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Figure 3 shows the in situ CVs of the CNT-based electrode with diffusion layer and conventional electrode at a scan rate of 50 mV s21. From the integration of the desorption peaks after excluding the double layer charging effect, the total charges of hydrogen desorption on the CNT-based and conventional electrode are calculated at 12.8 and 12 mC cm-2, respectively ÕâÊÇPEMFCµÄÒ»¸öÑ»··ü°²Í¼£¬ÎÒÏëÖªµÀ£¬ËûÔÚËãÇâ½âÎü¸½µçºÉÁ¿µÄʱºòËùÓõľßÌåÃæ»ýÊÇÔõô¹æ¶¨µÄ£¬ÄÇÒ»¿é£¿ ÊÇÓÐÒ»¸ö¾ßÌåµÄ±ê×¼»òÕß˵ÄâºÏ·½·¨£¬»¹ÊÇ˵×Ô¼ºÖ÷¹ÛÉÏÅжϴÓdouble layerÄDZ߻®ÌõºáÏß»®¹ýÀ´µÃµ½Ãæ»ý¾Í¿ÉÒÔÄÃÀ´ËãµçºÉÁ¿£¿ ÎÊÌâ2£¬ÊµÑ鲿·ÖÖÐÓУ¬In situ cyclic voltammograms £¨CVs£© were also measured at a scan rate of 50 mV s-1 by supplying N2 to the cathode side £¨serving as working electrode£©and H2 to the anode side £¨serving as counter and reference electrode£©ÆäÖеģ¨serving as working electrode£©£¨serving as counter and reference electrode£©ÔõôÀí½â£¿ [ Last edited by ¹ú²úµç³Ø on 2009-11-8 at 00:41 ] |
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