各位老师专家，审稿人问了我这个问题，可以帮我看看这样回复可以吗？谢谢3. The HER mechanism has also not been discussed properly. The authors must propose the mechanism.
Reply: According to the referee’s suggestion, we have added more discussions of HER mechanism in the main text (Page 10, Line 4-10). In general, Tafel analysis allows the distinction of possible mechanisms for HER. The Tafel slope of NiCoP is 89.7 mV dec?1, meaning that HER follows a Volmer-Heyrovsky reaction mechanism (Energy Environ. Sci. 2011,4, 3878-3888; Chem. Eng. J. 2022, 432, 134275).
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