期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 2, 期 7, 页码 1819-1827出版社
AMER CHEMICAL SOC
DOI: 10.1021/sc5001463
关键词
Hydrogenolysis; Cellulose; n-Hexane; Iridium; Zeolite
资金
- Cabinet Office, Government of Japan
- China Scholarship Council (CSC)
One-pot conversion of cellulose to n-hexane was carried out over the Ir-ReOx/SiO2 (Re/Ir = 2) catalyst combined with HZSM-5 as cocatalyst in a biphasic reaction system (n-dodecane + H2O). The yield of n-hexane reached 83% from ball-milled cellulose and 78% from microcrystalline cellulose. Even using a high weight ratio of cellulose to water (1:1), a 71% yield of n-hexane could be obtained from ball-milled cellulose. The yield of n-hexane was almost maintained during three repeated tests when the catalyst was calcined again. The transformation of cellulose to n-hexane consists of the hydrolysis of cellulose to glucose via water-soluble oligosaccharides, hydrogenation of glucose to sorbitol, and successive hydrogenolysis of sorbitol to n-hexane. The Ir-ReOx/SiO2 catalyst promotes a hydrogenation and hydrogenolysis step. HZSM-5 enhanced the hydrolysis of cellulose in hot water and C-O bond hydrogenolysis activity of the Ir-ReOx/SiO2 catalyst.
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