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Magnesiothermic Reduction‐Enabled Synthesis of Si−Ge Alloy Nanoparticles with a Canyon‐Like Surface Structure for Li−Ion Battery
Author(s) -
Ahn Jihoon,
Kim Bokyung,
Jang Gyumin,
Moon Jooho
Publication year - 2018
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201800756
Subject(s) - materials science , anode , alloy , battery (electricity) , nanostructure , nanomaterials , canyon , nanoparticle , porosity , nanotechnology , silicon , chemical engineering , metallurgy , composite material , electrode , chemistry , power (physics) , physics , cartography , quantum mechanics , geography , engineering
A new strategy is proposed to synthesize a Si−Ge alloy nanomaterial for a Li‐ion battery anode. Magnesiothermic reduction of the SiO 2 −GeO 2 composite parent material could provide a nanostructured Si−Ge alloy material with unique canyon‐like surface porosity. The nanostructure of Si−Ge alloys could be intentionally controlled and the resulting canyon‐like porous Si−Ge nanoparticle could be successfully utilized as an anode material, achieving satisfactory cell performance. The proposed synthetic approach can potentially scale‐up the production of Si−Ge alloy nanomaterial.