Electrodeposited amorphous Co–P–B ternary catalyst for hydrogen evolution reaction†,Journal of Materials Chemistry A

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Electrodeposited amorphous Co–P–B ternary catalyst for hydrogen evolution reaction†
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2018-02-21 00:00:00 , DOI: 10.1039/c7ta11033b
Junhyeong Kim _{1,

2,

3,

4} , Hyunki Kim _{1,

2,

3,

4} , Soo-Kil Kim _{2,

3,

4,

5} , Sang Hyun Ahn _{1,

2,

3,

4}

Affiliation

The catalytic activity of amorphous Co–P–B catalysts electrodeposited on carbon paper (CP) for the hydrogen evolution reaction (HER) was investigated in aqueous 0.5 M H₂SO₄ electrolyte. Based on the measured double layer capacitance (C_dl) and HER activity, it was found that the HER intrinsic activity exhibited volcano behavior when plotted as a function of the B/P ratio in the Co–P–B catalyst. It was revealed that based on the electronic structures of the elements, electron transfer among the three elements is a significant factor for enhancing the intrinsic activity for the HER. The highest activity was obtained with a B/P ratio of ∼1, where electron transfer among the three elements was maximized.

中文翻译：

电沉积的无定形Co–PB–B三元催化剂，用于析氢反应†

在0.5 MH ₂ SO ₄水溶液中研究了电沉积在碳纸（CP）上的无定形Co–PB–B催化剂对氢释放反应（HER）的催化活性。根据测得的双层电容（C _dl）和HER活性，发现当绘制Co-PB催化剂中B / P比的函数时，HER固有活性表现出火山行为。结果表明，基于元素的电子结构，三个元素之间的电子转移是增强HER固有活性的重要因素。B / P比约为1时可获得最高的活性，其中三个元素之间的电子转移最大。

更新日期：2018-02-21

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