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Cu–Co Alloy Nano‐particles supported on SiO 2 and modified by La and Y for Ethanol Synthesis from Syngas
Author(s) -
Hong Ying,
Yang Qilei,
Kang Na,
Liu Guilong,
Ma Zhi,
Liu Yuan
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201701742
Subject(s) - bimetallic strip , syngas , catalysis , crystallite , cobalt , copper , materials science , chemical engineering , alloy , perovskite (structure) , nanoparticle , metallurgy , nanotechnology , chemistry , metal , organic chemistry , engineering
Cu−Co based catalysts for ethanol synthesis (ES) directly from syngas requires that copper and cobalt should be in alloy state or in close contact with each other, the chemical state of the bimetallic Cu−Co should be tailored by more than one additives and the group composed of Cu−Co and the additives should be loaded on a support with high surface area. In this work, a strategy for design and preparing such kind of complex catalysts was proposed, by means of loading nano crystallites of La 1‐x Y x Co 1‐y Cu y O 3 with perovskite phase on SiO 2 and then reducing La 1‐x Y x Co 1‐y Cu y O 3 /SiO 2 . In a nano crystallite of La 1‐x Y x Co 1‐y Cu y O 3 , the ions of copper and cobalt are uniformly mixed at the atomic level and confined in the nano space, favoring the interaction between the reduced products of Cu, Co, La 2 O 3 and Y 2 O 3 . Thus, prepared catalyst showed very good catalytic performance for ES. This preparation strategy should be extendable.