Simultaneous synthesis of graphite-like and amorphous carbon materials via solution plasma and their evaluation as additive materials for cathode in Li–O2 battery

Abstract Cathode materials are essential for enhancing electrocatalytic activity in energy-conversion devices. Carbon is one of the most suitable cathodic materials for Li–O2 batteries owing to its chemical and thermal stability. Carbon materials synthesized from tributyl borate (TBB) using a nonthe...

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Autores principales:	Chayanaphat Chokradjaroen, Hiroko Watanabe, Takahiro Ishii, Takahiro Ishizaki
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/df8db5c24dba48d3b4d8ee06f8f13b29
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spelling	oai:doaj.org-article:df8db5c24dba48d3b4d8ee06f8f13b292021-12-02T17:05:45ZSimultaneous synthesis of graphite-like and amorphous carbon materials via solution plasma and their evaluation as additive materials for cathode in Li–O2 battery10.1038/s41598-021-85392-22045-2322https://doaj.org/article/df8db5c24dba48d3b4d8ee06f8f13b292021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-85392-2https://doaj.org/toc/2045-2322Abstract Cathode materials are essential for enhancing electrocatalytic activity in energy-conversion devices. Carbon is one of the most suitable cathodic materials for Li–O2 batteries owing to its chemical and thermal stability. Carbon materials synthesized from tributyl borate (TBB) using a nonthermal solution plasma method were characterized using x‐ray diffraction, Raman, field emission scanning electron microscopy (FE-SEM), transmission electron microscopy, and x-ray photoelectron spectroscopy and were evaluated as additive materials for cathodes in a Li–O2 battery. Two separate carbon materials were formed at the same time, a carbon dispersed in solution and a carbon precipitate at the bottom of the reactor, which had amorphous and graphite-like structures, respectively. The amorphous carbon contained boron and tungsten carbide, and the graphite-like carbon had more defects and electronic conductivity. The crystallinity and density of defects in the graphite-like carbon could be tuned by changing the SP operating frequency. The Li–O2 battery with the amorphous carbon containing boron and tungsten carbide was found to have a high capacity, while the one with the graphite-like carbon showed an affinity for the formation of Li2O2, which is the desired discharge product, and exhibited high cycling performance.Chayanaphat ChokradjaroenHiroko WatanabeTakahiro IshiiTakahiro IshizakiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chayanaphat Chokradjaroen Hiroko Watanabe Takahiro Ishii Takahiro Ishizaki Simultaneous synthesis of graphite-like and amorphous carbon materials via solution plasma and their evaluation as additive materials for cathode in Li–O2 battery
description	Abstract Cathode materials are essential for enhancing electrocatalytic activity in energy-conversion devices. Carbon is one of the most suitable cathodic materials for Li–O2 batteries owing to its chemical and thermal stability. Carbon materials synthesized from tributyl borate (TBB) using a nonthermal solution plasma method were characterized using x‐ray diffraction, Raman, field emission scanning electron microscopy (FE-SEM), transmission electron microscopy, and x-ray photoelectron spectroscopy and were evaluated as additive materials for cathodes in a Li–O2 battery. Two separate carbon materials were formed at the same time, a carbon dispersed in solution and a carbon precipitate at the bottom of the reactor, which had amorphous and graphite-like structures, respectively. The amorphous carbon contained boron and tungsten carbide, and the graphite-like carbon had more defects and electronic conductivity. The crystallinity and density of defects in the graphite-like carbon could be tuned by changing the SP operating frequency. The Li–O2 battery with the amorphous carbon containing boron and tungsten carbide was found to have a high capacity, while the one with the graphite-like carbon showed an affinity for the formation of Li2O2, which is the desired discharge product, and exhibited high cycling performance.
format	article
author	Chayanaphat Chokradjaroen Hiroko Watanabe Takahiro Ishii Takahiro Ishizaki
author_facet	Chayanaphat Chokradjaroen Hiroko Watanabe Takahiro Ishii Takahiro Ishizaki
author_sort	Chayanaphat Chokradjaroen
title	Simultaneous synthesis of graphite-like and amorphous carbon materials via solution plasma and their evaluation as additive materials for cathode in Li–O2 battery
title_short	Simultaneous synthesis of graphite-like and amorphous carbon materials via solution plasma and their evaluation as additive materials for cathode in Li–O2 battery
title_full	Simultaneous synthesis of graphite-like and amorphous carbon materials via solution plasma and their evaluation as additive materials for cathode in Li–O2 battery
title_fullStr	Simultaneous synthesis of graphite-like and amorphous carbon materials via solution plasma and their evaluation as additive materials for cathode in Li–O2 battery
title_full_unstemmed	Simultaneous synthesis of graphite-like and amorphous carbon materials via solution plasma and their evaluation as additive materials for cathode in Li–O2 battery
title_sort	simultaneous synthesis of graphite-like and amorphous carbon materials via solution plasma and their evaluation as additive materials for cathode in li–o2 battery
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/df8db5c24dba48d3b4d8ee06f8f13b29
work_keys_str_mv	AT chayanaphatchokradjaroen simultaneoussynthesisofgraphitelikeandamorphouscarbonmaterialsviasolutionplasmaandtheirevaluationasadditivematerialsforcathodeinlio2battery AT hirokowatanabe simultaneoussynthesisofgraphitelikeandamorphouscarbonmaterialsviasolutionplasmaandtheirevaluationasadditivematerialsforcathodeinlio2battery AT takahiroishii simultaneoussynthesisofgraphitelikeandamorphouscarbonmaterialsviasolutionplasmaandtheirevaluationasadditivematerialsforcathodeinlio2battery AT takahiroishizaki simultaneoussynthesisofgraphitelikeandamorphouscarbonmaterialsviasolutionplasmaandtheirevaluationasadditivematerialsforcathodeinlio2battery
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Simultaneous synthesis of graphite-like and amorphous carbon materials via solution plasma and their evaluation as additive materials for cathode in Li–O2 battery

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