采用还原碳化法制备了碳化钨样品,并用原位还原法担载Pt粒子得到Pt/WxCy催化剂. 利用计时电流技术对Pt/WxCy和常规Pt/C催化剂进行氧化处理,并用循环伏安法测试了氧化前后两种催化剂的电化学活性面积. 将两种催化剂制成单电池,对比研究了其氧化后的性能衰减. 结果表明, Pt/WxCy催化剂制成的单电池抗氧化能力显著高于普通Pt/C制成的单电池.
参考文献
| [1] | Park K-W;Sung Y-E;Han S;Yun Y Hyeon T .[J].Journal of Physical Chemistry B,2004,108(03):939. |
| [2] | Roen L M;Paik C H;Jarvic T D .[J].Electrochemical and Solid-State Letters,2004,7(01):A19. |
| [3] | Knights S D;Colbow K M;St-Pierre J;Wilkinson D P .[J].Journal of Power Sources,2004,127(1-2):127. |
| [4] | Ferreira P J;la O' G J;Shao-Horn Y;Morgan D Makharia R Kocha S Gasteiger H A .[J].Journal of the Electrochemical Society,2005,152(11):A2256. |
| [5] | Li W Z;Liang C H;Qiu J S;Zhou W J Han H M Wei Z B Sun G Q Xin Q .[J].Carbon,2002,40(05):791. |
| [6] | Wang X;Li W Z;Chen Z W;Waje M Yan Y S .[J].Journal of Power Sources,2006,158(01):154. |
| [7] | Stevens D A;Hicks M T;Haugen G M;Dahna J R .[J].Journal of the Electrochemical Society,2005,152(12):A2309. |
| [8] | Chhina H;Campbell S;Kesler O .[J].Journal of Power Sources,2006,161(02):893. |
| [9] | 博士后招聘启事[J].化工学报,2004(02):279. |
| [10] | Cottrell A H.Chemical Bonding in Transition Metal Carbides[M].London:The Institute of Materials,1995:77. |
| [11] | Zhaolin Liu;Jim Yang Lee;Weixiang Chen;Ming Han;Leong Ming Gan .Physical and Electrochemical Characterizations of Microwave-Assisted Polyol Preparation of Carbon-Supported PtRu Nanoparticles[J].Langmuir: The ACS Journal of Surfaces and Colloids,2004(1):181-0. |
| [12] | 衣宝廉.燃料电池原理、技术、应用[M].北京:化学工业出版社,2003:184. |
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