Indium hydroxide to bixbyite-type indium oxide transition probed in situ by time resolved synchrotron radiation.
Identifieur interne : 001E19 ( Main/Exploration ); précédent : 001E18; suivant : 001E20Indium hydroxide to bixbyite-type indium oxide transition probed in situ by time resolved synchrotron radiation.
Auteurs : RBID : pubmed:19893157Abstract
The understanding of the transformation mechanism involved in the dehydroxylation reactions in the In-O-H system exhibits large controversy and discrepancy; it holds especially for the formation of the metastable nanosized intermediates as well as for the structural relation between corresponding phases. It was recently reported that indium oxohydroxide (InOOH) appears as an intermediate phase in the thermal dehydroxylation of nanoscaled In(OH)(3). Our in situ time resolved high energy synchrotron radiation experiments showed unambiguously that no intermediate crystalline or amorphous phases have been observed during the phase transition (dehydroxylation) from nanosized indium hydroxide to indium oxide. Under our experimental conditions, the c-In(OH)(3) to bixbyite-type In(2)O(3) transition was observed between 280 and 305 degrees C and the conversion completed around 305 degrees C without any observable intermediates. The formation of InOOH during the phase transition In(OH)(3)-->bixbyite-type In(2)O(3) can be ruled out. This finding is of high relevance and importance for the controllable synthesis of nanocrystalline In(2)O(3)-based materials.
DOI: 10.1088/0957-4484/20/49/495702
PubMed: 19893157
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It was recently reported that indium oxohydroxide (InOOH) appears as an intermediate phase in the thermal dehydroxylation of nanoscaled In(OH)(3). Our in situ time resolved high energy synchrotron radiation experiments showed unambiguously that no intermediate crystalline or amorphous phases have been observed during the phase transition (dehydroxylation) from nanosized indium hydroxide to indium oxide. Under our experimental conditions, the c-In(OH)(3) to bixbyite-type In(2)O(3) transition was observed between 280 and 305 degrees C and the conversion completed around 305 degrees C without any observable intermediates. The formation of InOOH during the phase transition In(OH)(3)-->bixbyite-type In(2)O(3) can be ruled out. This finding is of high relevance and importance for the controllable synthesis of nanocrystalline In(2)O(3)-based materials.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="PubMed-not-MEDLINE"><PMID Version="1">19893157</PMID><DateCreated><Year>2009</Year><Month>11</Month><Day>11</Day></DateCreated><DateCompleted><Year>2010</Year><Month>01</Month><Day>28</Day></DateCompleted><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1361-6528</ISSN><JournalIssue CitedMedium="Internet"><Volume>20</Volume><Issue>49</Issue><PubDate><Year>2009</Year><Month>Dec</Month><Day>9</Day></PubDate></JournalIssue><Title>Nanotechnology</Title><ISOAbbreviation>Nanotechnology</ISOAbbreviation></Journal><ArticleTitle>Indium hydroxide to bixbyite-type indium oxide transition probed in situ by time resolved synchrotron radiation.</ArticleTitle><Pagination><MedlinePgn>495702</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1088/0957-4484/20/49/495702</ELocationID><Abstract><AbstractText>The understanding of the transformation mechanism involved in the dehydroxylation reactions in the In-O-H system exhibits large controversy and discrepancy; it holds especially for the formation of the metastable nanosized intermediates as well as for the structural relation between corresponding phases. It was recently reported that indium oxohydroxide (InOOH) appears as an intermediate phase in the thermal dehydroxylation of nanoscaled In(OH)(3). Our in situ time resolved high energy synchrotron radiation experiments showed unambiguously that no intermediate crystalline or amorphous phases have been observed during the phase transition (dehydroxylation) from nanosized indium hydroxide to indium oxide. Under our experimental conditions, the c-In(OH)(3) to bixbyite-type In(2)O(3) transition was observed between 280 and 305 degrees C and the conversion completed around 305 degrees C without any observable intermediates. The formation of InOOH during the phase transition In(OH)(3)-->bixbyite-type In(2)O(3) can be ruled out. This finding is of high relevance and importance for the controllable synthesis of nanocrystalline In(2)O(3)-based materials.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Schlicker</LastName><ForeName>L</ForeName><Initials>L</Initials><Affiliation>Technische Universitaet Darmstadt, Fachbereich Material- und Geowissenschaften, Petersenstrasse 23, D-64287 Darmstadt, Germany.</Affiliation></Author><Author ValidYN="Y"><LastName>Riedel</LastName><ForeName>R</ForeName><Initials>R</Initials></Author><Author ValidYN="Y"><LastName>Gurlo</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>2009</Year><Month>11</Month><Day>06</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>2009</Year><Month>11</Month><Day>06</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2009</Year><Month>11</Month><Day>7</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2009</Year><Month>11</Month><Day>7</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2009</Year><Month>11</Month><Day>7</Day><Hour>6</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pii">S0957-4484(09)28813-1</ArticleId><ArticleId IdType="doi">10.1088/0957-4484/20/49/495702</ArticleId><ArticleId IdType="pubmed">19893157</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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