TY - JOUR
T1 - Prussian blue analogue derived cobalt–nickel phosphide/carbon nanotube composite as electrocatalyst for efficient and stable hydrogen evolution reaction in wide-pH environment
AU - Ding, Zibiao
AU - Yu, Huangze
AU - Liu, Xinjuan
AU - He, Nannan
AU - Chen, Xiaohong
AU - Li, Haibo
AU - Wang, Miao
AU - Yamauchi, Yusuke
AU - Xu, Xingtao
AU - Amin, Mohammed A.
AU - Lu, Ting
AU - Pan, Likun
N1 - Publisher Copyright:
© 2022 Elsevier Inc.
PY - 2022/6/15
Y1 - 2022/6/15
N2 - Transition metal phosphides, especially bimetallic phosphides, are promising noble-metal-free electrocatalysts for hydrogen evolution reaction (HER). However, their inferior charge transfer ability constrains further performance improvement. In this work, a facile strategy is reported to fabricate Co2P/Ni2P/carbon nanotube (CNT) composite from a precursor Co-Ni Prussian blue analogue. The combination of Co2P/Ni2P and CNT endows Co2P/Ni2P/CNT with improved electrical conductivity and a richer electrochemically active surface area. As a result, the Co2P/Ni2P/CNT composite exhibits desirable HER activities across a wide pH range, delivering a benchmark current density of 10 mA cm−2 at overpotentials as low as 151 and 202 mV in 0.5 M H2SO4 and 1 M KOH electrolytes, respectively, as well as remarkable electrocatalytic stabilities over 48 h in both electrolytes. This strategy enables the design of high-performance electrocatalysts for efficient and stable hydrogen generation.
AB - Transition metal phosphides, especially bimetallic phosphides, are promising noble-metal-free electrocatalysts for hydrogen evolution reaction (HER). However, their inferior charge transfer ability constrains further performance improvement. In this work, a facile strategy is reported to fabricate Co2P/Ni2P/carbon nanotube (CNT) composite from a precursor Co-Ni Prussian blue analogue. The combination of Co2P/Ni2P and CNT endows Co2P/Ni2P/CNT with improved electrical conductivity and a richer electrochemically active surface area. As a result, the Co2P/Ni2P/CNT composite exhibits desirable HER activities across a wide pH range, delivering a benchmark current density of 10 mA cm−2 at overpotentials as low as 151 and 202 mV in 0.5 M H2SO4 and 1 M KOH electrolytes, respectively, as well as remarkable electrocatalytic stabilities over 48 h in both electrolytes. This strategy enables the design of high-performance electrocatalysts for efficient and stable hydrogen generation.
KW - Carbon nanotubes
KW - Electrocatalysts
KW - Hydrogen evolution reaction
KW - Prussian blue analogues
KW - Transition metal phosphides
UR - https://www.scopus.com/pages/publications/85124900591
U2 - 10.1016/j.jcis.2022.02.039
DO - 10.1016/j.jcis.2022.02.039
M3 - 文章
C2 - 35203034
AN - SCOPUS:85124900591
SN - 0021-9797
VL - 616
SP - 210
EP - 220
JO - Journal of Colloid and Interface Science
JF - Journal of Colloid and Interface Science
ER -