期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 138, 期 12, 页码 4006-4009出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.6b01543
关键词
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资金
- National Science Foundation [CHE-1367702, DMR-1361470, CHE-1500201]
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001907]
- Wayne State University
- NSF MRI award [0216084]
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1500201] Funding Source: National Science Foundation
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1361741] Funding Source: National Science Foundation
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [0216084] Funding Source: National Science Foundation
The development of efficient water oxidation catalysts based on inexpensive and Earth-abundant materials is a prerequisite to enabling water splitting as a feasible source of alternative energy. In this work, we, report the synthesis of ternary cobalt manganese phosphide nanoparticles from the solution-phase reaction of manganese and cobalt carbonyl complexes with trioctylphosphine. The CoMnP nanoparticles (ca. 5 nm in diameter) are nearly monodisperse and homogeneous in nature. These CoMnP nanoparticles are capable of catalyzing water oxidation at an overpotential of 0.33 V with a 96% Faradaic efficiency when deposited as an ink with carbon black and Nafion. A slight decrease in activity is observed after 500 cycles, which is ascribed to the etching of P into solution, as well as the oxidation of the surface of the nanoparticles. Manganese-based ternary phosphides represent a promising new system, to explore for water oxidation catalysis.
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