Phosphorus vacancies improve the hydrogen evolution of MoP electrocatalysts

Autor: Hui Ma, Wensi Yan, Yanlong Yu, LiHua Deng, Zhe Hong, Li Song, Lei Li
Rok vydání: 2022
Předmět:
Zdroj: Nanoscale.
ISSN: 2040-3372
Popis: Although molybdenum phosphide (MoP) has attracted increasing attention as an electrocatalyst in the hydrogen evolution reaction (HER), it is still worth exploring an effective approach to further improve the HER activities of MoP. To date, the generation and effect of P vacancies (Pv) on MoP have been rarely investigated for the HER in both alkaline and acidic media and remain unclear. Here, MoP rich in P vacancies (MoP-Pv) was prepared by hydrogen reduction to improve the HER catalytic performances. As a result, the overpotentials of MoP-Pv were 70 mV and 62 mV lower than those of pristine MoP in 1 M KOH and 0.5 M H
Databáze: OpenAIRE