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takasakiÒø³æ (СÓÐÃûÆø)
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PEMFCµÄMEAÖÆÔìÁ÷³Ì(CCM·¨)
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ÕâÊÇÃÀ¹ú Los Alamos National Laboratory·¢±íµÄÂÛÎĸÅÒª¡£½ö¹©²Î¿¼ µÚÒ»²½£¬catalysis ink ÖÆ±¸ 1.0g of 5% Nafion solution £¬0.125 g of Pt/CB, stir for 1 hour. Add 0.5 g glycerol and stir for 15 minutes. Add 50 mg of 1 M Tetra Butyl Ammonium hydroxide/methanol, Stir for 1 hour. Add 0.5g of glycerol again, and stir for 24 hours. µÚ2²½£¬PTFEÉÏÍ¿²¼ Clean Teflon film and dry them. Lightly spray them with a Teflon release agent and, record their weights. With an camel hair brush, paint a coat of catalyst ink on the film and put them in a 140¡ãC drying oven for 1 hour. Check their weights and repeat the painting (paint 90¡ã to previous direction) and drying until the desired loading is achieved. µÚÈý²½ CCMÖÆ±¸ Cut Nafion 112 PEM to the desired size. Exchange membranes to Na form. The painted side of two decals are placed facing each other on either side of a dried Na form membrane. The stainless steel holder is placed in a 210¡ãC preheated hot press and compressed to 0.8 MPa for 5 min. The decals are then peeled away from the membrane leaving the catalyst electrodes fused to the membrane (CCM). Boil CCM in 0.5 M H2SO4 for 1 hr. µÚËIJ½ GDLs are cut to fit the particular size electrodes. GDL/CCM/GDL can be hotpressed for better contact, or directly inset into a cell. [ Last edited by takasaki on 2007-9-6 at 12:57 ] |
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lsf_eclab
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2Â¥2007-09-09 09:50:32
takasaki
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3Â¥2007-09-09 12:05:48
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4Â¥2007-09-09 15:47:53
sos20002000
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Õâ±ßÓиöͼÎIJ¢Ã¯µÄ¹ØÓÚCCMÖÆ±¸¹ý³ÌµÄ£¬À´×ÔÓÚС°ÙºÏµÄ![]() http://bbs.nju.edu.cn/blogcon?us ... amp;file=1179110896 [ Last edited by sos20002000 on 2007-9-9 at 21:56 ] |
5Â¥2007-09-09 21:55:10
zhjyisee
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6Â¥2007-09-13 14:51:15














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