Carbon oxidation reactions could misguide the evaluation of carbon black-based oxygen- evolution electrocatalysts
Carbon oxidation reactions could misguide the evaluation of carbon black-based oxygen- evolution electrocatalysts
复制标题
碳氧化反应可能会误导炭黑基析氧电催化剂的评估
DOI：
10.1039/c7cc04611a
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发表时间：
2017
影响因子：
4.9
通讯作者：
Chen Shengli
中科院分区：
文献类型：
--
作者：
Wang Wang;Luo Jin;Chen Shengli
已有多种碳基材料被报道作为放氧反应的电催化剂。然而，在大多数报告中，OER过程中的碳氧化很少被考虑，甚至被忽视。在本文中，我们以炭黑为模型材料，提出了一种估算碳氧化反应(CORS)对OER测试中测量电流的贡献的方法。结果表明，CORS会显著高估炭黑基电催化剂的OER活性。
A variety of carbon-based materials have been reported as electrocatalysts towards the oxygen evolution reaction. However, carbon oxidation during the OER was rarely considered or even neglected in most of the reports. Herein, using carbon black as a model material, we develop a method to estimate the contribution of carbon oxidation reactions (CORs) to the measured current during the OER test. It is shown that the CORs could result in significant overestimation of the OER activity of carbon black-based electrocatalysts.