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Chemical and morphological transformation of MOF-derived bimetallic phosphide for efficient oxygen evolution

Chemical and morphological transformation of MOF-derived bimetallic phosphide for efficient oxygen evolution

Authors :
Lulu Chai
Yue Hu
Junyang Ding
Jinjie Qian
Shaoming Huang
Xian Wang
Li Zhong
Ting-Ting Li
Yujing Du
Source :
Nano Energy. 62:745-753
Publication Year :
2019
Publisher :
Elsevier BV, 2019.

Abstract

Environmentally friendly and efficient transition metal phosphide (TMP) electrocatalysts for oxygen evolution reaction (OER) are developed to meet the growing demand for clean energy. Here we report a novel and environmentally friendly strategy for the preparation of MOF-derived bimetallic phosphide embedded in the carbonaceous matrix (FeNiP/C). With 3-dimensional hollow barrel shape and high specific surface, FeNiP/C-900 performs excellent OER catalytic performance, reaching a current density of 10 mA cm−2 at an overpotential of 229 mV with a low Tafel slope of 74.5 mV dec−1. Meantime, we explore the thermal conversion mechanism of P-containing MOF and the compositional changes during heat treatment.

Details

ISSN :
22112855
Volume :
62
Database :
OpenAIRE
Journal :
Nano Energy
Accession number :
edsair.doi...........7ff2debf718b5b6df6881e9f01e3f227
Full Text :
https://doi.org/10.1016/j.nanoen.2019.06.002