Surface oxidation protection strategy of CoS₂ by V₂O₅ for electrocatalytic hydrogen evolution reaction

Abstract

Transition metal sulfides (TMSs) are promising electrocatalysts for hydrogen evolution reaction (HER), while TMSs usually suffer from inevitable surface oxidation in air, and the impact of the surface oxidation on...

Sulfur Vacancy-Engineered Co3S4/MoS2-Interfaced Nanosheet Array for Enhanced Alkaline Overall Water Splitting

“…The HER performance of Pt/C is about 57 mV at 10 mA cm −2 , which is consistent with previous reports. 45,46 S v -Co 3 S 4 /MoS 2 exhibits the lowest overpotential of 156 mV at 10 mA cm −2 among non-noble metal catalysts, surpassing Co 3 S 4 /MoS 2 (181 mV), Co 3 S 4 (218 mV), and MoS 2 (216 mV). The improved HER performance compared with S v -MoS 2 (Figure S7a) further confirms the effect of the Co 3 S 4 /MoS 2 heterostructure in improving the catalytic property.…”

Influence of Mo concentration on the structural and electrochemical properties of double-doped Mo–Co–Ni3S2/NF composites

“…7 Platinum group noble metals are the most popular HER catalysts, but their high cost and limited availability inhibit widespread usage. [8][9][10][11] Hence, it is essential to unearth non-noble metal HER catalysts that are highperforming and exist in abundance on our planet, such as phosphides, 12 nitrides, 13 and sulfides 14,15 derived from transition metals.…”

Recent advances of transition‐metal metaphosphates for efficient electrocatalytic water splitting

“…Noble metals and their oxides are generally needed to promote the OER due to their high activity and stability, but the high cost and scarcity limit their commercial applications. [12][13][14][15][16] Thus, there is an urgent need to explore readily available and sustainable OER electrocatalysts with high efficiency, such as transition-metal (TM) borides, [17][18][19] nitrides, 20,21 sulfides, [22][23][24] and phosphides, [25][26][27] as alternatives to noble metal-based electrocatalysts for the development of advanced energy conversion and storage devices.…”