@article{Pan:2024:10.1038/s41467-024-47568-y,
author = {Pan, X and Yan, M and Liu, Q and Zhou, X and Liao, X and Sun, C and Zhu, J and McAleese, C and Couture, P and Sharpe, MK and Smith, R and Peng, N and England, J and Tsang, SCE and Zhao, Y and Mai, L},
doi = {10.1038/s41467-024-47568-y},
journal = {Nat Commun},
title = {Electric-field-assisted proton coupling enhanced oxygen evolution reaction.},
url = {http://dx.doi.org/10.1038/s41467-024-47568-y},
volume = {15},
year = {2024}
}

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TY  - JOUR
AB  - The discovery of Mn-Ca complex in photosystem II stimulates research of manganese-based catalysts for oxygen evolution reaction (OER). However, conventional chemical strategies face challenges in regulating the four electron-proton processes of OER. Herein, we investigate alpha-manganese dioxide (α-MnO2) with typical MnIV-O-MnIII-HxO motifs as a model for adjusting proton coupling. We reveal that pre-equilibrium proton-coupled redox transition provides an adjustable energy profile for OER, paving the way for in-situ enhancing proton coupling through a new "reagent"- external electric field. Based on the α-MnO2 single-nanowire device, gate voltage induces a 4-fold increase in OER current density at 1.7 V versus reversible hydrogen electrode. Moreover, the proof-of-principle external electric field-assisted flow cell for water splitting demonstrates a 34% increase in current density and a 44.7 mW/cm² increase in net output power. These findings indicate an in-depth understanding of the role of proton-incorporated redox transition and develop practical approach for high-efficiency electrocatalysis.
AU  - Pan,X
AU  - Yan,M
AU  - Liu,Q
AU  - Zhou,X
AU  - Liao,X
AU  - Sun,C
AU  - Zhu,J
AU  - McAleese,C
AU  - Couture,P
AU  - Sharpe,MK
AU  - Smith,R
AU  - Peng,N
AU  - England,J
AU  - Tsang,SCE
AU  - Zhao,Y
AU  - Mai,L
DO  - 10.1038/s41467-024-47568-y
PY  - 2024///
TI  - Electric-field-assisted proton coupling enhanced oxygen evolution reaction.
T2  - Nat Commun
UR  - http://dx.doi.org/10.1038/s41467-024-47568-y
UR  - https://www.ncbi.nlm.nih.gov/pubmed/38637529
VL  - 15
ER  - 

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