Hauv kev tshawb fawb txog electrochemistry, qhov ua tau zoo thiab kev ua tau zoo ntawm cov hlwb electrochemical yog qhov tseem ceeb tshaj plaws. Ntawm ntau yam khoom uas pab txhawb rau kev ua tau zoo, cov anodes ruaj khov ua lub luag haujlwm tseem ceeb. Cov electrodes ruaj khov no tsis yog tsuas yog cov khoom passive xwb; lawv yog lub hauv paus ntawm lub cev electrochemical, uas cuam tshuam rau tag nrho cov tshuaj tiv thaiv kinetics, kev ruaj khov, thiab lub neej ntawm lub hlwb.
Cov anodes ruaj khovtau tsim los kom nyob ruaj khov thaum lub sijhawm ua haujlwm electrochemical, muab lub platform ruaj khov rau cov tshuaj tiv thaiv oxidation uas tshwm sim ntawm anode. Qhov kev ruaj khov no yog qhov tseem ceeb rau kev tswj hwm kev ua haujlwm tas mus li. Tsis zoo li cov anodes txav tau lossis tig tau, cov anodes ruaj khov tshem tawm qhov nyuaj uas cuam tshuam nrog kev txav mus los, ua rau kev tsim thiab kev ua haujlwm ntawm cov hlwb electrochemical yooj yim dua.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm cov anodes ruaj khov yog lawv lub peev xwm los ua kom muaj txiaj ntsig zoo ntawm cov tshuaj tiv thaiv electrochemical. Los ntawm kev muab qhov chaw ruaj khov rau kev hloov pauv electron, cov anodes ruaj khov txhawb kev oxidation ntawm cov reactants, yog li ua rau muaj qhov ceev tam sim no thiab txhim kho kev ua haujlwm ntawm lub cell tag nrho. Qhov no tseem ceeb heev rau cov ntawv thov xws li electrolysis, roj cell, thiab roj teeb, qhov twg kev ua kom zoo tshaj plaws ntawm cov tshuaj tiv thaiv electrochemical tuaj yeem cuam tshuam rau cov zis hluav taws xob thiab cov nqi khiav lag luam.
Tsis tas li ntawd xwb, cov anodes uas nyob ruaj khov tuaj yeem tsim los ntawm kev siv ntau yam khoom siv los ua kom lawv ua tau zoo tshaj plaws. Cov khoom siv feem ntau suav nrog graphite, platinum, thiab ntau yam hlau oxides, txhua yam muaj cov yam ntxwv tshwj xeeb uas tuaj yeem ua kom cov tshuaj electrochemical zoo dua. Piv txwv li, graphite anodes paub txog lawv cov conductivity zoo heev thiab kev ruaj khov tshuaj lom neeg, ua rau lawv zoo tagnrho rau ntau yam kev siv. Ntawm qhov tod tes, platinum anodes feem ntau siv rau hauv cov roj teeb ua haujlwm siab vim lawv cov khoom catalytic zoo heev.
Tus qauv tsim ntawm lub anode ruaj khov kuj tseem ua lub luag haujlwm tseem ceeb hauv nws qhov ua tau zoo. Cov yam xws li thaj chaw saum npoo, porosity, thiab morphology tuaj yeem cuam tshuam rau kev ua haujlwm electrochemical. Thaj chaw saum npoo loj dua tso cai rau ntau qhov chaw nquag ua haujlwm, thaum lub qauv porous tuaj yeem txhim kho kev thauj khoom, ua kom ntseeg tau tias cov reactants ncav cuag lub anode zoo. Cov kws tshawb fawb ib txwm tshawb nrhiav cov qauv tsim tshiab thiab cov ntaub ntawv los txhim kho kev ua tau zoo ntawm cov anodes ruaj khov thiab thawb cov kev txwv ntawm cov thev naus laus zis electrochemical.
Ntxiv rau kev txhim kho kev ua haujlwm zoo, cov anodes ruaj khov pab txuas lub neej ntawm cov cell electrochemical thiab txhim kho kev ruaj khov ntawm cell. Los ntawm kev muab lub platform ruaj khov thiab txhim khu kev qha rau cov tshuaj tiv thaiv, lawv pab txo cov teeb meem xws li kev puas tsuaj ntawm electrode thiab passivation, uas tuaj yeem ua rau kev ua haujlwm poob qis dhau sijhawm. Qhov kev ruaj khov no tseem ceeb heev rau cov ntawv thov kev lag luam, qhov twg lub sijhawm tsis ua haujlwm thiab cov nqi txij nkawm siab.
Raws li qhov kev thov rau cov kev daws teeb meem hluav taws xob zoo txuas ntxiv mus, qhov tseem ceeb ntawm cov anodes ruaj khov hauv cov hlwb electrochemical tsis tuaj yeem raug kwv yees qis. Lawv lub peev xwm los ua kom muaj txiaj ntsig zoo dua, txhim kho kev ruaj khov, thiab txuas lub neej ntawm cov kab ke electrochemical ua rau lawv yog ib qho tseem ceeb hauv kev txhim kho cov thev naus laus zis hluav taws xob siab heev. Txij li lub zog rov ua dua tshiab mus rau cov kev daws teeb meem khaws cia hluav taws xob, cov anodes ruaj khov tab tom paving txoj hauv kev rau yav tom ntej ruaj khov dua thiab ua haujlwm tau zoo dua.
Hauv kev xaus,cov anodes ruaj khovyog lub hauv paus tseem ceeb ntawm cov hlwb electrochemical zoo. Lawv txoj kev tsim, kev xaiv cov khoom siv, thiab kev ruaj khov ua haujlwm yog cov yam tseem ceeb uas cuam tshuam rau kev ua haujlwm ntawm ntau yam kev siv electrochemical. Raws li kev tshawb fawb thiab kev txhim kho hauv daim teb no txuas ntxiv mus, peb tuaj yeem cia siab tias yuav pom ntau cov kev daws teeb meem tshiab uas siv cov khoom tshwj xeeb ntawm cov anodes ruaj khov, txhawb nqa cov thev naus laus zis electrochemical thiab nws cov ntawv thov hauv peb lub neej txhua hnub.
Lub sijhawm tshaj tawm: Lub Peb Hlis-24-2025