新型自修複電解水製氫催化劑

juwaimeibaodao
，congshuizhongzhiquqingqishi，youyuhuaxuefushidebukebimianxing，jiangduisuoyongdecuihuajizaochengfushi

，jineryingxiangchanqingliang。weilejiejuezheyiwenti，bohongdaxuehuaxueyanjiuzhongxindehuaxuejiakaifachujuyouziyuxingdexinxingcuihuaji。zaishuidianjiezhiqingdefushitiaojianxia，zhiyaocuihuajidezuchengchengfencunzaiyudianjiezhirongyezhong

，zheyixinxingcuihuajijiukeyizifaxingchengyudianjibiaomian。laizibohongdaxuedeStefan Barwe、Wolfgang Schuhmann

、Edgar Ventosa等在Angewandte Chemie國際版雜誌上對這一成果進行了報道。

氫(qing)氣(qi)被(bei)認(ren)為(wei)是(shi)未(wei)來(lai)能(neng)源(yuan)。但(dan)是(shi)，找(zhao)到(dao)合(he)適(shi)的(de)催(cui)化(hua)劑(ji)來(lai)製(zhi)取(qu)氫(qing)氣(qi)是(shi)一(yi)直(zhi)是(shi)一(yi)大(da)難(nan)題(ti)。目(mu)前(qian)合(he)成(cheng)氫(qing)氣(qi)大(da)多(duo)是(shi)電(dian)解(jie)水(shui)得(de)到(dao)的(de)，在(zai)電(dian)解(jie)過(guo)程(cheng)中(zhong)，一(yi)極(ji)產(chan)生(sheng)氫(qing)氣(qi)，另(ling)一(yi)極(ji)產(chan)生(sheng)氧(yang)氣(qi)。電(dian)解(jie)期(qi)間(jian)，催(cui)化(hua)層(ceng)覆(fu)蓋(gai)在(zai)電(dian)極(ji)上(shang)，會(hui)受(shou)到(dao)化(hua)學(xue)腐(fu)蝕(shi)而(er)失(shi)效(xiao)。

在(zai)可(ke)行(xing)性(xing)研(yan)究(jiu)中(zhong)，波(bo)鴻(hong)大(da)學(xue)的(de)化(hua)學(xue)家(jia)展(zhan)示(shi)了(le)創(chuang)建(jian)具(ju)有(you)高(gao)度(du)穩(wen)定(ding)性(xing)的(de)催(cui)化(hua)劑(ji)膜(mo)的(de)新(xin)方(fang)法(fa)。他(ta)們(men)將(jiang)粉(fen)末(mo)形(xing)式(shi)納(na)米(mi)催(cui)化(hua)劑(ji)顆(ke)粒(li)添(tian)加(jia)到(dao)電(dian)解(jie)質(zhi)溶(rong)液(ye)中(zhong)。通(tong)過(guo)電(dian)極(ji)室(shi)顆(ke)粒(li)與(yu)電(dian)極(ji)表(biao)麵(mian)發(fa)生(sheng)碰(peng)撞(zhuang)，基(ji)於(yu)靜(jing)電(dian)吸(xi)引(yin)力(li)會(hui)形(xing)成(cheng)新(xin)的(de)顆(ke)粒(li)膜(mo)。表(biao)麵(mian)帶(dai)有(you)正(zheng)電(dian)荷(he)的(de)顆(ke)粒(li)沉(chen)積(ji)在(zai)陽(yang)極(ji)
，表(biao)麵(mian)帶(dai)有(you)負(fu)電(dian)荷(he)的(de)顆(ke)粒(li)沉(chen)積(ji)在(zai)陰(yin)極(ji)上(shang)，實(shi)現(xian)了(le)催(cui)化(hua)膜(mo)的(de)再(zai)生(sheng)。通(tong)過(guo)相(xiang)同(tong)的(de)機(ji)理(li)，催(cui)化(hua)劑(ji)膜(mo)會(hui)在(zai)反(fan)應(ying)期(qi)間(jian)再(zai)生(sheng)。溶(rong)液(ye)中(zhong)的(de)新(xin)納(na)米(mi)顆(ke)粒(li)移(yi)動(dong)到(dao)電(dian)極(ji)會(hui)修(xiu)複(fu)磨(mo)損(sun)的(de)催(cui)化(hua)劑(ji)膜(mo)。隻(zhi)要(yao)溶(rong)液(ye)中(zhong)存(cun)在(zai)催(cui)化(hua)劑(ji)顆(ke)粒(li)
，這(zhe)一(yi)自(zi)愈(yu)過(guo)程(cheng)就(jiu)會(hui)持(chi)續(xu)進(jin)行(xing)。研(yan)究(jiu)人(ren)員(yuan)分(fen)別(bie)測(ce)試(shi)了(le)兩(liang)種(zhong)不(bu)同(tong)的(de)催(cui)化(hua)劑(ji)粉(fen)末(mo)用(yong)於(yu)不(bu)同(tong)電(dian)極(ji)（鎳基材料和鈷基材料）的de使shi用yong效xiao果guo。通tong過guo電dian子zi顯xian微wei鏡jing觀guan察cha確que認ren，兩liang種zhong實shi驗yan電dian極ji上shang都dou形xing成cheng了le新xin的de納na米mi薄bo膜mo。測ce試shi結jie果guo還hai表biao明ming，新xin形xing成cheng的de催cui化hua劑ji膜mo可ke以yi穩wen定ding工gong作zuo幾ji天tian，確que保bao電dian解jie水shui產chan生sheng氫qing氣qi。

在zai未wei來lai的de研yan究jiu中zhong，化hua學xue家jia將jiang進jin一yi步bu深shen入ru研yan究jiu催cui化hua劑ji顆ke粒li尺chi寸cun以yi及ji電dian解jie質zhi溶rong液ye對dui催cui化hua劑ji效xiao率lv和he穩wen定ding性xing的de影ying響xiang。波bo鴻hong大da學xue的de這zhe一yi研yan究jiu項xiang目mu得de到dao了le德de國guo研yan究jiu基ji金jin會hui以yi及ji德de國guo聯lian邦bang教jiao育yu和he研yan究jiu部bu的de支zhi持chi。