Application of iron-based cathode catalysts in a microbial fuel cellBirry, L.; Mehta, P.; Jaouen, F.; Dodelet, J.-P.; Guiot, S.R.; Tartakovsky, B.Electrochimica Acta 56 (2011) [1505][1506][1507][1508][1509][1510][1511] (FePc). These materials were subsequently pyrolyzed at a high temperature. The ORR activity of all Fe-based catalysts was measured at pH 7 with a rotating disk electrode (RDE) and their performance for electricity production was then verified in a continuous flow MFC. Catalysts prepared with FeAc and pyrolyzed in NH 3 showed poor activity in RDE tests as well as a poor performance in a MFC. The ORR activity and fuel cell performance for catalysts prepared with ClFeTMPP and FePc and pyrolyzed in Ar were significantly higher and comparable for both precursors. The iron loading was optimized for FePc-based catalysts. With a constant catalyst load of 2 mg cm −2 in a MFC, the highest power output (550-590 mW/m 2 ) was observed when the Fe content was 0.5-0.8 wt%, corresponding to only 0.01-016 mg Fe/cm 2 . A similar power output was observed using a Pt-based carbon cloth cathode containing 0.5 mg Pt/cm 2 . Long-term stability of the Fe-based cathode (0.5 wt% Fe) was confirmed over 20 days of MFC testing.Crown

Electricity generation from carbon monoxide in a single chamber microbial fuel cell Mehta, P.; Hussain, A.; Tartakovsky, B.; Neburchilov, V.; Raghavan, V.; Wang, H.; Guiot, S. R.Contact us / Contactez nous: nparc.cisti@nrc-cnrc.gc.ca. READ THESE TERMS AND CONDITIONS CAREFULLY BEFORE USING THIS WEBSITE.Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en Enzyme and Microbial Technology 46 (2010) R . Several soluble and gaseous degradation products including hydrogen, methane, and acetate were detected, resulting in a relatively low apparent Coulombic efficiency of 8.7%. Tests also demonstrated electricity production from hydrogen and acetate with the highest and fastest increase in voltage exhibited after acetate injection. It is hypothesized that electricity generation in a CO-fed MFC is accomplished by a consortium of carboxydotrophic and carbon monoxide -tolerant anodophilic microorganisms.Crown

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