SwePub
Sök i LIBRIS databas

  Extended search

onr:"swepub:oai:gup.ub.gu.se/105959"
 

Search: onr:"swepub:oai:gup.ub.gu.se/105959" > Short-range structu...

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist

Short-range structure of proton-conducting perovskite BaInxZr1-xO3-x/2 (x=0-0

Karlsson, Maths (author)
Lund University,Lunds universitet,European Spallation Source ESS AB,Stiftelser och övriga anknutna verksamheter,Other Institutions and Utilities,Chalmers tekniska högskola,Chalmers University of Technology
Matic, Aleksandar, 1968 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Knee, Christopher, 1973 (author)
Chalmers tekniska högskola,Chalmers University of Technology
show more...
Ahmed, Istaq, 1972 (author)
Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,University of Gothenburg
Eriksson, Sten, 1958 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Börjesson, Lars, 1957 (author)
Chalmers tekniska högskola,Chalmers University of Technology
show less...
 (creator_code:org_t)
American Chemical Society (ACS), 2009
2009
English.
In: Chemistry of Materials. - : American Chemical Society (ACS). - 0897-4756 .- 1520-5002. ; 20:10, s. 3480-3486
Related links:
http://dx.doi.org/10...
show more...
http://arxiv.org/pdf...
https://gup.ub.gu.se...
https://lup.lub.lu.s...
https://doi.org/10.1...
https://research.cha...
show less...
  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • In a systematic study, we investigate the effect of dopant level and hydration on the short-range structure of the proton-conducting perovskite-type oxide BaInxZr1-xO3-x/2 (x = 0 - 0.75), using infrared and Raman spectroscopy. The results show that the doping leads to significant local distortions of the average cubic structure of these materials. By increasing the In concentration from x = 0 to x = 0.75, new bands appear and grow in intensity in both the IR and the Raman spectra, showing that the local distortions become successively more and more pronounced. The structural distortions are largely uncorrelated to the presence of oxygen vacancies, but instead are mainly driven by the size and charge difference between the In3+ and Zr4+ ions, which leads to displacements of the cations and to tilting of the (In/Zr)O-6 octahedra. On the basis of our results, we suggest that there is a threshold between x = 0.10 and x = 0.25 where the structural distortions propagate throughout the whole perovskite structure. Comparison of our spectroscopic data with the proton conductivity for the same materials indicates that the presence of extended structural distortions is favorable for fast proton transport.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Annan teknik -- Övrig annan teknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Other Engineering and Technologies -- Other Engineering and Technologies not elsewhere specified (hsv//eng)
TEKNIK OCH TEKNOLOGIER  -- Materialteknik -- Annan materialteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Materials Engineering -- Other Materials Engineering (hsv//eng)
NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
NATURVETENSKAP  -- Kemi -- Materialkemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Materials Chemistry (hsv//eng)

Publication and Content Type

ref (subject category)
art (subject category)

Find in a library

To the university's database

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Close

Copy and save the link in order to return to this view