Journal
JOURNAL OF PHOTONICS FOR ENERGY
Volume 10, Issue 2, Pages -Publisher
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
DOI: 10.1117/1.JPE.10.023507
Keywords
ZIF-67 precursor; one-dimensional alginate fibers; CoNC-CF-900; oxygen reduction reaciton electrocatalysts
Funding
- National Natural Science Foundation of China [21501105, 51672143, 51808303]
- Taishan Scholar Foundation [ts201511019]
- Taishan Scholars Program
- Applied Basic Research of Qingdao City (Special Youth Project) [19-6-2-74-cg]
- Youth Innovation Team Project of Shandong Provincial Education Department [2019KJC023]
- Outstanding Youth of Natural Science in Shandong Province [JQ201713]
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Zeolitic imidazolate framework (ZIF-67) precursor was successfully synthesized, which was supported by one-dimensional (1-D) cobalt alginate fibers. After the pyrolysis at 900 degrees C under N-2 atmosphere, the composites were converted to 1-D carbon-fiber-coated Co@N-doped porous carbon (CoNC-CF-900), acting as efficient oxygen reduction reaction (ORR) electrocatalysts. We investigated the effect of different pyrolysis temperatures on electrocatalytic activities of the obtained samples. The CoNC-CF-900 demonstrated excellent ORR performance, possessing the half-wave potential (E-1/2) of 0.833 V, the onset potential of 0.926 V, the limiting current density of -5.56 mA cm(-2), and excellent stability under fourelectron transfer pathway. (C) 2020 Society of Photo-Optical Instrumentation Engineers (SPIE)
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