Iridium-tantalum Coated Titanium Anode
Iridium-tantalum-coated titanium electrode yog cov khoom siv hluav taws xob zoo heev rau cov pa oxygen fab tawm ntawm cov xov xwm acidic. Cov khoom siv electrode uas tuaj yeem siv nyob rau hauv ib puag ncig no tsis tshua muaj nqi. Cov khoom no yog siv hauv cov organic electrolysis, xws li cysteine, glyoxylic acid, succinic acid, thiab lwm yam Nws tuaj yeem siv rau hauv qhov tsis ncaj oxidation ntawm Cr3 + Cr6+ electrolysis hauv cov organic electrolysis. Kev lim dej yog siv los oxidize cov organic thiab lom rau hauv dej, xws li CN -Conversion; Nws kuj tseem siv tau los ua kev pabcuam electrodes hauv kev lag luam electroplating, xws li kev pabcuam anodes rau Cr plating, ntu anodes rau electrolytic tooj liab, ntu anodes rau electrolytic zinc, ntu anodes rau kev tiv thaiv cathodic, thiab lwm yam. Nws tseem siv cov electrolysis thiab electrowinning. ntawm cobalt thiab nickel.
Cov khoom siv tshuaj lom neeg ntawm iridium yog qhov ruaj khov heev. Nws yog cov hlau tiv taus ntau tshaj plaws. Iridium muaj cov tshuaj lom neeg ruaj khov rau cov kua qaub thiab yog cov kua dej hauv cov kua qaub. Tsuas yog spongy iridium yuav maj mam yaj hauv kub aqua regia. Yog hais tias iridium yog nyob rau hauv lub xeev ntom, txawm tias rhaub aqua regia, Nws kuj tsis tuaj yeem kho cov kab iridium; nws yuav xeb los ntawm sodium hydroxide, potassium hydroxide thiab sodium dichromate tom qab me ntsis yaj. Qhov teeb meem feem ntau tsis tuaj yeem corrode iridium. Muaj tus qauv zoo rau kev sib txuas ua ke sib txuas. Lub teb tseem ceeb yog +2, +4, +6.
Kev siv khoom keeb kwm: Pure iridium yog siv tshwj xeeb hauv cov dav hlau dav hlau ntsaws, thiab feem ntau yog siv los ua cov khoom siv hluav taws xob, thermocouples, cov xov hluav taws xob tiv thaiv, thiab lwm yam. Pure iridium feem ntau yog siv hauv cov alloys. Txawm hais tias iridium tsuas yog siv ib leeg, nws tsis tshua muaj. Daim ntawv uas tshwm sim hauv daim ntawv ntawm cov hlau ntom hlau ib leeg yog feem ntau siv los ua ingot, crucible, lossis filament. Tus nqi siab ntawm kev ua cov iridium rau hauv kev ua qias neeg ua rau kev lag luam tus nqi ntawm cov xov hlau iridium zoo li ntau txog li 1,000 yuan rau ib gram. Yog li no, iridium feem ntau tshwm sim hauv daim ntawv ntawm alloys. Nws tsim cov alloy nrog platinum (10% Ir thiab 90% Pt). Vim tias cov coefficient me me ntawm kev nthuav dav, feem ntau nws siv los ua tus tseev tsim ntiaj teb cov qauv ntsuas kev ntsuas. Lub ntiaj teb thawj phaus tseem ua los ntawm platinum-iridium alloy.