Correct determination of the hydrogen evolution reaction parameters at Ni foam electrode modified by electrodeposited Ni-Sn alloy layer

Zastita materijala Pub Date : 2024-03-15 DOI:10.62638/zasmat1039

Jelena Gojgić, A. Petričević, M. N. Krstajić Pajić, V. Jović

引用次数: 0

Abstract

The example of the procedure for the correct determination of the parameters of hydrogen evolution reaction (HER), the exchange current density (jo) and relaxation time (to) for intermediate (adsorbed hydrogen, Hads) adsorption at modified porous Ni-based electrode are presented in this work. Such a procedure is applicable for the HER at all electrode materials. The value of jo was obtained from the intercept at h = 0 mV from the h vs. log (Rct-1) dependence (h - overpotential), while the value of to was obtained from the intercept at h = 0 mV from the logt vs. h dependence. It was shown that for the correct determination of jo and to, it is necessary to correct applied h for the jRs drop, by recording current density (j) for applied h and correcting it for jRs

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正确测定电沉积镍硒合金层修饰的泡沫镍电极的氢演化反应参数

本研究举例说明了如何正确确定氢进化反应（HER）参数、交换电流密度（Jo）和改性多孔镍基电极吸附中间体（吸附氢，Hads）的弛豫时间（to）。该方法适用于所有电极材料上的 HER。根据 h 与 log (Rct-1) 的依赖关系（h - 过电位），从 h = 0 mV 处的截距得到 jo 值，而根据 logt 与 h 的依赖关系，从 h = 0 mV 处的截距得到 to 值。结果表明，要正确确定 jo 和 to 值，必须根据 jRs 下降情况校正施加的 h，方法是记录施加 h 时的电流密度 (j)，并根据 jRs 对其进行校正。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Zastita materijala Materials Science-General Materials Science

CiteScore

0.80

自引率

0.00%

发文量