Synthesis of higher alcohols from CO2 hydrogenation over a PtRu/Fe2O3 catalyst under supercritical condition

Zhenhong He; Qingli Qian; Zhaofu Zhang; Qinglei Meng; Huacong Zhou; Zhiwei Jiang; Buxing Han

doi:10.1098/rsta.2015.0006

Synthesis of higher alcohols from CO2 hydrogenation over a PtRu/Fe2O3 catalyst under supercritical condition

Philos Trans A Math Phys Eng Sci. 2015 Dec 28;373(2057):20150006. doi: 10.1098/rsta.2015.0006.

Authors

Zhenhong He¹, Qingli Qian¹, Zhaofu Zhang¹, Qinglei Meng¹, Huacong Zhou¹, Zhiwei Jiang¹, Buxing Han²

Affiliations

¹ Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
² Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China hanbx@iccas.ac.cn.

PMID: 26574526
DOI: 10.1098/rsta.2015.0006

Abstract

Hydrogenation of CO(2) to alcohols is of great importance, especially when producing higher alcohols. In this work, we synthesized heterogeneous PtRu/Fe(2)O(3), in which the Pt and Ru bimetallic catalysts were supported on Fe(2)O(3). The catalyst was used to catalyse CO(2) hydrogenation to alcohols. It was demonstrated that the activity and selectivity could be tuned by the bimetallic composition, and the catalyst with a Pt to Ru molar ratio of 1:2 (Pt(1)Ru(2)/Fe(2)O(3)) had high activity and selectivity at 200°C, which is very low for heterogeneous hydrogenation of CO(2) to produce higher alcohols. The conversion and the selectivity increased with increasing pressures of CO(2) and/or H(2). The catalyst could be reused at least five times without any obvious change in activity or selectivity.

Keywords: CO2 hydrogenation; bimetallic catalysis; higher alcohols.