Superionic phase transition in AgI embedded in molecular sieves

S. V. Baryshnikov; Cheng Tien; E. V. Charnaya; Min-Kai Lee; D. Michel; W. Böhlmann; N. P. Andriyanova

doi:10.1088/0953-8984/20/02/025214

Superionic phase transition in AgI embedded in molecular sieves

S. V. Baryshnikov, Cheng Tien, E. V. Charnaya, Min-Kai Lee, D. Michel, W. Böhlmann, N. P. Andriyanova

Instrument Center

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

Superionic AgI particles embedded in MCM-41 and SBA-15 molecular sieves with different pore sizes were studied using NMR and dielectric methods. The measurements confirmed that the structure of the confined particles did not change noticeably compared to that in bulk AgI. A regular increase in the temperature of the superionic phase transition with decreasing pore size was observed and treated on the basis of the Landau theory of thermodynamic size effects. The maximum increase found upon warming and cooling was about 10 and 8 K, respectively. The ionic conductivity in β-AgI under confinement was shown to be due to silver mobility on the particle surface.

Original language	English
Article number	025214
Journal	Journal of Physics Condensed Matter
Volume	20
Issue number	2
DOIs	https://doi.org/10.1088/0953-8984/20/02/025214
Publication status	Published - 2008 Jan 16

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics

Access to Document

10.1088/0953-8984/20/02/025214

Cite this

@article{d64845c8d44d4b9fa87ff26dcb5dddfd,

title = "Superionic phase transition in AgI embedded in molecular sieves",

abstract = "Superionic AgI particles embedded in MCM-41 and SBA-15 molecular sieves with different pore sizes were studied using NMR and dielectric methods. The measurements confirmed that the structure of the confined particles did not change noticeably compared to that in bulk AgI. A regular increase in the temperature of the superionic phase transition with decreasing pore size was observed and treated on the basis of the Landau theory of thermodynamic size effects. The maximum increase found upon warming and cooling was about 10 and 8 K, respectively. The ionic conductivity in β-AgI under confinement was shown to be due to silver mobility on the particle surface.",

author = "Baryshnikov, {S. V.} and Cheng Tien and Charnaya, {E. V.} and Min-Kai Lee and D. Michel and W. B{\"o}hlmann and Andriyanova, {N. P.}",

year = "2008",

month = jan,

day = "16",

doi = "10.1088/0953-8984/20/02/025214",

language = "English",

volume = "20",

journal = "Journal of Physics Condensed Matter",

issn = "0953-8984",

publisher = "IOP Publishing Ltd.",

number = "2",

}

TY - JOUR

T1 - Superionic phase transition in AgI embedded in molecular sieves

AU - Baryshnikov, S. V.

AU - Tien, Cheng

AU - Charnaya, E. V.

AU - Lee, Min-Kai

AU - Michel, D.

AU - Böhlmann, W.

AU - Andriyanova, N. P.

PY - 2008/1/16

Y1 - 2008/1/16

N2 - Superionic AgI particles embedded in MCM-41 and SBA-15 molecular sieves with different pore sizes were studied using NMR and dielectric methods. The measurements confirmed that the structure of the confined particles did not change noticeably compared to that in bulk AgI. A regular increase in the temperature of the superionic phase transition with decreasing pore size was observed and treated on the basis of the Landau theory of thermodynamic size effects. The maximum increase found upon warming and cooling was about 10 and 8 K, respectively. The ionic conductivity in β-AgI under confinement was shown to be due to silver mobility on the particle surface.

AB - Superionic AgI particles embedded in MCM-41 and SBA-15 molecular sieves with different pore sizes were studied using NMR and dielectric methods. The measurements confirmed that the structure of the confined particles did not change noticeably compared to that in bulk AgI. A regular increase in the temperature of the superionic phase transition with decreasing pore size was observed and treated on the basis of the Landau theory of thermodynamic size effects. The maximum increase found upon warming and cooling was about 10 and 8 K, respectively. The ionic conductivity in β-AgI under confinement was shown to be due to silver mobility on the particle surface.

UR - http://www.scopus.com/inward/record.url?scp=43049147122&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=43049147122&partnerID=8YFLogxK

U2 - 10.1088/0953-8984/20/02/025214

DO - 10.1088/0953-8984/20/02/025214

M3 - Article

AN - SCOPUS:43049147122

SN - 0953-8984

VL - 20

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

IS - 2

M1 - 025214

ER -

Superionic phase transition in AgI embedded in molecular sieves

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this