Sm-promoted alumina supported Ru catalysts for ammonia synthesis: Effect of the preparation method and Sm promoter - Details

author：

Lin, B. (Lin, B..) ^[1] | Wang, R. (Wang, R..) ^[2] | Lin, J. (Lin, J..) ^[3] | Ni, J. (Ni, J..) ^[4] | Wei, K. (Wei, K..) ^[5]

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Scopus

Abstract：

Sm　promoted　Ru/Al2O3　catalysts　were　prepared　by　different　preparation　methods.　The　samples　were　characterized　by　XRF,　TEM,　CO　chemisorption　and　H2-TPD.　It　is　found　that　chlorine-free　Ru/Al　2O3　catalyst　could　be　prepared　by　precipitation　method.　The　presence　of　residual　chlorine　restricted　the　adsorbed　hydrogen,　which　corresponded　to　the　desorption　peak　in　the　temperature　range　of　150　to　325　°C.　The　addition　of　Sm　significantly　decreased　the　amount　of　adsorbed　hydrogen.　Sm　promoted　the　precipitated　Ru/Al2O3　catalysts　showed　higher　ammonia　synthesis　activities　than　those　samples　obtained　by　hydrogen　treatment　or　hydrazine　reduction.　The　activity　of　Sm　promoted　Ru/Al2O3　catalysts　increased　up　to　a　certain　value　and　then　decreased　with　the　increase　in　Sm　loading.　©　2010　Elsevier　B.V.　All　rights　reserved.

Keyword：

Alumina supported Ru catalysts; Ammonia synthesis; Chlorine-free; Hydrogen temperature-programmed desorption; Sm

Community：

[ 1 ] [Lin, B.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, 523 Gongye Road, Fuzhou, Fujian 350002, China
[ 2 ] [Wang, R.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, 523 Gongye Road, Fuzhou, Fujian 350002, China
[ 3 ] [Lin, J.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, 523 Gongye Road, Fuzhou, Fujian 350002, China
[ 4 ] [Ni, J.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, 523 Gongye Road, Fuzhou, Fujian 350002, China
[ 5 ] [Wei, K.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, 523 Gongye Road, Fuzhou, Fujian 350002, China

Reprint 's Address：

[Wang, R.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, 523 Gongye Road, Fuzhou, Fujian 350002, China

Email：

rwang@fzu.edu.cn

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Source ：

Catalysis Communications

ISSN： 1566-7367

Year： 2011

Issue： 6

Volume： 12

Page： 553-558

2 . 9 8 6

JCR@2011

3 . 4 0 0

JCR@2023

JCR Journal Grade：2

CAS Journal Grade：3

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 34

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 1

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