Local deposition of anisotropic nanoparticles using scanning electrochemical microscopy (SECM)
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Abstract
We demonstrate localized electrodeposition of anisotropic metal nanoobjects, namely Au nanorods (GNR), on indium tin oxide (ITO) using scanning electrochemical microscopy (SECM). A gold microelectrode was the source of the gold ions whereby double pulse chronoamperometry was employed to generate initially Au seeds which were further grown under controlled conditions. The distance between the microelectrode and the ITO surface as well as the different experimental parameters (electrodeposition regime, solution composition and temperature) were optimized to produce faceted gold seeds with the required characteristics (size and distribution). Colloidal chemical synthesis was successfully exploited for better understanding the role of the surfactant and different additives in breaking the crystallographic symmetry and anisotropic growth of GNR. Experiments performed in a conventional three-electrode cell revealed the most appropriate electrochemical conditions allowing high yield synthesis of nanorods with well-defined shape as well as nanocubes and bipyramids.
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Fedorov</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute of Chemistry, The Hebrew University of Jerusalem</s1><s2>Jerusalem 91904</s2><s3>ISR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Israël</country><wicri:noRegion>Jerusalem 91904</wicri:noRegion></affiliation></author><author><name sortKey="Mandler, Daniel" uniqKey="Mandler D">Daniel Mandler</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute of Chemistry, The Hebrew University of Jerusalem</s1><s2>Jerusalem 91904</s2><s3>ISR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Israël</country><wicri:noRegion>Jerusalem 91904</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="inist">13-0178081</idno><date when="2013">2013</date><idno type="stanalyst">PASCAL 13-0178081 INIST</idno><idno type="RBID">Pascal:13-0178081</idno><idno type="wicri:Area/Main/Corpus">000E22</idno><idno type="wicri:Area/Main/Repository">000959</idno></publicationStmt><seriesStmt><idno type="ISSN">1463-9076</idno><title level="j" type="abbreviated">PCCP, Phys. chem. chem. phys. : (Print)</title><title level="j" type="main">PCCP. Physical chemistry chemical physics : (Print)</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Anisotropy</term><term>Deposition</term><term>Gold</term><term>Indium Oxides</term><term>Nanoparticle</term><term>Nanorod</term><term>Scanning electrochemical microscopy</term><term>Ternary compound</term><term>Tin Oxides</term><term>Transition metal</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Dépôt</term><term>Nanoparticule</term><term>Anisotropie</term><term>Or</term><term>Nanobâtonnet</term><term>Indium Oxyde</term><term>Etain Oxyde</term><term>Composé ternaire</term><term>Métal transition</term><term>Microscopie électrochimique à balayage</term></keywords><keywords scheme="Wicri" type="concept" xml:lang="fr"><term>Or</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We demonstrate localized electrodeposition of anisotropic metal nanoobjects, namely Au nanorods (GNR), on indium tin oxide (ITO) using scanning electrochemical microscopy (SECM). A gold microelectrode was the source of the gold ions whereby double pulse chronoamperometry was employed to generate initially Au seeds which were further grown under controlled conditions. The distance between the microelectrode and the ITO surface as well as the different experimental parameters (electrodeposition regime, solution composition and temperature) were optimized to produce faceted gold seeds with the required characteristics (size and distribution). Colloidal chemical synthesis was successfully exploited for better understanding the role of the surfactant and different additives in breaking the crystallographic symmetry and anisotropic growth of GNR. Experiments performed in a conventional three-electrode cell revealed the most appropriate electrochemical conditions allowing high yield synthesis of nanorods with well-defined shape as well as nanocubes and bipyramids.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>1463-9076</s0></fA01><fA03 i2="1"><s0>PCCP, Phys. chem. chem. phys. : (Print)</s0></fA03><fA05><s2>15</s2></fA05><fA06><s2>8</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Local deposition of anisotropic nanoparticles using scanning electrochemical microscopy (SECM)</s1></fA08><fA11 i1="01" i2="1"><s1>FEDOROV (Roman G.)</s1></fA11><fA11 i1="02" i2="1"><s1>MANDLER (Daniel)</s1></fA11><fA14 i1="01"><s1>Institute of Chemistry, The Hebrew University of Jerusalem</s1><s2>Jerusalem 91904</s2><s3>ISR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></fA14><fA20><s1>2725-2732</s1></fA20><fA21><s1>2013</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>26801</s2><s5>354000173282390130</s5></fA43><fA44><s0>0000</s0><s1>© 2013 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>76 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>13-0178081</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>PCCP. Physical chemistry chemical physics : (Print)</s0></fA64><fA66 i1="01"><s0>GBR</s0></fA66><fC01 i1="01" l="ENG"><s0>We demonstrate localized electrodeposition of anisotropic metal nanoobjects, namely Au nanorods (GNR), on indium tin oxide (ITO) using scanning electrochemical microscopy (SECM). A gold microelectrode was the source of the gold ions whereby double pulse chronoamperometry was employed to generate initially Au seeds which were further grown under controlled conditions. The distance between the microelectrode and the ITO surface as well as the different experimental parameters (electrodeposition regime, solution composition and temperature) were optimized to produce faceted gold seeds with the required characteristics (size and distribution). Colloidal chemical synthesis was successfully exploited for better understanding the role of the surfactant and different additives in breaking the crystallographic symmetry and anisotropic growth of GNR. Experiments performed in a conventional three-electrode cell revealed the most appropriate electrochemical conditions allowing high yield synthesis of nanorods with well-defined shape as well as nanocubes and bipyramids.</s0></fC01><fC02 i1="01" i2="X"><s0>001C01J02</s0></fC02><fC03 i1="01" i2="X" l="FRE"><s0>Dépôt</s0><s5>01</s5></fC03><fC03 i1="01" i2="X" l="ENG"><s0>Deposition</s0><s5>01</s5></fC03><fC03 i1="01" i2="X" l="SPA"><s0>Depósito</s0><s5>01</s5></fC03><fC03 i1="02" i2="X" l="FRE"><s0>Nanoparticule</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="ENG"><s0>Nanoparticle</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="SPA"><s0>Nanopartícula</s0><s5>02</s5></fC03><fC03 i1="03" i2="X" l="FRE"><s0>Anisotropie</s0><s5>03</s5></fC03><fC03 i1="03" i2="X" l="ENG"><s0>Anisotropy</s0><s5>03</s5></fC03><fC03 i1="03" i2="X" l="SPA"><s0>Anisotropía</s0><s5>03</s5></fC03><fC03 i1="04" i2="X" l="FRE"><s0>Or</s0><s2>NC</s2><s5>04</s5></fC03><fC03 i1="04" i2="X" l="ENG"><s0>Gold</s0><s2>NC</s2><s5>04</s5></fC03><fC03 i1="04" i2="X" l="SPA"><s0>Oro</s0><s2>NC</s2><s5>04</s5></fC03><fC03 i1="05" i2="X" l="FRE"><s0>Nanobâtonnet</s0><s5>05</s5></fC03><fC03 i1="05" i2="X" l="ENG"><s0>Nanorod</s0><s5>05</s5></fC03><fC03 i1="05" i2="X" l="SPA"><s0>Nanopalito</s0><s5>05</s5></fC03><fC03 i1="06" i2="X" l="FRE"><s0>Indium Oxyde</s0><s2>NC</s2><s2>NA</s2><s5>06</s5></fC03><fC03 i1="06" i2="X" l="ENG"><s0>Indium Oxides</s0><s2>NC</s2><s2>NA</s2><s5>06</s5></fC03><fC03 i1="06" i2="X" l="SPA"><s0>Indio Óxido</s0><s2>NC</s2><s2>NA</s2><s5>06</s5></fC03><fC03 i1="07" i2="X" l="FRE"><s0>Etain Oxyde</s0><s2>NC</s2><s2>FX</s2><s2>NA</s2><s5>07</s5></fC03><fC03 i1="07" i2="X" l="ENG"><s0>Tin Oxides</s0><s2>NC</s2><s2>FX</s2><s2>NA</s2><s5>07</s5></fC03><fC03 i1="07" i2="X" l="SPA"><s0>Estaño Óxido</s0><s2>NC</s2><s2>FX</s2><s2>NA</s2><s5>07</s5></fC03><fC03 i1="08" i2="X" l="FRE"><s0>Composé ternaire</s0><s5>08</s5></fC03><fC03 i1="08" i2="X" l="ENG"><s0>Ternary compound</s0><s5>08</s5></fC03><fC03 i1="08" i2="X" l="SPA"><s0>Compuesto ternario</s0><s5>08</s5></fC03><fC03 i1="09" i2="X" l="FRE"><s0>Métal transition</s0><s2>NC</s2><s5>09</s5></fC03><fC03 i1="09" i2="X" l="ENG"><s0>Transition metal</s0><s2>NC</s2><s5>09</s5></fC03><fC03 i1="09" i2="X" l="SPA"><s0>Metal transición</s0><s2>NC</s2><s5>09</s5></fC03><fC03 i1="10" i2="X" l="FRE"><s0>Microscopie électrochimique à balayage</s0><s4>CD</s4><s5>96</s5></fC03><fC03 i1="10" i2="X" l="ENG"><s0>Scanning electrochemical microscopy</s0><s4>CD</s4><s5>96</s5></fC03><fN21><s1>161</s1></fN21></pA></standard></inist></record>Pour manipuler ce document sous Unix (Dilib)
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