Study of the hydration level in proton conducting oxides using neutron diffraction with polarization analysis
Artikel i vetenskaplig tidskrift, 2018

We report results from neutron diffraction with polarization analysis of the effect of In dopant level on the hydrogen concentration in hydrated samples of the proton conducting perovskite type oxide BaZr1−xInxO3−x/2with x = 0, 0.175, 0.20, 0.225, 0.25, and 0.275. Analysis of the neutron data establishes a trend of increasing hydrogen concentration, which is comparable to that obtained from thermogravimetric measurements on the same samples, as well as an increased unit-cell size and local structural disorder as a function of increasing In dopant level. These results encourage further use of neutron diffraction with polarization analysis as a non-destructive technique for the determination of the total hydrogen concentration, and structural properties, of proton conducting oxides as well as other hydrogen-containing materials.

Författare

Daria Noferini

Chalmers, Fysik, Kondenserade materiens fysik

Institut Laue-Langevin

M. Koza

Institut Laue-Langevin

G. J. Nilsen

Institut Laue-Langevin

Maths Karlsson

Oorganisk miljökemi 2

Solid State Ionics

0167-2738 (ISSN)

Vol. 324 163-167

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Mekanistiska aspekter av lokal struktur och protondynamik i protonledande oxider för rena energiapplikationer

Vetenskapsrådet (VR), 2012-01-01 -- 2014-12-31.

Ämneskategorier

Oorganisk kemi

Materialkemi

Annan materialteknik

DOI

10.1016/j.ssi.2018.07.001

Mer information

Senast uppdaterat

2018-09-05