合成气
材料科学
氧化剂
电化学
锌
法拉第效率
化学工程
腐蚀
无机化学
阳极
催化作用
氧化物
电催化剂
冶金
电极
物理化学
化学
有机化学
工程类
作者
Binhao Qin,Qiao Zhang,Yu-Hang Li,Guangxing Yang,Feng Peng
标识
DOI:10.1021/acsami.0c08066
摘要
The electrochemical reduction of CO2 and H2O to syngas, a widely used precursor for chemical synthesis, has attracted increased attention. However, producing syngas over a wide range of CO:H2 ratios is important for its potential application. Herein, a facile method using an anodic oxidizing zinc plate has been developed to obtain lattice-dislocated ZnO, which exhibited higher faradaic efficiencies (above 90%) of syngas than that of ZnO without lattice dislocation. Moreover, the ratio of CO to H2 can be regulated in a wide range from 0.28 to 2.11 by applying different electrolyzing potentials, which is applicable to the synthesis of various chemicals. With density functional theory calculations, we conclude that the lattice dislocation defects in ZnO promote the electroreduction of CO2. In addition, stability and electrochemical noise tests show that lattice-dislocated ZnO can withstand long-term operation due to its effective corrosion resistance.
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