Electrochemical oxygen reduction catalysed by Ni[SUBSCRIPT 3](hexaiminotriphenylene)[SUBSCRIPT 2]
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Miner-2016-Electrochemical oxygen.pdf
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Author(s)
Miner, Elise Marie
Fukushima, Tomohiro
Sheberla, Dennis
Sun, Lei
Surendranath, Yogesh
Dinca, Mircea
Alternative Title
Electrochemical oxygen reduction catalysed by Ni3(hexaiminotriphenylene)2
Date Issued
March 2016
Journal
Nature Communications
Publisher
Nature Publishing Group
Citation
Miner, Elise M., Tomohiro Fukushima, Dennis Sheberla, Lei Sun, Yogesh Surendranath, and Mircea Dincă. “Electrochemical Oxygen Reduction Catalysed by Ni3(hexaiminotriphenylene)2.” Nat Comms 7 (March 8, 2016): 10942. © 2017 Macmillan Publishers Limited
Version
Final published version
Abstract
Control over the architectural and electronic properties of heterogeneous catalysts poses a major obstacle in the targeted design of active and stable non-platinum group metal electrocatalysts for the oxygen reduction reaction. Here we introduce Ni[SUBSCRIPT 3](HITP)[SUBSCRIPT 2] (HITP=2, 3, 6, 7, 10, 11-hexaiminotriphenylene) as an intrinsically conductive metal-organic framework which functions as a well-defined, tunable oxygen reduction electrocatalyst in alkaline solution. Ni[SUBSCRIPT 3](HITP)[SUBSCRIPT 2] exhibits oxygen reduction activity competitive with the most active non-platinum group metal electrocatalysts and stability during extended polarization. The square planar Ni-N[SUBSCRIPT 4] sites are structurally reminiscent of the highly active and widely studied non-platinum group metal electrocatalysts containing M-N[SUBSCRIPT 4] units. Ni[SUBSCRIPT 3](HITP)[SUBSCRIPT 2] and analogues thereof combine the high crystallinity of metal-organic frameworks, the physical durability and electrical conductivity of graphitic materials, and the diverse yet well-controlled synthetic accessibility of molecular species. Such properties may enable the targeted synthesis and systematic optimization of oxygen reduction electrocatalysts as components of fuel cells and electrolysers for renewable energy applications.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Massachusetts Institute of Technology. Research Laboratory of Electronics
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DOI of Published Version
https://doi.org/10.1038/ncomms10942
