Microwave-assisted selective preparation and characterization of Li 21Si5 and Li17Sn4

Gen Tao Zhou; Oleg Palchik; Israel Nowik; R. Herber; Yuri Koltypin; Aharon Gedanken

doi:10.1016/j.jssc.2004.04.045

Microwave-assisted selective preparation and characterization of Li ₂₁Si₅ and Li₁₇Sn₄

Gen Tao Zhou, Oleg Palchik, Israel Nowik, R. Herber, Yuri Koltypin, Aharon Gedanken

Department of Chemistry

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

16 Scopus citations

Abstract

Two types of intermetallic lithium alloys, Li₂₁Si₅ and Li₁₇Sn₄ (previously Li₂₂Si₅ and Li₂₂Sn₅), were prepared for the first time using microwave-assisted solid-state reaction. The optimum oven power for their preparation is 80-60%, and the irradiation times are 5min for Li ₂₁Si₅ or 10min for Li₁₇Sn₄. A cheap alumina crucible was found to be the most suitable container in quick (less than 10min) microwave reactions for Li-containing alloys. The synthesized compounds were characterized by PXRD. Mössbauer spectroscopy was used to characterize Li₁₇Sn₄ under different conditions. The hyperfine interaction parameters of ¹¹⁹Sn in Li₁₇Sn₄ show a typical Li-Sn alloy Sn isomer shift (1.88mm/s). The oxidization processes of the two intermetallic lithium alloys in air were investigated. The microwave method was found to be simple, fast and efficient, with high selectivity for the preparation of these compounds.

Original language	English
Pages (from-to)	3014-3020
Number of pages	7
Journal	Journal of Solid State Chemistry
Volume	177
Issue number	9
DOIs	https://doi.org/10.1016/j.jssc.2004.04.045
State	Published - Sep 2004

Bibliographical note

Funding Information:
Dr. G.-T. Zhou thanks the Fred and Barbara Kort Postdoctoral Fellowship Foundation for financial support and the China Scholarship Council for its support. Prof. A. Gedanken thanks the EC for a research grant ENK6-CT-1999-00006, awarded through the 5th Program to a consortium entitled NanoBatt.

Funding

Dr. G.-T. Zhou thanks the Fred and Barbara Kort Postdoctoral Fellowship Foundation for financial support and the China Scholarship Council for its support. Prof. A. Gedanken thanks the EC for a research grant ENK6-CT-1999-00006, awarded through the 5th Program to a consortium entitled NanoBatt.

Funders	Funder number
5th Program
Fred and Barbara Kort Postdoctoral Fellowship Foundation
European Commission	ENK6-CT-1999-00006
China Scholarship Council

Keywords

Intermetallic alloy
Microwave radiation
Solid-state reaction

Access to Document

10.1016/j.jssc.2004.04.045

Cite this

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title = "Microwave-assisted selective preparation and characterization of Li 21Si5 and Li17Sn4",

abstract = "Two types of intermetallic lithium alloys, Li21Si5 and Li17Sn4 (previously Li22Si5 and Li22Sn5), were prepared for the first time using microwave-assisted solid-state reaction. The optimum oven power for their preparation is 80-60%, and the irradiation times are 5min for Li 21Si5 or 10min for Li17Sn4. A cheap alumina crucible was found to be the most suitable container in quick (less than 10min) microwave reactions for Li-containing alloys. The synthesized compounds were characterized by PXRD. M{\"o}ssbauer spectroscopy was used to characterize Li17Sn4 under different conditions. The hyperfine interaction parameters of 119Sn in Li17Sn4 show a typical Li-Sn alloy Sn isomer shift (1.88mm/s). The oxidization processes of the two intermetallic lithium alloys in air were investigated. The microwave method was found to be simple, fast and efficient, with high selectivity for the preparation of these compounds.",

keywords = "Intermetallic alloy, Microwave radiation, Solid-state reaction",

author = "Zhou, {Gen Tao} and Oleg Palchik and Israel Nowik and R. Herber and Yuri Koltypin and Aharon Gedanken",

note = "Funding Information: Dr. G.-T. Zhou thanks the Fred and Barbara Kort Postdoctoral Fellowship Foundation for financial support and the China Scholarship Council for its support. Prof. A. Gedanken thanks the EC for a research grant ENK6-CT-1999-00006, awarded through the 5th Program to a consortium entitled NanoBatt. ",

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AU - Zhou, Gen Tao

AU - Palchik, Oleg

AU - Nowik, Israel

AU - Herber, R.

AU - Koltypin, Yuri

AU - Gedanken, Aharon

N1 - Funding Information: Dr. G.-T. Zhou thanks the Fred and Barbara Kort Postdoctoral Fellowship Foundation for financial support and the China Scholarship Council for its support. Prof. A. Gedanken thanks the EC for a research grant ENK6-CT-1999-00006, awarded through the 5th Program to a consortium entitled NanoBatt.

PY - 2004/9

Y1 - 2004/9

N2 - Two types of intermetallic lithium alloys, Li21Si5 and Li17Sn4 (previously Li22Si5 and Li22Sn5), were prepared for the first time using microwave-assisted solid-state reaction. The optimum oven power for their preparation is 80-60%, and the irradiation times are 5min for Li 21Si5 or 10min for Li17Sn4. A cheap alumina crucible was found to be the most suitable container in quick (less than 10min) microwave reactions for Li-containing alloys. The synthesized compounds were characterized by PXRD. Mössbauer spectroscopy was used to characterize Li17Sn4 under different conditions. The hyperfine interaction parameters of 119Sn in Li17Sn4 show a typical Li-Sn alloy Sn isomer shift (1.88mm/s). The oxidization processes of the two intermetallic lithium alloys in air were investigated. The microwave method was found to be simple, fast and efficient, with high selectivity for the preparation of these compounds.

AB - Two types of intermetallic lithium alloys, Li21Si5 and Li17Sn4 (previously Li22Si5 and Li22Sn5), were prepared for the first time using microwave-assisted solid-state reaction. The optimum oven power for their preparation is 80-60%, and the irradiation times are 5min for Li 21Si5 or 10min for Li17Sn4. A cheap alumina crucible was found to be the most suitable container in quick (less than 10min) microwave reactions for Li-containing alloys. The synthesized compounds were characterized by PXRD. Mössbauer spectroscopy was used to characterize Li17Sn4 under different conditions. The hyperfine interaction parameters of 119Sn in Li17Sn4 show a typical Li-Sn alloy Sn isomer shift (1.88mm/s). The oxidization processes of the two intermetallic lithium alloys in air were investigated. The microwave method was found to be simple, fast and efficient, with high selectivity for the preparation of these compounds.

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KW - Microwave radiation

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