Hav nyob ntawd! Raws li tus neeg muag khoom ntawm Graphite Bipolar Phaj, Kuv tau txais ntau cov lus nug tsis ntev los no hais txog yuav ua li cas cov phiaj no ua haujlwm hauv cov kua qaub. Yog li, kuv xav tias kuv yuav qhia qee qhov kev nkag siab raws li peb qhov kev paub dhau los thiab kev tshawb fawb tshiab.
Ua ntej tshaj, cia peb tham txog dab tsi graphite bipolar daim hlau yog. Lawv yog cov khoom tseem ceeb hauv cov roj hlwb, uas yog cov khoom siv uas hloov cov tshuaj lom neeg rau hauv hluav taws xob. Cov phaj no ua lub luag haujlwm tseem ceeb hauv kev sib cais cov anode thiab cathode, ua hluav taws xob, thiab ua kom yooj yim ntws ntawm cov roj reactant.
Tam sim no, thaum nws los txog rau ib puag ncig acidic, tej yam tuaj yeem ua tau me ntsis. Cov kua qaub tuaj yeem ua rau corrosive, thiab lawv tuaj yeem ua rau cov phaj bipolar puas thaum lub sijhawm. Tab sis ntawm no yog cov xov xwm zoo: graphite paub txog nws cov tshuaj tiv thaiv zoo heev, tshwj xeeb tshaj yog thaum nws los txog rau cov kua qaub.
Graphite yog ib daim ntawv ntawm cov pa roj carbon, thiab nws cov qauv muab nws qee yam khoom tshwj xeeb. Cov pa roj carbon atoms hauv graphite yog txheej txheej, thiab cov txheej txheem no tau tuav ua ke los ntawm cov tsis muaj zog van der Waals. Cov qauv no ua rau graphite ruaj khov thiab tiv taus tshuaj tua kab mob.
Hauv ib puag ncig acidic, kev ua haujlwm ntawm graphite bipolar daim hlau nyob ntawm ntau yam. Ib qho tseem ceeb tshaj plaws yog hom kua qaub. Cov kua qaub sib txawv muaj qib sib txawv ntawm corrosiveness. Piv txwv li, muaj zog acids xws li sulfuric acid thiab hydrochloric acid yog corrosive dua li cov acids tsis muaj zog xws li acetic acid.
Lwm qhov tseem ceeb yog qhov concentration ntawm cov kua qaub. Qhov siab dua ntawm cov kua qaub feem ntau txhais tau tias muaj kev cuam tshuam ntau dua. Yog li, yog tias cov phaj bipolar raug rau cov kua qaub ntau ntau, lawv yuav muaj kev puas tsuaj loj dua nyob rau lub sijhawm.
Qhov kub thiab txias kuj ua lub luag haujlwm. Kev kub siab dua tuaj yeem ua rau muaj tshuaj lom neeg, nrog rau kev xeb. Yog li, yog tias qhov chaw acidic tseem kub, cov graphite bipolar daim hlau yuav ua rau muaj kev puas tsuaj ntau dua.
Txawm hais tias cov kev sib tw no, graphite bipolar daim hlau tau pom tias muaj kev ua tau zoo hauv ntau qhov chaw acidic. Hauv kev siv roj hluav taws xob, piv txwv li, cov phaj bipolar feem ntau raug rau ib qho me ntsis acidic electrolyte. Cov graphite cov tshuaj tiv thaiv yuav pab kom ntseeg tau tias cov phiaj xwm tuaj yeem tiv taus ib puag ncig no thiab tuav lawv cov haujlwm ntev ntev.
Ib qho ntawm qhov zoo ntawm kev siv graphite bipolar daim hlau nyob rau hauv acidic ib puag ncig yog lawv cov hluav taws xob conductivity. Graphite yog ib qho zoo conductor ntawm hluav taws xob, uas yog qhov tseem ceeb rau kev ua haujlwm zoo ntawm cov roj hlwb. Txawm tias muaj cov kua qaub, cov graphite tseem tuaj yeem ua hluav taws xob zoo, tso cai rau cov roj cell los tsim lub zog.
Ntxiv nrog rau lawv cov hluav taws xob conductivity, graphite bipolar daim hlau kuj muaj cov khoom siv zoo. Lawv kuj muaj zog thiab tuaj yeem tiv taus cov kev ntxhov siab uas tshwm sim thaum lub sijhawm ua haujlwm ntawm cov roj cell. Qhov no txhais tau hais tias lawv tsis tshua muaj kev tawg lossis tawg, txawm tias nyob rau hauv hnyav acidic mob.
Txawm li cas los xij, nws tseem ceeb heev uas yuav tsum nco ntsoov tias tsis muaj cov khoom siv tiv thaiv corrosion. Sij hawm dhau mus, txawm tias graphite bipolar daim hlau yuav muaj qee qhov kev puas tsuaj hauv ib puag ncig acidic. Yuav kom txo qis qhov no, nws yog ib qho tseem ceeb uas yuav tau xaiv cov qib zoo ntawm graphite thiab siv cov kev ntsuas tsim nyog los tiv thaiv cov phiaj.
Piv txwv li, peb muab ntau yam ntawm graphite bipolar daim hlau uas tsim tshwj xeeb rau kev siv nyob rau hauv acidic ib puag ncig. Cov phaj no yog tsim los ntawm siab - cov ntaub ntawv graphite zoo uas tau raug kho los txhim kho lawv cov tshuaj tiv thaiv. Peb kuj muab cov coatings thiab kev kho deg uas tuaj yeem tiv thaiv cov hlau txuas ntxiv los ntawm corrosion.
Yog tias koj tab tom nrhiav lwm cov khoom siv graphite rau koj daim ntawv thov, peb kuj muaj qee qhov kev xaiv zoo. Mus saib peb PECVD Graphite Nkoj, Graphite Base Susceptors, thiab Graphite Cheebtsam. Cov khoom no kuj yog tsim los ntawm siab - zoo graphite thiab haum rau ntau yam kev siv.
Hauv kev xaus, graphite bipolar daim hlau tau pom tias muaj kev ua tau zoo hauv cov cheeb tsam acidic. Lawv cov tshuaj tiv thaiv, hluav taws xob conductivity, thiab cov khoom siv kho tshuab ua rau lawv xaiv qhov tsim nyog rau kev siv roj cell thiab lwm yam kev siv uas lawv yuav raug rau cov kua qaub. Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tau xaiv cov qib zoo ntawm graphite thiab siv cov kev ntsuas tsim nyog los tiv thaiv cov phaj kom ntseeg tau tias lawv ua haujlwm ntev -.
Yog tias koj xav paub ntxiv txog peb cov graphite bipolar daim hlau lossis lwm yam khoom siv graphite, lossis yog tias koj muaj lus nug txog lawv qhov kev ua tau zoo hauv cov kua qaub ib puag ncig, tsis txhob yig tiv tauj. Peb nyob ntawm no los pab koj nrhiav cov kev daws teeb meem zoo tshaj plaws rau koj cov kev xav tau. Cia peb pib sib tham thiab saib seb peb tuaj yeem ua haujlwm ua ke kom tau raws li koj qhov yuav tsum tau ua.
Cov ntaub ntawv
"Fuel Cell Bipolar Phaj: Cov Khoom Siv, Tsim, thiab Kev Tsim Khoom" los ntawm X. Zhang thiab SJ Huang
"Graphite: Structure, Properties, and Applications" los ntawm MS Dresselhaus thiab G. Dresselhaus
"Corrosion of Graphite in Acid Environments" los ntawm RA Cottis thiab DA Jones