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在高效电催化水氧化结构中集成的短距离有序单原子

Jieqiong Shan^1,2, Chao Ye^1,2, Shuangming Chen³

¹School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide SA5005, Australia.

Journal of the American Chemical Society

|March 25, 2021

概括

这项研究将的单个原子整合到氧化物中, 这种混合材料显著提高了氧化反应的电催化活性和耐腐蚀性.

科学领域:

材料科学
催化剂
电化学

背景情况:

贵金属具有独特的催化性能,但受到几何结构选择的限制.
将贵金属整合到过渡金属氧化物中可以创建新的混合结构.

研究的目的:

为了克服贵金属的几何结构限制.
通过将单个原子整合到氧化物中来创建一个新的混合结构.

主要方法:

将单个原子融入氧化物中的阴离子位.
描述由此产生的Ir0.06Co2.94O4催化剂结构和特性.

主要成果:

在酸性条件下,Ir0.06Co2.94O4催化剂的电催化活性增加了两级.
由于强烈的氧化物相互作用,催化剂在酸性和氧化环境中显著提高了耐腐蚀性.

结论:

这项工作克服了贵金属的"紧密包装"限制.
开发的混合结构为设计各种应用所需拓的催化剂提供了有前途的途径.

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