In this section
If the results of the measurements performed at the PEPR Facility are included in a publication, the following statement shall be added to the Acknowledgments section: "The EPR measurements were performed at the Centre for Pulse EPR at Imperial College London (PEPR), supported by the EPSRC grant EP/T031425/1."
We would be grateful if the Facility could be informed of the submission by sending an e-mail to m.roessler@imperial.ac.uk and a.collauto@imperial.ac.uk.
@article{Bajada:2020:10.1002/ange.202002680,
author = {Bajada, MA and Roy, S and Warnan, J and Abdiaziz, K and Wagner, A and Roessler, MM and Reisner, E},
doi = {10.1002/ange.202002680},
journal = {Angewandte Chemie},
pages = {15763--15771},
title = {A Precious-Metal-Free Hybrid Electrolyzer for Alcohol Oxidation Coupled to CO<inf>2</inf>-to-Syngas Conversion},
url = {http://dx.doi.org/10.1002/ange.202002680},
volume = {132},
year = {2020}
}
TY - JOUR
AB - © 2020 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA Electrolyzers combining CO2 reduction (CO2R) with organic substrate oxidation can produce fuel and chemical feedstocks with a relatively low energy requirement when compared to systems that source electrons from water oxidation. Here, we report an anodic hybrid assembly based on a (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO) electrocatalyst modified with a silatrane-anchor (STEMPO), which is covalently immobilized on a mesoporous indium tin oxide (mesoITO) scaffold for efficient alcohol oxidation (AlcOx). This molecular anode was subsequently combined with a cathode consisting of a polymeric cobalt phthalocyanine on carbon nanotubes to construct a hybrid, precious-metal-free coupled AlcOx–CO2R electrolyzer. After three-hour electrolysis, glycerol is selectively oxidized to glyceraldehyde with a turnover number (TON) of ≈1000 and Faradaic efficiency (FE) of 83 %. The cathode generated a stoichiometric amount of syngas with a CO:H2 ratio of 1.25±0.25 and an overall cobalt-based TON of 894 with a FE of 82 %. This prototype device inspires the design and implementation of nonconventional strategies for coupling CO2R to less energy demanding, and value-added, oxidative chemistry.
AU - Bajada,MA
AU - Roy,S
AU - Warnan,J
AU - Abdiaziz,K
AU - Wagner,A
AU - Roessler,MM
AU - Reisner,E
DO - 10.1002/ange.202002680
EP - 15771
PY - 2020///
SN - 0044-8249
SP - 15763
TI - A Precious-Metal-Free Hybrid Electrolyzer for Alcohol Oxidation Coupled to CO<inf>2</inf>-to-Syngas Conversion
T2 - Angewandte Chemie
UR - http://dx.doi.org/10.1002/ange.202002680
VL - 132
ER -
Centre for Pulse EPR Spectroscopy
Department of Chemistry
Imperial College London
White City Campus
Molecular Sciences Research Hub
London W12 0BZ
E-mail: a.collauto@imperial.ac.uk
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