Preparation and electrocatalytic application of composites containing gold nanoparticles protected with rhodium-substituted polyoxometalates
Identifieur interne : 002714 ( Main/Repository ); précédent : 002713; suivant : 002715Preparation and electrocatalytic application of composites containing gold nanoparticles protected with rhodium-substituted polyoxometalates
Auteurs : RBID : Pascal:11-0456516Descripteurs français
- Pascal (Inist)
- Préparation, Electrocatalyse, Application, Matériau composite, Or, Nanoparticule, Rhodium Composé, Hétéropolysel, Procédé sol gel, Electrode ITO, Matériau modifié, Spectrométrie UV visible, Microscopie électronique transmission, Méthionine, Bromate, Ampérométrie, Morphologie, Structure surface, Aminoacide soufré, Anion minéral, Brome Composé, Détecteur électrochimique, Molybdorhodophosphate, Silane(3-aminopropyl triéthoxy).
- Wicri :
- concept : Matériau composite, Or.
English descriptors
- KwdEn :
- Amperometry, Application, Bromates, Bromine Compounds, Composite material, Electrocatalysis, Electrochemical detector, Gold, Heteropolysalt, Indium tin oxide electrode, Inorganic anion, Methionine, Modified material, Morphology, Nanoparticle, Preparation, Rhodium Compounds, Sol gel process, Sulfur containing aminoacid, Surface structure, Transmission electron microscopy, Ultraviolet visible spectrometry.
Abstract
Substitution of a metal center of phosphomolybdate, PMO12O403- (PMO12), or its tungsten analogue with dirhodium(II) and subsequent stabilization of gold nanoparticles, AuNPs, with Rh2PMo11 are demonstrated. The AuNP-Rh2PMo11 mediates oxidations but adsorbs too weakly for direct modification of electrode materials. Stability in quiescent solution was achieved by modifying glassy carbon (GC) with 3-aminopropyltriethoxysilane (APTES) and then electrostatically assembling AuNP-Rh2PMo11. At GC|APTES|AuNP-Rh2 PMo11, cyclic voltammetry showed the expected set of three reversible peak-pairs for PMo11 in the range -0.2 to 0.6 vs. (Ag/AgCl)/V and the reversible RhII,III couple at 1.0 vs. (Ag/AgCl)/V. The presence of AuNPs increased the current for the reduction of bromate by a factor of 2.5 relative to that at GC|Rh2PMo11, and the electrocatalytic oxidation of methionine displayed characteristics of synergism between the AuNP and RhII . To stabilize AuNP-Rh2PMO11 on a surface in a flow system, GC was modified by electrochemically assisted deposition of a sol-gel with templated 10-nm pores prior to immobilizing the catalyst in the pores. The resulting electrode permitted determination of bromate by flow-injection amperometry with a detection limit of 4.0 x 10-8 mol dm-3.
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Pascal:11-0456516Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Preparation and electrocatalytic application of composites containing gold nanoparticles protected with rhodium-substituted polyoxometalates</title>
<author><name sortKey="Wiaderek, Kamila M" uniqKey="Wiaderek K">Kamila M. Wiaderek</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Chemistry and Biochemistry, Miami University</s1>
<s2>Oxford, OH 45056</s2>
<s3>USA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Oxford, OH 45056</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Cox, James A" uniqKey="Cox J">James A. Cox</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Chemistry and Biochemistry, Miami University</s1>
<s2>Oxford, OH 45056</s2>
<s3>USA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Oxford, OH 45056</wicri:noRegion>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="inist">11-0456516</idno>
<date when="2011">2011</date>
<idno type="stanalyst">PASCAL 11-0456516 INIST</idno>
<idno type="RBID">Pascal:11-0456516</idno>
<idno type="wicri:Area/Main/Corpus">002735</idno>
<idno type="wicri:Area/Main/Repository">002714</idno>
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<seriesStmt><idno type="ISSN">0013-4686</idno>
<title level="j" type="abbreviated">Electrochim. acta</title>
<title level="j" type="main">Electrochimica acta</title>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Amperometry</term>
<term>Application</term>
<term>Bromates</term>
<term>Bromine Compounds</term>
<term>Composite material</term>
<term>Electrocatalysis</term>
<term>Electrochemical detector</term>
<term>Gold</term>
<term>Heteropolysalt</term>
<term>Indium tin oxide electrode</term>
<term>Inorganic anion</term>
<term>Methionine</term>
<term>Modified material</term>
<term>Morphology</term>
<term>Nanoparticle</term>
<term>Preparation</term>
<term>Rhodium Compounds</term>
<term>Sol gel process</term>
<term>Sulfur containing aminoacid</term>
<term>Surface structure</term>
<term>Transmission electron microscopy</term>
<term>Ultraviolet visible spectrometry</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Préparation</term>
<term>Electrocatalyse</term>
<term>Application</term>
<term>Matériau composite</term>
<term>Or</term>
<term>Nanoparticule</term>
<term>Rhodium Composé</term>
<term>Hétéropolysel</term>
<term>Procédé sol gel</term>
<term>Electrode ITO</term>
<term>Matériau modifié</term>
<term>Spectrométrie UV visible</term>
<term>Microscopie électronique transmission</term>
<term>Méthionine</term>
<term>Bromate</term>
<term>Ampérométrie</term>
<term>Morphologie</term>
<term>Structure surface</term>
<term>Aminoacide soufré</term>
<term>Anion minéral</term>
<term>Brome Composé</term>
<term>Détecteur électrochimique</term>
<term>Molybdorhodophosphate</term>
<term>Silane(3-aminopropyl triéthoxy)</term>
</keywords>
<keywords scheme="Wicri" type="concept" xml:lang="fr"><term>Matériau composite</term>
<term>Or</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Substitution of a metal center of phosphomolybdate, PMO<sub>12</sub>
O<sub>40</sub>
<sup>3-</sup>
(PMO<sub>12</sub>
), or its tungsten analogue with dirhodium(II) and subsequent stabilization of gold nanoparticles, AuNPs, with Rh<sub>2</sub>
PMo<sub>11</sub>
are demonstrated. The AuNP-Rh<sub>2</sub>
PMo<sub>11</sub>
mediates oxidations but adsorbs too weakly for direct modification of electrode materials. Stability in quiescent solution was achieved by modifying glassy carbon (GC) with 3-aminopropyltriethoxysilane (APTES) and then electrostatically assembling AuNP-Rh<sub>2</sub>
PMo<sub>11</sub>
. At GC|APTES|AuNP-Rh<sub>2</sub>
PMo<sub>11</sub>
, cyclic voltammetry showed the expected set of three reversible peak-pairs for PMo<sub>11</sub>
in the range -0.2 to 0.6 vs. (Ag/AgCl)/V and the reversible Rh<sup>II,III</sup>
couple at 1.0 vs. (Ag/AgCl)/V. The presence of AuNPs increased the current for the reduction of bromate by a factor of 2.5 relative to that at GC|Rh<sub>2</sub>
PMo<sub>11</sub>
, and the electrocatalytic oxidation of methionine displayed characteristics of synergism between the AuNP and Rh<sup>II</sup>
. To stabilize AuNP-Rh<sub>2</sub>
PMO<sub>11</sub>
on a surface in a flow system, GC was modified by electrochemically assisted deposition of a sol-gel with templated 10-nm pores prior to immobilizing the catalyst in the pores. The resulting electrode permitted determination of bromate by flow-injection amperometry with a detection limit of 4.0 x 10<sup>-8</sup>
mol dm<sup>-3</sup>
.</div>
</front>
</TEI>
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<fA03 i2="1"><s0>Electrochim. acta</s0>
</fA03>
<fA05><s2>56</s2>
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<fA06><s2>10</s2>
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<fA08 i1="01" i2="1" l="ENG"><s1>Preparation and electrocatalytic application of composites containing gold nanoparticles protected with rhodium-substituted polyoxometalates</s1>
</fA08>
<fA09 i1="01" i2="1" l="ENG"><s1>ELECTROCHEMISTRY OF ELECTROACTIVE MATERIALS</s1>
</fA09>
<fA11 i1="01" i2="1"><s1>WIADEREK (Kamila M.)</s1>
</fA11>
<fA11 i1="02" i2="1"><s1>COX (James A.)</s1>
</fA11>
<fA12 i1="01" i2="1"><s1>KULESZA (P. J.)</s1>
<s9>ed.</s9>
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<fA12 i1="02" i2="1"><s1>SKOMPSKA (M.)</s1>
<s9>ed.</s9>
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<fA12 i1="03" i2="1"><s1>TSAKOVA (V.)</s1>
<s9>ed.</s9>
</fA12>
<fA12 i1="04" i2="1"><s1>VOROTYNTSEV (M. A.)</s1>
<s9>ed.</s9>
</fA12>
<fA14 i1="01"><s1>Department of Chemistry and Biochemistry, Miami University</s1>
<s2>Oxford, OH 45056</s2>
<s3>USA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
</fA14>
<fA15 i1="01"><s1>University of Warsaw</s1>
<s3>POL</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
</fA15>
<fA15 i1="02"><s1>Bulgarian Academy of Sciences</s1>
<s2>Sofia</s2>
<s3>BGR</s3>
<sZ>3 aut.</sZ>
</fA15>
<fA15 i1="03"><s1>University de Bourgogne</s1>
<s2>Dijon</s2>
<s3>FRA</s3>
<sZ>4 aut.</sZ>
</fA15>
<fA20><s1>3537-3542</s1>
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<fA21><s1>2011</s1>
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<fA23 i1="01"><s0>ENG</s0>
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<fA43 i1="01"><s1>INIST</s1>
<s2>1516</s2>
<s5>354000192952040180</s5>
</fA43>
<fA44><s0>0000</s0>
<s1>© 2011 INIST-CNRS. All rights reserved.</s1>
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<fA45><s0>37 ref.</s0>
</fA45>
<fA47 i1="01" i2="1"><s0>11-0456516</s0>
</fA47>
<fA60><s1>P</s1>
</fA60>
<fA61><s0>A</s0>
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<fA64 i1="01" i2="1"><s0>Electrochimica acta</s0>
</fA64>
<fA66 i1="01"><s0>GBR</s0>
</fA66>
<fC01 i1="01" l="ENG"><s0>Substitution of a metal center of phosphomolybdate, PMO<sub>12</sub>
O<sub>40</sub>
<sup>3-</sup>
(PMO<sub>12</sub>
), or its tungsten analogue with dirhodium(II) and subsequent stabilization of gold nanoparticles, AuNPs, with Rh<sub>2</sub>
PMo<sub>11</sub>
are demonstrated. The AuNP-Rh<sub>2</sub>
PMo<sub>11</sub>
mediates oxidations but adsorbs too weakly for direct modification of electrode materials. Stability in quiescent solution was achieved by modifying glassy carbon (GC) with 3-aminopropyltriethoxysilane (APTES) and then electrostatically assembling AuNP-Rh<sub>2</sub>
PMo<sub>11</sub>
. At GC|APTES|AuNP-Rh<sub>2</sub>
PMo<sub>11</sub>
, cyclic voltammetry showed the expected set of three reversible peak-pairs for PMo<sub>11</sub>
in the range -0.2 to 0.6 vs. (Ag/AgCl)/V and the reversible Rh<sup>II,III</sup>
couple at 1.0 vs. (Ag/AgCl)/V. The presence of AuNPs increased the current for the reduction of bromate by a factor of 2.5 relative to that at GC|Rh<sub>2</sub>
PMo<sub>11</sub>
, and the electrocatalytic oxidation of methionine displayed characteristics of synergism between the AuNP and Rh<sup>II</sup>
. To stabilize AuNP-Rh<sub>2</sub>
PMO<sub>11</sub>
on a surface in a flow system, GC was modified by electrochemically assisted deposition of a sol-gel with templated 10-nm pores prior to immobilizing the catalyst in the pores. The resulting electrode permitted determination of bromate by flow-injection amperometry with a detection limit of 4.0 x 10<sup>-8</sup>
mol dm<sup>-3</sup>
.</s0>
</fC01>
<fC02 i1="01" i2="X"><s0>001C01H01</s0>
</fC02>
<fC02 i1="02" i2="X"><s0>001C04E</s0>
</fC02>
<fC03 i1="01" i2="X" l="FRE"><s0>Préparation</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="ENG"><s0>Preparation</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="SPA"><s0>Preparación</s0>
<s5>01</s5>
</fC03>
<fC03 i1="02" i2="X" l="FRE"><s0>Electrocatalyse</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG"><s0>Electrocatalysis</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA"><s0>Electrocatálisis</s0>
<s5>02</s5>
</fC03>
<fC03 i1="03" i2="X" l="FRE"><s0>Application</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="ENG"><s0>Application</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA"><s0>Aplicación</s0>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Matériau composite</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Composite material</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Material compuesto</s0>
<s5>04</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE"><s0>Or</s0>
<s2>NC</s2>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG"><s0>Gold</s0>
<s2>NC</s2>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA"><s0>Oro</s0>
<s2>NC</s2>
<s5>05</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE"><s0>Nanoparticule</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG"><s0>Nanoparticle</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Nanopartícula</s0>
<s5>06</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE"><s0>Rhodium Composé</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>Rhodium Compounds</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Rodio Compuesto</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>07</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Hétéropolysel</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Heteropolysalt</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Heteropolisal</s0>
<s5>08</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Procédé sol gel</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Sol gel process</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Procedimiento sol gel</s0>
<s5>09</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Electrode ITO</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Indium tin oxide electrode</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Electrodo ITO</s0>
<s5>10</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>Matériau modifié</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG"><s0>Modified material</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA"><s0>Material modificado</s0>
<s5>11</s5>
</fC03>
<fC03 i1="12" i2="X" l="FRE"><s0>Spectrométrie UV visible</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="X" l="ENG"><s0>Ultraviolet visible spectrometry</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="X" l="SPA"><s0>Espectrometría UV visible</s0>
<s5>12</s5>
</fC03>
<fC03 i1="13" i2="X" l="FRE"><s0>Microscopie électronique transmission</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="X" l="ENG"><s0>Transmission electron microscopy</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="X" l="SPA"><s0>Microscopía electrónica transmisión</s0>
<s5>13</s5>
</fC03>
<fC03 i1="14" i2="X" l="FRE"><s0>Méthionine</s0>
<s2>NK</s2>
<s2>FR</s2>
<s5>14</s5>
</fC03>
<fC03 i1="14" i2="X" l="ENG"><s0>Methionine</s0>
<s2>NK</s2>
<s2>FR</s2>
<s5>14</s5>
</fC03>
<fC03 i1="14" i2="X" l="SPA"><s0>Metionina</s0>
<s2>NK</s2>
<s2>FR</s2>
<s5>14</s5>
</fC03>
<fC03 i1="15" i2="X" l="FRE"><s0>Bromate</s0>
<s2>NA</s2>
<s5>15</s5>
</fC03>
<fC03 i1="15" i2="X" l="ENG"><s0>Bromates</s0>
<s2>NA</s2>
<s5>15</s5>
</fC03>
<fC03 i1="15" i2="X" l="SPA"><s0>Bromato</s0>
<s2>NA</s2>
<s5>15</s5>
</fC03>
<fC03 i1="16" i2="X" l="FRE"><s0>Ampérométrie</s0>
<s5>16</s5>
</fC03>
<fC03 i1="16" i2="X" l="ENG"><s0>Amperometry</s0>
<s5>16</s5>
</fC03>
<fC03 i1="16" i2="X" l="SPA"><s0>Amperometría</s0>
<s5>16</s5>
</fC03>
<fC03 i1="17" i2="X" l="FRE"><s0>Morphologie</s0>
<s5>32</s5>
</fC03>
<fC03 i1="17" i2="X" l="ENG"><s0>Morphology</s0>
<s5>32</s5>
</fC03>
<fC03 i1="17" i2="X" l="SPA"><s0>Morfología</s0>
<s5>32</s5>
</fC03>
<fC03 i1="18" i2="X" l="FRE"><s0>Structure surface</s0>
<s5>33</s5>
</fC03>
<fC03 i1="18" i2="X" l="ENG"><s0>Surface structure</s0>
<s5>33</s5>
</fC03>
<fC03 i1="18" i2="X" l="SPA"><s0>Estructura superficie</s0>
<s5>33</s5>
</fC03>
<fC03 i1="19" i2="X" l="FRE"><s0>Aminoacide soufré</s0>
<s5>34</s5>
</fC03>
<fC03 i1="19" i2="X" l="ENG"><s0>Sulfur containing aminoacid</s0>
<s5>34</s5>
</fC03>
<fC03 i1="19" i2="X" l="SPA"><s0>Aminoácido azufrado</s0>
<s5>34</s5>
</fC03>
<fC03 i1="20" i2="X" l="FRE"><s0>Anion minéral</s0>
<s5>35</s5>
</fC03>
<fC03 i1="20" i2="X" l="ENG"><s0>Inorganic anion</s0>
<s5>35</s5>
</fC03>
<fC03 i1="20" i2="X" l="SPA"><s0>Anión inorgánico</s0>
<s5>35</s5>
</fC03>
<fC03 i1="21" i2="X" l="FRE"><s0>Brome Composé</s0>
<s2>NC</s2>
<s2>FR</s2>
<s2>FX</s2>
<s2>NA</s2>
<s5>36</s5>
</fC03>
<fC03 i1="21" i2="X" l="ENG"><s0>Bromine Compounds</s0>
<s2>NC</s2>
<s2>FR</s2>
<s2>FX</s2>
<s2>NA</s2>
<s5>36</s5>
</fC03>
<fC03 i1="21" i2="X" l="SPA"><s0>Bromo Compuesto</s0>
<s2>NC</s2>
<s2>FR</s2>
<s2>FX</s2>
<s2>NA</s2>
<s5>36</s5>
</fC03>
<fC03 i1="22" i2="X" l="FRE"><s0>Détecteur électrochimique</s0>
<s5>37</s5>
</fC03>
<fC03 i1="22" i2="X" l="ENG"><s0>Electrochemical detector</s0>
<s5>37</s5>
</fC03>
<fC03 i1="22" i2="X" l="SPA"><s0>Detector electroquímico</s0>
<s5>37</s5>
</fC03>
<fC03 i1="23" i2="X" l="FRE"><s0>Molybdorhodophosphate</s0>
<s4>INC</s4>
<s5>76</s5>
</fC03>
<fC03 i1="24" i2="X" l="FRE"><s0>Silane(3-aminopropyl triéthoxy)</s0>
<s4>INC</s4>
<s5>77</s5>
</fC03>
<fC07 i1="01" i2="X" l="FRE"><s0>Métal transition</s0>
<s2>NC</s2>
<s5>53</s5>
</fC07>
<fC07 i1="01" i2="X" l="ENG"><s0>Transition metal</s0>
<s2>NC</s2>
<s5>53</s5>
</fC07>
<fC07 i1="01" i2="X" l="SPA"><s0>Metal transición</s0>
<s2>NC</s2>
<s5>53</s5>
</fC07>
<fC07 i1="02" i2="X" l="FRE"><s0>Platinoïde</s0>
<s2>NC</s2>
<s5>54</s5>
</fC07>
<fC07 i1="02" i2="X" l="ENG"><s0>Platinoid</s0>
<s2>NC</s2>
<s5>54</s5>
</fC07>
<fC07 i1="02" i2="X" l="SPA"><s0>Platinoide</s0>
<s2>NC</s2>
<s5>54</s5>
</fC07>
<fN21><s1>311</s1>
</fN21>
</pA>
</standard>
</inist>
</record>
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