Mesoporous germanium nanoparticles synthesized in molten zinc chloride at low temperature as a high-performance anode for lithium-ion batteriesElectronic supplementary information (ESI) available: Experimental section; auxiliary analysis such as the XRD and SEM of the commercial Ge and Mg2Ge; XRD of raw products and simulated kinetic parameter of the as-prepared mp-Ge NPs. See DOI: 10.1039/c8dt01060a

Mesoporous germanium nanoparticles synthesized in molten zinc chloride at low temperature as a... In a simple and convenient way, mesoporous germanium nanoparticles (mp-Ge NPs) are prepared by a metathesis reaction of magnesium germanide (Mg2Ge) and zinc chloride (ZnCl2) in an autoclave at 300 C. Investigated as anode materials for lithium-ion batteries, the prepared mp-Ge NPs exhibit a high capacity retention of 1048 mA h g1 at 1 C after 1000 cycles and a high rate capacity of 727.1 mA h g1 at 10 C in LiGe half cells. Additionally, a 3.4 V lithium-ion full cell (Ge-LiCoO2) with an energy retention of 85% (268.8 W h kg1) over 100 cycles is achieved. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Dalton Transactions Royal Society of Chemistry

Mesoporous germanium nanoparticles synthesized in molten zinc chloride at low temperature as a high-performance anode for lithium-ion batteriesElectronic supplementary information (ESI) available: Experimental section; auxiliary analysis such as the XRD and SEM of the commercial Ge and Mg2Ge; XRD of raw products and simulated kinetic parameter of the as-prepared mp-Ge NPs. See DOI: 10.1039/c8dt01060a

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Publisher
Royal Society of Chemistry
Copyright
This journal is © The Royal Society of Chemistry
ISSN
1477-9226
eISSN
1477-9234
D.O.I.
10.1039/c8dt01060a
Publisher site
See Article on Publisher Site

Abstract

In a simple and convenient way, mesoporous germanium nanoparticles (mp-Ge NPs) are prepared by a metathesis reaction of magnesium germanide (Mg2Ge) and zinc chloride (ZnCl2) in an autoclave at 300 C. Investigated as anode materials for lithium-ion batteries, the prepared mp-Ge NPs exhibit a high capacity retention of 1048 mA h g1 at 1 C after 1000 cycles and a high rate capacity of 727.1 mA h g1 at 10 C in LiGe half cells. Additionally, a 3.4 V lithium-ion full cell (Ge-LiCoO2) with an energy retention of 85% (268.8 W h kg1) over 100 cycles is achieved.

Journal

Dalton TransactionsRoyal Society of Chemistry

Published: May 17, 2018

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