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One-Step Grown Carbonaceous Germanium Nanowires and Their Application as Highly Efficient Lithium-Ion Battery Anodes

[Image: see text] Developing a simple, cheap, and scalable synthetic method for the fabrication of functional nanomaterials is crucial. Carbon-based nanowire nanocomposites could play a key role in integrating group IV semiconducting nanomaterials as anodes into Li-ion batteries. Here, we report a v...

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Autores principales: Garcia, Adrià, Biswas, Subhajit, McNulty, David, Roy, Ahin, Raha, Sreyan, Trabesinger, Sigita, Nicolosi, Valeria, Singha, Achintya, Holmes, Justin D.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8889535/
https://www.ncbi.nlm.nih.gov/pubmed/35252775
http://dx.doi.org/10.1021/acsaem.1c03404
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author Garcia, Adrià
Biswas, Subhajit
McNulty, David
Roy, Ahin
Raha, Sreyan
Trabesinger, Sigita
Nicolosi, Valeria
Singha, Achintya
Holmes, Justin D.
author_facet Garcia, Adrià
Biswas, Subhajit
McNulty, David
Roy, Ahin
Raha, Sreyan
Trabesinger, Sigita
Nicolosi, Valeria
Singha, Achintya
Holmes, Justin D.
author_sort Garcia, Adrià
collection PubMed
description [Image: see text] Developing a simple, cheap, and scalable synthetic method for the fabrication of functional nanomaterials is crucial. Carbon-based nanowire nanocomposites could play a key role in integrating group IV semiconducting nanomaterials as anodes into Li-ion batteries. Here, we report a very simple, one-pot solvothermal-like growth of carbonaceous germanium (C-Ge) nanowires in a supercritical solvent. C-Ge nanowires are grown just by heating (380–490 °C) a commercially sourced Ge precursor, diphenylgermane (DPG), in supercritical toluene, without any external catalysts or surfactants. The self-seeded nanowires are highly crystalline and very thin, with an average diameter between 11 and 19 nm. The amorphous carbonaceous layer coating on Ge nanowires is formed from the polymerization and condensation of light carbon compounds generated from the decomposition of DPG during the growth process. These carbonaceous Ge nanowires demonstrate impressive electrochemical performance as an anode material for Li-ion batteries with high specific charge values (>1200 mAh g(–1) after 500 cycles), greater than most of the previously reported for other “binder-free” Ge nanowire anode materials, and exceptionally stable capacity retention. The high specific charge values and impressively stable capacity are due to the unique morphology and composition of the nanowires.
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spelling pubmed-88895352022-03-02 One-Step Grown Carbonaceous Germanium Nanowires and Their Application as Highly Efficient Lithium-Ion Battery Anodes Garcia, Adrià Biswas, Subhajit McNulty, David Roy, Ahin Raha, Sreyan Trabesinger, Sigita Nicolosi, Valeria Singha, Achintya Holmes, Justin D. ACS Appl Energy Mater [Image: see text] Developing a simple, cheap, and scalable synthetic method for the fabrication of functional nanomaterials is crucial. Carbon-based nanowire nanocomposites could play a key role in integrating group IV semiconducting nanomaterials as anodes into Li-ion batteries. Here, we report a very simple, one-pot solvothermal-like growth of carbonaceous germanium (C-Ge) nanowires in a supercritical solvent. C-Ge nanowires are grown just by heating (380–490 °C) a commercially sourced Ge precursor, diphenylgermane (DPG), in supercritical toluene, without any external catalysts or surfactants. The self-seeded nanowires are highly crystalline and very thin, with an average diameter between 11 and 19 nm. The amorphous carbonaceous layer coating on Ge nanowires is formed from the polymerization and condensation of light carbon compounds generated from the decomposition of DPG during the growth process. These carbonaceous Ge nanowires demonstrate impressive electrochemical performance as an anode material for Li-ion batteries with high specific charge values (>1200 mAh g(–1) after 500 cycles), greater than most of the previously reported for other “binder-free” Ge nanowire anode materials, and exceptionally stable capacity retention. The high specific charge values and impressively stable capacity are due to the unique morphology and composition of the nanowires. American Chemical Society 2022-01-19 2022-02-28 /pmc/articles/PMC8889535/ /pubmed/35252775 http://dx.doi.org/10.1021/acsaem.1c03404 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Garcia, Adrià
Biswas, Subhajit
McNulty, David
Roy, Ahin
Raha, Sreyan
Trabesinger, Sigita
Nicolosi, Valeria
Singha, Achintya
Holmes, Justin D.
One-Step Grown Carbonaceous Germanium Nanowires and Their Application as Highly Efficient Lithium-Ion Battery Anodes
title One-Step Grown Carbonaceous Germanium Nanowires and Their Application as Highly Efficient Lithium-Ion Battery Anodes
title_full One-Step Grown Carbonaceous Germanium Nanowires and Their Application as Highly Efficient Lithium-Ion Battery Anodes
title_fullStr One-Step Grown Carbonaceous Germanium Nanowires and Their Application as Highly Efficient Lithium-Ion Battery Anodes
title_full_unstemmed One-Step Grown Carbonaceous Germanium Nanowires and Their Application as Highly Efficient Lithium-Ion Battery Anodes
title_short One-Step Grown Carbonaceous Germanium Nanowires and Their Application as Highly Efficient Lithium-Ion Battery Anodes
title_sort one-step grown carbonaceous germanium nanowires and their application as highly efficient lithium-ion battery anodes
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8889535/
https://www.ncbi.nlm.nih.gov/pubmed/35252775
http://dx.doi.org/10.1021/acsaem.1c03404
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