Local deposition of anisotropic nanoparticles using scanning electrochemical microscopy (SECM).
Identifieur interne : 000569 ( Main/Exploration ); précédent : 000568; suivant : 000570Local deposition of anisotropic nanoparticles using scanning electrochemical microscopy (SECM).
Auteurs : RBID : pubmed:23338843Abstract
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.
DOI: 10.1039/c2cp42823g
PubMed: 23338843
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Local deposition of anisotropic nanoparticles using scanning electrochemical microscopy (SECM).</title><author><name sortKey="Fedorov, Roman G" uniqKey="Fedorov R">Roman G Fedorov</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel.</nlm:affiliation><country xml:lang="fr">Israël</country><wicri:regionArea>Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904</wicri:regionArea></affiliation></author><author><name sortKey="Mandler, Daniel" uniqKey="Mandler D">Daniel Mandler</name></author></titleStmt><publicationStmt><date when="2013">2013</date><idno type="doi">10.1039/c2cp42823g</idno><idno type="RBID">pubmed:23338843</idno><idno type="pmid">23338843</idno><idno type="wicri:Area/Main/Corpus">000839</idno><idno type="wicri:Area/Main/Curation">000839</idno><idno type="wicri:Area/Main/Exploration">000569</idno></publicationStmt></fileDesc><profileDesc><textClass></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><pubmed><MedlineCitation Owner="NLM" Status="PubMed-not-MEDLINE"><PMID Version="1">23338843</PMID><DateCreated><Year>2013</Year><Month>02</Month><Day>01</Day></DateCreated><DateCompleted><Year>2013</Year><Month>08</Month><Day>16</Day></DateCompleted><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1463-9084</ISSN><JournalIssue CitedMedium="Internet"><Volume>15</Volume><Issue>8</Issue><PubDate><Year>2013</Year><Month>Feb</Month><Day>28</Day></PubDate></JournalIssue><Title>Physical chemistry chemical physics : PCCP</Title><ISOAbbreviation>Phys Chem Chem Phys</ISOAbbreviation></Journal><ArticleTitle>Local deposition of anisotropic nanoparticles using scanning electrochemical microscopy (SECM).</ArticleTitle><Pagination><MedlinePgn>2725-32</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1039/c2cp42823g</ELocationID><Abstract><AbstractText>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.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Fedorov</LastName><ForeName>Roman G</ForeName><Initials>RG</Initials><Affiliation>Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel.</Affiliation></Author><Author ValidYN="Y"><LastName>Mandler</LastName><ForeName>Daniel</ForeName><Initials>D</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType>Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Phys Chem Chem Phys</MedlineTA><NlmUniqueID>100888160</NlmUniqueID><ISSNLinking>1463-9076</ISSNLinking></MedlineJournalInfo></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2013</Year><Month>1</Month><Day>23</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2013</Year><Month>1</Month><Day>23</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2013</Year><Month>1</Month><Day>23</Day><Hour>6</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="doi">10.1039/c2cp42823g</ArticleId><ArticleId IdType="pubmed">23338843</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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