Characterization and catalytic properties of nickel-substituted hexagonal mesoporous silica prepared by microwave-hydrothermal method
Identifieur interne : 000291 ( Main/Exploration ); précédent : 000290; suivant : 000292Characterization and catalytic properties of nickel-substituted hexagonal mesoporous silica prepared by microwave-hydrothermal method
Auteurs : K. Bachari [Algérie] ; R. M. Guerroudj [Algérie]Source :
- Comptes rendus. Chimie [ 1631-0748 ] ; 2012.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Nickel.
English descriptors
- KwdEn :
Abstract
The liquid phase of acetylation of 1,2-dimethoxybenzene with acetic anhydride has been investigated over a series of acid nickel-mesoporous materials (Ni-MCM-41) synthesized by the microwave irradiation method with different Si/Ni ratios (Si/Ni=80, 50, 10) and characterized by several spectroscopic techniques such as: N2 physical adsorption, ICP, XRD, TEM, FT-IR, and a temperature programmed desorption (TPD) of pyridine. In fact, the catalyst Ni-MCM-41 (10) showed better performance in the acid-catalyzed acetylation of 1,2-dimethoxybenzene employing acetic anhydride as an acylating agent. Furthermore, the kinetics of the acetylation of 1,2-dimethoxybenzene over these catalysts have also been investigated.
Affiliations:
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Le document en format XML
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Guerroudj</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Centre de recherche scientifique et technique en analyses physico-chimiques (C.R.AP.C), BP 248, Alger RP</s1><s2>16004 Alger</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Algérie</country><placeName><settlement type="city">Alger</settlement><region nuts="2">Wilaya d'Alger</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">12-0268953</idno><date when="2012">2012</date><idno type="stanalyst">PASCAL 12-0268953 INIST</idno><idno type="RBID">Pascal:12-0268953</idno><idno type="wicri:Area/PascalFrancis/Corpus">000092</idno><idno type="wicri:Area/PascalFrancis/Curation">000349</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000101</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000101</idno><idno type="wicri:doubleKey">1631-0748:2012:Bachari K:characterization:and:catalytic</idno><idno type="wicri:Area/Main/Merge">000298</idno><idno type="wicri:Area/Main/Curation">000291</idno><idno type="wicri:Area/Main/Exploration">000291</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Characterization and catalytic properties of nickel-substituted hexagonal mesoporous silica prepared by microwave-hydrothermal method</title><author><name sortKey="Bachari, K" sort="Bachari, K" uniqKey="Bachari K" first="K." last="Bachari">K. Bachari</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Centre de recherche scientifique et technique en analyses physico-chimiques (C.R.AP.C), BP 248, Alger RP</s1><s2>16004 Alger</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Algérie</country><placeName><settlement type="city">Alger</settlement><region nuts="2">Wilaya d'Alger</region></placeName></affiliation></author><author><name sortKey="Guerroudj, R M" sort="Guerroudj, R M" uniqKey="Guerroudj R" first="R. M." last="Guerroudj">R. M. Guerroudj</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Centre de recherche scientifique et technique en analyses physico-chimiques (C.R.AP.C), BP 248, Alger RP</s1><s2>16004 Alger</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Algérie</country><placeName><settlement type="city">Alger</settlement><region nuts="2">Wilaya d'Alger</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Comptes rendus. Chimie</title><title level="j" type="abbreviated">C. r., Chim.</title><idno type="ISSN">1631-0748</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Comptes rendus. Chimie</title><title level="j" type="abbreviated">C. r., Chim.</title><idno type="ISSN">1631-0748</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acetic anhydride</term><term>Acetylation</term><term>Catalytic reaction</term><term>Characterization</term><term>Heterogeneous catalysis</term><term>Hydrothermal condition</term><term>Infrared spectrometry</term><term>Mesoporosity</term><term>Microwave</term><term>Nickel</term><term>Porous material</term><term>Pyridine</term><term>Silica</term><term>Thermodesorption</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Caractérisation</term><term>Réaction catalytique</term><term>Nickel</term><term>Mésoporosité</term><term>Matériau poreux</term><term>Silice</term><term>Hyperfréquence</term><term>Condition hydrothermale</term><term>Spectrométrie IR</term><term>Thermodésorption</term><term>Pyridine</term><term>Acétylation</term><term>Catalyse hétérogène</term><term>Acétique anhydride</term><term>SiO2</term><term>MCM-41</term><term>Benzène(1,2-diméthoxy)</term><term>Acétophénone(3,4-diméthoxy)</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Nickel</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The liquid phase of acetylation of 1,2-dimethoxybenzene with acetic anhydride has been investigated over a series of acid nickel-mesoporous materials (Ni-MCM-41) synthesized by the microwave irradiation method with different Si/Ni ratios (Si/Ni=80, 50, 10) and characterized by several spectroscopic techniques such as: N<sub>2</sub> physical adsorption, ICP, XRD, TEM, FT-IR, and a temperature programmed desorption (TPD) of pyridine. In fact, the catalyst Ni-MCM-41 (10) showed better performance in the acid-catalyzed acetylation of 1,2-dimethoxybenzene employing acetic anhydride as an acylating agent. Furthermore, the kinetics of the acetylation of 1,2-dimethoxybenzene over these catalysts have also been investigated.</div></front></TEI><affiliations><list><country><li>Algérie</li></country><region><li>Wilaya d'Alger</li></region><settlement><li>Alger</li></settlement></list><tree><country name="Algérie"><region name="Wilaya d'Alger"><name sortKey="Bachari, K" sort="Bachari, K" uniqKey="Bachari K" first="K." last="Bachari">K. Bachari</name></region><name sortKey="Guerroudj, R M" sort="Guerroudj, R M" uniqKey="Guerroudj R" first="R. M." last="Guerroudj">R. M. Guerroudj</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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