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论文类型：期刊论文

发表时间：2016-03-01

发表刊物：CHEMISTRYSELECT

收录刊物：SCIE

卷号：1

期号：3

页面范围：577-584

ISSN号：2365-6549

关键字：Biomass; Layered compounds; Supported catalysts; Anisole; Hydrodeoxygenation

摘要：The catalytic performance of Ni/Al2O3 catalysts derived from layered double hydroxide precursors with nickel ions incorporated into the brucite-like layers was investigated for the hydrodeoxygenation (HDO) of anisole as a model compound of the lignin. Upon calcination and subsequent reduction, the well-crystallized phase and highly dispersed Ni nanoparticles (3 similar to 10 nm) on the support were obtained. The catalysts exhibited high activity toward the hydrogenolysis of C-O bonds and the hydrogenation saturation of aromatic ring at low temperature (200-280 degrees C) and appropriate hydrogen pressure (2 MPa). The activity and selectivity of these two main reaction pathways of anisole conversion were independent of the Ni content. And the direct cleavage of C-aromatic-O bond of anisole forming benzene as another parallel pathway prevails at increasing temperature. In addition, the catalysts are highly resistant to coking and easy to be reactivated by the utilization of the layered double hydroxide precursors.