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  Cobalt-exchanged poly(heptazine imides) as transition metal–Nx electrocatalysts for the oxygen evolution Reaction

Ye, M.-Y., Li, S., Zhao, X., Tarakina, N. V., Teutloff, C., Chow, W. Y., et al. (2020). Cobalt-exchanged poly(heptazine imides) as transition metal–Nx electrocatalysts for the oxygen evolution Reaction. Advanced Materials, 32(9): 1903942. doi:10.1002/adma.201903942.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0005-A658-D Version Permalink: https://hdl.handle.net/21.11116/0000-000B-0A01-9
Genre: Journal Article

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 Creators:
Ye, Meng-Yang, Author
Li, Shuang, Author
Zhao, Xiaojia, Author
Tarakina, Nadezda V.1, Author           
Teutloff, Christian, Author
Chow, Wing Ying, Author
Bittl, Robert, Author
Thomas, Arne, Author
Affiliations:
1Nadezda V. Tarakina, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2522693              

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Free keywords: carbon nitride, electrocatalysis, M–Nx–C, oxygen evolution reaction, poly(heptazine imides)
 Abstract: Abstract Poly(heptazine imides) hosting cobalt ions as countercations are presented as promising electrocatalysts for the oxygen evolution reaction (OER). A facile mixed-salt melt-assisted condensation is developed to prepare such cobalt poly(heptazine imides) (PHI-Co). The Co ions can be introduced in well-controlled amounts using this method, and are shown to be atomically dispersed within the imide-linked heptazine matrix. When applied to electrocatalytic OER, PHI-Co shows a remarkable activity with an overpotential of 324 mV and Tafel slope of 44 mV dec?1 in 1 m KOH.

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Language(s): eng - English
 Dates: 2020-01-272020
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1002/adma.201903942
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Title: Advanced Materials
  Other : Adv. Mater.
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 32 (9) Sequence Number: 1903942 Start / End Page: - Identifier: ISSN: 0935-9648