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用XRD法研究PtRu/C催化剂的形成过程 被引量：1

An XRD Analysis for Formation of Carbon Supported PtRu Alloys
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摘要 通过RuCl3在Pt/C上浸渍,用Na2S2O4还原后,在N2气氛下从300～900℃各种温度范围内烧结,得到了PtRu/C催化剂的样品.该样品经XRD分析表明,在400℃温度下烧结,可以制备合金化程度较高的PtRu/C催化剂.既可减小合金与C载体之间的相互作用,又可抑制Ru晶体的单独生长. Carbon supported PtRu alloys were prepared by impregnation of RuCl_3 precursors on a porous carbon supported Pt, followed by reduction of metal with Na_2S_2O_4. After reduction, the samples were thermal treated in N_2 up to 900 ℃. The samples were characterized by XRD measurement. The result indicated that higher ratio of PtRu alloys could be formed at 400 ℃, since the alloy-carbon interaction was decreased and the growth of Ru crystal was inhibited at that temperature.
作者 余晴春 王明华 隋升 胡鸣若 朱新坚 曹广益 吴益华
机构地区 上海交通大学燃料电池研究所
出处 《复旦学报（自然科学版）》 CAS CSCD 北大核心 2004年第4期521-523,共3页 Journal of Fudan University：Natural Science
关键词 XRD法 PtRu/C催化剂 直接甲醇燃料电池 烧结温度 direct methanol fuel cells catalyst of PtRu/C XRD analysis
分类号 TM911.4 [电气工程—电力电子与电力传动]
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参考文献5

  • 1Li Liu, Cong Pu, Rameshkrishnan V, et al. Carbon supported and unsupported Pt-Ru anodes for liquid feed direct methanol fuel cells[J]. Electrochimica Acta,1998, 43: 3657-3663.
  • 2Arico A S, Creti P, Modica E, et al. Investigation of direct methanol fuel cells based on unsupported Pt-Ru anode catalysts with different chemical properties[J]. Erlectrochimica Acta,2000, 45: 4319-4328.
  • 3Wasmus J, Kuver A. methanol oxidation and direct methanol fuel cells[J].Electroanalytical Chemistry,1999, 461: 14-31.
  • 4Fujiwara N, Yasuda K, Ioroi T, et al. Preparation of platinum-ruthenium onto solid polymer electrolyte membrane and the application to a DMFC anode[J]. Erlectrochimica Acta,2002, 47: 4079-4084.
  • 5Antolini E. Formation of carbon-supported PtM alloys for low temperature fuel cells[J]. Materials Chemistry and Physics,2003, 78: 563-573.

同被引文献8

  • 1蔡育芬,廖世军.燃料电池多组分阳极催化剂的最新研究进展[J].广东化工,2005,32(1):47-50. 被引量：4
  • 2陈煜,唐亚文,吴伟,曹洁明,刘长鹏,邢巍,陆天虹.合金化程度对炭载Pt-Ru催化剂性能的影响[J].高等学校化学学报,2006,27(4):676-679. 被引量：10
  • 3HOBSONL J, NAKANO Y,OZU H, et al. Targeting improve DMFC performance[J]. J Power Sources, 2002, 104:79-84.
  • 4KAURANEN P S, SKOU E. Kinetics of methanol oxidation on carbon-supported Pt and Pt+Ru catalysts[J]. J Electroanal Chem, 1996, 404(1):1-13.
  • 5KAURANEN P S, SKOU E. Mixed methanol oxidation oxygen reduction currents on a carbon-supported Pt catalysts[J]. J Electroanal Chem, 1996, 408(1-2):189-198.
  • 6SEXTON B A.Methanol decomposition on platinum(111)[J]. J Electroanal Chem, 1981, 102(1):271-281.
  • 7BITT1NS-CATTANEO B, IWASITA T. Electrocatalysis of methanol oxidation by adsorbed tin on platinum [J] . J Electroanal Chem, 1987, 238(1-2):151-161.
  • 8SOBKOWSKI J, FRANASZCZUK K, PIASECKI A. Influence of tin on the oxidation of methanol on a platinum electrode [J]. J Electroanal Chem, 1985, 196:145-146.

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复旦学报（自然科学版）
2004年 第4期

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