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fÎÄÏ×for the cyclic voltammograms(CV) of the pt/c catalyst under N2 saturated 0.1 M HClO4 aqueous solution,  EAS was 58.9 and 66.6 (m2g-1) for Pt/GN and commerical 20 wt% pt/XC-72 catalyst

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ÔÙÎʸöÎÊÌ⣺ÎÄÏ×ÖÐ˵ lower EAS value of Pt/GN can be attributed to the larger particle size than E-TEK  ,¾ÍÊÇ ÊDz»ÊÇ Î¢Á£´óСÓë´ß»¯»îÐÔÓйأ¬Ô½Ð¡´ß»¯»îÐÔÔ½´ó£¬ÒòΪ±íÃæ»ý´ó£¿
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