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Effect of P on the electrochemical activity of carbon supported Pt-Ru alloy catalyst for methanol oxidation.

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dc.contributor.author Mohlala, M
dc.contributor.author Modibedi, Remegia M
dc.contributor.author Mathe, Mahlanyane K
dc.date.accessioned 2009-03-27T14:33:05Z
dc.date.available 2009-03-27T14:33:05Z
dc.date.issued 2007-11
dc.identifier.citation Mohlala, M, Modibedi, M and Mathe, MK. 2007. Effect of P on the electrochemical activity of carbon supported Pt-Ru alloy catalyst for methanol oxidation. Catalysis Society of South Africa (CATSA) Conference. Richards Bay, South Africa, 11-14 November 2007, pp 1 en
dc.identifier.uri http://hdl.handle.net/10204/3269
dc.description Catalysis Society of South Africa (CATSA) Conference. Richards Bay, South Africa, 11-14 November 2007 en
dc.description.abstract In polymer electrolyte membrane fuel cell (PEMFC), platinum is recognized to be the most active metal for methanol oxidation, however there is a strong CO adsorption tendency, which blocks the surface for further methanol adsorption and leads to very low power densities [1, 2]. Pt-Ru and Pt-Sn are the most promising of the binary catalysts for methanol and ethanol oxidation respectively due to the improved CO tolerance. On the other hand, the power densities of Pt-Ru and Pt-Sn anode catalysts for direct alcohol fuel cell is lower than that of the hydrogen PEMFC [3, 4, and 5]. This study aims at improving the performance of the binary catalyst through the addition of phosphorus group following the sodium hypophosphite method [6]. The optimum amount of phosphorus on the Pt-Ru/C, Pt-Sn/C and Pt-Ir/C was investigated by measuring the activity of the catalysts for methanol electrooxidation with cyclic voltammetry and linear chronoamperometry en
dc.language.iso en en
dc.publisher Catalysis Society of South Africa (CATSA) 2007 en
dc.subject Methanol electrooxidation en
dc.subject Phosphor en
dc.subject Ruthenium en
dc.subject Linear chronoamperometry en
dc.title Effect of P on the electrochemical activity of carbon supported Pt-Ru alloy catalyst for methanol oxidation. en
dc.type Conference Presentation en
dc.identifier.apacitation Mohlala, M., Modibedi, R. M., & Mathe, M. K. (2007). Effect of P on the electrochemical activity of carbon supported Pt-Ru alloy catalyst for methanol oxidation. Catalysis Society of South Africa (CATSA) 2007. http://hdl.handle.net/10204/3269 en_ZA
dc.identifier.chicagocitation Mohlala, M, Remegia M Modibedi, and Mahlanyane K Mathe. "Effect of P on the electrochemical activity of carbon supported Pt-Ru alloy catalyst for methanol oxidation." (2007): http://hdl.handle.net/10204/3269 en_ZA
dc.identifier.vancouvercitation Mohlala M, Modibedi RM, Mathe MK, Effect of P on the electrochemical activity of carbon supported Pt-Ru alloy catalyst for methanol oxidation; Catalysis Society of South Africa (CATSA) 2007; 2007. http://hdl.handle.net/10204/3269 . en_ZA
dc.identifier.ris TY - Conference Presentation AU - Mohlala, M AU - Modibedi, Remegia M AU - Mathe, Mahlanyane K AB - In polymer electrolyte membrane fuel cell (PEMFC), platinum is recognized to be the most active metal for methanol oxidation, however there is a strong CO adsorption tendency, which blocks the surface for further methanol adsorption and leads to very low power densities [1, 2]. Pt-Ru and Pt-Sn are the most promising of the binary catalysts for methanol and ethanol oxidation respectively due to the improved CO tolerance. On the other hand, the power densities of Pt-Ru and Pt-Sn anode catalysts for direct alcohol fuel cell is lower than that of the hydrogen PEMFC [3, 4, and 5]. This study aims at improving the performance of the binary catalyst through the addition of phosphorus group following the sodium hypophosphite method [6]. The optimum amount of phosphorus on the Pt-Ru/C, Pt-Sn/C and Pt-Ir/C was investigated by measuring the activity of the catalysts for methanol electrooxidation with cyclic voltammetry and linear chronoamperometry DA - 2007-11 DB - ResearchSpace DP - CSIR KW - Methanol electrooxidation KW - Phosphor KW - Ruthenium KW - Linear chronoamperometry LK - https://researchspace.csir.co.za PY - 2007 T1 - Effect of P on the electrochemical activity of carbon supported Pt-Ru alloy catalyst for methanol oxidation TI - Effect of P on the electrochemical activity of carbon supported Pt-Ru alloy catalyst for methanol oxidation UR - http://hdl.handle.net/10204/3269 ER - en_ZA


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