Selectively anchoring single atoms on specific sites of supports for improved oxygen evolution

Zhirong Zhang, Chen Feng, Dongdi Wang, Shiming Zhou (), Ruyang Wang, Sunpei Hu, Hongliang Li, Ming Zuo, Yuan Kong (), Jun Bao () and Jie Zeng ()
Additional contact information
Zhirong Zhang: University of Science and Technology of China
Chen Feng: University of Science and Technology of China
Dongdi Wang: University of Science and Technology of China
Shiming Zhou: University of Science and Technology of China
Ruyang Wang: University of Science and Technology of China
Sunpei Hu: University of Science and Technology of China
Hongliang Li: University of Science and Technology of China
Ming Zuo: University of Science and Technology of China
Yuan Kong: University of Science and Technology of China
Jun Bao: University of Science and Technology of China
Jie Zeng: University of Science and Technology of China

Nature Communications, 2022, vol. 13, issue 1, 1-10

Abstract: Abstract The homogeneity of single-atom catalysts is only to the first-order approximation when all isolated metal centers interact identically with the support. Since the realistic support with various topologies or defects offers diverse coordination environments, realizing real homogeneity requires precise control over the anchoring sites. In this work, we selectively anchor Ir single atoms onto the three-fold hollow sites (Ir1/TO–CoOOH) and oxygen vacancies (Ir1/VO–CoOOH) on defective CoOOH surface to investigate how the anchoring sites modulate catalytic performance. The oxygen evolution activities of Ir1/TO–CoOOH and Ir1/VO–CoOOH are improved relative to CoOOH through different mechanisms. For Ir1/TO–CoOOH, the strong electronic interaction between single-atom Ir and the support modifies the electronic structure of the active center for stronger electronic affinity to intermediates. For Ir1/VO–CoOOH, a hydrogen bonding is formed between the coordinated oxygen of single-atom Ir center and the oxygenated intermediates, which stabilizes the intermediates and lowers the energy barrier of the rate-determining step.

Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.nature.com/articles/s41467-022-30148-3 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:13:y:2022:i:1:d:10.1038_s41467-022-30148-3

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

DOI: 10.1038/s41467-022-30148-3

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 ().