Calcium hydride (CaH2) hmoov yog cov tshuaj lom neeg uas tau txais kev saib xyuas rau nws lub peev xwm ua cov khoom siv hydrogen. Nrog rau kev ua kom pom tseeb ntawm cov khoom siv hluav taws xob tauj dua tshiab thiab qhov xav tau rau lub zog txuag hluav taws xob, cov kws tshawb fawb tau tshawb nrhiav ntau yam ntaub ntawv rau lawv lub peev xwm khaws cia thiab tso tawm cov roj hydrogen. Calcium hydride tau tshwm sim los ua tus neeg sib tw tau zoo vim nws lub peev xwm hydrogen siab thiab cov khoom siv hluav taws xob zoo.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm calcium hydride ua cov khoom siv hydrogen yog nws lub peev xwm gravimetric hydrogen siab, uas yog hais txog cov nyiaj hydrogen uas tuaj yeem khaws cia rau ib chav tsev ntawm cov khoom. Calcium hydride muaj qhov theoretical hydrogen cia muaj peev xwm ntawm 7.6 wt%, ua rau nws yog ib qho zoo tshaj plaws ntawm cov khoom siv hauv lub xeev hydrogen. Qhov no txhais tau hais tias ib qho me me ntawm calcium hydride hmoov tuaj yeem khaws cov nyiaj hydrogen tseem ceeb, ua rau nws muaj kev sib cog lus thiab txuag kev xaiv.
Tsis tas li ntawd, calcium hydride nthuav tawm cov khoom siv hluav taws xob zoo, uas tso cai rau kev thim rov qab thiab tso tawm cov pa roj hydrogen. Thaum raug hydrogen, calcium hydride raug tshuaj lom neeg los tsim calcium hydride hydride (CaH3), uas tuaj yeem tso tawm hydrogen thaum cua sov. Qhov kev muaj peev xwm thim rov qab khaws thiab tso tawm hydrogen ua rau calcium hydride yog cov khoom siv tau zoo thiab muaj ntau yam rau kev siv hydrogen cia.
Ntxiv nrog rau nws cov peev txheej hydrogen siab thiab cov khoom siv thermodynamic zoo, calcium hydride kuj tseem muaj ntau thiab raug nqi piv rau lwm cov khoom siv hydrogen. Qhov no ua rau nws yog qhov kev xaiv txaus nyiam rau cov txheej txheem hydrogen loj, tshwj xeeb tshaj yog nyob rau hauv cov ntsiab lus ntawm lub zog tauj dua tshiab thiab roj cell technologies.
Thaum calcium hydride qhia tau hais tias muaj kev cog lus zoo li cov khoom siv hydrogen, tseem muaj cov teeb meem uas yuav tsum tau daws, xws li kev txhim kho cov kinetics ntawm hydrogen absorption thiab desorption, nrog rau kev txhim kho cov khoom ruaj khov thiab kav ntev. Txawm li cas los xij, kev tshawb fawb thiab kev txhim kho txuas ntxiv tau tsom mus rau kev kov yeej cov teeb meem no thiab qhib lub peev xwm ntawm calcium hydride ua cov khoom siv tau zoo thiab muaj txiaj ntsig hydrogen.
Hauv kev xaus, calcium hydride (CaH2) hmoov tuav lub peev xwm zoo li cov khoom siv hydrogen, muab cov khoom siv hydrogen siab, cov khoom siv hluav taws xob zoo, thiab kev siv nyiaj. Raws li kev tshawb fawb hauv daim teb no txuas ntxiv mus, calcium hydride tuaj yeem ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev siv dav dav ntawm hydrogen ua lub zog huv thiab ruaj khov.
Post lub sij hawm: May-17-2024