|
Korean Journal of Chemical Engineering, Vol.27, No.3, 802-806, 2010
The effect of PtRuW ternary electrocatalysts on methanol oxidation reaction in direct methanol fuel cells
PtRu and PtRuW ternary electrocatalysts were synthesized using an NaBH4 reduction method. A uniform distribution of particles, with average particle size of 3-3.5 nm was indentified from X-ray diffraction (XRD) and transmission electron microscopy (TEM). The electrochemically active surface area was slightly decreased after the addition of W into PtRu. When W was added to PtRu, the specific and mass activity of methanol electro-oxidation was increased. The most active catalyst was Pt5Ru4W, of which specific and mass activities were 265.38 mA/m2 and 6.21 A/g.catal, respectively. The specific and mass activity was 390 and 320% higher than that of PtRu.
[References]
- Yu EH, Scott K, Reeve RW, J. Electroanal. Chem., 547(1), 17, 2003
- Arico AS, Srinivasan S, Antonucci V, Fuel Cell, 2, 133, 2001
- Wasmus S, Kuver A, J. Electroanal. Chem., 461(1-2), 14, 1999
- Kelley SC, Deluga GA, Smyrl WH, Electrochem. Solid-State Lett., 3, 407, 1999
- Ren XM, Zelenay P, Thomas S, Davey J, Gottesfeld S, J. Power Sources, 86(1-2), 111, 2000
- Choi JH, Park KW, Park IS, Nam WH, Sung YE, Electrochim. Acta, 50(2-3), 787, 2004
- Yamaguchi T, Kuroki H, Miyata, Electrochem. Commun., 7, 730, 2005
- Xu J, Hua K, Sun G, Wang C, Lv X, Wang Y, Electrochem. Commun., 8, 982, 2006
- Luo J, Njoki PN, Lin Y, Mott D, Wang LY, Zhong CJ, Langmuir, 22(6), 2892, 2006
- Shobha T, Aravinda CL, Bera P, Devi LG, Mayanna SM, Mater. Chem. Phys., 80(3), 656, 2003
- Markovic NM, Gasteiger HA, Ross PN, Jiang XD, Villegas I, Weaver MJ, Electrochim. Acta, 40(1), 91, 1995
- Rodriguez-Nieto FJ, Morante-Catacora TY, Cabrera CR, J. Electroanal. Chem., 571(1), 15, 2004
- Watanabe M, Uchida M, Motoo S, J. Electroanal. Chem., 229, 395, 1987
- Ley KL, Liu RX, Pu C, Fan QB, Leyarovska N, Segre C, Smotkin ES, J. Electrochem. Soc., 144(5), 1543, 1997
- He CZ, Kunz HR, Fenton JM, J. Electrochem. Soc., 144(3), 970, 1997
- Sivakumar P, Tricoli V, Electrochem. Solid State Lett., 9(3), A167, 2006
- Strasser P, Fan Q, Devenney M, Weinberg WH, Liu P, Norskov JK, J. Phys. Chem. B, 107(40), 11013, 2003
- Lasch K, Jorissen L, Garche J, J. Power Sources, 84(2), 225, 1999
- Schmidt TJ, Gasteiger HA, Stab GD, Urban PM, Kolb DM, Behm RJ, J. Electrochem. Soc., 145(7), 2354, 1998
- Choi WC, Woo SI, J. Power Sources, 124(2), 420, 2003
- Pozio A, De Francesco M, Cemmi A, Cardellini F, Giorgi L, J. Power Sources, 105(1), 13, 2002
- Wang ZB, Yin GP, Shi PF, Sun YC, Electrochem. Solid State Lett., 9(1), A13, 2006
- Tong YY, Kim HS, Babu PK, Waszczuk P, Wieckowski A, Oldfield E, J. Am. Chem. Soc., 124(3), 468, 2002
- Cao J, Du C, Wang SC, Mercier P, Zhang X, Yang H, Electrochem. Commun., 9, 735, 2007
- Kawaguchi T, Rachi Y, Sugimoto W, Murakami Y, Takasu Y, J. Appl. Electrochem., 36(10), 1117, 2006
|