石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)的(de)(de)(de)(de)(de)(de)(de)(de)(de)石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)化(hua)(hua)(hua)爐(lu)高(gao)(gao)溫高(gao)(gao)壓法是什么
石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)因(yin)其耐高(gao)(gao)溫、高(gao)(gao)強度(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)性質,石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)也(ye)常常在(zai)冶(ye)煉行(xing)業(ye)中用(yong)(yong)來(lai)制(zhi)作石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)坩堝和(he)(he)冶(ye)金爐(lu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)內襯。石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)化(hua)(hua)(hua)爐(lu)廠家(jia)認為(wei)(wei),較(jiao)為(wei)(wei)重要的(de)(de)(de)(de)(de)(de)(de)(de)(de)是石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)具(ju)有(you)(you)優良(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)導(dao)電(dian)(dian)(dian)(dian)(dian)性,因(yin)此被用(yong)(yong)做電(dian)(dian)(dian)(dian)(dian)極(ji)材料(liao)和(he)(he)復合(he)(he)材料(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)基礎材料(liao)。這使(shi)其應(ying)用(yong)(yong)在(zai)高(gao)(gao)科技領域實現高(gao)(gao)值(zhi)化(hua)(hua)(hua)利用(yong)(yong)成(cheng)為(wei)(wei)可(ke)(ke)能(neng)。
石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)因(yin)具(ju)有(you)(you)高(gao)(gao)可(ke)(ke)逆容量(liang),良(liang)(liang)(liang)好(hao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)導(dao)電(dian)(dian)(dian)(dian)(dian)性,良(liang)(liang)(liang)好(hao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)充放(fang)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)位(wei)分布和(he)(he)相對(dui)較(jiao)低的(de)(de)(de)(de)(de)(de)(de)(de)(de)成(cheng)本廣泛被應(ying)用(yong)(yong)于能(neng)源(yuan)存儲設備;將石(shi)(shi)(shi)(shi)(shi)油焦(jiao)在(zai)2600℃石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)化(hua)(hua)(hua)爐(lu)石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)化(hua)(hua)(hua)后,石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)化(hua)(hua)(hua)度(du)高(gao)(gao)達78.8%,將其用(yong)(yong)作鋰(li)離子(zi)電(dian)(dian)(dian)(dian)(dian)池(chi)負極(ji)材料(liao),***充放(fang)電(dian)(dian)(dian)(dian)(dian)比(bi)容量(liang)達到326.1 mA·h·g-1,庫侖效率達78.8%,展示了(le)優越(yue)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)化(hua)(hua)(hua)學(xue)性能(neng);
石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)化(hua)(hua)(hua)爐(lu)使(shi)用(yong)(yong)煙煤(mei)作為(wei)(wei)前驅體,通(tong)過初步炭化(hua)(hua)(hua)以及(ji)在(zai)2000~-2 800℃下進一步的(de)(de)(de)(de)(de)(de)(de)(de)(de)高(gao)(gao)溫石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)化(hua)(hua)(hua)處(chu)理(li)來(lai)制(zhi)備合(he)(he)成(cheng)石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)材料(liao)。結果表(biao)明(ming),合(he)(he)成(cheng)石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)材料(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)微(wei)觀結構(gou)強烈依賴于爐(lu)子(zi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)化(hua)(hua)(hua)溫度(du)。人工合(he)(he)成(cheng)石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)在(zai)2800℃下爐(lu)子(zi)石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)化(hua)(hua)(hua),具(ju)有(you)(you)完全有(you)(you)序的(de)(de)(de)(de)(de)(de)(de)(de)(de)層狀結構(gou),石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)化(hua)(hua)(hua)程度(du)高(gao)(gao),表(biao)面積較(jiao)大,中孔(kong)發(fa)育良(liang)(liang)(liang)好(hao),為(wei)(wei)炭基質中鋰(li)離子(zi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)化(hua)(hua)(hua)學(xue)嵌入-脫嵌提供了(le)良(liang)(liang)(liang)好(hao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)途徑(jing)。
使(shi)用(yong)(yong)兩種不同特性的(de)(de)(de)(de)(de)(de)(de)(de)(de)無煙煤(mei)在(zai)2400~-2 800℃的(de)(de)(de)(de)(de)(de)(de)(de)(de)石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)化(hua)(hua)(hua)爐(lu)溫度(du)范圍內通(tong)過熱處(chu)理(li)制(zhi)備了(le)石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo),并測試(shi)了(le)其在(zai)鋰(li)離子(zi)電(dian)(dian)(dian)(dian)(dian)池(chi)中作為(wei)(wei)陽極(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)化(hua)(hua)(hua)學(xue)性能(neng)。兩種無煙煤(mei)制(zhi)備的(de)(de)(de)(de)(de)(de)(de)(de)(de)石(shi)(shi)(shi)(shi)(shi)墨(mo)(mo)(mo)(mo)(mo)材料(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)晶體參(can)數(shu)之(zhi)間具(ju)有(you)(you)相當好(hao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)線性相關性。