Ultra fast elemental synthesis of high yield copper Chevrel phase with high electrochemical performance

Gregory Gershinsky; Ortal Haik; Gregory Salitra; Judith Grinblat; Elena Levi; Gilbert Daniel Nessim; Ella Zinigrad; Doron Aurbach

doi:10.1016/j.jssc.2012.01.016

Ultra fast elemental synthesis of high yield copper Chevrel phase with high electrochemical performance

Gregory Gershinsky, Ortal Haik, Gregory Salitra, Judith Grinblat, Elena Levi, Gilbert Daniel Nessim, Ella Zinigrad, Doron Aurbach

Department of Chemistry

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

40 Scopus citations

Abstract

Self-propagating High-temperature Synthesis (SHS) was applied for the first time to prepare Chevrel phases, M _xMo ₆T ₈ (M=metal, T=S, Se). Combined electron microscopy and X-ray powder diffraction were used to clarify the chemical reactions in the CuMoS system. It was shown that the replacement of the frontal combustion by thermal explosion increased the Cu ₂Mo ₆S ₈ yield from 86 to 96%, while the synthesis remained ultra-fast: 1020 min in a hot furnace (1000 °C), as compared to at least 17 h of heating for the conventional solid state technique. The synthesized material conformed to the requirements of cathode precursors for Mg batteries, and its electrochemically activity was similar to that of the conventional product.

Original language	English
Pages (from-to)	50-58
Number of pages	9
Journal	Journal of Solid State Chemistry
Volume	188
DOIs	https://doi.org/10.1016/j.jssc.2012.01.016
State	Published - Apr 2012

Keywords

Chevrel phases
Cluster compounds
Combustion
Phase diagram
Self-propagating high-temperature synthesis

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10.1016/j.jssc.2012.01.016

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title = "Ultra fast elemental synthesis of high yield copper Chevrel phase with high electrochemical performance",

abstract = "Self-propagating High-temperature Synthesis (SHS) was applied for the first time to prepare Chevrel phases, M xMo 6T 8 (M=metal, T=S, Se). Combined electron microscopy and X-ray powder diffraction were used to clarify the chemical reactions in the CuMoS system. It was shown that the replacement of the frontal combustion by thermal explosion increased the Cu 2Mo 6S 8 yield from 86 to 96%, while the synthesis remained ultra-fast: 1020 min in a hot furnace (1000 °C), as compared to at least 17 h of heating for the conventional solid state technique. The synthesized material conformed to the requirements of cathode precursors for Mg batteries, and its electrochemically activity was similar to that of the conventional product.",

keywords = "Chevrel phases, Cluster compounds, Combustion, Phase diagram, Self-propagating high-temperature synthesis",

author = "Gregory Gershinsky and Ortal Haik and Gregory Salitra and Judith Grinblat and Elena Levi and {Daniel Nessim}, Gilbert and Ella Zinigrad and Doron Aurbach",

year = "2012",

month = apr,

doi = "10.1016/j.jssc.2012.01.016",

language = "אנגלית",

volume = "188",

pages = "50--58",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

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T1 - Ultra fast elemental synthesis of high yield copper Chevrel phase with high electrochemical performance

AU - Gershinsky, Gregory

AU - Haik, Ortal

AU - Salitra, Gregory

AU - Grinblat, Judith

AU - Levi, Elena

AU - Daniel Nessim, Gilbert

AU - Zinigrad, Ella

AU - Aurbach, Doron

PY - 2012/4

Y1 - 2012/4

N2 - Self-propagating High-temperature Synthesis (SHS) was applied for the first time to prepare Chevrel phases, M xMo 6T 8 (M=metal, T=S, Se). Combined electron microscopy and X-ray powder diffraction were used to clarify the chemical reactions in the CuMoS system. It was shown that the replacement of the frontal combustion by thermal explosion increased the Cu 2Mo 6S 8 yield from 86 to 96%, while the synthesis remained ultra-fast: 1020 min in a hot furnace (1000 °C), as compared to at least 17 h of heating for the conventional solid state technique. The synthesized material conformed to the requirements of cathode precursors for Mg batteries, and its electrochemically activity was similar to that of the conventional product.

AB - Self-propagating High-temperature Synthesis (SHS) was applied for the first time to prepare Chevrel phases, M xMo 6T 8 (M=metal, T=S, Se). Combined electron microscopy and X-ray powder diffraction were used to clarify the chemical reactions in the CuMoS system. It was shown that the replacement of the frontal combustion by thermal explosion increased the Cu 2Mo 6S 8 yield from 86 to 96%, while the synthesis remained ultra-fast: 1020 min in a hot furnace (1000 °C), as compared to at least 17 h of heating for the conventional solid state technique. The synthesized material conformed to the requirements of cathode precursors for Mg batteries, and its electrochemically activity was similar to that of the conventional product.

KW - Chevrel phases

KW - Cluster compounds

KW - Combustion

KW - Phase diagram

KW - Self-propagating high-temperature synthesis

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SN - 0022-4596

VL - 188

SP - 50

EP - 58

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

ER -

Ultra fast elemental synthesis of high yield copper Chevrel phase with high electrochemical performance

Abstract

Keywords

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