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Main Title: Cobalt‐Exchanged Poly(Heptazine Imides) as Transition Metal–Nx Electrocatalysts for the Oxygen Evolution Reaction
Author(s): Ye, Meng‐Yang
Li, Shuang
Zhao, Xiaojia
Tarakina, Nadezda V.
Teutloff, Christian
Chow, Wing Ying
Bittl, Robert
Thomas, Arne
Type: Article
Language Code: en
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.
Issue Date: 27-Jan-2020
Date Available: 3-Sep-2020
DDC Class: 540 Chemie und zugeordnete Wissenschaften
660 Chemische Verfahrenstechnik
Subject(s): carbon nitride
oxygen evolution reaction
poly(heptazine imides)
Sponsor/Funder: DFG, 390540038, EXC 2008: UniSysCat
TU Berlin, Open-Access-Mittel - 2020
Journal Title: Advanced Materials
Publisher: Wiley-VCH
Publisher Place: Weinheim
Volume: 32
Issue: 9
Article Number: 1903942
Publisher DOI: 10.1002/adma.201903942
EISSN: 1521-4095
ISSN: 0935-9648
Appears in Collections:FG Funktionsmaterialien » Publications

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