新型鈣鈦礦型氧化物表麵處理方法

據https://fuelcellsworks.com/網站報道：mashengligongdaxuedeyanjiurenyuankaifachuleyizhongshiyongde，jiyuwulizuoyongdegaitaikuangxingyanghuawubiaomianchulifangshi，shiqijuyougenghaodenaijiuxinghexingneng。gaixinghoudecailiaokeyongzuoranliaodianchihedianjiechidianjicailiao。cixiangyanjiukandengzailezuixindeNature Materials期刊上。

據悉
，鈣鈦礦是近幾年的研究熱點，在燃料電池
、電dian解jie池chi電dian極ji以yi及ji電dian腦nao儲chu存cun芯xin片pian等deng領ling域yu均jun有you應ying用yong前qian景jing。眾zhong多duo研yan究jiu團tuan隊dui正zheng通tong過guo研yan究jiu材cai料liao不bu同tong的de組zu成cheng成cheng分fen
，以yi達da到dao不bu同tong的de應ying用yong目mu標biao。但dan材cai料liao表biao麵mian的de相xiang對dui不bu穩wen定ding性xing是shi阻zu礙ai鈣gai鈦tai礦kuang應ying用yong的de主zhu要yao障zhang礙ai。在zai溫wen升sheng的de條tiao件jian下xia，當dang材cai料liao暴bao露lu在zai氧yang氣qi和he二er氧yang化hua碳tan等deng水shui合he氣qi體ti中zhong時shi，材cai料liao將jiang發fa生sheng化hua學xue分fen解jie以yi及ji相xiang分fen離li。

在(zai)早(zao)期(qi)的(de)研(yan)究(jiu)中(zhong)，研(yan)究(jiu)人(ren)員(yuan)發(fa)現(xian)材(cai)料(liao)表(biao)麵(mian)的(de)氧(yang)空(kong)位(wei)程(cheng)度(du)決(jue)定(ding)了(le)材(cai)料(liao)的(de)易(yi)破(po)壞(huai)程(cheng)度(du)。氧(yang)空(kong)位(wei)是(shi)晶(jing)體(ti)中(zhong)的(de)氧(yang)原(yuan)子(zi)缺(que)失(shi)。此(ci)項(xiang)發(fa)現(xian)否(fou)定(ding)了(le)過(guo)去(qu)認(ren)為(wei)氧(yang)空(kong)位(wei)有(you)助(zhu)於(yu)鈣(gai)鈦(tai)礦(kuang)型(xing)氧(yang)化(hua)物(wu)的(de)形(xing)成(cheng)
，提(ti)高(gao)燃(ran)料(liao)電(dian)池(chi)中(zhong)氧(yang)還(hai)原(yuan)反(fan)應(ying)速(su)度(du)的(de)的(de)觀(guan)點(dian)。

yanjiurenyuantongguozaigaitaikuangbiaomiantianjiayanghuaxingyuansulaixiaochuyangkongwei
，congerfangzhicailiaobiaomianxingchengzuaiyangjiaohuanfanyingdejueyuanxiangdexingcheng。tongguozhezhongfangshi
，keyishidecailiaobaochiguyoudedaodianxing、離子性和催化性能。

研(yan)究(jiu)人(ren)員(yuan)表(biao)示(shi)，氧(yang)化(hua)性(xing)元(yuan)素(su)的(de)添(tian)加(jia)存(cun)在(zai)一(yi)個(ge)最(zui)佳(jia)點(dian)，當(dang)到(dao)達(da)一(yi)定(ding)的(de)優(you)化(hua)程(cheng)度(du)後(hou)
，過(guo)多(duo)的(de)添(tian)加(jia)劑(ji)將(jiang)使(shi)得(de)材(cai)料(liao)性(xing)能(neng)惡(e)化(hua)。通(tong)過(guo)新(xin)的(de)表(biao)麵(mian)處(chu)理(li)方(fang)式(shi)，材(cai)料(liao)的(de)衰(shuai)退(tui)率(lv)大(da)大(da)降(jiang)低(di)，材(cai)料(liao)表(biao)麵(mian)的(de)氧(yang)交(jiao)換(huan)反(fan)應(ying)速(su)率(lv)提(ti)升(sheng)了(le)30倍。