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Facile preparation of CoO nanoparticles embedded N-doped porous carbon from conjugated microporous polymer for oxygen reduction reaction.
- Source :
-
Journal of colloid and interface science [J Colloid Interface Sci] 2020 Mar 07; Vol. 562, pp. 550-557. Date of Electronic Publication: 2019 Nov 20. - Publication Year :
- 2020
-
Abstract
- Developing cost-effective approaches for fabricating porous carbon (PC) based catalysts with favourable oxygen reduction reaction (ORR) performance is highly significant for fuel-cell devices. Herein, we reported a precursor controlled, molten salt-templated approach to prepare ultrafine CoO nanoparticles embedded nitrogen-doped PC materials with high surface area (1236 m <superscript>2</superscript> g <superscript>-1</superscript> ) and large pore volume (0.68 cm <superscript>3</superscript> g <superscript>-1</superscript> ). This method is simple and feasible, which produce CoO nanoparticles that were uniformly distributed on carbon skeleton with diameters in the range of 5-10 nm. The unexpected collapse of porous structures and agglomeration of metal nanoparticles were suppressed in the synthetic process. The as-made sample not only showed efficient catalytic activity towards ORR in alkaline media with a half wave potential (E <subscript>1/2</subscript> ) of 0.85 V (vs. RHE), but also exhibited better stability and stronger resistance to methanol than Pt/C.<br /> (Copyright © 2019 Elsevier Inc. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1095-7103
- Volume :
- 562
- Database :
- MEDLINE
- Journal :
- Journal of colloid and interface science
- Publication Type :
- Academic Journal
- Accession number :
- 31771870
- Full Text :
- https://doi.org/10.1016/j.jcis.2019.11.079