Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 124, Issue 5, Pages 2756-2761Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.9b09796
Keywords
-
Funding
- China Ministry of Science and Technology [2017YFA0208300, 2017YFA0402800]
- National Natural Science Foundation of China [21471143, 21533007, 11621063, 21688102, 21703222]
- Fundamental Research Funds for the Central Universities [KY2310000020]
- Youth Innovation Promotion Association CAS [CX2310000091]
Ask authors/readers for more resources
Developing low-cost, active, and stable electrocatalysts toward acidic oxygen evolution reaction (OER) is highly desirable for proton electrolyte membrane electrolyzers to produce renewable H-2 energy. Here, we report a noble metal-free NiS-based electrocatalyst suitable for acidic OER media through a facile one-step pyrolysis approach. The prepared NiS particles display high crystallinity and are coupled on a sulfur-doped carbon nitrogen support. Synchrotron X-ray spectroscopies demonstrate that the strong hybridization of Ni and S not only provides a favorable electronic structure for the adsorption and dissociation of water but also offers high stability against the corrosive acidic media. Consequently, the NiS-based electrocatalyst exhibits high efficiency and stable OER performance with a low overpotential of 337 mV at a current density of 10 mA cm(-2) with a Tafel slope of 53.2 mV dec(-1).
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