Cu<sub>1-x</sub>Co<sub>x</sub>O composite oxide for oxygen evolution reaction prepared by magnetron sputtering

ZHANG Qian; WEI Zidong; LIU Can; MENG Di; QI Xueqiang; CHEN Siguo; WANG Yaoqiong; LI Li

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Cu_1-xCo_xO composite oxide for oxygen evolution reaction prepared by magnetron sputtering

更新时间：2025-12-10

- Cu_1-xCo_xO composite oxide for oxygen evolution reaction prepared by magnetron sputtering
- CIESC Journal Issue 7, Pages: 1803-1808(2010)
- 作者机构：
  
  1. 重庆大学输配电装备及系统安全与新技术国家重点实验室,化学化工学院
  2. 重庆大学材料科学与工程学院
- 作者简介：
- 基金信息：
- DOI：
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- Online First：05 July 2010，
  
  Published：05 July 2010
- 稿件说明：
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ZHANG Qian, WEI Zidong, LIU Can, et al. Cu_1-xCo_xO composite oxide for oxygen evolution reaction prepared by magnetron sputtering[J]. CIESC Journal, 2010, (7): 1803-1808.
DOI：

ZHANG Qian, WEI Zidong, LIU Can, et al. Cu_1-xCo_xO composite oxide for oxygen evolution reaction prepared by magnetron sputtering[J]. CIESC Journal, 2010, (7): 1803-1808. DOI：

摘要

采用直流反应磁控溅射法制备了Cu1-xCoxO（0.02≤x≤0.14）复合氧化物电极。利用XRD、EDS和SEM分析技术对沉积氧化物的晶体结构、化学组成及表面形貌进行了表征，并利用循环伏安、线性扫描及电化学交流阻抗对沉积氧化物电极的电化学性能进行了测试。XRD分析结果显示复合氧化物Cu1-xCoxO具有CuO单斜晶体结构

不存在氧化钴独立相。电化学测试结果表明Cu1-xCoxO复合氧化物电极对水氧化反应的催化活性远高于CuO和Co3O4电极，更好的催化活性、较低的电阻和高的表面粗糙度是Cu1-xCoxO复合氧化物电极催化活性提高的主要原因。生成最优Cu1-xCoxO（0.02≤x≤0.14）复合氧化物的溅射功率为45 W（Co）、100 W（Cu）。

Abstract

The Cu1-xCoxO(0.02≤x≤0.14) composite oxide electrodes are prepared by reactive DC magnetron sputtering. Techniques of X-ray diffraction (XRD)

energy-dispersive spectrometry (EDS) and scanning electron microscope (SEM) are adopted to confirm the crystal structure

chemical composition and surface morphology of deposits. The electrochemical characteristics of deposits are further explored by cyclic voltammetry (CV)

linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS).The XRD spectrum analysis shows that the deposits have a CuO monoclinic crystal structure without appearance of cobalt oxide isolated phase. Based on the electrochemical study

the Cu1-xCoxO electrode exhibits better catalytic activity than CuO and Co3O4 electrodes for oxygen evolution reaction (OER).The increase in OER activity of the Cu1-xCoxO electrode is attributed to its better catalysis

enlarged surface roughness and decreased resistance according to the results of electrochemical analysis together with SEM. Moreover

the power of 45 W (Co)-100 W (Cu) is chosen for the best conditions to prepare the deposits.

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Cu1-xCoxO composite oxide for oxygen evolution reaction prepared by magnetron sputtering

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摘要

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Cu_1-xCo_xO composite oxide for oxygen evolution reaction prepared by magnetron sputtering