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Pd/NbOPO 4 Multifunctional Catalyst for the Direct Production of Liquid Alkanes from Aldol Adducts of Furans
Author(s) -
Xia QiNeng,
Cuan Qian,
Liu XiaoHui,
Gong XueQing,
Lu GuanZhong,
Wang YanQin
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201403440
Subject(s) - hydrodeoxygenation , chemistry , furan , catalysis , aldol reaction , adduct , organic chemistry , octane , alkene , bond cleavage , selectivity
Great efforts have been made to convert renewable biomass into transportation fuels. Herein, we report the novel properties of NbO x ‐based catalysts in the hydrodeoxygenation of furan‐derived adducts to liquid alkanes. Excellent activity and stability were observed with almost no decrease in octane yield (>90 % throughout) in a 256 h time‐on‐stream test. Experimental and theoretical studies showed that NbO x species play the key role in CO bond cleavage. As a multifunctional catalyst, Pd/NbOPO 4 plays three roles in the conversion of aldol adducts into alkanes: 1) The noble metal (in this case Pd) is the active center for hydrogenation; 2) NbO x species help to cleave the CO bond, especially of the tetrahydrofuran ring; and 3) a niobium‐based solid acid catalyzes the dehydration, thus enabling the quantitative conversion of furan‐derived adducts into alkanes under mild conditions.