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Fine Tuning the Composition and Nanostructure of Fe‐Based Core–Shell Nanocatalyst for Efficient CO 2 Hydrogenation
Author(s) -
Gupta Sharad,
Jain Vivek K.,
Jagadeesan Dinesh
Publication year - 2016
Publication title -
chemnanomat
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.947
H-Index - 32
ISSN - 2199-692X
DOI - 10.1002/cnma.201600234
Subject(s) - nanostructure , catalysis , carbon fibers , materials science , chemical engineering , shell (structure) , composition (language) , selectivity , coating , core (optical fiber) , nanotechnology , chemistry , organic chemistry , composite material , linguistics , philosophy , composite number , engineering
Hydrogenation of CO 2 to hydrocarbons is one of the crucial technologies to address the energy deficit and increasing environmental pollution. In this work, we have synthesized and systematically studied the influence of composition and nanostructure of a Fe‐based, carbon‐coated core–shell nanocatalyst. The synthesis method offered good control over the thickness of the carbon coating in the core–shell catalyst, which in turn controlled the chemical composition of the core. The results emphasized an optimal amount of Fe 3 O 4 , Fe 5 C 2 in the core and partially graphitized carbon in the shell for a high catalytic activity in the conversion of CO 2 at atmospheric pressure with higher selectivity to C 2 ‐C 4 olefins.