NickelMaghrebV1, Main, Exploration, bibRecord, 000576

Steam reforming of methane on nickel aluminate defined structures with high Al/Ni ratio

Identifieur interne : 000576 ( Main/Exploration ); précédent : 000575; suivant : 000577

Steam reforming of methane on nickel aluminate defined structures with high Al/Ni ratio

Auteurs : Nassima Salhi [Algérie] ; Corinne Petit [France] ; Alain Kiennemann [France]

Source :

Studies in surface science and catalysis [ 0167-2991 ] ; 2008.

RBID : Pascal:09-0027780

Descripteurs français

Pascal (Inist)
- Reformage vapeur, Méthane, Aluminate de nickel, Structure, Liquide, Précurseur, Catalyseur, Diffraction RX, Microscopie électronique transmission, Réduction chimique, Alumine, Oxyde d'aluminium, Composé binaire, Haute température, Particule, Hydrogène, Atmosphère, Al2O3, Al O.
Wicri :
- topic : Hydrogène, Atmosphère.

English descriptors

KwdEn :
- Alumina, Aluminium oxide, Atmosphere, Binary compound, Catalyst, Chemical reduction, High temperature, Hydrogen, Liquid, Methane, Nickel aluminate, Particle, Precursor, Steam reforming, Structure, Transmission electron microscopy, X ray diffraction.

Abstract

A series of several defined structures Ni_xAl_yO_z with an atomic ratio Al/Ni from 9 to 32 (Ni₂Al₁₈O₂₉,NiAl₁₀O₁₆, NiAl₂₆O₄₀ and NiAl₃₂O₄₉) (wt %Ni from 10.9 to 3.4) were prepared by the method of the liquid precursor and calcined at 900°Cduring 4 hours. The catalysts were characterized by XRD, TEM, BET and TPR. By XRD, all the phases expected have been obtained, however, for all the catalysts, the characteristic main phase is often mixed with minors phases (e.g NiAl₃₂O₄₉). For NiAl₂₆O₄₀ and NiAl₃₂O₄₉, the characterised minor phases are NiAl₁₀O₁₆ and Ni₂Al₁₈O₂₉. By TPR, reduction of all the catalysts into Ni° and formation of Al₂O₃ occur at high temperatures (between 825 and 875°C).TEM shows Ni particles finely dispersed (<10nm). The defined structures, after reduction at high temperature (800°C, 1h) under hydrogen atmosphere were successfully tested in steam reforming of methane.

Affiliations:

Links toward previous steps (curation, corpus...)

to stream PascalFrancis, to step Corpus: 000213
to stream PascalFrancis, to step Curation: 000228
to stream PascalFrancis, to step Checkpoint: 000210
to stream Main, to step Merge: 000592
to stream Main, to step Curation: 000576

Le document en format XML

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<author><name sortKey="Salhi, Nassima" sort="Salhi, Nassima" uniqKey="Salhi N" first="Nassima" last="Salhi">Nassima Salhi</name>
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<author><name sortKey="Salhi, Nassima" sort="Salhi, Nassima" uniqKey="Salhi N" first="Nassima" last="Salhi">Nassima Salhi</name>
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<author><name sortKey="Petit, Corinne" sort="Petit, Corinne" uniqKey="Petit C" first="Corinne" last="Petit">Corinne Petit</name>
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<sZ>2 aut.</sZ>
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<country>France</country>
<placeName><region type="region" nuts="2">Grand Est</region>
<region type="old region" nuts="2">Alsace (région administrative)</region>
<settlement type="city">Strasbourg</settlement>
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</affiliation>
</author>
<author><name sortKey="Kiennemann, Alain" sort="Kiennemann, Alain" uniqKey="Kiennemann A" first="Alain" last="Kiennemann">Alain Kiennemann</name>
<affiliation wicri:level="3"><inist:fA14 i1="02"><s1>LMSPC UMR CNRS 7515, ECPM 25, rue Becquerel</s1>
<s2>67087 Strasbourg</s2>
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<sZ>2 aut.</sZ>
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<term>Aluminium oxide</term>
<term>Atmosphere</term>
<term>Binary compound</term>
<term>Catalyst</term>
<term>Chemical reduction</term>
<term>High temperature</term>
<term>Hydrogen</term>
<term>Liquid</term>
<term>Methane</term>
<term>Nickel aluminate</term>
<term>Particle</term>
<term>Precursor</term>
<term>Steam reforming</term>
<term>Structure</term>
<term>Transmission electron microscopy</term>
<term>X ray diffraction</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Reformage vapeur</term>
<term>Méthane</term>
<term>Aluminate de nickel</term>
<term>Structure</term>
<term>Liquide</term>
<term>Précurseur</term>
<term>Catalyseur</term>
<term>Diffraction RX</term>
<term>Microscopie électronique transmission</term>
<term>Réduction chimique</term>
<term>Alumine</term>
<term>Oxyde d'aluminium</term>
<term>Composé binaire</term>
<term>Haute température</term>
<term>Particule</term>
<term>Hydrogène</term>
<term>Atmosphère</term>
<term>Al2O3</term>
<term>Al O</term>
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<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Hydrogène</term>
<term>Atmosphère</term>
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<front><div type="abstract" xml:lang="en">A series of several defined structures Ni<sub>x</sub>
Al<sub>y</sub>
O<sub>z</sub>
 with an atomic ratio Al/Ni from 9 to 32 (Ni<sub>2</sub>
Al<sub>18</sub>
O<sub>29</sub>
,NiAl<sub>10</sub>
O<sub>16</sub>
, NiAl<sub>26</sub>
O<sub>40</sub>
 and NiAl<sub>32</sub>
O<sub>49</sub>
) (wt %Ni from 10.9 to 3.4) were prepared by the method of the liquid precursor and calcined at 900°Cduring 4 hours. The catalysts were characterized by XRD, TEM, BET and TPR. By XRD, all the phases expected have been obtained, however, for all the catalysts, the characteristic main phase is often mixed with minors phases (e.g NiAl<sub>32</sub>
O<sub>49</sub>
). For NiAl<sub>26</sub>
O<sub>40</sub>
 and NiAl<sub>32</sub>
O<sub>49</sub>
, the characterised minor phases are NiAl<sub>10</sub>
O<sub>16</sub>
 and Ni<sub>2</sub>
Al<sub>18</sub>
O<sub>29</sub>
. By TPR, reduction of all the catalysts into Ni° and formation of Al<sub>2</sub>
O<sub>3</sub>
 occur at high temperatures (between 825 and 875°C).TEM shows Ni particles finely dispersed (<10nm). The defined structures, after reduction at high temperature (800°C, 1h) under hydrogen atmosphere were successfully tested in steam reforming of methane.</div>
</front>
</TEI>
<affiliations><list><country><li>Algérie</li>
<li>France</li>
</country>
<region><li>Alsace (région administrative)</li>
<li>Grand Est</li>
</region>
<settlement><li>Strasbourg</li>
</settlement>
</list>
<tree><country name="Algérie"><noRegion><name sortKey="Salhi, Nassima" sort="Salhi, Nassima" uniqKey="Salhi N" first="Nassima" last="Salhi">Nassima Salhi</name>
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<country name="France"><region name="Grand Est"><name sortKey="Petit, Corinne" sort="Petit, Corinne" uniqKey="Petit C" first="Corinne" last="Petit">Corinne Petit</name>
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<name sortKey="Kiennemann, Alain" sort="Kiennemann, Alain" uniqKey="Kiennemann A" first="Alain" last="Kiennemann">Alain Kiennemann</name>
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Steam reforming of methane on nickel aluminate defined structures with high Al/Ni ratio

Steam reforming of methane on nickel aluminate defined structures with high Al/Ni ratio

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri