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author:

Wei, Zhi-Quan (Wei, Zhi-Quan.) [1] | Xiao, Fang-Xing (Xiao, Fang-Xing.) [2]

Indexed by:

EI

Abstract:

Atomically precise metal nanoclusters (NCs) have emerged as feasible alternatives to traditional photosensitizers in solar energy conversion due to the unique atomic stacking mode, quantum size effect, and abundant active sites. Despite the sporadic advancement in fabricating metal NC-based photosystems, most of which are predominantly centered on Au NCs, unleashing atomically precise silver nanoclusters as light-harvesting antennas has still been in the infant stage, with the charge transfer mechanism remaining elusive. Herein, we comprehensively demonstrate the photosensitization effect of Ag NCs in the photoelectrochemical (PEC) water-splitting reaction and strictly evaluate the correlation of photosensitization efficiency with atomic architecture. To these ends, tailor-made negatively charged l-glutathione (GSH)-capped Ag NCs [Agx, Ag9(GSH)6, Ag16(GSH)9, Ag31(GSH)19] as building blocks are controllably deposited on the metal oxide (MOs = TiO2, WO3, Fe2O3) substrate by a facile self-assembly strategy. Benefiting from the highly efficient photosensitization effect of atomically precise Ag NCs, these self-assembled MOs/Ag NC heterostructured photoanodes with an elegant charge transfer interface demonstrate significantly enhanced photoelectrochemical water oxidation performances under visible-light irradiation on account of efficient charge transport from Ag NCs to the MO substrate, substantially prolonging the charge lifetime of Ag NCs. Our work would significantly inspire ongoing interest in unlocking the generic photosensitization capability of atomically precise metal NCs for solar energy conversion. © 2023 American Chemical Society.

Keyword:

Charge transfer Hematite Nanoclusters Photoelectrochemical cells Photosensitizers Silver Silver compounds Solar energy Solar energy conversion Titanium dioxide Tungsten compounds

Community:

  • [ 1 ] [Wei, Zhi-Quan]College of Materials Science and Engineering, Fuzhou University, New Campus, Fujian Province, Fuzhou City; 350108, China
  • [ 2 ] [Xiao, Fang-Xing]College of Materials Science and Engineering, Fuzhou University, New Campus, Fujian Province, Fuzhou City; 350108, China

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Source :

Inorganic Chemistry

ISSN: 0020-1669

Year: 2023

Issue: 15

Volume: 62

Page: 6138-6146

4 . 3

JCR@2023

4 . 3 0 0

JCR@2023

ESI HC Threshold:39

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 5

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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