Intermediate Temperature Proton Conductors – Why and How

Qingfeng Li, David Aili, Jens Oluf Jensen, Lars Nilausen Cleemann

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The current technologies of fuel cells and electrolzers are based on ionic conducting electrolyte materials exclusively operational either in the low (20 - 200ºC) or high (600 - 1000ºC) temperature ranges. The intermediate temperature window, especially between 200 and 400 ºC, is still only represented by early fundamental material research for ionic electrolytes. Such materials, most likely based on proton conductors, are expected to bring a new generation of the technologies: fuel cells by direct oxidation or internal splitting of biofuels such as methanol and ethanol, as well as efficient water electrolyzer, preferrably a CO2 co-electrolyzer for generation of organic liquid fuels. Such technologies are of essential simplicity and allow for kinetic enhancement so that the need for precious metal catalysts as in low temperature systems might be eliminated. At the same time, this temperature range is low enough to have a wide selection of materials for cell and stack construction, and with potential long-term durability. This talk will briefly outline the recent work at DTU based on acid-base complexes and metal phosphates
Original languageEnglish
Publication date2016
Number of pages1
Publication statusPublished - 2016
EventInternational Workshop on Ethanol Electro-Oxidation - Florence, Italy
Duration: 5 Dec 20167 Dec 2016


WorkshopInternational Workshop on Ethanol Electro-Oxidation
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