杂多酸还原度对淀粉基燃料电池性能的影响
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摘要
基于杂多酸催化的生物质燃料电池能够直接将生物质能转化为电能,解决了资源短缺和环境污染问题。本文通过改变阳极磷钼酸和可溶性淀粉的浓度,研究了磷钼酸还原度对电池开路电压的影响,同时对该电池体系的工作原理进行了阐释。加热条件能够促进磷钼酸溶液中Mo~(6+)向Mo~(5+)转化,随着磷钼酸还原度的增加,电池的开路电压呈现线性增加,这有利于该燃料电池化学能向电能的转化。
Biomass fuel cells based on the catalysis of heteropoly acids can realize the conversion of direct biomass-to-electricity, and solve the problems such as resource shortage and environmental pollution. Effect of the reduction degree of phosphomolybdic acid on open circuit potential was studied by changing the concentrations of phosphomolybdic acid and soluble starch. Moreover, the working principle of fuel cells was described. The conversion of Mo~(6+) to Mo~(5+) in phosphomolybdic acid was improved by heating. With the increase of reduction degree, open circuit potential was increased linearly. This facilitated the conversion of chemical into electrical energy in fuel cells.
Biomass fuel cells based on the catalysis of heteropoly acids can realize the conversion of direct biomass-to-electricity, and solve the problems such as resource shortage and environmental pollution. Effect of the reduction degree of phosphomolybdic acid on open circuit potential was studied by changing the concentrations of phosphomolybdic acid and soluble starch. Moreover, the working principle of fuel cells was described. The conversion of Mo~(6+) to Mo~(5+) in phosphomolybdic acid was improved by heating. With the increase of reduction degree, open circuit potential was increased linearly. This facilitated the conversion of chemical into electrical energy in fuel cells.
引文
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[3]Wei Liu,Wei Mu,Yulin Deng.High-performance liquid-catalyst fuel cell for direct biomass-into-electricity conversion[J].Angewandte Chemie International Edition,2014,53:13558-13562.
[4]Lamy C,Belgsir E M,Léger J M.Electrocatalytic oxidation of aliphatic alcohols:application to the direct alcohol fuel cell(DAFC)[J].Journal of Applied Electrochemistry,2001,31:799-809.
[5]Choudhury A,Chandra H,Arora A.Application of solid oxide fuel cell technology for power generation-a review.Renewable and Sustainable Energy Reviews,2013,20:430-442.(下转第50页)
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