- Title
- Unraveling the structure-activity-selectivity relationships in furfuryl alcohol photoreforming to H2 and hydrofuroin over ZnxIn2S3+x photocatalysts
- Creator
- Gunawan, Denny; Yuwono, Jodie A.; Wang, Yu; Hocking, Rosalie K.; Chan, Ting-Shan; Toe, Cui Ying; Scott, Jason; Amal, Rose; Kumar, Priyank V.; Kaleem, Akasha; Nielsen, Michael P.; Tayebjee, Murad J.Y.; Oppong-Antwi, Louis; Wen, Haotian; Kuschnerus, Inga; Chang, Shery L.Y.
- Relation
- Applied Catalysis B: Environmental Vol. 335, no. 122880
- Publisher Link
- http://dx.doi.org/10.1016/j.apcatb.2023.122880
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2023
- Description
- ZnxIn2S3+x has emerged as a promising candidate for alcohol photoreforming based on C-H activation and C-C coupling. However, the underlying structure-activity-selectivity relationships remain unclear. Here we report on ZnxIn2S3+x with varying Zn:In:S ratios for visible-light-driven furfuryl alcohol reforming into H2 and hydrofuroin, a jet fuel precursor, via C-H activation and C-C coupling. S-• radicals are directly identified as the catalytically active sites responsible for C-H activation in furfuryl alcohol, promoting selectivity toward H2 and hydrofuroin. The optimum ZnxIn2S3+x activity derives from a trade-off between enhanced carrier dynamics and diminished visible light absorption as the x value in ZnxIn2S3+x increases. Further, a higher Zn-S:In-S layer ratio prolongs the S-• lifetime in the Zn-S layer, promoting C-H activation and delivering a higher C-C coupling product selectivity. The findings represent a step toward further establishing sulfide-based photocatalysts for sustainable H2 production via organic photoreforming.
- Subject
- photoreforming; C-H activation; C-C coupling; Hydrofuroin; ZnxIn2S3+x
- Identifier
- http://hdl.handle.net/1959.13/1483663
- Identifier
- uon:51162
- Identifier
- ISSN:0926-3373
- Language
- eng
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