Improvement of low temperature carbon combustion catalyst characteristic caused by mixing Bi2O3 with Tl2O3

Abstract This study investigated the addition of various oxides to further improve the catalytic characteristics of Tl2O3, which offers a high carbon combustion catalytic capacity to lower the carbon combustion temperature of 660 °C by ~ 300 °C. Mixtures of carbon (2 wt%) with composite catalysts co...

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Autor principal:	Susumu Nakayama
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8b055e9f6f8e432cba5226f1d2e8864b
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spelling	oai:doaj.org-article:8b055e9f6f8e432cba5226f1d2e8864b2021-12-02T14:29:10ZImprovement of low temperature carbon combustion catalyst characteristic caused by mixing Bi2O3 with Tl2O310.1038/s41598-021-88776-62045-2322https://doaj.org/article/8b055e9f6f8e432cba5226f1d2e8864b2021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-88776-6https://doaj.org/toc/2045-2322Abstract This study investigated the addition of various oxides to further improve the catalytic characteristics of Tl2O3, which offers a high carbon combustion catalytic capacity to lower the carbon combustion temperature of 660 °C by ~ 300 °C. Mixtures of carbon (2 wt%) with composite catalysts comprising 20 wt% Tl2O3–80wt% added oxide were analyzed using DSC. Bi2O3 offered the best improvement, where the exothermic peak temperatures for carbon combustion of carbon with various Tl2O3–x wt% Bi2O3 composites were lower than that of carbon with pure Tl2O3. Isothermal TG measurements were performed using a mixture of carbon and the Tl2O3‒95 wt% Bi2O3 composite catalyst, where a 2 wt% weight loss (i.e. removal of all carbon) was achieved above 230 °C. A porous alumina filter was coated with the composite catalyst and carbon was deposited on the filter surface. The filter was held at constant temperatures under air flow, which confirmed that carbon was completely removed at 230 °C. This study demonstrated the potential for using these composite catalysts in self-cleaning particulate filters to decompose and eliminate fine particulate matter and diesel particulate matter generated from steelworks, thermal power plants, and diesel vehicles simply using the heat of the exhaust gas in a factory flue-gas stack or vehicle muffler.Susumu NakayamaNature 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 Susumu Nakayama Improvement of low temperature carbon combustion catalyst characteristic caused by mixing Bi2O3 with Tl2O3
description	Abstract This study investigated the addition of various oxides to further improve the catalytic characteristics of Tl2O3, which offers a high carbon combustion catalytic capacity to lower the carbon combustion temperature of 660 °C by ~ 300 °C. Mixtures of carbon (2 wt%) with composite catalysts comprising 20 wt% Tl2O3–80wt% added oxide were analyzed using DSC. Bi2O3 offered the best improvement, where the exothermic peak temperatures for carbon combustion of carbon with various Tl2O3–x wt% Bi2O3 composites were lower than that of carbon with pure Tl2O3. Isothermal TG measurements were performed using a mixture of carbon and the Tl2O3‒95 wt% Bi2O3 composite catalyst, where a 2 wt% weight loss (i.e. removal of all carbon) was achieved above 230 °C. A porous alumina filter was coated with the composite catalyst and carbon was deposited on the filter surface. The filter was held at constant temperatures under air flow, which confirmed that carbon was completely removed at 230 °C. This study demonstrated the potential for using these composite catalysts in self-cleaning particulate filters to decompose and eliminate fine particulate matter and diesel particulate matter generated from steelworks, thermal power plants, and diesel vehicles simply using the heat of the exhaust gas in a factory flue-gas stack or vehicle muffler.
format	article
author	Susumu Nakayama
author_facet	Susumu Nakayama
author_sort	Susumu Nakayama
title	Improvement of low temperature carbon combustion catalyst characteristic caused by mixing Bi2O3 with Tl2O3
title_short	Improvement of low temperature carbon combustion catalyst characteristic caused by mixing Bi2O3 with Tl2O3
title_full	Improvement of low temperature carbon combustion catalyst characteristic caused by mixing Bi2O3 with Tl2O3
title_fullStr	Improvement of low temperature carbon combustion catalyst characteristic caused by mixing Bi2O3 with Tl2O3
title_full_unstemmed	Improvement of low temperature carbon combustion catalyst characteristic caused by mixing Bi2O3 with Tl2O3
title_sort	improvement of low temperature carbon combustion catalyst characteristic caused by mixing bi2o3 with tl2o3
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/8b055e9f6f8e432cba5226f1d2e8864b
work_keys_str_mv	AT susumunakayama improvementoflowtemperaturecarboncombustioncatalystcharacteristiccausedbymixingbi2o3withtl2o3
_version_	1718391204588027904

Improvement of low temperature carbon combustion catalyst characteristic caused by mixing Bi2O3 with Tl2O3

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