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Anion effect on the structure of Ag2S–AgPO3 superionic glasses

Kartini, Evvy and Kennedy, S.J. and Itoh, K. and Kamiyama, T. and Collins, MF and Suminta, Supardi (2004) Anion effect on the structure of Ag2S–AgPO3 superionic glasses. Solid State Ionics, 167 (1-2). pp. 65-71. ISSN 01672738

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We report on time-of-flight neutron diffraction data measured on superionic-conducting glasses (Ag2S)x(AgPO3)1− x with x=0.5 and 0.7 at room temperature via the High-Intensity Total Scattering (HIT-II) instrument at KENS and we contrast the results with AgPO3, (AgI)0.5(AgPO3)0.5 and (AgI)0.33(Ag2S)0.33(AgPO3)0.34 glasses. The structure factor of (AgI)0.5(AgPO3)0.5 shows a strong prepeak at low Q∼0.8 Å−1 in contrast to the undoped glass AgPO3 where there is no prepeak. In the Ag2S–AgPO3 system the prepeak appears only very weakly and the difference between radial distribution function (RDF) of doped and undoped glasses show peaks at 2.15, 2.55, 2.75 and 3.0 Å, corresponding to PS, AgS, SS and SO distances, respectively. Both doped systems form superionic-conducting glasses, but the sulfide ion is largely incorporated into the phosphate tetrahedra, breaking down the corner-sharing chains into discrete PSO3 tetrahedra.

Item Type: Article
Subjects: Daur Bahan Bakar Nuklir dan Bahan Maju > Bahan Struktur dan Bahan Maju > Teknik Sintesis Bahan Maju
Divisions: Pusat Sains dan Teknologi Bahan Maju
Date Deposited: 01 Dec 2018 11:33
Last Modified: 01 Dec 2018 11:33
URI: http://repo-nkm.batan.go.id/id/eprint/7049

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