首页|Electrochemical synthesis of trimetallic nickel-iron-copper nanoparticles via potential-cycling for high current density anion exchange membrane water-splitting applications
Electrochemical synthesis of trimetallic nickel-iron-copper nanoparticles via potential-cycling for high current density anion exchange membrane water-splitting applications
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
Hydrogen is known for its elevated energy density and environmental compatibility and is a promising alternative to fossil fuels.Alkaline water electrolysis utilizing renewable energy sources has emerged as a means to obtain high-purity hydrogen.Nevertheless,electrocatalysts used in the process are fabri-cated using conventional wet chemical synthesis methods,such as sol-gel,hydrothermal,or surfactant-assisted approaches,which often necessitate intricate pretreatment procedures and are vulnerable to post-treatment contamination.Therefore,this study introduces a streamlined and environmentally con-scious one-step potential-cycling approach to generate a highly efficient trimetallic nickel-iron-copper electrocatalyst in situ on nickel foam.The synthesized material exhibited remarkable performance,requiring a mere 476 mV to drive electrochemical water splitting at 100 mA cm-2 current density in alka-line solution.Furthermore,this material was integrated into an anion exchange membrane water-splitting device and achieved an exceptionally high current density of 1 A cm-2 at a low cell voltage of 2.13 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 struc-tural transformations and providing inspiration for further design of electrocatalysts.
Electrocatalytic water splittingHydrogen evolution reactionOxygen evolution reactionElectrochemical synthesisAnion exchange membrane
Ziqi Zhang、Sheng Wan、Hanbo Wang、Jinghan He、Ruige Zhang、Yuhang Qi、Haiyan Lu
展开 >
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,College of Chemistry,Jilin University,Changchun 130012,Jilin,China
NETL
NSTL
万方数据
