Journal
CATALYSIS SCIENCE & TECHNOLOGY
Volume 9, Issue 3, Pages 578-582Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8cy02210k
Keywords
-
Categories
Funding
- MINECO [CTQ2015-66080-R]
- HEIWA NAKAJIMA FOUNDATION
Ask authors/readers for more resources
Synthesizing high-activity metal/heteroatom-co-doped carbon (M/H-C) electrocatalysts for the oxygen reduction reaction (ORR) is critical for the commercialization of fuel cells, but remains challenging because of the difficulty in making highly dispersed (M/H-C) electrocatalysts. Herein, a commercial ion-exchange resin, Amberlyst 15, is used as a support, and Co/2-methylimidazole is anchored on the ion-exchange site of the support to obtain Co/N/Amb as the precursor of the M/H-C electrocatalyst. After the precursor is pyrolyzed and converted into Co/N/C materials, it is activated with CO2, and the obtained material (act-Co/N/C) exhibits remarkable ORR activity with a high onset potential of 0.943 V (vs. the reversible hydrogen electrode) and an excellent kinetic current density comparable to commercial 5 wt% Pt/C in an alkaline medium. The favorable activity is mainly attributed to the ultra-dispersed CoNx and high porosity of act-Co/N/C. Our synthetic strategy could be applied to the preparation of other well-dispersed M/H-C materials. This work opens a new direction in the synthetic strategy of carbon materials.
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