Abstract This paper reports a simple and facile method to prepare surface functionalized commercial carbon cloth via a plasma treatment and its application in electrocatalytic oxygen evolution reaction (OER). It is observed that abundant oxygen containing functional groups formed on the surface of the treated carbon cloth. The functionalized carbon cloth (FCC) exhibits a remarkable of OER activity. Specifically, it can drive a current density of 10 mA cm−2 at a fairly low overpotential of 360 mV and a correspondent small Tafel slope of 66.7 mV dec−1. More unexpectedly, it was found that the OER activity of FCC follows the non-concerted proton-coupled electron transfer mechanism. A possible explanation was proposed that the surface carboxyl groups improve the proton-transfer kinetics, accelerating the deprotonation from OOH to OO* during the OER process.

中文翻译：

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去质子化促进等离子体功能化碳布的高析氧活性

摘要 本文报道了一种简单易行的等离子体处理制备表面功能化商业碳布的方法及其在电催化析氧反应（OER）中的应用。观察到在处理过的碳布表面上形成了大量的含氧官能团。功能化碳布（FCC）表现出显着的 OER 活性。具体来说，它可以在 360 mV 的相当低的过电位和 66.7 mV dec-1 的小塔菲尔斜率下驱动 10 mA cm-2 的电流密度。更出乎意料的是，发现 FCC 的 OER 活性遵循非协调的质子耦合电子转移机制。提出了一种可能的解释，即表面羧基改善了质子转移动力学，