Restructuring highly electron-deficient metal-metal oxides for boosting stability in acidic oxygen evolution reaction

Xinghui Liu, Shibo Xi, Hyunwoo Kim, Ashwani Kumar, Jinsun Lee, Jian Wang, Ngoc Quang Tran, Taehun Yang, Xiaodong Shao, Mengfang Liang, Min Gyu Kim and Hyoyoung Lee ()
Additional contact information
Xinghui Liu: Institute of Basic Science (IBS)
Shibo Xi: Institute of Chemical and Engineering Sciences, A*STAR
Hyunwoo Kim: Sungkyunkwan University (SKKU)
Ashwani Kumar: Institute of Basic Science (IBS)
Jinsun Lee: Institute of Basic Science (IBS)
Jian Wang: Seoul National University
Ngoc Quang Tran: Institute of Basic Science (IBS)
Taehun Yang: Institute of Basic Science (IBS)
Xiaodong Shao: Institute of Basic Science (IBS)
Mengfang Liang: Institute of Basic Science (IBS)
Min Gyu Kim: Pohang University of Science and Technology
Hyoyoung Lee: Institute of Basic Science (IBS)

Nature Communications, 2021, vol. 12, issue 1, 1-11

Abstract: Abstract The poor catalyst stability in acidic oxidation evolution reaction (OER) has been a long-time issue. Herein, we introduce electron-deficient metal on semiconducting metal oxides-consisting of Ir (Rh, Au, Ru)-MoO3 embedded by graphitic carbon layers (IMO) using an electrospinning method. We systematically investigate IMO’s structure, electron transfer behaviors, and OER catalytic performance by combining experimental and theoretical studies. Remarkably, IMO with an electron-deficient metal surface (Irx+; x > 4) exhibit a low overpotential of only ~156 mV at 10 mA cm−2 and excellent durability in acidic media due to the high oxidation state of metal on MoO3. Furthermore, the proton dissociation pathway is suggested via surface oxygen serving as proton acceptors. This study suggests high stability with high catalytic performance in these materials by creating electron-deficient surfaces and provides a general, unique strategy for guiding the design of other metal-semiconductor nanocatalysts.

Date: 2021
References: Add references at CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.nature.com/articles/s41467-021-26025-0 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-26025-0

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-021-26025-0

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().