Open Access
Open access
Science, volume 362, issue 6410, pages 69-72

Quantifying hot carrier and thermal contributions in plasmonic photocatalysis

Zhou Linan 1
Zhang Chao 2
Zhao Hangqi 2
Christopher Phillip 3
Nordlander Peter 2, 5
Halas Naomi 1, 2, 5
3
 
Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, CA, 93106-5080, USA.
4
 
School of Engineering and Applied Science, Princeton University, Princeton, NJ 08544-5263, USA.
Publication typeJournal Article
Publication date2018-10-05
Journal: Science
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor56.9
ISSN00368075, 10959203
Multidisciplinary
Abstract
Hot carriers reducing thermal barriers Plasmonic catalysts can generate hot charge carriers that can activate reactants and, in turn, reduce the overall barrier to a reaction. Zhou et al. studied the decomposition of ammonia to hydrogen on a copper alloy nanostructure that absorbed light and generated electrons that activated nitrogen atoms on ruthenium surface atoms (see the Perspective by Cortés). By measuring reaction rates at different wavelengths, light intensities, and catalyst surface temperatures, the light-induced reduction of the apparent activation barrier was quantified. Science, this issue p. 69; see also p. 28 A Ru-Cu alloy plasmonic photocatalyst substantially reduced the thermal activation barrier for ammonia decomposition. Photocatalysis based on optically active, “plasmonic” metal nanoparticles has emerged as a promising approach to facilitate light-driven chemical conversions under far milder conditions than thermal catalysis. However, an understanding of the relation between thermal and electronic excitations has been lacking. We report the substantial light-induced reduction of the thermal activation barrier for ammonia decomposition on a plasmonic photocatalyst. We introduce the concept of a light-dependent activation barrier to account for the effect of light illumination on electronic and thermal excitations in a single unified picture. This framework provides insight into the specific role of hot carriers in plasmon-mediated photochemistry, which is critically important for designing energy-efficient plasmonic photocatalysts.

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GOST |
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GOST Copy
Zhou L. et al. Quantifying hot carrier and thermal contributions in plasmonic photocatalysis // Science. 2018. Vol. 362. No. 6410. pp. 69-72.
GOST all authors (up to 50) Copy
Zhou L., Swearer D., Zhang C., Robatjazi H., Zhao H., Henderson L., Dong L., Christopher P., Carter E. A., Nordlander P., Halas N. Quantifying hot carrier and thermal contributions in plasmonic photocatalysis // Science. 2018. Vol. 362. No. 6410. pp. 69-72.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1126/science.aat6967
UR - https://doi.org/10.1126%2Fscience.aat6967
TI - Quantifying hot carrier and thermal contributions in plasmonic photocatalysis
T2 - Science
AU - Zhou, Linan
AU - Swearer, Dayne
AU - Robatjazi, Hossein
AU - Zhao, Hangqi
AU - Henderson, Luke
AU - Dong, Liangliang
AU - Carter, Emily A.
AU - Nordlander, Peter
AU - Halas, Naomi
AU - Zhang, Chao
AU - Christopher, Phillip
PY - 2018
DA - 2018/10/05 00:00:00
PB - American Association for the Advancement of Science (AAAS)
SP - 69-72
IS - 6410
VL - 362
SN - 0036-8075
SN - 1095-9203
ER -
BibTex |
Cite this
BibTex Copy
@article{2018_Zhou,
author = {Linan Zhou and Dayne Swearer and Hossein Robatjazi and Hangqi Zhao and Luke Henderson and Liangliang Dong and Emily A. Carter and Peter Nordlander and Naomi Halas and Chao Zhang and Phillip Christopher},
title = {Quantifying hot carrier and thermal contributions in plasmonic photocatalysis},
journal = {Science},
year = {2018},
volume = {362},
publisher = {American Association for the Advancement of Science (AAAS)},
month = {oct},
url = {https://doi.org/10.1126%2Fscience.aat6967},
number = {6410},
pages = {69--72},
doi = {10.1126/science.aat6967}
}
MLA
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MLA Copy
Zhou, Linan, et al. “Quantifying hot carrier and thermal contributions in plasmonic photocatalysis.” Science, vol. 362, no. 6410, Oct. 2018, pp. 69-72. https://doi.org/10.1126%2Fscience.aat6967.
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