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ganguihua1983

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A similar discrepancy between EPR and analytical data was found by others in non-stoichiometric V2O5-¦Ä ( d = 0.07 ) prepared by vacuum decomposition of AMV and explained with two consecutive reduction processes ( V5+¡úV4+¡úV3+ ) having two rate constants [9] .£¨Moreover , they found that non-stoichiometric and stoichiometric V2O5 ( obtained by heating V2O5-¦Ä in oxygen at 573K ) , submitted to reduction treatments with propylene , had the same dependence of the V4+ concentration detected by EPR vs. reductiontime .
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[ Last edited by ganguihua1983 on 2010-1-16 at 12:48 ]

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ganguihua1983(½ð±Ò+10,VIP+0): 1-16 23:16
µç×Ó˳´Å¹²ÕñºÍ·ÖÎöÊý¾ÝÖ®¼äµÄÏàËÆµÄ²îÒì±»ËûÈËÔÚÕæ¿Õ·Ö½â·Ç»¯Ñ§¼ÆÁ¿µÄV2O5-¦Ä ( d = 0.07 )  ²¢½«Æä½âÊÍΪÓÐÁ½¸ö·´Ó¦ËÙÂʳ£ÊýµÄÁ½¸öÁ¬ÐøµÄ»¹Ô­·´Ó¦( V5+¡úV4+¡úV3+ )µÄ¹ý³ÌÖз¢ÏÖ¡£ ÁíÍ⣬ËûÃÇ»¹·¢ÏÖ ·Ç»¯Ñ§¼ÆÁ¿µÄV2O5ºÍ»¯Ñ§¼ÆÁ¿µÄV2O5£¨Í¨¹ý½«V2O5-¦ÄÔÚÑõÆøÖмÓÈȵ½573K»ñµÃ£©£¬¾­»¹Ô­´¦Àíºó¶¼»áÓбûÏ©ÊÍ·Å£¬²¢ÇÒͨ¹ý¼ì²âµç×Ó˳´Å¹²ÕñºÍ»¹Ô­Ê±¼äµÄ¹ØÏµÎÒÃÇ·¢ÏÖËûÃÇÓÐ×ŶÔV4+ÏàͬµÄÒÀÀµÐÔ¡£

prepared by vacuum decomposition of AMV and explained with two consecutive reduction processes ( V5+¡úV4+¡úV3+ ) having two rate constants [9] ´Ë¾äÊÇ non-stoichiometric V2O5-¦Ä ( d = 0.07 ) ÕâÖÖÎïÖʵ͍Óï¡£ÓÉÓÚ±¾ÈËרҵÏÞÖÆ£¬ÇëÂ¥Ö÷½áºÏרҵ֪ʶ¶Ô·­ÒëÖеÄϸ½Ú¼ÓÒÔÐ޸ġ£
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