PBO2 Coated Titanium Anode

PBO2 muaj qhov zoo ntawm kev ua haujlwm zoo, kev rov qab zoo ntawm kev them nqi thiab tawm, thiab tus nqi tsawg. Nws yog dav siv los ua qhov zoo electrode ntawm cov thawj coj-acid-acid roj teeb. Tam sim no, tus nqi siv ua las voos txhuas, cov khoom siv roj hluav taws xob zoo ntawm cov roj teeb, tsis yog siab dua 50%. Cov pa evolygen evoluting muaj peev xwm yog siab, feem ntau 1.75v (feem pua ​​rau calomel electrode), thiab nws muaj lub zog muaj zog rau kev saib tsis taus cov organic (cod).
Nyob rau hauv cov pa Evygen Evolution ib puag ncig, tib neeg tau tsim cov tshuaj txhuas cov tshuaj txhuas (PBO2): Nws yog tus kab mob tsis txaus thiab ua kom muaj oxygen tsis txaus. Nws muaj cov ntawv siv lead ua ntau yam. -PBO2 plated los ntawm anodic electrodeposition: nws muaj cov yam ntxwv ntawm kev daws teeb meem a-accogen, thiab muaj peev xwm dhau cov roj ntsha elecents, thiab tuaj yeem dhau loj loj, uas muaj kev txhim kho zoo kawg nkaus. Nws tau siv dav hauv electroplating, smelting, kev kho dej khib nyiab thiab lwm daim teb (xws li DSA, txhuas thiab titanium plating).

Theoretical lub hauv paus rau kev npaj cov hmoov txhuas leadodes

Lub PBO2 Cov txheej txheem saum npoo yog feem ntau npaj los ntawm kev siv hluav taws xob. Nws muaj thiab cov ntaub ntawv siv lead ua thiab cov lead ua. -PBO2 muaj zoo corrosion tsis kam thiab corrosion tsis kam thiab kev coj ua tau zoo thiab feem ntau yog siv los ua cov txheej txheem saum toj ntawm electrode. Txawm li cas los xij, -PBO2 muaj lub zog khi tau muaj zog, thiab nws omic atomic kev deb yog nruab nrab ntawm "hauv qab txheej txheem sib nrug, thiab nce affinity nruab nrab ntawm cov npoo thiab hauv qab txheej. Yog li ntawd, hauv cov txheej txheem electroplating, -type PBO2 tuaj yeem tso raws li cov kev mob alkaline muaj zog ua ntej, thiab tom qab ntawd -type
PBO2 Electrodeposition ua ntej ua cov kev ua yeeb yam oxygen xws li kev tsim cov txheej txheej ntawm nruab nrab, ua raws li kev tsim cov txheej txheem soluble, thiab thaum kawg oxidized los ua tus pbound) txheej. Txheej Txheem Txheej Txheem yog: coj Dioxide Anode

H2O → Ohads + h ++ e-

Pb {2++ Ohads → pb (huag) {1}}

PB (Huag) 2++ h2o → pbo → pbo {2}} h {3}} e-

Musiani li al. Teev qhov sib npaug rau anodic oxidation nyob rau hauv ib tug tshem tawm hlau ion daws teeb meem xws li: mn {} → mo (m + n) Matrix
Kev thov cov hmoov txhuas dioxide titanium electrode

Nyob rau hauv ib qho pa oxygen evolution ib puag ncig, Leading Dioxide electrode tau tsim. PBO2 yog cov tsis-stoichiometric sib txuas nrog oxygen tsis txaus thiab dhau kev txhuas. Nws muaj cov ntawv siv lead ua ntau yam. -PBO2 plated los ntawm anodic electrodeposition muaj cov yam ntxwv ntawm anti-oxidation muaj peev xwm thaum muaj cov roj ntsha elecents, thiab tau dhau cov roj av muaj zog, uas muaj kev txhim kho loj heev. Nyob rau tam sim no, nws tau siv dav hauv electroplating, smelting, carde corrosion tiv thaiv thiab lwm yam hluav taws xob (xws li DSA, txhuas, titanium plating).

Lead Dioxide electrode muaj cov yam ntxwv ntawm kev tsis yeem, cov khoom siv hluav taws xob ruaj khov, zoo corrosity, thiab tuaj yeem kis loj tam sim no. Nws yog dav siv nyob rau hauv electrolytic kev npaj ntawm ntau yam tshuaj organic thiab cov dej phwj tuaj thiab cov txheej txheem dej phwj tuaj, thiab muaj ntau cov ntawv thov.
3.1 Inorganic tshuaj kev lag luam

3.1.1 halogenates, PBO2 Electrodes tau siv nyob rau hauv choloror kev lag luam ntev. Kev tsim cov bromate thiab iodate nrog PBO2 Electrodes yog tus ua kom paub tab, tshwj xeeb yog Iodate. Vim yog tus qauv saum npoo ntawm PBO2 Electrodes, Ntxiv rau cov khoom siv Electrochemical, nws tseem ua lub luag haujlwm catalytic.

3.1.2 electrolysis ntawm h2o2

PT feem ntau yog siv hluav taws xob rau electrolytic ntau lawm ntawm h2o2. Qee tus neeg tau kawm txog kev siv MNO2, FE3O4, graphite, thiab lwm yam raws li cov khoom anode, tab sis tsis muaj leej twg tau ua tiav. Txawm li cas los xij, PBO2 raws li anode tau ua tiav cov txiaj ntsig kev lag luam zoo. Vim tias cov dhau ntawm PBO2 electrode rau oxygen yog qis dua li ntawd ntawm PBBO2 electrode los hloov pt electrode. Thaum lub sijhawm World War II, Nyiv tsis tsimnyum, thiab H2o2 tau tsim kev ua tub rog, yog li hauv}, kev lag luam ntawm PBO2 electrode tau ua tiav nyob rau hauv ib tug poob rau ib tug poob.

3.2 organic tshuaj lom neeg

Daim ntawv thov PBO2 electrode nyob rau hauv cov organic synthesis tsis yog li loj heev li uas nyob rau hauv inorganic synthesis, thiab ntau tus tseem tab tom tshawb nrhiav.

3.2.1 haloform. Nyob rau hauv kev npaj ntawm haloform, cov kim pt electrode yog hloov los ntawm PBO2 electrode, thiab cov nyhuv yog qhov zoo tagnrho. Feem ntau cov haujlwm haum rau chloroform electrosynthesis yog: nacl 3 {{{}}}}} 0g / l, ph 8 ~ 70 degree; Anode tam sim no ceev 0. {{{{}}. 5A / m2, kev sib zog ntawm tes thib peb%, kev hloov pauv ntawm tes thib 98%, huv sijhawm 99.5% ~ 99.9%. Hauv kev npaj ntawm Bromoform, tam sim no ua tau zoo tam sim no yog 92.5%, platinum yog 87%, thiab graphite yog {}}%. Nyob rau hauv lub electrosynthesis ntawm iodine daim ntawv, PBO2 yog cov khoom siv anode zoo tshaj plaws, nrog kev ua tau zoo ntawm 90% thiab tsis saib xyuas kev poob siab.

3.2.2 isobutyric acid

Kev lag luam tsis huv, Isobutyric acid yog tsim los ntawm distilling Isobutanol tom qab oxidation nrog kmno4 hauv nruab nrab alkaline. Ntxiv nrog rau cov khoom siv rawn orobutanol, hais txog 3.2tkmno4, 1.6th2so4, {}. Tus nqi yog qhov siab thiab ze li ntawm 2tmno2 pov tseg cov khoom pov tseg yog tsim tawm, uas muaj kev ncaj ncees ib puag ncig. Kev siv cov hmoov txhuas ua cov tshuaj tiv thaiv dioxide kom tsis ncaj electro-oxidize isobutanol los tsim oobutyric acid txo cov pa phem ib puag ncig.

3.2.3 Kev Kho Kom Qhuav

Titanium-based PBO2 Electrodes tau siv los kho cov orgoats organic, thiab cov organic kub heev. Titanium raws li PBO2 electrode tau siv los ua kom dentrade 10mg / l methyl kob kua tshuaj. Cov txiaj ntsig tau pom tias qhov kev tshem tawm ntawm methylen txiv kab ntxwv tau ze li 100% thaum qhov ceev tam sim no yog 36Min, uas muaj 12min, uas muaj cov haujlwm hluav taws xob siab. Tus tshiab PBO2 electrode tau siv los kho nitrobenzene quav dej. Nws tau pom tias piv nrog cov graphite graphite electrodes, lub PBO2 electrode tau raug tshem tawm tus nqi. Tom qab 5 teev ntawm cov electrolysis, lub cod tshem tawm tus nqi yuav ncav cuag li 65%.

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