Enhancing surface activity in silicon microreactors : Use of black silicon and alumina as catalyst supports for chemical and biological applications
Identifieur interne : 000397 ( PascalFrancis/Corpus ); précédent : 000396; suivant : 000398Enhancing surface activity in silicon microreactors : Use of black silicon and alumina as catalyst supports for chemical and biological applications
Auteurs : Marilyne Roumanie ; Cyril Delattre ; Frédérique Mittler ; Gilles Marchand ; Valérie Meille ; Claude De Bellefon ; Christophe Pijolat ; Guy Tournier ; Patrick PouteauSource :
- Chemical engineering journal : (1996) [ 1385-8947 ] ; 2008.
Descripteurs français
- Pascal (Inist)
- Microréacteur, Support catalyseur, Catalyseur sur support, Réaction chimique, Production, Aire superficielle, Nanostructure, Microusinage, Suspension colloïdale, Réaction catalytique, Oxydation, Catalyse hétérogène, Pulvérisation irradiation, Porosité, Réaction enzymatique, Modélisation, Activité catalytique, Cinétique.
English descriptors
- KwdEn :
Abstract
When surface-supported chemical reactions are performed in microsystems, high production rate cannot be obtained due to the intrinsically low surface area. Increasing the active surface area of silicon microsystems is a challenge that is addressed in this paper using two original approaches: (i) modifying the structure of silicon by creating nanostructures (black silicon) using conventional etching processes of silicon micromachining or (ii) depositing a layer of porous γ-alurnina by washcoating a colloidal suspension of boehmite onto the silicon surface. The catalytic oxidation of carbon monoxide on platinum was chosen as a first test reaction in the domain of heterogeneous catalysis. In order to perform this reaction, platinum was either deposited by sputtering on silicon devices with black silicon nanostructuration, or impregnated inside the porosity of an alumina layer previously deposited on a silicon device. For specific biological applications, such as proteins analysis, some biological reactions could be advantageously achieved in microsystems using surface-supported species. As an example, an enzymatic reaction was carried out using silicon devices modified with black silicon nanostructuration and further functionalized with trypsin as a model enzyme. The catalytic activity was compared between silicon devices with the same two types of catalysts, comprising or not an enhancement of the surface activity. A minimum 10-fold increase in catalytic activity was estimated from kinetic measurements and represents the augmentation of the active surface really available for reactions. It was also shown how these catalytic materials were integrated in a microreactor increasing its catalytic active surface without modifying its global size.
Notice en format standard (ISO 2709)
Pour connaître la documentation sur le format Inist Standard.
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Format Inist (serveur)
NO : | PASCAL 08-0055193 INIST |
---|---|
ET : | Enhancing surface activity in silicon microreactors : Use of black silicon and alumina as catalyst supports for chemical and biological applications |
AU : | ROUMANIE (Marilyne); DELATTRE (Cyril); MITTLER (Frédérique); MARCHAND (Gilles); MEILLE (Valérie); DE BELLEFON (Claude); PIJOLAT (Christophe); TOURNIER (Guy); POUTEAU (Patrick); SCHÜTTE (Rüdiger); RENKEN (Albert); KLEMM (Elias); LIAUW (Marcel A.); MATLOSZ (Michael) |
AF : | Ecole des Mines de Saint Etienne, Centre SPIN, Dpt MICC, LPMG-UMR CNRS 5148, 58 Cours Fauriel/42023 Saint Etienne/France (1 aut., 7 aut., 8 aut.); Laboratoire d'Electronique et de Technologie de l'Information, CEA-LETI/DTBS, 17 rue Martyrs/38054 Grenoble/France (2 aut., 3 aut., 4 aut., 9 aut.); Laboratoire de Génie des Procédés Catalytiques, CNRS-CPE, 43 bd 11 novembre 1918, BP 2077/69616 Villeurbanne/France (5 aut., 6 aut.); Process Technology & Engineering, Evonik Degussa GmbH, Rodenbacher Chaussee 4/63457 Hanau (Wolfgang)/Allemagne (1 aut.); Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), SB-ISIC-LGRC-Station 6, Bâtiment CH / CH J2 500/1015 Lausanne/Suisse (2 aut.); Chemnitz University of Technology, Faculty of Natural Sciences, Department of Chemical Technology/09107 Chemnitz/Allemagne (3 aut.); Technical Chemistry and Reaction Engineering, ITMC, RWTH Aachen, Worringerweg 1/52074 Aachen/Allemagne (4 aut.); CNRS-ENSIC, Laboratoire des Sciences du Genie Chimique, 1, rue Grandville/54001 Nancy/France (5 aut.) |
DT : | Publication en série; Congrès; Niveau analytique |
SO : | Chemical engineering journal : (1996); ISSN 1385-8947; Pays-Bas; Da. 2008; Vol. 135; No. SUP1; S317-S326; Bibl. 29 ref. |
LA : | Anglais |
EA : | When surface-supported chemical reactions are performed in microsystems, high production rate cannot be obtained due to the intrinsically low surface area. Increasing the active surface area of silicon microsystems is a challenge that is addressed in this paper using two original approaches: (i) modifying the structure of silicon by creating nanostructures (black silicon) using conventional etching processes of silicon micromachining or (ii) depositing a layer of porous γ-alurnina by washcoating a colloidal suspension of boehmite onto the silicon surface. The catalytic oxidation of carbon monoxide on platinum was chosen as a first test reaction in the domain of heterogeneous catalysis. In order to perform this reaction, platinum was either deposited by sputtering on silicon devices with black silicon nanostructuration, or impregnated inside the porosity of an alumina layer previously deposited on a silicon device. For specific biological applications, such as proteins analysis, some biological reactions could be advantageously achieved in microsystems using surface-supported species. As an example, an enzymatic reaction was carried out using silicon devices modified with black silicon nanostructuration and further functionalized with trypsin as a model enzyme. The catalytic activity was compared between silicon devices with the same two types of catalysts, comprising or not an enhancement of the surface activity. A minimum 10-fold increase in catalytic activity was estimated from kinetic measurements and represents the augmentation of the active surface really available for reactions. It was also shown how these catalytic materials were integrated in a microreactor increasing its catalytic active surface without modifying its global size. |
CC : | 001D07H; 001C01A03B |
FD : | Microréacteur; Support catalyseur; Catalyseur sur support; Réaction chimique; Production; Aire superficielle; Nanostructure; Microusinage; Suspension colloïdale; Réaction catalytique; Oxydation; Catalyse hétérogène; Pulvérisation irradiation; Porosité; Réaction enzymatique; Modélisation; Activité catalytique; Cinétique |
ED : | Microreactor; Catalyst support; Supported catalyst; Chemical reaction; Production; Surface area; Nanostructure; Micromachining; Colloidal suspension; Catalytic reaction; Oxidation; Heterogeneous catalysis; Sputtering; Porosity; Enzymatic reaction; Modeling; Catalyst activity; Kinetics |
SD : | Microreactor; Soporte catalizador; Catalizador sobre soporte; Reacción química; Producción; Area superficial; Nanoestructura; Micromaquinado; Suspensión coloidal; Reacción catalítica; Oxidación; Catálisis heterogénea; Pulverización irradiación; Porosidad; Reacción enzimática; Modelización; Actividad catalítica; Cinética |
LO : | INIST-14678.354000173568260490 |
ID : | 08-0055193 |
Links to Exploration step
Pascal:08-0055193Le document en format XML
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Catalyst activity</term>
<term>Catalyst support</term>
<term>Catalytic reaction</term>
<term>Chemical reaction</term>
<term>Colloidal suspension</term>
<term>Enzymatic reaction</term>
<term>Heterogeneous catalysis</term>
<term>Kinetics</term>
<term>Micromachining</term>
<term>Microreactor</term>
<term>Modeling</term>
<term>Nanostructure</term>
<term>Oxidation</term>
<term>Porosity</term>
<term>Production</term>
<term>Sputtering</term>
<term>Supported catalyst</term>
<term>Surface area</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Microréacteur</term>
<term>Support catalyseur</term>
<term>Catalyseur sur support</term>
<term>Réaction chimique</term>
<term>Production</term>
<term>Aire superficielle</term>
<term>Nanostructure</term>
<term>Microusinage</term>
<term>Suspension colloïdale</term>
<term>Réaction catalytique</term>
<term>Oxydation</term>
<term>Catalyse hétérogène</term>
<term>Pulvérisation irradiation</term>
<term>Porosité</term>
<term>Réaction enzymatique</term>
<term>Modélisation</term>
<term>Activité catalytique</term>
<term>Cinétique</term>
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<front><div type="abstract" xml:lang="en">When surface-supported chemical reactions are performed in microsystems, high production rate cannot be obtained due to the intrinsically low surface area. Increasing the active surface area of silicon microsystems is a challenge that is addressed in this paper using two original approaches: (i) modifying the structure of silicon by creating nanostructures (black silicon) using conventional etching processes of silicon micromachining or (ii) depositing a layer of porous γ-alurnina by washcoating a colloidal suspension of boehmite onto the silicon surface. The catalytic oxidation of carbon monoxide on platinum was chosen as a first test reaction in the domain of heterogeneous catalysis. In order to perform this reaction, platinum was either deposited by sputtering on silicon devices with black silicon nanostructuration, or impregnated inside the porosity of an alumina layer previously deposited on a silicon device. For specific biological applications, such as proteins analysis, some biological reactions could be advantageously achieved in microsystems using surface-supported species. As an example, an enzymatic reaction was carried out using silicon devices modified with black silicon nanostructuration and further functionalized with trypsin as a model enzyme. The catalytic activity was compared between silicon devices with the same two types of catalysts, comprising or not an enhancement of the surface activity. A minimum 10-fold increase in catalytic activity was estimated from kinetic measurements and represents the augmentation of the active surface really available for reactions. It was also shown how these catalytic materials were integrated in a microreactor increasing its catalytic active surface without modifying its global size.</div>
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<inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>1385-8947</s0>
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<fA03 i2="1"><s0>Chem. eng. j. : (1996)</s0>
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<fA05><s2>135</s2>
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<fA06><s3>SUP1</s3>
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<fA08 i1="01" i2="1" l="ENG"><s1>Enhancing surface activity in silicon microreactors : Use of black silicon and alumina as catalyst supports for chemical and biological applications</s1>
</fA08>
<fA09 i1="01" i2="1" l="ENG"><s1>Microreaction Technology, IMRET 9: Proceedings of the Ninth International Conference on Microreaction Technology</s1>
</fA09>
<fA11 i1="01" i2="1"><s1>ROUMANIE (Marilyne)</s1>
</fA11>
<fA11 i1="02" i2="1"><s1>DELATTRE (Cyril)</s1>
</fA11>
<fA11 i1="03" i2="1"><s1>MITTLER (Frédérique)</s1>
</fA11>
<fA11 i1="04" i2="1"><s1>MARCHAND (Gilles)</s1>
</fA11>
<fA11 i1="05" i2="1"><s1>MEILLE (Valérie)</s1>
</fA11>
<fA11 i1="06" i2="1"><s1>DE BELLEFON (Claude)</s1>
</fA11>
<fA11 i1="07" i2="1"><s1>PIJOLAT (Christophe)</s1>
</fA11>
<fA11 i1="08" i2="1"><s1>TOURNIER (Guy)</s1>
</fA11>
<fA11 i1="09" i2="1"><s1>POUTEAU (Patrick)</s1>
</fA11>
<fA12 i1="01" i2="1"><s1>SCHÜTTE (Rüdiger)</s1>
<s9>ed.</s9>
</fA12>
<fA12 i1="02" i2="1"><s1>RENKEN (Albert)</s1>
<s9>ed.</s9>
</fA12>
<fA12 i1="03" i2="1"><s1>KLEMM (Elias)</s1>
<s9>ed.</s9>
</fA12>
<fA12 i1="04" i2="1"><s1>LIAUW (Marcel A.)</s1>
<s9>ed.</s9>
</fA12>
<fA12 i1="05" i2="1"><s1>MATLOSZ (Michael)</s1>
<s9>ed.</s9>
</fA12>
<fA14 i1="01"><s1>Ecole des Mines de Saint Etienne, Centre SPIN, Dpt MICC, LPMG-UMR CNRS 5148, 58 Cours Fauriel</s1>
<s2>42023 Saint Etienne</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>7 aut.</sZ>
<sZ>8 aut.</sZ>
</fA14>
<fA14 i1="02"><s1>Laboratoire d'Electronique et de Technologie de l'Information, CEA-LETI/DTBS, 17 rue Martyrs</s1>
<s2>38054 Grenoble</s2>
<s3>FRA</s3>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>9 aut.</sZ>
</fA14>
<fA14 i1="03"><s1>Laboratoire de Génie des Procédés Catalytiques, CNRS-CPE, 43 bd 11 novembre 1918, BP 2077</s1>
<s2>69616 Villeurbanne</s2>
<s3>FRA</s3>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
</fA14>
<fA15 i1="01"><s1>Process Technology & Engineering, Evonik Degussa GmbH, Rodenbacher Chaussee 4</s1>
<s2>63457 Hanau (Wolfgang)</s2>
<s3>DEU</s3>
<sZ>1 aut.</sZ>
</fA15>
<fA15 i1="02"><s1>Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), SB-ISIC-LGRC-Station 6, Bâtiment CH / CH J2 500</s1>
<s2>1015 Lausanne</s2>
<s3>CHE</s3>
<sZ>2 aut.</sZ>
</fA15>
<fA15 i1="03"><s1>Chemnitz University of Technology, Faculty of Natural Sciences, Department of Chemical Technology</s1>
<s2>09107 Chemnitz</s2>
<s3>DEU</s3>
<sZ>3 aut.</sZ>
</fA15>
<fA15 i1="04"><s1>Technical Chemistry and Reaction Engineering, ITMC, RWTH Aachen, Worringerweg 1</s1>
<s2>52074 Aachen</s2>
<s3>DEU</s3>
<sZ>4 aut.</sZ>
</fA15>
<fA15 i1="05"><s1>CNRS-ENSIC, Laboratoire des Sciences du Genie Chimique, 1, rue Grandville</s1>
<s2>54001 Nancy</s2>
<s3>FRA</s3>
<sZ>5 aut.</sZ>
</fA15>
<fA20><s2>S317-S326</s2>
</fA20>
<fA21><s1>2008</s1>
</fA21>
<fA23 i1="01"><s0>ENG</s0>
</fA23>
<fA43 i1="01"><s1>INIST</s1>
<s2>14678</s2>
<s5>354000173568260490</s5>
</fA43>
<fA44><s0>0000</s0>
<s1>© 2008 INIST-CNRS. All rights reserved.</s1>
</fA44>
<fA45><s0>29 ref.</s0>
</fA45>
<fA47 i1="01" i2="1"><s0>08-0055193</s0>
</fA47>
<fA60><s1>P</s1>
<s2>C</s2>
</fA60>
<fA61><s0>A</s0>
</fA61>
<fA64 i1="01" i2="1"><s0>Chemical engineering journal : (1996)</s0>
</fA64>
<fA66 i1="01"><s0>NLD</s0>
</fA66>
<fC01 i1="01" l="ENG"><s0>When surface-supported chemical reactions are performed in microsystems, high production rate cannot be obtained due to the intrinsically low surface area. Increasing the active surface area of silicon microsystems is a challenge that is addressed in this paper using two original approaches: (i) modifying the structure of silicon by creating nanostructures (black silicon) using conventional etching processes of silicon micromachining or (ii) depositing a layer of porous γ-alurnina by washcoating a colloidal suspension of boehmite onto the silicon surface. The catalytic oxidation of carbon monoxide on platinum was chosen as a first test reaction in the domain of heterogeneous catalysis. In order to perform this reaction, platinum was either deposited by sputtering on silicon devices with black silicon nanostructuration, or impregnated inside the porosity of an alumina layer previously deposited on a silicon device. For specific biological applications, such as proteins analysis, some biological reactions could be advantageously achieved in microsystems using surface-supported species. As an example, an enzymatic reaction was carried out using silicon devices modified with black silicon nanostructuration and further functionalized with trypsin as a model enzyme. The catalytic activity was compared between silicon devices with the same two types of catalysts, comprising or not an enhancement of the surface activity. A minimum 10-fold increase in catalytic activity was estimated from kinetic measurements and represents the augmentation of the active surface really available for reactions. It was also shown how these catalytic materials were integrated in a microreactor increasing its catalytic active surface without modifying its global size.</s0>
</fC01>
<fC02 i1="01" i2="X"><s0>001D07H</s0>
</fC02>
<fC02 i1="02" i2="X"><s0>001C01A03B</s0>
</fC02>
<fC03 i1="01" i2="X" l="FRE"><s0>Microréacteur</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="ENG"><s0>Microreactor</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="SPA"><s0>Microreactor</s0>
<s5>01</s5>
</fC03>
<fC03 i1="02" i2="X" l="FRE"><s0>Support catalyseur</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG"><s0>Catalyst support</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA"><s0>Soporte catalizador</s0>
<s5>02</s5>
</fC03>
<fC03 i1="03" i2="X" l="FRE"><s0>Catalyseur sur support</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="ENG"><s0>Supported catalyst</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA"><s0>Catalizador sobre soporte</s0>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Réaction chimique</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Chemical reaction</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Reacción química</s0>
<s5>04</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE"><s0>Production</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG"><s0>Production</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA"><s0>Producción</s0>
<s5>05</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE"><s0>Aire superficielle</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG"><s0>Surface area</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Area superficial</s0>
<s5>06</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE"><s0>Nanostructure</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>Nanostructure</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Nanoestructura</s0>
<s5>07</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Microusinage</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Micromachining</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Micromaquinado</s0>
<s5>08</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Suspension colloïdale</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Colloidal suspension</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Suspensión coloidal</s0>
<s5>09</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Réaction catalytique</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Catalytic reaction</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Reacción catalítica</s0>
<s5>10</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>Oxydation</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG"><s0>Oxidation</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA"><s0>Oxidación</s0>
<s5>11</s5>
</fC03>
<fC03 i1="12" i2="X" l="FRE"><s0>Catalyse hétérogène</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="X" l="ENG"><s0>Heterogeneous catalysis</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="X" l="SPA"><s0>Catálisis heterogénea</s0>
<s5>12</s5>
</fC03>
<fC03 i1="13" i2="X" l="FRE"><s0>Pulvérisation irradiation</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="X" l="ENG"><s0>Sputtering</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="X" l="SPA"><s0>Pulverización irradiación</s0>
<s5>13</s5>
</fC03>
<fC03 i1="14" i2="X" l="FRE"><s0>Porosité</s0>
<s5>14</s5>
</fC03>
<fC03 i1="14" i2="X" l="ENG"><s0>Porosity</s0>
<s5>14</s5>
</fC03>
<fC03 i1="14" i2="X" l="SPA"><s0>Porosidad</s0>
<s5>14</s5>
</fC03>
<fC03 i1="15" i2="X" l="FRE"><s0>Réaction enzymatique</s0>
<s5>15</s5>
</fC03>
<fC03 i1="15" i2="X" l="ENG"><s0>Enzymatic reaction</s0>
<s5>15</s5>
</fC03>
<fC03 i1="15" i2="X" l="SPA"><s0>Reacción enzimática</s0>
<s5>15</s5>
</fC03>
<fC03 i1="16" i2="X" l="FRE"><s0>Modélisation</s0>
<s5>16</s5>
</fC03>
<fC03 i1="16" i2="X" l="ENG"><s0>Modeling</s0>
<s5>16</s5>
</fC03>
<fC03 i1="16" i2="X" l="SPA"><s0>Modelización</s0>
<s5>16</s5>
</fC03>
<fC03 i1="17" i2="X" l="FRE"><s0>Activité catalytique</s0>
<s5>17</s5>
</fC03>
<fC03 i1="17" i2="X" l="ENG"><s0>Catalyst activity</s0>
<s5>17</s5>
</fC03>
<fC03 i1="17" i2="X" l="SPA"><s0>Actividad catalítica</s0>
<s5>17</s5>
</fC03>
<fC03 i1="18" i2="X" l="FRE"><s0>Cinétique</s0>
<s5>18</s5>
</fC03>
<fC03 i1="18" i2="X" l="ENG"><s0>Kinetics</s0>
<s5>18</s5>
</fC03>
<fC03 i1="18" i2="X" l="SPA"><s0>Cinética</s0>
<s5>18</s5>
</fC03>
<fN21><s1>028</s1>
</fN21>
<fN44 i1="01"><s1>OTO</s1>
</fN44>
<fN82><s1>OTO</s1>
</fN82>
</pA>
<pR><fA30 i1="01" i2="1" l="ENG"><s1>IMRET 9 : International Conference on Microreaction Technology</s1>
<s2>9</s2>
<s3>Potsdam DEU</s3>
<s4>2006-09-06</s4>
</fA30>
</pR>
</standard>
<server><NO>PASCAL 08-0055193 INIST</NO>
<ET>Enhancing surface activity in silicon microreactors : Use of black silicon and alumina as catalyst supports for chemical and biological applications</ET>
<AU>ROUMANIE (Marilyne); DELATTRE (Cyril); MITTLER (Frédérique); MARCHAND (Gilles); MEILLE (Valérie); DE BELLEFON (Claude); PIJOLAT (Christophe); TOURNIER (Guy); POUTEAU (Patrick); SCHÜTTE (Rüdiger); RENKEN (Albert); KLEMM (Elias); LIAUW (Marcel A.); MATLOSZ (Michael)</AU>
<AF>Ecole des Mines de Saint Etienne, Centre SPIN, Dpt MICC, LPMG-UMR CNRS 5148, 58 Cours Fauriel/42023 Saint Etienne/France (1 aut., 7 aut., 8 aut.); Laboratoire d'Electronique et de Technologie de l'Information, CEA-LETI/DTBS, 17 rue Martyrs/38054 Grenoble/France (2 aut., 3 aut., 4 aut., 9 aut.); Laboratoire de Génie des Procédés Catalytiques, CNRS-CPE, 43 bd 11 novembre 1918, BP 2077/69616 Villeurbanne/France (5 aut., 6 aut.); Process Technology & Engineering, Evonik Degussa GmbH, Rodenbacher Chaussee 4/63457 Hanau (Wolfgang)/Allemagne (1 aut.); Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), SB-ISIC-LGRC-Station 6, Bâtiment CH / CH J2 500/1015 Lausanne/Suisse (2 aut.); Chemnitz University of Technology, Faculty of Natural Sciences, Department of Chemical Technology/09107 Chemnitz/Allemagne (3 aut.); Technical Chemistry and Reaction Engineering, ITMC, RWTH Aachen, Worringerweg 1/52074 Aachen/Allemagne (4 aut.); CNRS-ENSIC, Laboratoire des Sciences du Genie Chimique, 1, rue Grandville/54001 Nancy/France (5 aut.)</AF>
<DT>Publication en série; Congrès; Niveau analytique</DT>
<SO>Chemical engineering journal : (1996); ISSN 1385-8947; Pays-Bas; Da. 2008; Vol. 135; No. SUP1; S317-S326; Bibl. 29 ref.</SO>
<LA>Anglais</LA>
<EA>When surface-supported chemical reactions are performed in microsystems, high production rate cannot be obtained due to the intrinsically low surface area. Increasing the active surface area of silicon microsystems is a challenge that is addressed in this paper using two original approaches: (i) modifying the structure of silicon by creating nanostructures (black silicon) using conventional etching processes of silicon micromachining or (ii) depositing a layer of porous γ-alurnina by washcoating a colloidal suspension of boehmite onto the silicon surface. The catalytic oxidation of carbon monoxide on platinum was chosen as a first test reaction in the domain of heterogeneous catalysis. In order to perform this reaction, platinum was either deposited by sputtering on silicon devices with black silicon nanostructuration, or impregnated inside the porosity of an alumina layer previously deposited on a silicon device. For specific biological applications, such as proteins analysis, some biological reactions could be advantageously achieved in microsystems using surface-supported species. As an example, an enzymatic reaction was carried out using silicon devices modified with black silicon nanostructuration and further functionalized with trypsin as a model enzyme. The catalytic activity was compared between silicon devices with the same two types of catalysts, comprising or not an enhancement of the surface activity. A minimum 10-fold increase in catalytic activity was estimated from kinetic measurements and represents the augmentation of the active surface really available for reactions. It was also shown how these catalytic materials were integrated in a microreactor increasing its catalytic active surface without modifying its global size.</EA>
<CC>001D07H; 001C01A03B</CC>
<FD>Microréacteur; Support catalyseur; Catalyseur sur support; Réaction chimique; Production; Aire superficielle; Nanostructure; Microusinage; Suspension colloïdale; Réaction catalytique; Oxydation; Catalyse hétérogène; Pulvérisation irradiation; Porosité; Réaction enzymatique; Modélisation; Activité catalytique; Cinétique</FD>
<ED>Microreactor; Catalyst support; Supported catalyst; Chemical reaction; Production; Surface area; Nanostructure; Micromachining; Colloidal suspension; Catalytic reaction; Oxidation; Heterogeneous catalysis; Sputtering; Porosity; Enzymatic reaction; Modeling; Catalyst activity; Kinetics</ED>
<SD>Microreactor; Soporte catalizador; Catalizador sobre soporte; Reacción química; Producción; Area superficial; Nanoestructura; Micromaquinado; Suspensión coloidal; Reacción catalítica; Oxidación; Catálisis heterogénea; Pulverización irradiación; Porosidad; Reacción enzimática; Modelización; Actividad catalítica; Cinética</SD>
<LO>INIST-14678.354000173568260490</LO>
<ID>08-0055193</ID>
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