ruige Zhang Yuhang Qi Haiyan Lu State Key Laboratory of Inorganic synthesis and Preparative Chemistry College of ChemistryJilin UniversityChangchun 130012JilinChina

Hydrogen is known for its elevated energy density and environmental compatibility and is a promising alternative to fossil *** water electrolysis utilizing renewable energy sources has emerged as a means to obtain high-purity ***,electrocatalysts used in the process are fabricated using conventional wet chemical synthesis methods,such as sol-gel,hydrothermal,or surfactantassisted approaches,which often necessitate intricate pretreatment procedures and are vulnerable to post-treatment ***,this study introduces a streamlined and environmentally conscious one-step potential-cycling approach to generate a highly efficient trimetallic nickel-iron-copper electrocatalyst in situ on nickel *** synthesized material exhibited remarkable performance,requiring a mere 476 mV to drive electrochemical water splitting at 100 mA cm^(-2)current density in alkaline ***,this material was integrated into an anion exchange membrane watersplitting device and achieved an exceptionally high current density of 1 A cm^(-2)at a low cell voltage of2.13 V,outperforming the noble-metal benchmark(2.51 V).Additionally,ex situ characterizations were employed to detect transformations in the active sites during the catalytic process,revealing the structural transformations and providing inspiration for further design of electrocatalysts.

关键词： Electrocatalytic water splitting Hydrogen evolution reaction Oxygen evolution reaction electrochemical synthesis Anion exchange membrane

electrochemical synthesis of catalytic materials for energy catalysis

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Chinese Journal of Catalysis 2022年第4期43卷 1001-1016页

作者： Dunfeng Gao Hefei Li Pengfei Wei Yi Wang Guoxiong Wang Xinhe Bao State Key Laboratory of Catalysis Dalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina University of Chinese Academy of Sciences Beijing 100049China

Electrocatalysis is a process dealing with electrochemical reactions in the interconversion of chemical energy and electrical *** synthesis of catalytically active nanostructures is one of the key challenges that hinder the practical application of many important energy‐related electrocatalytic *** with conventional wet‐chemical,solid‐state and vapor deposition synthesis,electrochemical synthesis is a simple,fast,cost‐effective and precisely controllable method for the preparation of highly efficient catalytic *** this review,we summarize recent progress in the electrochemical synthesis of catalytic materials such as single atoms,spherical and shaped nanoparticles,nanosheets,nanowires,core‐shell nanostructures,layered nanomaterials,dendritic nanostructures,hierarchically porous nanostructures as well as composite *** aspects of electrochemical synthesis and several main electrochemical synthesis methods are ***‐performance correlations between electrochemically synthesized catalysts and their unique electrocatalytic properties are exemplified using selected *** offer the reader with a basic guide to the synthesis of highly efficient catalysts using electrochemical methods,and we propose some research challenges and future opportunities in this field.

关键词： Catalytic material electrochemical synthesis Electrocatalytic reaction Electrodeposition Cathodic corrosion Nanostructure

electrochemical synthesis of alkali-intercalated iron selenide superconductors

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Chinese Physics B 2015年第11期24卷 488-491页

作者：申士杰应天平王刚金士锋张韩林志萍陈小龙 Research & Development Center for Functional Crystals Beijing National Laboratory for Condensed Matter PhysicsInstitute of Physics Chinese Academy of Sciences Collaborative Innovation Center of Quantum Matter

electrochemical method has been used to insert K/Na into FeSe lattice to prepare alkali-intercalated iron selenides at room temperature. Magnetization measurement reveals that KxFe2Se2 and NaxFe2Se2 are superconductive at 31 K and 46 K, respectively. This is the first successful report of obtaining metal-intercalated FeSe-based high-temperature superconductors using electrochemical method. It provides an effective route to synthesize metal-intercalated layered compounds for new superconductor exploration.

关键词： superconductivity iron-based superconductor electrochemical synthesis intercalation

electrochemical synthesis of nanosized iron oxide-alumina system

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Journal of Advanced Ceramics 2016年第1期5卷 70-76页

作者： A.F.DRESVYANNIKOV I.O.GRIGORYEVA L.R.KHAYRULLINA E.V.PETROVA Kazan National Research Technological University(KNRTU) Kazan 420015 Russia

An electrochemical method for the synthesis of complex dispersed oxide system Al2O3–Fe2O3, based on the combined aluminum and iron anodic dissolution in aqueous solution containing chloride ions, has been suggested. The phase composition and morphology of Al2O3–Fe2O3 dispersed precipitate have been investigated by means of X-ray fluorescence, X-ray diffraction (XRD), and scanning electron microscopy (SEM). The influence of the electrolysis mode on the characteristics of the synthesized oxide system has been shown. It is found that the direct current (DC) mode allows us to adjust the phase correlation in the precipitate and to obtain a particle size which is two or more times smaller than the particle size of the samples synthesized by means of the alternating current (AC).

关键词： alumina iron oxide mixed oxide system electrochemical synthesis nanoparticles

electrochemical synthesis, characterization and thermal properties of niobium ethoxide

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Journal of Central South University 2011年第1期18卷 73-77页

作者：蔡亚楠杨声海金胜明杨海平侯国锋夏姣云 School of Minerals Processing and Bioengineering Central South University School of Metallurgical Science and Engineering Central South University

Niobium(V) ethoxide(Nb(OEt)5) was synthesized by electrochemical reaction of ethanol with niobium plate as the sacrificial anode,stainless steel as the cathode and tetraethylammonium chloride(TEAC) as the conductive *** condensates were isolated by vacuum distillation under 5 *** product was characterized by Fourier transform infrared(FT-IR) spectra,Raman spectra and nuclear magnetic resonance(NMR) *** results indicate that the product is niobium *** properties of niobium ethoxide were analysed by TG/*** pressure was calculated from the Langmuir equation and the enthalpy of vaporization was calculated from the vapour pressure-temperature data using the Clausius-Clapeyron *** concentrations of impurity metallic elements in the sample were detected by *** is shown that the purity can reach 99.997%.The volatility and purity of the niobium ethoxide ensure that it could be a good precursor for chemical vapor deposition and atomic layer deposition of niobium oxide layers.

关键词： electrochemical synthesis niobium ethoxide characterization thermal analysis

electrochemical synthesis of Polythiophene in an Ionic Liquid

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Chinese Chemical Letters 2002年第4期13卷 306-307页

作者： JiaHuaSHI XunSUN 等 LaboratoryofLubricationandFunctionalMaterials HenanUniversityKaifeng475001 CenterforMolecularSciences InstituteofChemistryCASBeijing100080

Polythiophene (PTh) was prepared by the direct electrochemical synthesis in an ionic liquid ([BMIM]PF6) containing 0.1 mol/L thiophene by cyclic voltammetry, constant potential and constant current techniques. It is found that smooth and bluegreen PTh films can be obtained at a potential of ca. +1.75 V ( vs. Ag/AgCl ) or a current of ca. 1.5 mA cm-2 in the ionic liquid.

关键词： Polythiophene electrochemical synthesis ionic liquid.

Effects of alkaline cations (M^+= Li^+, Na^+, K^+, Cs^+) on the electrochemical synthesis of polyaniline in nitric acid electrolyte

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Rare Metals 2005年第3期24卷 221-225页

作者： WU Kezhong WANG Xindong MENG Xu Metallurgical and Ecological Engineering School University of Science and Technology Beijing Beijing 100083 China Department of Chemistry Hebei Normal University Shijiazhuang 050016 China

The effects of alkaline cations （M^＋ = Li^＋, Na^＋, K^＋, Cs^＋）on the electrochemical synthesis of polyaniline were carfled out under cyclovoltammetric conditions using nitrates of Li^＋, Na^＋, K^＋, and Cs^＋ as the supporting electrolytes. The results show that the oxidation potentials of aniline in the electrolytes decrease as the protonation extent of aniline decreases from the fast scan, which is caused by the decrease of the ionic radius of alkaline metal ions at the same concentration of alkaline cations. With the scan number increasing, the deposit charge Q as the characteristic growth function also depends on the protonation of aniline, and it increases with the ionic radius of alkaline cations increasing. SEM images show the effect of alkaline cations on the morphology of polyaniline. It is clear that the ionic mobility of alkaline cations is further lower than that of W. Alkaline cations and counter-ions were the species responsible for the enhancement of Pani electrosynthesis. Therefore, this is exactly what SEM images show： a relatively rough fibrous structure in the case of Pani-H^＋ suggesting a sponge-like structure and a highly orderly fiber-like structure in the case of Pani-M^＋.

关键词： electrochemical synthesis cyclic voltammetry polyaniline alkaline cations morphology

Defect engineering of single-walled carbon nanohorns for stable electrochemical synthesis of hydrogen peroxide with high selectivity in neutral electrolytes

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Journal of Energy Chemistry 2021年第3期30卷 118-123页

作者： Yang Liu Jianshuo Zhang Suqiong He Yaqi Cui Lunhui Guan CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002FujianChina University of Chinese Academy of Sciences Beijing 100049China

Hydrogen peroxide(H_(2)O_(2))is one of the most important chemicals,which are commonly used in the paper and pulp industry,water purification and environmental protection[1-3].Most of the commercial available H_(2)O_(... 详细信息

关键词： Hydrogen peroxide electrochemical synthesis Selectivity Oxygen reduction reaction Defects

A facile electrochemical synthesis of caffeic acid derivatives in the presence of acetylacetone or methyl acetoacetate in aqueous medium

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Chinese Chemical Letters 2007年第2期18卷 130-132页

作者： Cheng Chu Zeng[a]&Email:zengcc@*** Li Ming Hu[a] Jia Zeng[a] Ru Gang Zhong[a] [a]College of Life Science & Bioengineering Beijing University of Technology Beijing 100022 China

The anodic oxidation of caffeic acid in the presence of acetylacetone or methyl acetoacetate in aqueous solution has been studied by cyclic voltammetry and controlled-potential electrolysis techniques. The result showed that caffeic acid was oxidized to the corresponding o-benzoquinone, which underwent further Michael-addition with acetylacetone or methyl acetoacetate to produce caffeic acid derivative 3,4-dihydroxy-6-(1-acetylacetone)-yl cinnamic acid 4a or 3,4-dihydroxy-6-(1-acetyl-methylacetate)-yl cinnamic acid 4b.

关键词： Caffeic acid electrochemical synthesis Acetylacetone Methyl acetoacetate

electrochemical synthesis of KSr2Nb5O15 Nanophotocatalyst and Its Degradation of Methyl Orange

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Electrochemical Synthesis of KSr2Nb5O15 Nanophotocatalyst an...