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[求助]
第一次投稿求助。这样的审稿意见怎么回复？是一定要补实验么？
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第一个审稿意见提了格式上的小问题，建议接收。这是第二个审稿意见，求帮助，我是不是要换条件重做整个实验，如果证明高电位下，电流不是电催化导致的，行不行？ In this manuscript, the authors investigate the role of Co-Pi as cocatalyst in improving the PEC performance of hematite. The obtained experimental results indicated the roles of Co-Pi on hematite are potential-dependent. Coated with Co-Pi, the catalytic activity was improved at low potentials. Instead, surface recombination was inhibited by Co-Pi at high applied potentials. I agree with the authors that there is no solid evidence that Co-Pi actually participates in water oxidation reaction, it is important to clarify the function of this easy prepared cocatalyst. However, the PEC performance obtained by the authors are extremely low, with an onset at 1 V vs RHE. As a result, applied potentials higher than 1.23 V vs RHE were used for their impedance experiments and light on-off experiments. I wonder at such high potentials whether it is a light-induced or electricity-induced water oxidation. I suggest the authors to optimize the conditions for water oxidation in order to improve the related PEC performance, i.e. reducing the applied potential needed for oxygen evolution. One possible approach is that running the PEC reaction under alkaline conditions. |
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