Journal
ADVANCED MATERIALS
Volume 29, Issue 41, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201703870
Keywords
diselenides; electrocatalysis; nanocages; oxygen evolution reaction; Prussian-blue analog
Categories
Funding
- National Research Foundation (NRF) of Singapore [NRF-NRFI2016-04]
Ask authors/readers for more resources
Exploring effective electrocatalysts is a crucial requirement for boosting the efficiency of water splitting to obtain clean fuels. Here, a self-templating strategy is reported to synthesize Ni-Fe mixed diselenide cubic nanocages for the electrocatalytic oxygen evolution reaction (OER). The diselenide nanocages are derived from corresponding Prussian-blue analog nanocages, which are first obtained by treating the nanocube precursor with a site-selective ammonia etchant. The resulting Ni-Fe mixed diselenide nanocages perform as a superior OER electrocatalyst, which affords a current density of 10 mA cm(-2) at a small overpotential of 240 mV; a high current density, mass activity, and turnover frequency of 100 mA cm(-2), 1000 A g(-1), and 0.58 s(-1), respectively, at the overpotential of 270 mV; a Tafel slope as small as 24 mV dec(-1); and excellent stability in alkaline medium.
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