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Production of Graphene/Inorganic Matrix Composites through the Sintering of Graphene Oxide Flakes Decorated with CuWO(4)·2H(2)O Nanoparticles

[Image: see text] There is growing interest in graphene-reinforced inorganic matrix composites, but progress in this field is far behind that of polymer matrices due to difficulties in the processing of carbon materials in aggressive sintering environments, including oxidation and solubility in the...

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Autores principales: Lin, Fei, Zhou, Yuzhen, Xu, Ruoyu, Zhou, Mingyu, Connolly, Andrew M., Young, Robert J., Kinloch, Ian A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10099426/
https://www.ncbi.nlm.nih.gov/pubmed/37065072
http://dx.doi.org/10.1021/acsomega.3c00063
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author Lin, Fei
Zhou, Yuzhen
Xu, Ruoyu
Zhou, Mingyu
Connolly, Andrew M.
Young, Robert J.
Kinloch, Ian A.
author_facet Lin, Fei
Zhou, Yuzhen
Xu, Ruoyu
Zhou, Mingyu
Connolly, Andrew M.
Young, Robert J.
Kinloch, Ian A.
author_sort Lin, Fei
collection PubMed
description [Image: see text] There is growing interest in graphene-reinforced inorganic matrix composites, but progress in this field is far behind that of polymer matrices due to difficulties in the processing of carbon materials in aggressive sintering environments, including oxidation and solubility in the host matrix. Copper–tungsten matrices are of particular interest in the power switching field but are difficult to produce due to the mutual insolubility of metals and poor wetting. Herein, composites were produced by decorating graphene oxide flakes with 8 nm diameter CuWO(4)·2H(2)O nanoparticles and then sintering them to form the final shape. The oxide nanoparticles were found to self-assemble into platelets on the surfaces of graphene flakes. Upon sintering, the presence of graphene was found to change the grain morphology from elongated needles to a polyhedral shape. It was found that, despite the nanosize of the CuWO(4)·2H(2)O particles used, the sintering conditions did not reduce the matrix to a pure metal; the sintered composites were found to be of mixed phase with copper tungstate and copper oxide present. Raman spectroscopy indicated that the graphene oxide became hydrogenated during the sintering process as a result of the reducing hydrogen atmosphere used.
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spelling pubmed-100994262023-04-14 Production of Graphene/Inorganic Matrix Composites through the Sintering of Graphene Oxide Flakes Decorated with CuWO(4)·2H(2)O Nanoparticles Lin, Fei Zhou, Yuzhen Xu, Ruoyu Zhou, Mingyu Connolly, Andrew M. Young, Robert J. Kinloch, Ian A. ACS Omega [Image: see text] There is growing interest in graphene-reinforced inorganic matrix composites, but progress in this field is far behind that of polymer matrices due to difficulties in the processing of carbon materials in aggressive sintering environments, including oxidation and solubility in the host matrix. Copper–tungsten matrices are of particular interest in the power switching field but are difficult to produce due to the mutual insolubility of metals and poor wetting. Herein, composites were produced by decorating graphene oxide flakes with 8 nm diameter CuWO(4)·2H(2)O nanoparticles and then sintering them to form the final shape. The oxide nanoparticles were found to self-assemble into platelets on the surfaces of graphene flakes. Upon sintering, the presence of graphene was found to change the grain morphology from elongated needles to a polyhedral shape. It was found that, despite the nanosize of the CuWO(4)·2H(2)O particles used, the sintering conditions did not reduce the matrix to a pure metal; the sintered composites were found to be of mixed phase with copper tungstate and copper oxide present. Raman spectroscopy indicated that the graphene oxide became hydrogenated during the sintering process as a result of the reducing hydrogen atmosphere used. American Chemical Society 2023-04-02 /pmc/articles/PMC10099426/ /pubmed/37065072 http://dx.doi.org/10.1021/acsomega.3c00063 Text en © 2023 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 Lin, Fei
Zhou, Yuzhen
Xu, Ruoyu
Zhou, Mingyu
Connolly, Andrew M.
Young, Robert J.
Kinloch, Ian A.
Production of Graphene/Inorganic Matrix Composites through the Sintering of Graphene Oxide Flakes Decorated with CuWO(4)·2H(2)O Nanoparticles
title Production of Graphene/Inorganic Matrix Composites through the Sintering of Graphene Oxide Flakes Decorated with CuWO(4)·2H(2)O Nanoparticles
title_full Production of Graphene/Inorganic Matrix Composites through the Sintering of Graphene Oxide Flakes Decorated with CuWO(4)·2H(2)O Nanoparticles
title_fullStr Production of Graphene/Inorganic Matrix Composites through the Sintering of Graphene Oxide Flakes Decorated with CuWO(4)·2H(2)O Nanoparticles
title_full_unstemmed Production of Graphene/Inorganic Matrix Composites through the Sintering of Graphene Oxide Flakes Decorated with CuWO(4)·2H(2)O Nanoparticles
title_short Production of Graphene/Inorganic Matrix Composites through the Sintering of Graphene Oxide Flakes Decorated with CuWO(4)·2H(2)O Nanoparticles
title_sort production of graphene/inorganic matrix composites through the sintering of graphene oxide flakes decorated with cuwo(4)·2h(2)o nanoparticles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10099426/
https://www.ncbi.nlm.nih.gov/pubmed/37065072
http://dx.doi.org/10.1021/acsomega.3c00063
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