據美國廣播公司(ABC)baodao,shengchanwuqiongwujindeqingjienengyuan,weiwomendeqicheheshoujidengyiqiedongxitigongdongli。zhegemengxiangkenengbingmeiyouwomenyiqianrenweidenamexuwupiaomiao。shijiegedidekexuejiamuqianzhengzaixunzhaoliyongyangguangbashuifenjiechengyangheqingdefangfa,bingqiezhefangmiandenuliyijingqudelezhongdajinzhan。
zhegemubiaofeichangxiyinren,yinweizhaodaocongshuilitiquqingdelianjiafangfa,jianghuizhongjiequanqiunengyuanduanquedenanti,tongshihainengyongshuiheyangguangzheliangzhongtianranchengfenjinghuahuanjing。zhetingqilaisihutaiwanmei,genbenbuxiangshizhende。muqianzhefangmiandenulimianlindetiaozhanqueshihenda,danshiwomenduiqibaochileguantaiduyoujidianyuanyin。guoquyiduanshijian,guowaijigekeyanzuyijinghuibaoletamenzaijiangdiqingqishengchanchengbenfangmianqudedexinjinzhan,chengbenwentishimuqiandeyidazhangai。yucitongshi,qitayanjiuzuyezaiyanzhikeyibuhuohebaocunqingyuanzidecailiaofangmianqudeleyixiechenggong。
由於顯而易見的原因,這方麵的競爭正在愈演愈烈。目前我們仍處在烴類燃料(液體的碳氫化合物)時shi代dai,這zhe是shi因yin為wei這zhe種zhong燃ran料liao很hen容rong易yi獲huo得de,而er且qie產chan生sheng能neng量liang的de效xiao率lv很hen高gao。生sheng產chan像xiang一yi加jia侖lun石shi油you那na麼me多duo的de可ke用yong能neng源yuan需xu要yao消xiao耗hao更geng多duo的de氫qing,目mu前qian石shi油you工gong業ye的de競jing爭zheng極ji其qi激ji烈lie。但dan是shi很hen明ming顯xian,石shi油you並bing不bu是shi無wu窮qiong無wu盡jin的de。不bu過guo現xian在zai這zhe種zhong情qing況kuang應ying該gai變bian一yi變bian了le,如ru果guo氫qing燃ran料liao生sheng產chan取qu得de成cheng功gong,它ta還hai要yao滿man足zu以yi下xia條tiao件jian。首shou先xian是shi生sheng產chan成cheng本ben必bi須xu大da幅fu下xia降jiang。必bi須xu找zhao到dao利li用yong太tai陽yang能neng的de效xiao率lv更geng高gao的de方fang法fa,這zhe是shi因yin為wei在zai任ren何he可ke行xing性xing大da規gui模mo分fen解jie水shui的de方fang法fa中zhong,陽yang光guang是shi一yi種zhong必bi不bu可ke少shao的de關guan鍵jian成cheng分fen。跟gen其qi他ta燃ran料liao一yi樣yang,氫qing存cun在zai的de安an全quan風feng險xian也ye必bi須xu克ke服fu。
氫燃料可降低對石油的依賴
美國正在積極研究把氫當作客車燃料,這麼做的部分原因是因為它"可大大降低美國對進口石油的依賴"。youyuqingranshaobuhuishifangwenshiqiti,yinciyongtahainengyizhiquanqiubiannuan。meiguonengyuanbuzhengzaizizhugaiguodehenduocileiyanjiu,bingyizhidingyixieyiqianrenweigenbenbukenengshixiandemubiao。8個研究協會正在努力實現該部製定的目標:到2015年把氫生產成本降低到每公斤6美元,2025年降低到每公斤2到3美元。迄今為止,隻有科羅拉多大學波爾得分校的一個科研組實現了上述目標。
科羅拉多大學波爾得分校的科研組創建了一個鏡子陣列,用來集中陽光,生成2640華氏度(1448.89攝氏度)的高溫。然後用它直接加熱他們製作的一個金屬鐵酸鹽薄膜,在比其他方法更低的溫度--482°的環境下分解水。在宣布研發進展時,該校化學和生物工程係的艾倫·維梅爾說,較低的溫度使水分解的速度更快,成本更低。他表示:"這具有重大意義,也許它會成為美國西南地區和其他與周圍世界嚴重隔絕的地區的一種主流。"
這(zhe)一(yi)信(xin)息(xi)宣(xuan)布(bu)幾(ji)天(tian)後(hou),幾(ji)名(ming)研(yan)究(jiu)人(ren)員(yuan)彙(hui)報(bao)了(le)攻(gong)克(ke)生(sheng)產(chan)成(cheng)本(ben)麵(mian)臨(lin)的(de)一(yi)個(ge)主(zhu)要(yao)障(zhang)礙(ai)的(de)經(jing)過(guo)。現(xian)在(zai)的(de)商(shang)業(ye)性(xing)氫(qing)生(sheng)產(chan)需(xu)要(yao)把(ba)鉑(bo)當(dang)作(zuo)催(cui)化(hua)劑(ji),這(zhe)種(zhong)金(jin)屬(shu)的(de)價(jia)格(ge)非(fei)常(chang)昂(ang)貴(gui),現(xian)在(zai)每(mei)盎(ang)司(si)高(gao)達(da)大(da)約(yue)1.8萬美元。
未來是否會出現氫動力車
bodeshiyongzuaileqingranliaodepuji,shijieshangmeiyouzugoudeboyonglaishengchanweiqichetigongdonglideqing。aodaliyamonashendaxuedeyigekeyanzufaxian,zaiyanshishangxingchengheisebandiandeyizhongputongkuangwuzhi--shuinamengkuangyekeyichongdangbashuifenjiechengqingheyangdecuihuaji。tamonizhiwuzaishengchangguochengzhongbashuifenjiechengranliaodefangshi,zhebiaomingyexuxianshizhongyoubibogengyouxiaoqielianjiadetidaiwu。
研yan究jiu人ren員yuan在zai報bao告gao裏li指zhi出chu,斯si坦tan福fu大da學xue的de科ke學xue家jia采cai取qu了le類lei似si方fang法fa。他ta們men正zheng在zai研yan究jiu植zhi物wu和he其qi他ta生sheng物wu體ti在zai生sheng長chang過guo程cheng中zhong用yong來lai生sheng產chan燃ran料liao的de天tian然ran催cui化hua劑ji,似si乎hu常chang見jian化hua合he物wu--二硫化鉬在氫生產中可以成為一種"廉價的催化劑"。不過當務之急是尋找一種可以隔離水裏的另一種成分--氧的催化劑,該科研組現在正在用其他礦石進行試驗。如果任由氧到處亂竄,它將會阻塞化學太陽能電池的供能係統。
洛斯阿拉莫斯國家實驗室的科學家采取不同方法,他們把碳、鐵tie和he鈷gu元yuan素su的de混hun合he物wu當dang作zuo催cui化hua劑ji進jin行xing試shi驗yan,目mu前qian已yi經jing取qu得de一yi些xie進jin展zhan。然ran而er,即ji使shi生sheng產chan廉lian價jia氫qing的de目mu標biao即ji將jiang實shi現xian,一yi旦dan你ni獲huo得de這zhe種zhong物wu質zhi,你ni又you如ru何he馴xun服fu它ta?
qingshizuixiaodeyuanzi,tanengziyouchururenhexiaokong。muqiannikeyiyongtaweijiayongqichetigongdongli,danshitahuicongmeiyigeruanguankagulizuanchuqu,gengbuyongxiangbatabaocunzaiputongyouxianglile。xianzaixuyaoyizhongcailiao,nengzaihenxiaodekongjianlibaocundaliangdeqing。ranerzhemianlinyidanandian,najiushixuyaoyanzhiyizhongkeyicunfangqingdeguticailiao。laisidaxuedekexuejiabiaoshi,tamenfaxianyizhongmingjiaometallacarborane的材料存放氫的效果比能源部為2015年(nian)的(de)氫(qing)計(ji)劃(hua)設(she)定(ding)的(de)參(can)考(kao)標(biao)準(zhun)更(geng)好(hao)。加(jia)州(zhou)大(da)學(xue)洛(luo)杉(shan)磯(ji)分(fen)校(xiao)的(de)研(yan)究(jiu)人(ren)員(yuan)稱(cheng),他(ta)們(men)已(yi)經(jing)利(li)用(yong)一(yi)種(zhong)作(zuo)用(yong)原(yuan)理(li)類(lei)似(si)海(hai)綿(mian)的(de)新(xin)材(cai)料(liao)解(jie)決(jue)了(le)儲(chu)存(cun)氫(qing)的(de)問(wen)題(ti)。
ruguosuoyouzhexiexuanxiangdoubeitaotaichuju,yihouwomendeshenghuozhonghaihuichuxianqingdonglichema?xianzaikanqilaishixianzhegemengxiangdekenengxingbijinianqiangengda。danshishuiyebunengbaozhengyidinghuichenggong。womenmeiyoubanfaxiangfenpeiqiyouyiyangfenpeiqing,danshiruguoqingdeqianlizhengruhenduokexuejiarenweidenayangda,zhezhongjichusheshihenkuaijiuhuibeiyanfachulai。raner,muqianzhexiangjingzhengcunzaiyixiewenti:qiyouhechaiyoufadongjidexiaolvyuelaiyuegao,dianchiyeshiruci,zhedaozhihunhedonglichebeiyuelaiyueduoderensuojieshou。yinciqingdonglichebuhuihenkuaibianchengxianshi,buguozhefangmiandenulizhengzaibuduanqudexinjinzhan。