• 作者： Shieh, Deng-Tswen; Hwang, Bing-Joe
• 中文摘要： 本文主要探討在釕-鈦二元氧化物電極中引入二氧化錫成分,在1M H/sub 2/SO/sub 4/溶液中析氧,二氧化錫對釕-鈦二氧化物電極之電化學活性與電化學安定性的影響。三元氧化物電極的組成可以通式Ru/sub 0.2/Ti/sub 0.8-x/Sn /sub x/O/sub 2/表示,本研究改變錫含量(x),利用交流阻抗分析及循環伏安法量測電極在1M H/sub 2/SO/sub 4/溶液中析氧的電化學特性。電極的安定性以在1M H/sub 2/SO/sub 4/溶液中進行加速腐蝕測試來鑑定; 以SEM觀察電極經加速腐蝕測試前後表面形態的變化。結果發現,二氧化錫的加入增加電極的 q/sup */及C/sub dl/,並降低R/sub ct/,使釕-鈦二元氧化物電極的性能得以提高。三元氧化物電極中二氧化錫的含量愈高,其R/sub ct/愈大,但電極用於析氧的穩定性愈佳。
• 英文摘要： Introduction of SnO/sub 2/ into Ru-Ti binary-oxide electrodes was found in this study to improve their electrochemical stability and activity for oxygen evolution reaction in 1M H/sub 2/SO/sub 4/ solution. The electrochemical characteristics of ternary-oxide electrodes with a general formula Ru/sub 0.2/Ti/sub 0.8-x/Sn/sub x/ O/sub 2/ for oxygen evolution from 1M H/sub 2/SO/sub 4/ solution were examined as a function of x by CV and AC impedance measurements. The stability of ternary-oxide electrodes was examined by accelerated corrosion test in 1M H/sub 2/SO/sub 4/ solution .The morphologies of ternary- oxide electrodes before and after accelerated corrosion test were investigated by SEM. Introducing SnO/sub 2/ into Ru-Ti binary-oxide electrodes would improve the performance of electrodes by increasing q/sup */ and C/sub dl/ and decreasing R/sub ct/. For the greater the content of SnO/sub 2/ in ternary-oxide electrodes, the larger the R/sub ct/ and the better the stability for oxygen evolution would occur.
• 中文關鍵字： 穩定性; 形態; 電化學活性; 氧; 三元氧化物電極; 阻抗
• 英文關鍵字： Stability; Morphology; Electrochemical Activity; Oxygen; Ternary-Oxide Electrode; Impedance