Journal
ENERGY & ENVIRONMENTAL SCIENCE
Volume 11, Issue 7, Pages 1736-1741Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ee00611c
Keywords
-
Funding
- National Natural Science Foundation of China [51532001, 21471013]
- Shenzhen Peacock Plan Program [KQTD2016053015544057]
Ask authors/readers for more resources
Cost efficient and long-term stable catalysts are in great demand for the oxygen evolution reaction (OER), a key process involved in water splitting cells and metal-air batteries. Here, we demonstrate that the ultrathin amorphous cobalt-vanadium hydr(oxy)oxide we synthesized is a highly promising electrocatalytic material for the OER with a low overpotential of 0.250 V (even lower down to 0.215 V when supported on Au foam) at 10 mA cm(-2) and a long stable operation time (170 h) in alkaline media. In combination with in situ X-ray absorption spectral characterization and first-principles simulations, we reveal that the ultrathin, amorphous and alloyed structural characteristics have enabled its facile transformation to the desirable active phase, leading to a dramatically enhanced catalytic activity. Our finding highlights the remarkable advantages of the two-dimensional amorphous material and sheds new light on the design of high-performance electrocatalysts.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available