Journal of Applied Electrochemistry

, Volume 43, Issue 10, pp 1011–1016 | Cite as

An innovative dual fuel cell to capture and collect pure NO X from flue gases

Research Article


Nitrogen monoxide (NO), a major air pollutant, can be directly used as a precursor for nitrogen fertilizer production as long as it is collected in a pure form. In this study, an innovative dual fuel cell system was designed for the efficient capture and collection of pure NO X from industrial flue gases as well as for electricity generation. The system consisted of a methanol/ferric-EDTA fuel cell for NO X capture and a ferrous-EDTA–NO/air fuel cell for captured NO X collection. In a separation operation, the maximum power densities, which were obtained at pH 2 and 20 °C, were 785 and 1,840 mW m−2 in FC1 and FC2, respectively, and increased with temperature. The highest overall outputs from FC1 and FC2 were measured at pH 2, a result that is possibly attributable to the redox potential difference between the anolyte and catholyte in the fuel cells. In the combined operation, ferrous-EDTA–NO prepared in the cathode compartment of FC1 was successfully and efficiently converted to ferric-EDTA and NO in the anode compartment of FC2. The present approach was considered advantageous for advanced NO X reuse technology in the respect that valuable products, such as fertilizer, could be produced.


Dual fuel cell system Ferrous-EDTA–NO NOX reuse Ferric catholyte Metal chelate Selective absorption 



This research was supported by a grant from the Advanced Biomass R&D Center (ABC) of Korea funded by the Ministry of Education, Science and Technology (ABC-2010-0029728).


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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  1. 1.Department of Civil and Environmental EngineeringKAISTTaejonRepublic of Korea

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