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Cited by 535

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

Open access
Dong, Chunyang, Lian, Cheng, Hu, Songchang, Deng, Zesheng, Gong, Jianqiu, Li, Mingde, Liu, Honglai, Xing, Mingyang, Zhang, Jinlong·2018·Nature Communications

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.

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Metadata

Authors
Dong, C., Lian, C., Hu, S., Deng, Z., Gong, J., Li, M., Liu, H., Xing, M., & Zhang, J.
Venue
Nature Communications
Published
2018-03-28
Volume
9
Issue
1
Pages
1252-1252
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2795151060
Cited by
535
References
6
FWCI
14.36
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Size-dependent activity and selectivity of carbon dioxide photocatalytic reduction over platinum nanoparticles. https://app.cochat.ai/papers/10.1038/s41467-018-03666-2
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Dong, C., Lian, C., Hu, S., Deng, Z., Gong, J., Li, M., Liu, H., Xing, M., & Zhang, J. (2018). Size-dependent activity and selectivity of carbon dioxide photocatalytic reduction over platinum nanoparticles. Nature Communications. https://doi.org/10.1038/s41467-018-03666-2

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