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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202209646
|2 doi
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|a eng
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|a Xiong, Lunqiao
|e verfasserin
|4 aut
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|a Highly Selective Transformation of Biomass Derivatives to Valuable Chemicals by Single-Atom Photocatalyst Ni/TiO2
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|c 2023
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|a Text
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|a ƒaComputermedien
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|a Date Completed 20.04.2023
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|a Date Revised 20.04.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.
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|a Selective CC cleavage of the biomass derivative glycerol under mild conditions is recognized as a promising yet challenging synthesis route to produce value-added chemicals. Here, a highly selective catalyst for the transformation of glycerol to the high-value product glycolaldehyde is presented, which is composed of nickel single atoms confined to the surface of titanium dioxide. Driven by light, the catalyst operates under ambient conditions using air as a green oxidant. The optimized catalyst shows a selectivity of over 60% to glycolaldehyde, resulting in 1058 µmol gCat -1 h-1 production rate, and ≈3 times higher turnover number than NiOx -nanoparticle-decorated TiO2 photocatalyst. Diverse operando and in situ spectroscopies unveil the unique function of the Ni single atom, which can significantly promote oxygen adsorption, work as an electron sink, and accelerate the production of superoxide radicals, thereby improving the selectivity toward glycolaldehyde over other by-products
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|a Journal Article
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|a biomass derivatives
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|a glycerol
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|a glycolaldehyde
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|a selective oxidation
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|a single-atom photocatalysts
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|a Qi, Haifeng
|e verfasserin
|4 aut
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|a Zhang, Shengxin
|e verfasserin
|4 aut
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|a Zhang, Leilei
|e verfasserin
|4 aut
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|a Liu, Xiaoyan
|e verfasserin
|4 aut
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|a Wang, Aiqin
|e verfasserin
|4 aut
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|a Tang, Junwang
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 35(2023), 16 vom: 24. Apr., Seite e2209646
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|g volume:35
|g year:2023
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|g day:24
|g month:04
|g pages:e2209646
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|u http://dx.doi.org/10.1002/adma.202209646
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