In:
Advanced Functional Materials, Wiley, Vol. 34, No. 1 ( 2024-01)
Abstract:
Ru as a cocatalyst has attracted wide attention as a substitute for Pt precious metal. However, the strong interaction between Ru and H atoms reduces the efficiency of hydrogen (H 2 ) desorption and slows the overall hydrogen evolution reaction (HER) efficiency. How to further improve the efficiency of Ru‐based cocatalyst is challenging. Herein, single‐atom Co‐ultrafine RuO x clusters codecorated TiO 2 nanosheets for photocatalytic HER are synthesized using a simple hydrothermal–calcination method. Experiments and theoretical calculations demonstrate that Co atoms can serve as a specific electronic medium, promoting electron enrichment at RuO x , thereby enhancing the adsorption of H + . Moreover, the electronic state of the interaction between adjacent Co atoms and RuO x is conducive to the desorption of H 2 . As a result, the proposed photocatalyst system gives a classy photocatalytic HER performance. The hydrogen production rate at stationary point reaches up to 20.20 mmol g −1 h −1 , and the apparent quantum yield at 365 nm is 86.5%. It is worth noting that the hydrogen production rate in seawater is as high as 9.83 mmol g −1 h −1 . This work offers precise guidance to design catalysts for efficient photocatalytic H 2 production from the in‐depth understanding of the electronic coupling effect of coupling active sites.
Type of Medium:
Online Resource
ISSN:
1616-301X
,
1616-3028
DOI:
10.1002/adfm.202309056
Language:
English
Publisher:
Wiley
Publication Date:
2024
detail.hit.zdb_id:
2029061-5
detail.hit.zdb_id:
2039420-2
SSG:
11
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