Fuel cell using borohydride as the fuel has received much attention. AB5-type hydrogen storage alloy used as the anodic material instead of noble metals has been investigated. In order to restrain the generation of hydrogen and enhance the utilization of borohydride, Ti/Zr metal powders has been added into the parent LmNi4.78Mn0.22 (where Lm is La-richened mischmetal) alloy (LNM) by ball milling and heat treatment methods. It is found that the addition of Ti/Zr metal powders lowers the electrochemical catalytic activity of the electrodes, at the same time, restrains the generation of hydrogen and enhances the utilization of the fuel. All the results show that the hydrogen generation rate or the utilization of the fuel is directly relative to the electrochemical catalytic activity or the discharge capability of the electrodes. The utilization of the fuel increases with discharge current density. It is very important to find a balance between the discharge capability and the utilization of the fuel.
参考文献
| [1] | S Suda;Y M Sun;M Uchida;B H Liu,S Morimitsu,K Arai,Y Zhou,N Tsukamoto,Y Candra,Z P Li .[J].Metals and Materials International,2001,7(01):73. |
| [2] | S Suda;Y M Sun;B H Liu;Y Zhou,S Morimitsu,K Arai,Y Zhou,N Tsukamoto,M Uchida,Y Candra,Z P Li .[J].Journal of Applied Physiology,2001,72:209. |
| [3] | S C Amendola;P Onnerud;M Kelly;P Petillo,S L SharpGoldman,M Binder .[J].Journal of Power Sources,1999,84:130. |
| [4] | S C Amendola;S L Sharp-Goldman;M Saleem Janjua;N C Spencer,M T Kelly,P J Petillo,M Binder .[J].International Journal of Hydrogen Energy,2000,25:969. |
| [5] | V C K Kong;F R Foulkes;D W Kirk;J T Hinatsu .[J].International Journal of Hydrogen Energy,1999,24:665. |
| [6] | Y Kojima;K Suzuki;K Fukumoto;Y Kawai,M Kimbara,H Nakaishi,S Matsumoto .[J].Journal of Power Sources,2004,125:22. |
| [7] | Y Kojima;K Suzuki;K Fukumoto;M Sasaki,T Yamamoto,Y Kawai,H Hayashi .[J].International Journal of Hydrogen Energy,2002,27:1029. |
| [8] | S M Lee;J H Kim;H H Lee;P S Lee,J Y Lee .[J].Journal of the Electrochemical Society,2002,149:A603. |
| [9] | Z P Li;B H Liu;K Arai;S Suda .[J].Journal of the Electrochemical Society,2003,150:A868. |
| [10] | Y Nakamura;H Nakamura;S Fujitani;I Yonezu,T Saito,N Nishizawa,M Tsutsumi .[J].Journal of Alloys and Compounds,1995,231:898. |
| [11] | S.E. Hsu;V.M. Beibutian;M.T. Yeh .Preparation of hydrogen storage alloys for applications of hydrogen storage and transportation[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2002(0):882-885. |
| [12] | L B Wang;H T Yuan;H B Yang;K Zhou,D Y Song,Y S Zhang .[J].Journal of Alloys and Compounds,2000,302:65. |
| [13] | L B Wang;C A Ma;Y M Sun;S Suda .[J].Journal of Alloys and Compounds,2005,391:318. |
| [14] | J S Hua;C S Liu;Q K Cai .[J].J Northeastern Univ (Nat Sci ),2000,21(03):266. |
| [15] | 李传健,王新林,王崇愚.Ti对铸态AB5型合金微观结构与性能的影响[J].稀有金属材料与工程,1998(06):352-355. |
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