Standard

Ion transport in alkaline and earth alkaline hydrogen fluorides. / Kröger, C.; Niggemeier, H.; Wiemhöfer, H. D.; Glumov, O.; Murin, I.

In: Solid State Ionics, Vol. 154-155, 02.12.2002, p. 487-495.

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

Harvard

Kröger, C, Niggemeier, H, Wiemhöfer, HD, Glumov, O & Murin, I 2002, 'Ion transport in alkaline and earth alkaline hydrogen fluorides', Solid State Ionics, vol. 154-155, pp. 487-495. https://doi.org/10.1016/S0167-2738(02)00487-3

APA

Kröger, C., Niggemeier, H., Wiemhöfer, H. D., Glumov, O., & Murin, I. (2002). Ion transport in alkaline and earth alkaline hydrogen fluorides. Solid State Ionics, 154-155, 487-495. https://doi.org/10.1016/S0167-2738(02)00487-3

Vancouver

Kröger C, Niggemeier H, Wiemhöfer HD, Glumov O, Murin I. Ion transport in alkaline and earth alkaline hydrogen fluorides. Solid State Ionics. 2002 Dec 2;154-155:487-495. https://doi.org/10.1016/S0167-2738(02)00487-3

Author

Kröger, C. ; Niggemeier, H. ; Wiemhöfer, H. D. ; Glumov, O. ; Murin, I. / Ion transport in alkaline and earth alkaline hydrogen fluorides. In: Solid State Ionics. 2002 ; Vol. 154-155. pp. 487-495.

BibTeX

@article{44da3ba16b714a23a5408ff2da6faf26,
title = "Ion transport in alkaline and earth alkaline hydrogen fluorides",
abstract = "The impedance of the hydrogen fluorides KHF2, NH4HF2 and BaHF3 was investigated as a function of temperature and in the presence of HF and H2O. A comparison of results on different electrode materials (graphite, silver, palladium, Sn|SnF2, and Sn|SnF2|LaF3) was used to elucidate the contribution of fluoride ions and protons to the net charge transport. All three investigated materials exhibited a considerable and nearly reversible increase of conductivity in the presence of gases that act as proton donors. In the case of BaHF3, the results indicate both the mobility of fluoride ions (EA=0.54 eV) as well as a net mobility of protons. The latter is explained by proton exchange due to internal acid-base reactions of the protonated anions. At ambient temperature, KHF2 only becomes conducting when exposed to HF or H2O. NH4HF2, on the other hand, shows a higher conductivity than BaHF3 already in dry atmosphere increasing less with humidity than the other two materials. This indicates an intrinsic proton mobility in NH4HF2.",
keywords = "Fluoride ion conductivity, Hydrogen fluorides, Proton conductivity",
author = "C. Kr{\"o}ger and H. Niggemeier and Wiemh{\"o}fer, {H. D.} and O. Glumov and I. Murin",
year = "2002",
month = dec,
day = "2",
doi = "10.1016/S0167-2738(02)00487-3",
language = "English",
volume = "154-155",
pages = "487--495",
journal = "Solid State Ionics",
issn = "0167-2738",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Ion transport in alkaline and earth alkaline hydrogen fluorides

AU - Kröger, C.

AU - Niggemeier, H.

AU - Wiemhöfer, H. D.

AU - Glumov, O.

AU - Murin, I.

PY - 2002/12/2

Y1 - 2002/12/2

N2 - The impedance of the hydrogen fluorides KHF2, NH4HF2 and BaHF3 was investigated as a function of temperature and in the presence of HF and H2O. A comparison of results on different electrode materials (graphite, silver, palladium, Sn|SnF2, and Sn|SnF2|LaF3) was used to elucidate the contribution of fluoride ions and protons to the net charge transport. All three investigated materials exhibited a considerable and nearly reversible increase of conductivity in the presence of gases that act as proton donors. In the case of BaHF3, the results indicate both the mobility of fluoride ions (EA=0.54 eV) as well as a net mobility of protons. The latter is explained by proton exchange due to internal acid-base reactions of the protonated anions. At ambient temperature, KHF2 only becomes conducting when exposed to HF or H2O. NH4HF2, on the other hand, shows a higher conductivity than BaHF3 already in dry atmosphere increasing less with humidity than the other two materials. This indicates an intrinsic proton mobility in NH4HF2.

AB - The impedance of the hydrogen fluorides KHF2, NH4HF2 and BaHF3 was investigated as a function of temperature and in the presence of HF and H2O. A comparison of results on different electrode materials (graphite, silver, palladium, Sn|SnF2, and Sn|SnF2|LaF3) was used to elucidate the contribution of fluoride ions and protons to the net charge transport. All three investigated materials exhibited a considerable and nearly reversible increase of conductivity in the presence of gases that act as proton donors. In the case of BaHF3, the results indicate both the mobility of fluoride ions (EA=0.54 eV) as well as a net mobility of protons. The latter is explained by proton exchange due to internal acid-base reactions of the protonated anions. At ambient temperature, KHF2 only becomes conducting when exposed to HF or H2O. NH4HF2, on the other hand, shows a higher conductivity than BaHF3 already in dry atmosphere increasing less with humidity than the other two materials. This indicates an intrinsic proton mobility in NH4HF2.

KW - Fluoride ion conductivity

KW - Hydrogen fluorides

KW - Proton conductivity

UR - http://www.scopus.com/inward/record.url?scp=0037011241&partnerID=8YFLogxK

U2 - 10.1016/S0167-2738(02)00487-3

DO - 10.1016/S0167-2738(02)00487-3

M3 - Article

AN - SCOPUS:0037011241

VL - 154-155

SP - 487

EP - 495

JO - Solid State Ionics

JF - Solid State Ionics

SN - 0167-2738

ER -

ID: 52786222