Effect of barium and potassium promoter on Co/CeO2 catalysts in ammonia synthesis - Details

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Abstract：

The　Co/CeO2　catalysts　promoted　with　Ba　or　K　were　prepared　to　study　the　effect　of　promoter　on　the　catalytic　performance　of　ammonia　synthesis.　The　results　show　that　the　presence　of　Ba　or　K　promoter　changes　the　properties　of　CeO2-supported　Co　catalysts　including　the　surface　area,　the　crystallite　size　and　the　morphology　of　CeO2,　the　reduction　degree　of　cobalt　species　and　the　adsorption　performance　of　hydrogen　and　nitrogen.　As　a　consequence,　the　samples　promoted　with　an　appropriate　amount　of　Ba　show　higher　ammonia　synthesis　rates,　while　the　catalysts　with　high　Ba　loading　or　K　promoter　all　exhibit　low　catalytic　activities.　©　2018　Chinese　Society　of　Rare　Earths

Keyword：

Ammonia synthesis; Barium; Co/CeO2 catalyst; Potassium; Promoter; Rare earths

Community：

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

Reprint 's Address：

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

Email：

jll@fzu.edu.cn

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Source ：

Journal of Rare Earths

ISSN： 1002-0721

Year： 2018

Issue： 7

Volume： 36

Page： 703-707

2 . 8 4 6

JCR@2018

5 . 2 0 0

JCR@2023

ESI HC Threshold：209

JCR Journal Grade：2

CAS Journal Grade：3

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 37

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 2

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