新型鉑納米籠催化劑

據國外網站報道：美國威斯康星大學麥迪遜分校、亞(ya)利(li)桑(sang)那(na)州(zhou)立(li)大(da)學(xue)以(yi)及(ji)中(zhong)國(guo)廈(sha)門(men)大(da)學(xue)的(de)研(yan)究(jiu)人(ren)員(yuan)聯(lian)合(he)開(kai)發(fa)出(chu)了(le)一(yi)種(zhong)新(xin)型(xing)的(de)催(cui)化(hua)劑(ji)製(zhi)備(bei)方(fang)法(fa)，可(ke)以(yi)減(jian)少(shao)燃(ran)料(liao)電(dian)池(chi)催(cui)化(hua)劑(ji)中(zhong)貴(gui)重(zhong)金(jin)屬(shu)的(de)用(yong)量(liang)，並(bing)且(qie)提(ti)高(gao)催(cui)化(hua)活(huo)性(xing)。新(xin)型(xing)催(cui)化(hua)劑(ji)具(ju)有(you)中(zhong)空(kong)結(jie)構(gou)
，與(yu)過(guo)往(wang)相(xiang)關(guan)研(yan)究(jiu)成(cheng)果(guo)相(xiang)比(bi)
，使(shi)用(yong)新(xin)的(de)製(zhi)備(bei)方(fang)法(fa)製(zhi)備(bei)的(de)中(zhong)空(kong)結(jie)構(gou)具(ju)有(you)更(geng)薄(bo)的(de)壁(bi)麵(mian)。

在最新的製備方法中，鉑金附著在鈀納米晶體模板上，當鈀模板被腐蝕後
，將形成20nm左右的鉑納米籠，鉑層厚度為3-6個鉑原子直徑。與前期的中空結構相比，壁厚從原來的5nm下降到小於1nm
，neiwaibidebojindoukeyibeichongfenliyong。zaigongyeyijixiaofeilingyu
，bodoushizhongyaodeguijinshu

，zairanliaodianchiyinjizhong，xuyaoshiyongdaliangbocuihuayanghaiyuanfanying，gucheyongyijijiazhongdiwenranliaodianchideyingyongdoushouxianyubodegaoangdechengben。ruobaxindecuihuajicailiaoyingyongzairanliaodianchishang，bodeliyongxiaolvjiangtisheng7倍
，從而使得燃料電池的經濟性大大提升。

zaidianhuaxuefanyingzhong，bobiaomiantigonghuoxingweigongcuihuafanyingdejinxing

，yanjiurenyuanzhezhongyanjiuruhezengjiabobiaomianyufanyingwujiechumianjizheyiwenti。zaixindezhibeifangfazhong，yiwangbucanyufanyingdeyibufenfeibiyaodebojinbeiyichu
，congertigaolebodeliyonglv，bingqiexiangduijiaodadenamijingtiyekefangzhicuihuajituanjudailaicuihuahuoxingdexiajiang。