Electrode yog dab tsi?
Raws li kev txhais ntawm cov electrode, nws yog ib yam khoom uas yog tus cwj pwm zoo ntawm hluav taws xob thiab cov tshuaj no feem ntau txuas cov khoom tsis yog xim hlau ntawm lub Circuit Court piv txwv li cov khoom siv hluav taws xob, electrolyte, plasmas, nqus lossis txawm tias huab cua. Lo lus no yog thawj zaug tsim los ntawm William Whewell thiab los ntawm Greek lo lus Elektron, uas txhais tau tias "amber" thiab hodos uas txhais tau tias "txoj kev."
Ib qho hluav taws xob thaum ntxov ntawm hluav taws xob yog lub xaim hluav taws xob uas tau siv los kawm hluav taws xob zoo li qub. Nws tau tsim los ntawm Johan Wilcke. Txhawm rau pab koj nkag siab lub tswv yim hauv cov lus yooj yooj yim, qhov electrode yog qhov uas tam sim no nkag thiab tawm ntawm qhov hluav taws xob. Tsim nyog, hluav taws xob tsis tas yuav tsum muaj hlau.
Thaum kawm cov ntawv electrodes, muaj ob peb yam uas peb tuaj hla. Ob lo lus nquag uas peb tau hnov yog cathode thiab anode. Lub cathode yog qhov tam sim no uas tawm cov hluav taws xob lossis cathode yog qhov tshwm sim ntawm kev txo tawm cov tshuaj tiv thaiv noj nyob rau hauv qhov sib xyaw electrolyte. Ntawm no cov hluav taws xob raug tso tawm los ntawm cov electrode thiab cov kev daws teeb meem ib puag ncig txo qis.
Cov Qauv thiab Piv Txwv ntawm Electrodes
Ntawm no peb yuav saib ib co piv txwv ntawm cov electrodes.
Muaj feem ntau yog ob hom electrodes uas yog reactive thiab inert electrodes.
Hom inert tsis koom nrog ib qho tshuaj tiv thaiv thaum cov hom reactive koom tes nrog cov tshuaj tiv thaiv.
Qee cov inert electrodes feem ntau siv platinum, kub, graphite (carbon), thiab rhodium.
Qee cov xaim hluav taws xob muaj xws li zinc, tooj liab, txhuas, thiab nyiaj.
Whereas thaum lub sij hawm tam sim no nkag mus thaum oxidation cov tshuaj tiv thaiv nws yog hu ua anode. Xws li, electrodes yog cov khoom siv tseem ceeb hauv cov xov hluav taws xob thaum lawv thauj cov khoom siv hluav taws xob los ntawm ib nrab-ntawm tes mus rau lwm qhov, uas ua rau muaj hluav taws xob tsim hluav taws xob.
Siv ntawm Electrodes
Kev siv hluav taws xob tseem ceeb yog tsim kom muaj hluav taws xob tam sim no thiab dhau los ntawm cov khoom siv tsis yog hlau los cia li hloov lawv ob peb txoj hauv kev. Kev siv hluav taws xob kuj siv los ntsuas kev ua tiav. Lwm yam kev siv suav nrog:
Cov xaim hluav taws xob yog siv ntau hom roj teeb, electroplating thiab electrolysis, vuam, tiv thaiv cathodic, membrane electrode sib dhos, rau tshuaj lom neeg tshuaj xyuas, thiab Taser electroshock riam phom. Hauv thaj chaw kho mob, electrodes tseem siv hauv ECG, ECT, EEG, thiab defibrillator. Cov khoom siv hauv tshuab hluav taws xob tau txuas ntxiv rau electrophysiology cov tswv yim hauv kev tshawb nrhiav biomedical.