Electronic metal-support interaction enhanced ammonia decomposition efficiency of perovskite oxide supported ruthenium - Details

author：

Indexed by：

Scopus

Abstract：

Ammonia　has　been　considered　as　a　promising　hydrogen　carrier　with　high　energy　storage　density　and　easy　transport.　Here,　we　report　the　ruthenium　(Ru)　nanoparticles　supported　on　LaAlO3,　a　typical　ABO3　perovskite　oxide,　as　an　efficient　catalyst　for　ammonia　decomposition.　By　tailoring　the　cation　substitution　of　La3+　by　Sr2+,　the　electronic　properties　of　support　materials　were　modulated,　which　exerts　an　impact　on　the　electronic　state　of　Ru　active　sites.　It　is　found　that　the　Ru/La0.8Sr0.2AlO3　catalyst　has　a　high　hydrogen　formation　rate　and　low　activation　energy.　In　situ　spectroscopic　investigation　and　NH3　temperature　programmed　desorption　(NH3-TPD)　analyses　indicate　the　electron-rich　state　of　metallic　Ru　on　the　La0.8Sr0.2AlO3　support,　which　promotes　associative　desorption　of　N　atoms　and　accelerates　NH3　decomposition　reactions.　This　study　provides　a　universal　strategy　of　aliovalent　cation　substitution　to　engineer　the　electronic　properties　of　metal/oxide　catalysts　as　well　as　their　catalytic　activities.　©　2022　Elsevier　Ltd

Keyword：

ABO3 perovskite oxides; Aliovalent cation substitution; Ammonia decomposition; Hydrogen production

Community：

[ 1 ] [Cao, C.-F.]College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 2 ] [Cao, C.-F.]National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
[ 3 ] [Wu, K.]National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
[ 4 ] [Zhou, C.]National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
[ 5 ] [Yao, Y.-H.]National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
[ 6 ] [Luo, Y.]National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
[ 7 ] [Chen, C.-Q.]National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
[ 8 ] [Lin, L.]National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
[ 9 ] [Jiang, L.]National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China

Reprint 's Address：

[Zhou, C.]National Engineering Research Center of Chemical Fertilizer Catalyst, China

Email：

chen.zhou@fzu.edu.cn

Show more details

Related Keywords：

Source ：

Chemical Engineering Science

ISSN： 0009-2509

Year： 2022

Volume： 257

4 . 7

JCR@2022

4 . 1 0 0

JCR@2023

ESI HC Threshold：74

JCR Journal Grade：2

CAS Journal Grade：2

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 32

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 5

Affiliated Colleges：

Get Fulltext

DOI Library Discovery Baidu Scholar Search SCOPUS

Type
Departments

All Years Choose Year From to