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Co(2)P(2)O(7) Microplate/Bacterial Cellulose–Derived Carbon Nanofiber Composites with Enhanced Electrochemical Performance

Nanocrystalline Co(2)P(2)O(7) and carbon nanofiber (Co(2)P(2)O(7)/CNFs) composites with enhanced electrochemical performance were obtained by calcination after a hydrothermal process with NH(4)CoPO(4)∙H(2)O/bacterial cellulose precursors under an argon atmosphere. SEM images showed that the CNFs wer...

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Autores principales: Wannasen, Likkhasit, Mongkolthanaruk, Wiyada, Swatsitang, Ekaphan, Pavasant, Prasert, Pinitsoontorn, Supree
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8400182/
https://www.ncbi.nlm.nih.gov/pubmed/34443845
http://dx.doi.org/10.3390/nano11082015
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author Wannasen, Likkhasit
Mongkolthanaruk, Wiyada
Swatsitang, Ekaphan
Pavasant, Prasert
Pinitsoontorn, Supree
author_facet Wannasen, Likkhasit
Mongkolthanaruk, Wiyada
Swatsitang, Ekaphan
Pavasant, Prasert
Pinitsoontorn, Supree
author_sort Wannasen, Likkhasit
collection PubMed
description Nanocrystalline Co(2)P(2)O(7) and carbon nanofiber (Co(2)P(2)O(7)/CNFs) composites with enhanced electrochemical performance were obtained by calcination after a hydrothermal process with NH(4)CoPO(4)∙H(2)O/bacterial cellulose precursors under an argon atmosphere. SEM images showed that the CNFs were highly dispersed on the surfaces of Co(2)P(2)O(7) microplates. The diagonal size of the Co(2)P(2)O(7) plates ranged from 5 to 25 µm with thicknesses on a nanometer scale. Notably, with the optimal calcining temperature, the Co(2)P(2)O(7)/CNFs@600 material has higher specific micropore and mesopore surface areas than other samples, and a maximal specific capacitance of 209.9 F g(−1), at a current density of 0.5 A g(−1). Interestingly, CNF composite electrodes can enhance electrochemical properties, and contribute to better electrical conductivity and electron transfer. EIS measurements showed that the charge–transfer resistance (R(ct)) of the CNF composite electrodes decreased with increasing calcination temperature. Furthermore, the Co(2)P(2)O(7)/CNF electrodes exhibited higher energy and power densities than Co(2)P(2)O(7) electrodes.
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spelling pubmed-84001822021-08-29 Co(2)P(2)O(7) Microplate/Bacterial Cellulose–Derived Carbon Nanofiber Composites with Enhanced Electrochemical Performance Wannasen, Likkhasit Mongkolthanaruk, Wiyada Swatsitang, Ekaphan Pavasant, Prasert Pinitsoontorn, Supree Nanomaterials (Basel) Article Nanocrystalline Co(2)P(2)O(7) and carbon nanofiber (Co(2)P(2)O(7)/CNFs) composites with enhanced electrochemical performance were obtained by calcination after a hydrothermal process with NH(4)CoPO(4)∙H(2)O/bacterial cellulose precursors under an argon atmosphere. SEM images showed that the CNFs were highly dispersed on the surfaces of Co(2)P(2)O(7) microplates. The diagonal size of the Co(2)P(2)O(7) plates ranged from 5 to 25 µm with thicknesses on a nanometer scale. Notably, with the optimal calcining temperature, the Co(2)P(2)O(7)/CNFs@600 material has higher specific micropore and mesopore surface areas than other samples, and a maximal specific capacitance of 209.9 F g(−1), at a current density of 0.5 A g(−1). Interestingly, CNF composite electrodes can enhance electrochemical properties, and contribute to better electrical conductivity and electron transfer. EIS measurements showed that the charge–transfer resistance (R(ct)) of the CNF composite electrodes decreased with increasing calcination temperature. Furthermore, the Co(2)P(2)O(7)/CNF electrodes exhibited higher energy and power densities than Co(2)P(2)O(7) electrodes. MDPI 2021-08-06 /pmc/articles/PMC8400182/ /pubmed/34443845 http://dx.doi.org/10.3390/nano11082015 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wannasen, Likkhasit
Mongkolthanaruk, Wiyada
Swatsitang, Ekaphan
Pavasant, Prasert
Pinitsoontorn, Supree
Co(2)P(2)O(7) Microplate/Bacterial Cellulose–Derived Carbon Nanofiber Composites with Enhanced Electrochemical Performance
title Co(2)P(2)O(7) Microplate/Bacterial Cellulose–Derived Carbon Nanofiber Composites with Enhanced Electrochemical Performance
title_full Co(2)P(2)O(7) Microplate/Bacterial Cellulose–Derived Carbon Nanofiber Composites with Enhanced Electrochemical Performance
title_fullStr Co(2)P(2)O(7) Microplate/Bacterial Cellulose–Derived Carbon Nanofiber Composites with Enhanced Electrochemical Performance
title_full_unstemmed Co(2)P(2)O(7) Microplate/Bacterial Cellulose–Derived Carbon Nanofiber Composites with Enhanced Electrochemical Performance
title_short Co(2)P(2)O(7) Microplate/Bacterial Cellulose–Derived Carbon Nanofiber Composites with Enhanced Electrochemical Performance
title_sort co(2)p(2)o(7) microplate/bacterial cellulose–derived carbon nanofiber composites with enhanced electrochemical performance
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8400182/
https://www.ncbi.nlm.nih.gov/pubmed/34443845
http://dx.doi.org/10.3390/nano11082015
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