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Issue 5, 2015
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CO2 methanation over heterogeneous catalysts: recent progress and future prospects

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Abstract

Catalytic approaches for CO2 fixation can play an important role, because CO2 can be artificially converted into reusable chemicals. Among the catalytic reactions of CO2, hydrogenation of CO2, the so-called methanation reaction, is a suitable technique for the fixation of CO2. This technique can be used to convert exhausted CO2 into methane (CH4), which can be recycled for use as a fuel or a chemical as well as by contributing to the reduction of CO2 emissions. Heterogeneous catalysts have been used to hydrogenate CO2 to methane. Heterogeneous catalysts are preferable to homogenous catalysts in terms of stability, separation, handling, and reuse, which reflects in lower costs for large-scale production. Significant progress has been made in this direction, the exploitation of novel heterogeneous catalysts. In this review, we discussed recent developments in this area, with emphases on catalytic reactivity and its physicochemical properties and reaction mechanism. Apart from materials aspects and catalytic performance, we also discuss fundamental strategies for the rational design of materials for effective transformation of CO2 to methane with the help of H2 and power sources.

Graphical abstract: CO2 methanation over heterogeneous catalysts: recent progress and future prospects

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Publication details

The article was received on 19 Jan 2015, accepted on 06 Mar 2015 and first published on 06 Mar 2015


Article type: Critical Review
DOI: 10.1039/C5GC00119F
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Green Chem., 2015,17, 2647-2663

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    CO2 methanation over heterogeneous catalysts: recent progress and future prospects

    M. A. A. Aziz, A. A. Jalil, S. Triwahyono and A. Ahmad, Green Chem., 2015, 17, 2647
    DOI: 10.1039/C5GC00119F

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