Advanced redox flow fuel cell using ferric chloride as main catalyst for complete conversion from carbohydrates to electricity

Abstract Liquid catalyzed fuel cell (LCFC) is a kind of redox flow fuel cell directly converting carbohydrates to electricity. To improve its efficiency, ferric chloride (FeCl3) was introduced as main catalyst. As mono catalyst, phosphomolybdic acid (PMo12) was much better than phosphotungstic acid...

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Autores principales:	Fan Xu, Huan Li, Yueling Liu, Qi Jing
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b8c5dd33f6bf401ea7ec574bb517e2f2
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spelling	oai:doaj.org-article:b8c5dd33f6bf401ea7ec574bb517e2f22021-12-02T16:06:57ZAdvanced redox flow fuel cell using ferric chloride as main catalyst for complete conversion from carbohydrates to electricity10.1038/s41598-017-05535-22045-2322https://doaj.org/article/b8c5dd33f6bf401ea7ec574bb517e2f22017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05535-2https://doaj.org/toc/2045-2322Abstract Liquid catalyzed fuel cell (LCFC) is a kind of redox flow fuel cell directly converting carbohydrates to electricity. To improve its efficiency, ferric chloride (FeCl3) was introduced as main catalyst. As mono catalyst, phosphomolybdic acid (PMo12) was much better than phosphotungstic acid (PW12) and FeCl3 was intermediate between them. Compared with PMo12 at the optimal dose of 0.30 mol/L, the combination of FeCl3 (1.00 mol/L) and PW12 (0.06 mol/L) achieved similar power output from glucose (2.59 mW/cm2) or starch (1.57 mW/cm2), and even improved the maximum power density by 57% from 0.46 to 0.72 mW/cm2 when using cellulose as the fuel. Long-term continuous operation of the LCFC indicated that carbohydrates can be hydrolyzed to glucose and then oxidized stepwise to carbon dioxide. At the latter stage, there was a linear relationship between the electron transfer number from glucose to catalyst and the subsequent cell performance. Based on these findings, the contribution of FeCl3 to LCFC should be derived from the accelerated hydrolysis and oxidation of carbohydrates and the enhanced electron transfer from glucose to anode. The addition of FeCl3 reduced the usage of polyoxometalates by 80%, and the replacement implied that LCFC can be operated less toxically and more economically.Fan XuHuan LiYueling LiuQi JingNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Fan Xu Huan Li Yueling Liu Qi Jing Advanced redox flow fuel cell using ferric chloride as main catalyst for complete conversion from carbohydrates to electricity
description	Abstract Liquid catalyzed fuel cell (LCFC) is a kind of redox flow fuel cell directly converting carbohydrates to electricity. To improve its efficiency, ferric chloride (FeCl3) was introduced as main catalyst. As mono catalyst, phosphomolybdic acid (PMo12) was much better than phosphotungstic acid (PW12) and FeCl3 was intermediate between them. Compared with PMo12 at the optimal dose of 0.30 mol/L, the combination of FeCl3 (1.00 mol/L) and PW12 (0.06 mol/L) achieved similar power output from glucose (2.59 mW/cm2) or starch (1.57 mW/cm2), and even improved the maximum power density by 57% from 0.46 to 0.72 mW/cm2 when using cellulose as the fuel. Long-term continuous operation of the LCFC indicated that carbohydrates can be hydrolyzed to glucose and then oxidized stepwise to carbon dioxide. At the latter stage, there was a linear relationship between the electron transfer number from glucose to catalyst and the subsequent cell performance. Based on these findings, the contribution of FeCl3 to LCFC should be derived from the accelerated hydrolysis and oxidation of carbohydrates and the enhanced electron transfer from glucose to anode. The addition of FeCl3 reduced the usage of polyoxometalates by 80%, and the replacement implied that LCFC can be operated less toxically and more economically.
format	article
author	Fan Xu Huan Li Yueling Liu Qi Jing
author_facet	Fan Xu Huan Li Yueling Liu Qi Jing
author_sort	Fan Xu
title	Advanced redox flow fuel cell using ferric chloride as main catalyst for complete conversion from carbohydrates to electricity
title_short	Advanced redox flow fuel cell using ferric chloride as main catalyst for complete conversion from carbohydrates to electricity
title_full	Advanced redox flow fuel cell using ferric chloride as main catalyst for complete conversion from carbohydrates to electricity
title_fullStr	Advanced redox flow fuel cell using ferric chloride as main catalyst for complete conversion from carbohydrates to electricity
title_full_unstemmed	Advanced redox flow fuel cell using ferric chloride as main catalyst for complete conversion from carbohydrates to electricity
title_sort	advanced redox flow fuel cell using ferric chloride as main catalyst for complete conversion from carbohydrates to electricity
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/b8c5dd33f6bf401ea7ec574bb517e2f2
work_keys_str_mv	AT fanxu advancedredoxflowfuelcellusingferricchlorideasmaincatalystforcompleteconversionfromcarbohydratestoelectricity AT huanli advancedredoxflowfuelcellusingferricchlorideasmaincatalystforcompleteconversionfromcarbohydratestoelectricity AT yuelingliu advancedredoxflowfuelcellusingferricchlorideasmaincatalystforcompleteconversionfromcarbohydratestoelectricity AT qijing advancedredoxflowfuelcellusingferricchlorideasmaincatalystforcompleteconversionfromcarbohydratestoelectricity
_version_	1718384801704050688

Advanced redox flow fuel cell using ferric chloride as main catalyst for complete conversion from carbohydrates to electricity

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