電解二氧化錳復(fù)合涂層修飾鈦基陽極的制備與性能
發(fā)布時(shí)間:2018-07-12 11:01
本文選題:鈦基陽極 + 復(fù)合涂層。 參考:《中國表面工程》2017年02期
【摘要】:在電解二氧化錳體系中,使用的陽極板通常具有易變型,電流密度低,電耗高等缺點(diǎn)。為了解決這些問題,文中選用工業(yè)純鈦?zhàn)鳛榛w,二氧化錳和二氧化錫作為復(fù)合活性涂層,采用簡易的熱分解方法制備出鈦基復(fù)合涂層陽極。通過SEM測試涂層表面形貌,發(fā)現(xiàn)該陽極的涂層致密、呈較平整的層狀。采用循環(huán)伏安曲線測試并計(jì)算積分面積和極化曲線對涂層配方進(jìn)行研究,發(fā)現(xiàn)燒結(jié)溫度為450℃,錫/錳比為6∶4時(shí)的陽極性能最優(yōu)。與鉛陽極和鉛銀合金陽極對比,用該復(fù)合涂層陽極電解得到的二氧化錳純度更高,但其槽壓比其它陽極低了約0.2 V左右,電流效率得到了提高,從而節(jié)約了電解過程中的能耗。因此,該復(fù)合涂層陽極適合做大型電極的陽極板。
[Abstract]:In electrolytic manganese dioxide system, the anode plate usually has the disadvantages of easy variation, low current density and high electricity consumption. In order to solve these problems, the titanium based composite coating anode was prepared by a simple thermal decomposition method with manganese dioxide and tin dioxide as composite active coatings. The surface morphology of the coating was measured by SEM, and it was found that the coating of the anode was compact and smooth. The formula of the coating was studied by measuring the cyclic voltammetry curve and calculating the integral area and polarization curve. It was found that the anode performance was the best when sintering temperature was 450 鈩,
本文編號:2116942
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