RF-sputtering preparation of gold-nanoparticle-modified ITO electrodes for electrocatalytic applications.
Identifieur interne : 001178 ( Main/Exploration ); précédent : 001177; suivant : 001179RF-sputtering preparation of gold-nanoparticle-modified ITO electrodes for electrocatalytic applications.
Auteurs : RBID : pubmed:21606565Abstract
The preparation of gold-nanoparticle (AuNPs)-modified indium tin oxide (ITO) electrodes (AuNPs/ITO) was performed by radio-frequency (RF) sputtering from Ar plasmas at temperatures as low as 60 °C, tailoring the AuNP morphology and content as a function of the sole sputtering time. The latter parameter was varied from 5 to 20 min in order to investigate the influence of gold amount and distribution on the electrochemical performances of the resulting AuNPs/ITO systems. The electrodes were characterized using field emission-scanning electron microscopy (FE-SEM), UV-vis absorption and x-ray photoelectron spectroscopies (XPS); moreover variable scan rate cyclic voltammetry (CV) studies were performed to examine their electrochemical behavior. The electrocatalytic activity of the nanostructured AuNPs/ITO electrodes toward methanol oxidation was investigated and compared with a continuous gold film (Aufilm/ITO). The catalytic efficiency of the AuNPs/ITO systems was found to increase with the gold content and the AuNPs-support boundary region in the corresponding samples. For the longest sputtering time (i.e. 20 min) the performances of the nanostructured electrode were better than the Aufilm/ITO reference, despite the much lower catalyst amount. Furthermore, conversely from the AuNPs/ITO samples, in the Au(film)/ITO case the gold film displayed a poor adhesion to the substrate and the electrode could be used only for a limited number of electrochemical cycles.
DOI: 10.1088/0957-4484/22/27/275711
PubMed: 21606565
Links toward previous steps (curation, corpus...)
Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">RF-sputtering preparation of gold-nanoparticle-modified ITO electrodes for electrocatalytic applications.</title><author><name sortKey="Ballarin, B" uniqKey="Ballarin B">B Ballarin</name><affiliation wicri:level="1"><nlm:affiliation>Dipartimento di Chimica Fisica ed Inorganica, Università di Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy. barbara.ballarin@ms.fci.unibo.it</nlm:affiliation><country xml:lang="fr">Italie</country><wicri:regionArea>Dipartimento di Chimica Fisica ed Inorganica, Università di Bologna, Viale Risorgimento 4, I-40136 Bologna</wicri:regionArea></affiliation></author><author><name sortKey="Cassani, M C" uniqKey="Cassani M">M C Cassani</name></author><author><name sortKey="Maccato, C" uniqKey="Maccato C">C Maccato</name></author><author><name sortKey="Gasparotto, A" uniqKey="Gasparotto A">A Gasparotto</name></author></titleStmt><publicationStmt><date when="2011">2011</date><idno type="doi">10.1088/0957-4484/22/27/275711</idno><idno type="RBID">pubmed:21606565</idno><idno type="pmid">21606565</idno><idno type="wicri:Area/Main/Corpus">001366</idno><idno type="wicri:Area/Main/Curation">001366</idno><idno type="wicri:Area/Main/Exploration">001178</idno></publicationStmt></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The preparation of gold-nanoparticle (AuNPs)-modified indium tin oxide (ITO) electrodes (AuNPs/ITO) was performed by radio-frequency (RF) sputtering from Ar plasmas at temperatures as low as 60 °C, tailoring the AuNP morphology and content as a function of the sole sputtering time. The latter parameter was varied from 5 to 20 min in order to investigate the influence of gold amount and distribution on the electrochemical performances of the resulting AuNPs/ITO systems. The electrodes were characterized using field emission-scanning electron microscopy (FE-SEM), UV-vis absorption and x-ray photoelectron spectroscopies (XPS); moreover variable scan rate cyclic voltammetry (CV) studies were performed to examine their electrochemical behavior. The electrocatalytic activity of the nanostructured AuNPs/ITO electrodes toward methanol oxidation was investigated and compared with a continuous gold film (Aufilm/ITO). The catalytic efficiency of the AuNPs/ITO systems was found to increase with the gold content and the AuNPs-support boundary region in the corresponding samples. For the longest sputtering time (i.e. 20 min) the performances of the nanostructured electrode were better than the Aufilm/ITO reference, despite the much lower catalyst amount. Furthermore, conversely from the AuNPs/ITO samples, in the Au(film)/ITO case the gold film displayed a poor adhesion to the substrate and the electrode could be used only for a limited number of electrochemical cycles.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="PubMed-not-MEDLINE"><PMID Version="1">21606565</PMID><DateCreated><Year>2011</Year><Month>05</Month><Day>26</Day></DateCreated><DateCompleted><Year>2011</Year><Month>11</Month><Day>28</Day></DateCompleted><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1361-6528</ISSN><JournalIssue CitedMedium="Internet"><Volume>22</Volume><Issue>27</Issue><PubDate><Year>2011</Year><Month>Jul</Month><Day>8</Day></PubDate></JournalIssue><Title>Nanotechnology</Title><ISOAbbreviation>Nanotechnology</ISOAbbreviation></Journal><ArticleTitle>RF-sputtering preparation of gold-nanoparticle-modified ITO electrodes for electrocatalytic applications.</ArticleTitle><Pagination><MedlinePgn>275711</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1088/0957-4484/22/27/275711</ELocationID><Abstract><AbstractText>The preparation of gold-nanoparticle (AuNPs)-modified indium tin oxide (ITO) electrodes (AuNPs/ITO) was performed by radio-frequency (RF) sputtering from Ar plasmas at temperatures as low as 60 °C, tailoring the AuNP morphology and content as a function of the sole sputtering time. The latter parameter was varied from 5 to 20 min in order to investigate the influence of gold amount and distribution on the electrochemical performances of the resulting AuNPs/ITO systems. The electrodes were characterized using field emission-scanning electron microscopy (FE-SEM), UV-vis absorption and x-ray photoelectron spectroscopies (XPS); moreover variable scan rate cyclic voltammetry (CV) studies were performed to examine their electrochemical behavior. The electrocatalytic activity of the nanostructured AuNPs/ITO electrodes toward methanol oxidation was investigated and compared with a continuous gold film (Aufilm/ITO). The catalytic efficiency of the AuNPs/ITO systems was found to increase with the gold content and the AuNPs-support boundary region in the corresponding samples. For the longest sputtering time (i.e. 20 min) the performances of the nanostructured electrode were better than the Aufilm/ITO reference, despite the much lower catalyst amount. Furthermore, conversely from the AuNPs/ITO samples, in the Au(film)/ITO case the gold film displayed a poor adhesion to the substrate and the electrode could be used only for a limited number of electrochemical cycles.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Ballarin</LastName><ForeName>B</ForeName><Initials>B</Initials><Affiliation>Dipartimento di Chimica Fisica ed Inorganica, Università di Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy. barbara.ballarin@ms.fci.unibo.it</Affiliation></Author><Author ValidYN="Y"><LastName>Cassani</LastName><ForeName>M C</ForeName><Initials>MC</Initials></Author><Author ValidYN="Y"><LastName>Maccato</LastName><ForeName>C</ForeName><Initials>C</Initials></Author><Author ValidYN="Y"><LastName>Gasparotto</LastName><ForeName>A</ForeName><Initials>A</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType>Journal Article</PublicationType><PublicationType>Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2011</Year><Month>05</Month><Day>24</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Nanotechnology</MedlineTA><NlmUniqueID>101241272</NlmUniqueID><ISSNLinking>0957-4484</ISSNLinking></MedlineJournalInfo></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="aheadofprint"><Year>2011</Year><Month>5</Month><Day>24</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2011</Year><Month>5</Month><Day>25</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2011</Year><Month>5</Month><Day>25</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2011</Year><Month>5</Month><Day>25</Day><Hour>6</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pii">S0957-4484(11)84006-7</ArticleId><ArticleId IdType="doi">10.1088/0957-4484/22/27/275711</ArticleId><ArticleId IdType="pubmed">21606565</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=IndiumV2/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001178 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 001178 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= *** parameter Area/wikiCode missing ***
|area= IndiumV2
|flux= Main
|étape= Exploration
|type= RBID
|clé= pubmed:21606565
|texte= RF-sputtering preparation of gold-nanoparticle-modified ITO electrodes for electrocatalytic applications.
}}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Exploration/RBID.i -Sk "pubmed:21606565" \
| HfdSelect -Kh $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd \
| NlmPubMed2Wicri -a IndiumV2
| This area was generated with Dilib version V0.5.76. |  |