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Rational design of bimetallic photocatalysts based on plasmonically-derived hot carriers
Hot carriers generated by plasmonic excitations have recently opened up new avenues in photocatalysis. The transfer of these energetic carriers to adjacent molecules can promote chemical transformations that are important for hydrogen generation by water splitting, CO(2) reduction and degradation of...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
RSC
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9419383/ https://www.ncbi.nlm.nih.gov/pubmed/36133839 http://dx.doi.org/10.1039/d0na00728e |
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author | Salmón-Gamboa, Jorge U. Romero-Gómez, Mayela Roth, Diane J. Krasavin, Alexey V. Wang, Pan Dickson, Wayne Zayats, Anatoly V. |
author_facet | Salmón-Gamboa, Jorge U. Romero-Gómez, Mayela Roth, Diane J. Krasavin, Alexey V. Wang, Pan Dickson, Wayne Zayats, Anatoly V. |
author_sort | Salmón-Gamboa, Jorge U. |
collection | PubMed |
description | Hot carriers generated by plasmonic excitations have recently opened up new avenues in photocatalysis. The transfer of these energetic carriers to adjacent molecules can promote chemical transformations that are important for hydrogen generation by water splitting, CO(2) reduction and degradation of organic pollutants. Here, we have developed and optimised a plasmonic hot-carrier catalytic system based on silica nanoparticles decorated with plasmonic gold nanoparticles as a source of hot carriers, equipped with platinum nanoclusters as co-catalyst for the enhancement of hot-carrier extraction. The latter plays a triple role by providing: a surface favourable for molecular adsorption; hot-electron generation near the nanoclusters due to field enhancement effects and electron momentum relaxation facilitating the electron transfer across the metal surface, exactly where molecules are adsorbed. The combination of plasmonic and catalytic metals in nano-heterostructured devices provides a new platform for photocatalytic processes and is of significant interest for future solar-based clean technologies. |
format | Online Article Text |
id | pubmed-9419383 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | RSC |
record_format | MEDLINE/PubMed |
spelling | pubmed-94193832022-09-20 Rational design of bimetallic photocatalysts based on plasmonically-derived hot carriers Salmón-Gamboa, Jorge U. Romero-Gómez, Mayela Roth, Diane J. Krasavin, Alexey V. Wang, Pan Dickson, Wayne Zayats, Anatoly V. Nanoscale Adv Chemistry Hot carriers generated by plasmonic excitations have recently opened up new avenues in photocatalysis. The transfer of these energetic carriers to adjacent molecules can promote chemical transformations that are important for hydrogen generation by water splitting, CO(2) reduction and degradation of organic pollutants. Here, we have developed and optimised a plasmonic hot-carrier catalytic system based on silica nanoparticles decorated with plasmonic gold nanoparticles as a source of hot carriers, equipped with platinum nanoclusters as co-catalyst for the enhancement of hot-carrier extraction. The latter plays a triple role by providing: a surface favourable for molecular adsorption; hot-electron generation near the nanoclusters due to field enhancement effects and electron momentum relaxation facilitating the electron transfer across the metal surface, exactly where molecules are adsorbed. The combination of plasmonic and catalytic metals in nano-heterostructured devices provides a new platform for photocatalytic processes and is of significant interest for future solar-based clean technologies. RSC 2020-12-18 /pmc/articles/PMC9419383/ /pubmed/36133839 http://dx.doi.org/10.1039/d0na00728e Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Salmón-Gamboa, Jorge U. Romero-Gómez, Mayela Roth, Diane J. Krasavin, Alexey V. Wang, Pan Dickson, Wayne Zayats, Anatoly V. Rational design of bimetallic photocatalysts based on plasmonically-derived hot carriers |
title | Rational design of bimetallic photocatalysts based on plasmonically-derived hot carriers |
title_full | Rational design of bimetallic photocatalysts based on plasmonically-derived hot carriers |
title_fullStr | Rational design of bimetallic photocatalysts based on plasmonically-derived hot carriers |
title_full_unstemmed | Rational design of bimetallic photocatalysts based on plasmonically-derived hot carriers |
title_short | Rational design of bimetallic photocatalysts based on plasmonically-derived hot carriers |
title_sort | rational design of bimetallic photocatalysts based on plasmonically-derived hot carriers |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9419383/ https://www.ncbi.nlm.nih.gov/pubmed/36133839 http://dx.doi.org/10.1039/d0na00728e |
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