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One-pot coating of LiCoPO(4)/C by a UiO-66 metal–organic framework
LiCoPO(4) (LCP) is a promising high voltage cathode material but suffers from low conductivity and poor electrochemical properties. These properties can be improved by coating with a conductive carbon layer. Ongoing research is focused on the protective layer with good adhesion and inhibition of ele...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9056873/ https://www.ncbi.nlm.nih.gov/pubmed/35515686 http://dx.doi.org/10.1039/d0ra05706a |
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author | Aboraia, Abdelaziz M. Shapovalov, Viktor V. Guda, Alexnader A. Butova, Vera V. Soldatov, Alexander |
author_facet | Aboraia, Abdelaziz M. Shapovalov, Viktor V. Guda, Alexnader A. Butova, Vera V. Soldatov, Alexander |
author_sort | Aboraia, Abdelaziz M. |
collection | PubMed |
description | LiCoPO(4) (LCP) is a promising high voltage cathode material but suffers from low conductivity and poor electrochemical properties. These properties can be improved by coating with a conductive carbon layer. Ongoing research is focused on the protective layer with good adhesion and inhibition of electrolyte decomposition reactions. In the present work, we suggest a new robust one-pot procedure, featuring the introduction of UiO-66 metal–organic framework (MOF) nanoparticles during LCP synthesis to create a metal–carbon layer upon annealing. The LiCoPO(4)/C@UiO-66 was synthesized via the microwave-assisted solvothermal route, and 147 mA h g(−1) discharge capacity was obtained in the first cycle. The MOF acts as a source of both carbon and metal atoms, which improves conductivity. Using operando X-ray absorption spectroscopy upon cycling, we identify two Co-related phases in the sample and exclude the olivine structure degradation as an explanation for a long-term capacity fade. |
format | Online Article Text |
id | pubmed-9056873 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90568732022-05-04 One-pot coating of LiCoPO(4)/C by a UiO-66 metal–organic framework Aboraia, Abdelaziz M. Shapovalov, Viktor V. Guda, Alexnader A. Butova, Vera V. Soldatov, Alexander RSC Adv Chemistry LiCoPO(4) (LCP) is a promising high voltage cathode material but suffers from low conductivity and poor electrochemical properties. These properties can be improved by coating with a conductive carbon layer. Ongoing research is focused on the protective layer with good adhesion and inhibition of electrolyte decomposition reactions. In the present work, we suggest a new robust one-pot procedure, featuring the introduction of UiO-66 metal–organic framework (MOF) nanoparticles during LCP synthesis to create a metal–carbon layer upon annealing. The LiCoPO(4)/C@UiO-66 was synthesized via the microwave-assisted solvothermal route, and 147 mA h g(−1) discharge capacity was obtained in the first cycle. The MOF acts as a source of both carbon and metal atoms, which improves conductivity. Using operando X-ray absorption spectroscopy upon cycling, we identify two Co-related phases in the sample and exclude the olivine structure degradation as an explanation for a long-term capacity fade. The Royal Society of Chemistry 2020-09-23 /pmc/articles/PMC9056873/ /pubmed/35515686 http://dx.doi.org/10.1039/d0ra05706a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Aboraia, Abdelaziz M. Shapovalov, Viktor V. Guda, Alexnader A. Butova, Vera V. Soldatov, Alexander One-pot coating of LiCoPO(4)/C by a UiO-66 metal–organic framework |
title | One-pot coating of LiCoPO(4)/C by a UiO-66 metal–organic framework |
title_full | One-pot coating of LiCoPO(4)/C by a UiO-66 metal–organic framework |
title_fullStr | One-pot coating of LiCoPO(4)/C by a UiO-66 metal–organic framework |
title_full_unstemmed | One-pot coating of LiCoPO(4)/C by a UiO-66 metal–organic framework |
title_short | One-pot coating of LiCoPO(4)/C by a UiO-66 metal–organic framework |
title_sort | one-pot coating of licopo(4)/c by a uio-66 metal–organic framework |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9056873/ https://www.ncbi.nlm.nih.gov/pubmed/35515686 http://dx.doi.org/10.1039/d0ra05706a |
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