Journal
ADVANCED MATERIALS
Volume 33, Issue 46, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.202006654
Keywords
hot carriers; photocatalysis; photoelectrochemistry; plasmonic; spectroelectrochemistry
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Funding
- National Science Foundation [CHE-1808539, DMR-1352328]
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This review focuses on utilizing photoelectrochemistry to study plasmonic electrodes, providing a comprehensive understanding of hot-hole and hot-electron transfers in chemical reactions. The working principles and applications of spectroelectrochemistry for plasmonic materials are also discussed, highlighting the powerful toolbox that photoelectrochemistry provides for gaining mechanistic insights into plasmonic photocatalysis.
Utilizing plasmon-generated hot carriers to drive chemical reactions has emerged as a popular topic in solar photocatalysis. However, a complete description of the underlying mechanism of hot-carrier transfer in photochemical processes remains elusive, particularly for those involving hot holes. Photoelectrochemistry enables to localize hot holes on photoanodes and hot electrons on photocathodes and thus offers an approach to separately explore the hole-transfer dynamics and electron-transfer dynamics. This review summarizes a comprehensive understanding of both hot-hole and hot-electron transfers from photoelectrochemical studies on plasmonic electrodes. Additionally, working principles and applications of spectroelectrochemistry are discussed for plasmonic materials. It is concluded that photoelectrochemistry provides a powerful toolbox to gain mechanistic insights into plasmonic photocatalysis.
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