Advanced Materials, volume 34, issue 14, pages 2109330
Plasmonic Active “Hot Spots”‐Confined Photocatalytic CO 2 Reduction with High Selectivity for CH 4 Production
Xiaoyi Jiang
1
,
Jindou Huang
1
,
Zhenhua Bi
1
,
Wenjun Ni
2
,
Gagik Gurzadyan
2
,
Yongan Zhu
1
,
Zhenyi Zhang
1
Publication type: Journal Article
Publication date: 2022-02-19
Journal:
Advanced Materials
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 29.4
ISSN: 09359648, 15214095
General Materials Science
Mechanical Engineering
Mechanics of Materials
Abstract
Plasmonic nanostructures have tremendous potential to be applied in photocatalytic CO2 reduction, since their localized surface plasmon resonance can collect low-energy-photons to derive energetic "hot electrons" for reducing the CO2 activation-barrier. However, the hot electron-driven CO2 reduction is usually limited by poor efficiency and low selectivity for producing kinetically unfavorable hydrocarbons. Here, a new idea of plasmonic active "hot spot"-confined photocatalysis is proposed to overcome this drawback. W18 O49 nanowires on the outer surface of Au nanoparticles-embedded TiO2 electrospun nanofibers are assembled to obtain lots of Au/TiO2 /W18 O49 sandwich-like substructures in the formed plasmonic heterostructure. The short distance (< 10 nm) between Au and adjacent W18 O49 can induce an intense plasmon-coupling to form the active "hot spots" in the substructures. These active "hot spots" are capable of not only gathering the incident light to enhance "hot electrons" generation and migration, but also capturing protons and CO through the dual-hetero-active-sites (Au-O-Ti and W-O-Ti) at the Au/TiO2 /W18 O49 interface, as evidenced by systematic experiments and simulation analyses. Thus, during photocatalytic CO2 reduction at 43± 2 °C, these active "hot spots" enriched in the well-designed Au/TiO2 /W18 O49 plasmonic heterostructure can synergistically confine the hot-electron, proton, and CO intermediates for resulting in the CH4 and CO production-rates at ≈35.55 and ≈2.57 µmol g-1 h-1 , respectively, and the CH4 -product selectivity at ≈93.3%.
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Citations by publishers
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Oxford University Press
1 publication, 0.74%
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- We do not take into account publications without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Jiang X. et al. Plasmonic Active “Hot Spots”‐Confined Photocatalytic CO 2 Reduction with High Selectivity for CH 4 Production // Advanced Materials. 2022. Vol. 34. No. 14. p. 2109330.
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Jiang X., Huang J., Bi Z., Ni W., Gurzadyan G., Zhu Y., Zhang Z. Plasmonic Active “Hot Spots”‐Confined Photocatalytic CO 2 Reduction with High Selectivity for CH 4 Production // Advanced Materials. 2022. Vol. 34. No. 14. p. 2109330.
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TY - JOUR
DO - 10.1002/adma.202109330
UR - https://doi.org/10.1002/adma.202109330
TI - Plasmonic Active “Hot Spots”‐Confined Photocatalytic CO 2 Reduction with High Selectivity for CH 4 Production
T2 - Advanced Materials
AU - Huang, Jindou
AU - Bi, Zhenhua
AU - Ni, Wenjun
AU - Gurzadyan, Gagik
AU - Zhu, Yongan
AU - Zhang, Zhenyi
AU - Jiang, Xiaoyi
PY - 2022
DA - 2022/02/19 00:00:00
PB - Wiley
SP - 2109330
IS - 14
VL - 34
SN - 0935-9648
SN - 1521-4095
ER -
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@article{2022_Jiang,
author = {Jindou Huang and Zhenhua Bi and Wenjun Ni and Gagik Gurzadyan and Yongan Zhu and Zhenyi Zhang and Xiaoyi Jiang},
title = {Plasmonic Active “Hot Spots”‐Confined Photocatalytic CO 2 Reduction with High Selectivity for CH 4 Production},
journal = {Advanced Materials},
year = {2022},
volume = {34},
publisher = {Wiley},
month = {feb},
url = {https://doi.org/10.1002/adma.202109330},
number = {14},
pages = {2109330},
doi = {10.1002/adma.202109330}
}
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MLA
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Jiang, Xiaoyi, et al. “Plasmonic Active “Hot Spots”‐Confined Photocatalytic CO 2 Reduction with High Selectivity for CH 4 Production.” Advanced Materials, vol. 34, no. 14, Feb. 2022, p. 2109330. https://doi.org/10.1002/adma.202109330.