过电位
电催化剂
析氧
电解水
催化作用
电解
分解水
化学
氢燃料
制氢
氢经济
化学工程
氢
纳米技术
电化学
材料科学
有机化学
物理化学
电极
光催化
工程类
电解质
作者
Zhixin Li,Yan Zhang,Qianqian Yang,Jindong Wu,Zhi Gang Ren,Fengzhan Si,Jin Zhao,Jiean Chen
出处
期刊:iScience
[Elsevier]
日期:2023-10-01
卷期号:26 (10): 107994-107994
被引量:1
标识
DOI:10.1016/j.isci.2023.107994
摘要
Hydrogen is one of the most promising future energy sources due to its highly efficient energy storage and carbon-free features. However, the energy input required for a hydrogen production protocol is an essential factor affecting its widespread adoption. Water electrolysis for hydrogen production currently serves a vital role in the industrial field, but the high overpotential of the oxygen evolution reaction (OER) dramatically impedes its practical application. The formaldehyde oxidation reaction (FOR) has emerged as a more thermodynamically favorable alternative, and the innovation of compatible electrodes may steer the direction of technological evolution. We have designed Au-Vo-NiO/CC as a catalyst that triggers the electrocatalytic oxidation of formaldehyde, efficiently producing H2 at the ultra-low potential of 0.47 V (vs. RHE) and maintaining long-term stability. Integrated with the cathodic hydrogen evolution reaction (HER), this bipolar H2 production protocol achieves a nearly 100% Faraday efficiency (FE).
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