XPS study of silver, nickel and bimetallic silver-nickel nanoparticles prepared by seed-mediated growth
Identifieur interne : 001258 ( Main/Repository ); précédent : 001257; suivant : 001259XPS study of silver, nickel and bimetallic silver-nickel nanoparticles prepared by seed-mediated growth
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Abstract
The chemical structure of silver, nickel and bimetallic silver-nickel nanoparticles, i.e. Ag, Ni and AgNi NPs, with sizes ≤35 nm, obtained by derived seed-mediated growth method on transparent and conductive indium tin oxide (ITO) substrates, has been studied by a comparative X-ray photoelectron spectroscopy (XPS) analysis of Ag 3d, Ni 2p and O1s core levels in combination with X-ray diffraction and optical absorption spectroscopy in the visible range. XPS indicates that the surface of Ag NPs is not oxidized, while Ni NPs are clearly oxidized to nickel oxide and hydroxide. Absorptions at 384 and 600 nm in Ni optical spectrum are consistent with the presence of nickel in oxidized state; however the presence of metallic Ni 2p signal in Ni XPS spectrum indicates that a metallic nickel core is still present. In the case of bimetallic AgNi NPs, the XPS results are consistent with the presence of metallic silver core surrounded by NiO + Ni(OH)2 shell. XPS spectra also show the presence of Ag2O at the interface between the Ag metallic core and the oxidized nickel shell. XRD patterns of AgNi and Ag NPs show the typical fcc structure of metallic silver, confirming the presence of Ag metallic core in AgNi NPs. The surface plasmon resonance peak (SPR) of AgNi NPs shows a blue shift to 375 nm with respect to the SPR of Ag NPs, located at 405 nm, reflecting the character of the oxidized nickel shell.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">XPS study of silver, nickel and bimetallic silver-nickel nanoparticles prepared by seed-mediated growth</title><author><name sortKey="Prieto, Pilar" uniqKey="Prieto P">Pilar Prieto</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Departamento de Física Aplicada and Instituto de Ciencia de Materiales "Nicolas Cabrera", Universidad Autónoma de Madrid</s1><s2>Cantoblanco, 28049 Madrid</s2><s3>ESP</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Communauté de Madrid</region></placeName><orgName type="university">Université autonome de Madrid</orgName></affiliation></author><author><name sortKey="Nistor, Valentin" uniqKey="Nistor V">Valentin Nistor</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Departamento de Física Aplicada and Instituto de Ciencia de Materiales "Nicolas Cabrera", Universidad Autónoma de Madrid</s1><s2>Cantoblanco, 28049 Madrid</s2><s3>ESP</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Communauté de Madrid</region></placeName><orgName type="university">Université autonome de Madrid</orgName></affiliation></author><author><name sortKey="Nouneh, Khalid" uniqKey="Nouneh K">Khalid Nouneh</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Institute for Nanomaterials & Nanotechnology (INANOTECH), Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), ENSET, Av. Armée Royale</s1><s2>10100, Rabat</s2><s3>MAR</s3><sZ>3 aut.</sZ></inist:fA14><country>Maroc</country><wicri:noRegion>10100, Rabat</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Department of Material Chemistry, Graduate School of Engineering, Kyoto University</s1><s2>Nishikyo-ku, Kyoto 615-8520</s2><s3>JPN</s3><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>Nishikyo-ku, Kyoto 615-8520</wicri:noRegion></affiliation></author><author><name sortKey="Oyama, Munetaka" uniqKey="Oyama M">Munetaka Oyama</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Department of Material Chemistry, Graduate School of Engineering, Kyoto University</s1><s2>Nishikyo-ku, Kyoto 615-8520</s2><s3>JPN</s3><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>Nishikyo-ku, Kyoto 615-8520</wicri:noRegion></affiliation></author><author><name sortKey="Abd Lefdil, Mohammed" uniqKey="Abd Lefdil M">Mohammed Abd-Lefdil</name><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Laboratory of Materials Physics, University Mohammed V-Agdal</s1><s2>Rabat</s2><s3>MAR</s3><sZ>5 aut.</sZ></inist:fA14><country>Maroc</country><wicri:noRegion>Rabat</wicri:noRegion></affiliation></author><author><name sortKey="Diaz, Raquel" uniqKey="Diaz R">Raquel Diaz</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Departamento de Física Aplicada and Instituto de Ciencia de Materiales "Nicolas Cabrera", Universidad Autónoma de Madrid</s1><s2>Cantoblanco, 28049 Madrid</s2><s3>ESP</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Communauté de Madrid</region></placeName><orgName type="university">Université autonome de Madrid</orgName></affiliation></author></titleStmt><publicationStmt><idno type="inist">12-0385935</idno><date when="2012">2012</date><idno type="stanalyst">PASCAL 12-0385935 INIST</idno><idno type="RBID">Pascal:12-0385935</idno><idno type="wicri:Area/Main/Corpus">001780</idno><idno type="wicri:Area/Main/Repository">001258</idno></publicationStmt><seriesStmt><idno type="ISSN">0169-4332</idno><title level="j" type="abbreviated">Appl. surf. sci.</title><title level="j" type="main">Applied surface science</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Nanoparticles</term><term>Nickel</term><term>Silver</term><term>Transition elements</term><term>X-ray photoelectron spectra</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Spectre photoélectron RX</term><term>Argent</term><term>Métal transition</term><term>Nickel</term><term>Nanoparticule</term><term>Ag</term><term>Ni</term></keywords><keywords scheme="Wicri" type="concept" xml:lang="fr"><term>Argent</term><term>Nickel</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The chemical structure of silver, nickel and bimetallic silver-nickel nanoparticles, i.e. Ag, Ni and AgNi NPs, with sizes ≤35 nm, obtained by derived seed-mediated growth method on transparent and conductive indium tin oxide (ITO) substrates, has been studied by a comparative X-ray photoelectron spectroscopy (XPS) analysis of Ag 3d, Ni 2p and O1s core levels in combination with X-ray diffraction and optical absorption spectroscopy in the visible range. XPS indicates that the surface of Ag NPs is not oxidized, while Ni NPs are clearly oxidized to nickel oxide and hydroxide. Absorptions at 384 and 600 nm in Ni optical spectrum are consistent with the presence of nickel in oxidized state; however the presence of metallic Ni 2p signal in Ni XPS spectrum indicates that a metallic nickel core is still present. In the case of bimetallic AgNi NPs, the XPS results are consistent with the presence of metallic silver core surrounded by NiO + Ni(OH)<sub>2</sub> shell. XPS spectra also show the presence of Ag<sub>2</sub>O at the interface between the Ag metallic core and the oxidized nickel shell. XRD patterns of AgNi and Ag NPs show the typical fcc structure of metallic silver, confirming the presence of Ag metallic core in AgNi NPs. The surface plasmon resonance peak (SPR) of AgNi NPs shows a blue shift to 375 nm with respect to the SPR of Ag NPs, located at 405 nm, reflecting the character of the oxidized nickel shell.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0169-4332</s0></fA01><fA03 i2="1"><s0>Appl. surf. sci.</s0></fA03><fA05><s2>258</s2></fA05><fA06><s2>22</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>XPS study of silver, nickel and bimetallic silver-nickel nanoparticles prepared by seed-mediated growth</s1></fA08><fA11 i1="01" i2="1"><s1>PRIETO (Pilar)</s1></fA11><fA11 i1="02" i2="1"><s1>NISTOR (Valentin)</s1></fA11><fA11 i1="03" i2="1"><s1>NOUNEH (Khalid)</s1></fA11><fA11 i1="04" i2="1"><s1>OYAMA (Munetaka)</s1></fA11><fA11 i1="05" i2="1"><s1>ABD-LEFDIL (Mohammed)</s1></fA11><fA11 i1="06" i2="1"><s1>DIAZ (Raquel)</s1></fA11><fA14 i1="01"><s1>Departamento de Física Aplicada and Instituto de Ciencia de Materiales "Nicolas Cabrera", Universidad Autónoma de Madrid</s1><s2>Cantoblanco, 28049 Madrid</s2><s3>ESP</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>6 aut.</sZ></fA14><fA14 i1="02"><s1>Institute for Nanomaterials & Nanotechnology (INANOTECH), Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), ENSET, Av. Armée Royale</s1><s2>10100, Rabat</s2><s3>MAR</s3><sZ>3 aut.</sZ></fA14><fA14 i1="03"><s1>Department of Material Chemistry, Graduate School of Engineering, Kyoto University</s1><s2>Nishikyo-ku, Kyoto 615-8520</s2><s3>JPN</s3><sZ>3 aut.</sZ><sZ>4 aut.</sZ></fA14><fA14 i1="04"><s1>Laboratory of Materials Physics, University Mohammed V-Agdal</s1><s2>Rabat</s2><s3>MAR</s3><sZ>5 aut.</sZ></fA14><fA20><s1>8807-8812</s1></fA20><fA21><s1>2012</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>16002</s2><s5>354000506627910620</s5></fA43><fA44><s0>0000</s0><s1>© 2012 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>20 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>12-0385935</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Applied surface science</s0></fA64><fA66 i1="01"><s0>NLD</s0></fA66><fC01 i1="01" l="ENG"><s0>The chemical structure of silver, nickel and bimetallic silver-nickel nanoparticles, i.e. Ag, Ni and AgNi NPs, with sizes ≤35 nm, obtained by derived seed-mediated growth method on transparent and conductive indium tin oxide (ITO) substrates, has been studied by a comparative X-ray photoelectron spectroscopy (XPS) analysis of Ag 3d, Ni 2p and O1s core levels in combination with X-ray diffraction and optical absorption spectroscopy in the visible range. XPS indicates that the surface of Ag NPs is not oxidized, while Ni NPs are clearly oxidized to nickel oxide and hydroxide. Absorptions at 384 and 600 nm in Ni optical spectrum are consistent with the presence of nickel in oxidized state; however the presence of metallic Ni 2p signal in Ni XPS spectrum indicates that a metallic nickel core is still present. In the case of bimetallic AgNi NPs, the XPS results are consistent with the presence of metallic silver core surrounded by NiO + Ni(OH)<sub>2</sub> shell. XPS spectra also show the presence of Ag<sub>2</sub>O at the interface between the Ag metallic core and the oxidized nickel shell. XRD patterns of AgNi and Ag NPs show the typical fcc structure of metallic silver, confirming the presence of Ag metallic core in AgNi NPs. The surface plasmon resonance peak (SPR) of AgNi NPs shows a blue shift to 375 nm with respect to the SPR of Ag NPs, located at 405 nm, reflecting the character of the oxidized nickel shell.</s0></fC01><fC02 i1="01" i2="3"><s0>001B60</s0></fC02><fC02 i1="02" i2="3"><s0>001B70</s0></fC02><fC02 i1="03" i2="3"><s0>001B80</s0></fC02><fC03 i1="01" i2="3" l="FRE"><s0>Spectre photoélectron RX</s0><s5>01</s5></fC03><fC03 i1="01" i2="3" l="ENG"><s0>X-ray photoelectron spectra</s0><s5>01</s5></fC03><fC03 i1="02" i2="3" l="FRE"><s0>Argent</s0><s2>NC</s2><s5>02</s5></fC03><fC03 i1="02" i2="3" l="ENG"><s0>Silver</s0><s2>NC</s2><s5>02</s5></fC03><fC03 i1="03" i2="3" l="FRE"><s0>Métal transition</s0><s5>03</s5></fC03><fC03 i1="03" i2="3" l="ENG"><s0>Transition elements</s0><s5>03</s5></fC03><fC03 i1="04" i2="3" l="FRE"><s0>Nickel</s0><s2>NC</s2><s5>04</s5></fC03><fC03 i1="04" i2="3" l="ENG"><s0>Nickel</s0><s2>NC</s2><s5>04</s5></fC03><fC03 i1="05" i2="3" l="FRE"><s0>Nanoparticule</s0><s5>05</s5></fC03><fC03 i1="05" i2="3" l="ENG"><s0>Nanoparticles</s0><s5>05</s5></fC03><fC03 i1="06" i2="3" l="FRE"><s0>Ag</s0><s4>INC</s4><s5>32</s5></fC03><fC03 i1="07" i2="3" l="FRE"><s0>Ni</s0><s4>INC</s4><s5>33</s5></fC03><fN21><s1>296</s1></fN21><fN44 i1="01"><s1>OTO</s1></fN44><fN82><s1>OTO</s1></fN82></pA></standard></inist></record>Pour manipuler ce document sous Unix (Dilib)
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