Effect of ceria morphology on the catalytic activity of Co/CeO2 catalyst for ammonia synthesis - Details

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Abstract：

A　series　of　Co/CeO2　catalysts　with　different　morphology　of　CeO2　support　were　prepared.　It　was　shown　that　part　of　Co　species　could　be　introduced　into　the　CeO2　lattice　and　thus　a　new　Co[sbnd]O　bonding　would　be　created　for　the　ceria-supported　Co　catalysts.　The　morphology　of　CeO2　was　found　to　affect　the　reduction　of　both　the　cobalt　oxides　and　CeO2.　A　larger　amount　of　CeO2　was　reduced　in　the　case　of　Co　supported　on　polyhedral　CeO2.　Catalytic　tests　showed　that　the　higher　concentration　of　Ce3　+　and　the　lower　binding　energy　of　Co　species　present　in　the　catalyst　are　key　factors　that　led　to　higher　ammonia　synthesis　rates　for　the　Co/CeO2　catalysts.　©　2017

Keyword：

Ammonia synthesis; Ce3 + concentration; Ceria morphology; Co/CeO2 catalyst

Community：

[ 1 ] [Lin, B.]National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350002, China
[ 2 ] [Liu, Y.]National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350002, China
[ 3 ] [Heng, L.]National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350002, China
[ 4 ] [Ni, J.]National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350002, China
[ 5 ] [Lin, J.]National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350002, China
[ 6 ] [Jiang, L.]National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350002, China

Reprint 's Address：

[Jiang, L.]National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou UniversityChina

Email：

jll@fzu.edu.cn

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Source ：

Catalysis Communications

ISSN： 1566-7367

Year： 2017

Volume： 101

Page： 15-19

3 . 4 6 3

JCR@2017

3 . 4 0 0

JCR@2023

ESI HC Threshold：226

JCR Journal Grade：2

CAS Journal Grade：3

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 63

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 1

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