Catalyst deactivation for enhancement of ...
Document type :
Article dans une revue scientifique: Article original
DOI :
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Title :
Catalyst deactivation for enhancement of selectivity in alcohols amination to primary amines
Author(s) :
Niu, Feng [Auteur]
Xie, Shaohua [Auteur]
Bahri, Mounib [Auteur]
Ersen, Ovidiu [Auteur]
Yang, Zhen [Auteur]
Kusema, Bright T. [Auteur]
Pera-Titus, Marc [Auteur]
Khodakov, Andrei [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Ordomsky, Vitaly [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Xie, Shaohua [Auteur]
Bahri, Mounib [Auteur]
Ersen, Ovidiu [Auteur]
Yang, Zhen [Auteur]
Kusema, Bright T. [Auteur]
Pera-Titus, Marc [Auteur]
Khodakov, Andrei [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Ordomsky, Vitaly [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Journal title :
ACS Catalysis
Abbreviated title :
ACS Catal.
Volume number :
9
Pages :
5986-5997
Publication date :
2019-07-01
ISSN :
2155-5435
Keyword(s) :
primary amines
pretreatment
carbon deposition
amination
selectivity
pretreatment
carbon deposition
amination
selectivity
HAL domain(s) :
Chimie/Catalyse
English abstract : [en]
Selective synthesis of valuable primary amines is an important target in modern industry. Amination of alcohols with ammonia is an economically efficient and environmentally friendly process for primary amine synthesis. ...
Show more >Selective synthesis of valuable primary amines is an important target in modern industry. Amination of alcohols with ammonia is an economically efficient and environmentally friendly process for primary amine synthesis. This consecutive reaction yields a mixture of primary, secondary, and tertiary amines. High selectivity to primary amines is an important challenge of alcohol amination. Carbon deposition on the catalyst surface is conventionally considered an undesirable process, which leads to poor catalytic performance. In this paper, carbon deposition produced by catalyst pretreatment with alcohols under the optimized conditions has been employed for major enhancement of the selectivity of alcohol amination to primary amines (from 30 to 50 to 80–90%). This extremely positive effect of carbon deposition on the amination selectivity arises from steric hindrance in hydrogenation of bulky secondary imines as intermediate products over partially carbon-decorated cobalt nanoparticles.Show less >
Show more >Selective synthesis of valuable primary amines is an important target in modern industry. Amination of alcohols with ammonia is an economically efficient and environmentally friendly process for primary amine synthesis. This consecutive reaction yields a mixture of primary, secondary, and tertiary amines. High selectivity to primary amines is an important challenge of alcohol amination. Carbon deposition on the catalyst surface is conventionally considered an undesirable process, which leads to poor catalytic performance. In this paper, carbon deposition produced by catalyst pretreatment with alcohols under the optimized conditions has been employed for major enhancement of the selectivity of alcohol amination to primary amines (from 30 to 50 to 80–90%). This extremely positive effect of carbon deposition on the amination selectivity arises from steric hindrance in hydrogenation of bulky secondary imines as intermediate products over partially carbon-decorated cobalt nanoparticles.Show less >
Language :
Anglais
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Collections :
Research team(s) :
Catalyse pour l’énergie et la synthèse de molécules plateforme (CEMOP)
Submission date :
2022-03-02T07:13:58Z
2024-01-16T09:25:13Z
2024-01-16T09:25:13Z