Electrodeposited amorphous Co-P-B ternary catalyst for hydrogen evolution reaction

초록

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 (Cdl) 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 similar to 1, where electron transfer among the three elements was maximized.

키워드