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High-Performance Liquid-Catalyst Fuel Cell for Direct Biomass-into-Electricity Conversion
Ist Teil von
Angewandte Chemie (International ed.), 2014-12, Vol.53 (49), p.13558-13562
Auflage
International ed. in English
Ort / Verlag
Weinheim: WILEY-VCH Verlag
Erscheinungsjahr
2014
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Herein, we report high‐performance fuel cells that are catalyzed solely by polyoxometalate (POM) solution without any solid metal or metal oxide. The novel design of the liquid‐catalyst fuel cells (LCFC) changes the traditional gas–solid‐surface heterogeneous reactions to liquid‐catalysis reactions. With this design, raw biomasses, such as cellulose, starch, and even grass or wood powders can be directly converted into electricity. The power densities of the fuel cell with switchgrass (dry powder) and bush allamanda (freshly collected) are 44 mW cm−2 and 51 mW cm−2 respectively. For the cellulose‐based biomass fuel cell, the power density is almost 3000 times higher than that of cellulose‐based microbial fuel cells. Unlike noble‐metal catalysts, POMs are tolerant to most organic and inorganic contaminants. Therefore, almost any raw biomass can be used directly to produce electricity without prior purification.
Plant light: The liquid‐catalyst fuel cell is catalyzed solely by a polyoxometalate (POM) solution without any noble‐metal components. Raw biomass, such as cellulose, starch, and even grass or wood powders, can be directly converted into electricity. High performance and a robust catalyst hold the key to achieving a breakthrough in direct biomass fuel‐cell technology.