Temperature-Controlled Selectivity of Hydrogenation and Hydrodeoxygenation in the Conversion of Biomass Molecule by the Ru-1/mpg-C3N4 Catalyst
Author(s)
Tian, Shubo
Wang, Ziyun
Gong, Wanbing
Chen, Wenxing
Feng, Quanchen
Wu, Qi
Chen, Chun
Chen, Chen
Peng, Qing
Gu, Lin
Zhao, Huijun
Hu, P
Wang, Dingsheng
Li, Yadong
Griffith University Author(s)
Year published
2018
Metadata
Show full item recordAbstract
Hydrogenation and hydrodeoxygenation are significant and distinct approaches for the conversion of biomass and biomass-derived oxygenated chemicals into high value-added chemicals and fuels. However, it remains a great challenge to synthesize catalysts that simultaneously possess excellent hydrogenation and hydrodeoxygenation performance. Herein, we report a catalyst made of isolated single-atom Ru supported on mesoporous graphitic carbon nitride (Ru1/mpg-C3N4), fabricated by a wet impregnation method. The as-prepared Ru1/mpg-C3N4 catalyst shows excellent hydrogenation and hydrodeoxygenation performance. First-principles ...
View more >Hydrogenation and hydrodeoxygenation are significant and distinct approaches for the conversion of biomass and biomass-derived oxygenated chemicals into high value-added chemicals and fuels. However, it remains a great challenge to synthesize catalysts that simultaneously possess excellent hydrogenation and hydrodeoxygenation performance. Herein, we report a catalyst made of isolated single-atom Ru supported on mesoporous graphitic carbon nitride (Ru1/mpg-C3N4), fabricated by a wet impregnation method. The as-prepared Ru1/mpg-C3N4 catalyst shows excellent hydrogenation and hydrodeoxygenation performance. First-principles calculations reveal that the Ru atom is mobilized, and the active site is induced by adsorption of the reactants. A systematic reaction mechanism is proposed, suggesting that vanillyl alcohol is the deoxygenation prohibited product, while 2-methoxy-p-cresol is the deoxygenation allowed product. Thus, the excellent selectivity for the hydrogenation or hydrodeoxygenation of vanillin at different temperatures results from switching between the two types of products.
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View more >Hydrogenation and hydrodeoxygenation are significant and distinct approaches for the conversion of biomass and biomass-derived oxygenated chemicals into high value-added chemicals and fuels. However, it remains a great challenge to synthesize catalysts that simultaneously possess excellent hydrogenation and hydrodeoxygenation performance. Herein, we report a catalyst made of isolated single-atom Ru supported on mesoporous graphitic carbon nitride (Ru1/mpg-C3N4), fabricated by a wet impregnation method. The as-prepared Ru1/mpg-C3N4 catalyst shows excellent hydrogenation and hydrodeoxygenation performance. First-principles calculations reveal that the Ru atom is mobilized, and the active site is induced by adsorption of the reactants. A systematic reaction mechanism is proposed, suggesting that vanillyl alcohol is the deoxygenation prohibited product, while 2-methoxy-p-cresol is the deoxygenation allowed product. Thus, the excellent selectivity for the hydrogenation or hydrodeoxygenation of vanillin at different temperatures results from switching between the two types of products.
View less >
Journal Title
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume
140
Issue
36
Subject
Chemical sciences