Interfacial synergy within bimetallic oxide promotes selective hydrogenolysis of furfuryl alcohol to 1,5-pentanediol

[Display omitted] •Interfacial synergy within the bimetallic oxide CoOx-PtOx was presented.•Interfacial synergy promoted the content of Co2+ and the dispersion of metal particles.•1,5-pentanedi selectivity was enhanced by interfacial synergy.•The formation of 1,5-PDO, THFA and 1,2-PDO are competing...

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Veröffentlicht in:Applied surface science 2024-01, Vol.642, p.158571, Article 158571
Hauptverfasser: Liu, Dong, Fu, Junhong, Wang, Jian, Zhu, Xiaomei, Xu, Jilei, Zhao, Yang, Huang, Jiahui
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Sprache:eng
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Zusammenfassung:[Display omitted] •Interfacial synergy within the bimetallic oxide CoOx-PtOx was presented.•Interfacial synergy promoted the content of Co2+ and the dispersion of metal particles.•1,5-pentanedi selectivity was enhanced by interfacial synergy.•The formation of 1,5-PDO, THFA and 1,2-PDO are competing reactions. Cobalt-based catalysts have displayed intrinsic activity for selective hydrogenolysis of furfural alcohol (FFA) to 1,5-pentanediol (1,5-PDO), but how to efficiently enhance 1,5-PDO selectivity remain a challenge. We prepared a series of CoPtLa-Hx catalysts by different reduction temperatures, and found the interfacial synergy within the bimetallic oxide CoOx-PtOx of the CoPtLa-H5 catalyst not only boosted the dispersion of Co species and Pt species, also increased electronic interactions within the bimetallic oxide which promoted the formation of the content of Co2+ that are critical to C-O bond rupture of FFA. The interfacial synergy significantly enhanced the 1,5-PDO yield (40.3 %) and favored high catalyst stability. We found that the formations of 1,5-PDO, 1,2-PDO and tetrahydrofurfuryl alcohol (THFA) are competing reactions, which is helpful to the design of highly selective catalysts towards the conversion FFA to 1,5-PDO.
ISSN:0169-4332
DOI:10.1016/j.apsusc.2023.158571