材料科学
析氧
塔菲尔方程
纳米片
分解水
氢氧化物
氮化物
化学工程
无机化学
纳米管
纳米技术
碳纳米管
催化作用
电化学
电极
光催化
物理化学
化学
工程类
生物化学
图层(电子)
作者
Siwen Li,Yongcheng Wang,Sijia Peng,Lijuan Zhang,Abdullah M. Al‐Enizi,Hui Zhang,Xuhui Sun,Gengfeng Zheng
标识
DOI:10.1002/aenm.201501661
摘要
One promising approach to hydrogen energy utilization from full water splitting relies on the successful development of earth‐abundant, efficient, and stable electrocatalysts for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). Here, homologous Co–Ni‐based nanotube/nanosheet structures with tunable Co/Ni ratios, including hydroxides and nitrides, are grown on conductive substrates by a cation‐exchanging method to grow hydroxides, followed by anion exchanging to obtain corresponding nitrides. These hydroxide OER catalysts and nitride HER catalysts exhibit low overpotentials, small Tafel slopes, and high current densities, which are attributed to their large electrochemically reactive surface, 1D morphologies for charge conduction, and octahedral coordination states of metal ions for efficient catalytic activities. The homologous Co–Ni‐based nanotube hydroxides and nitrides suggest promising electrocatalysts for full water splitting with high efficiency, good stability, convenient fabrication, and low cost.
科研通智能强力驱动
Strongly Powered by AbleSci AI