Size-dependent activity and selectivity of carbon dioxide photocatalytic reduction over platinum nanoparticles

Chunyang Dong, Cheng Lian, Songchang Hu, Zesheng Deng, Jianqiu Gong, Mingde Li, Honglai Liu, Mingyang Xing () and Jinlong Zhang
Additional contact information
Chunyang Dong: East China University of Science and Technology
Cheng Lian: East China University of Science and Technology
Songchang Hu: East China University of Science and Technology
Zesheng Deng: East China University of Science and Technology
Jianqiu Gong: East China University of Science and Technology
Mingde Li: Shantou University
Honglai Liu: East China University of Science and Technology
Mingyang Xing: East China University of Science and Technology
Jinlong Zhang: East China University of Science and Technology

Nature Communications, 2018, vol. 9, issue 1, 1-11

Abstract: Abstract Platinum nanoparticles (Pt NPs) are one of the most efficient cocatalysts in photocatalysis, and their size determines the activity and the selectivity of the catalytic reaction. Nevertheless, an in-depth understanding of the platinum’s size effect in the carbon dioxide photocatalytic reduction is still lacking. Through analyses of the geometric features and electronic properties with variable-sized Pt NPs, here we show a prominent size effect of Pt NPs in both the activity and selectivity of carbon dioxide photocatalytic reduction. Decreasing the size of Pt NPs promotes the charge transfer efficiency, and thus enhances both the carbon dioxide photocatalytic reduction and hydrogen evolution reaction (HER) activity, but leads to higher selectivity towards hydrogen over methane. Combining experimental results and theoretical calculations, in Pt NPs, the terrace sites are revealed as the active sites for methane generation; meanwhile, the low-coordinated sites are more favorable in the competing HER.

Date: 2018
References: Add references at CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
https://www.nature.com/articles/s41467-018-03666-2 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:9:y:2018:i:1:d:10.1038_s41467-018-03666-2

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

DOI: 10.1038/s41467-018-03666-2

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 ().