| 冯玉杰,沈宏,崔玉虹,刘峻峰.钛基二氧化铅电催化电极的制备及电催化性能研究[J].分子催化,2002,(3):181-186 |
| 钛基二氧化铅电催化电极的制备及电催化性能研究 |
| Preparation and Evaluation on the Electro-catalytic Characteristics of Ti-base Lead Dioxide Electrode |
| 修订日期：2002-01-24 |
| DOI： |
| 中文关键词: 钛基二氧化铅 电催化电极 电催化性能 电催化氧化 电沉积 苯酚 有机污染物 治理 |
| 英文关键词:PbO-2 electrode of Ti base metal,Electro-catalytic oxidation,Electro-deposition,Phenol |
| 基金项目:哈尔滨工业大学校基金 ( HIT.2 0 0 0 .2 8)，哈尔滨市学科后备带头人基金 ( 0 171180 16 )资助课题 |
| 冯玉杰 沈宏 崔玉虹 刘峻峰 |
哈尔滨工业大学环境科学与工程系 黑龙江哈尔滨150001
(冯玉杰，沈宏，崔玉虹)
，哈尔滨工业大学环境科学与工程系 黑龙江哈尔滨150001(刘峻峰)
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| 中文摘要: |
| 以电沉积法制备了钛基PbO2电极，优化并确定了电极的制备工艺，以苯酚为目标有机物，考察了电极的电催化氧化性能，研究结果表明，该电极的电催化性能优于传统的DSA钛基RuO2电极。采用该电极，在10Ma/cm^2电流密度下通过0.72Ah电量后，可使100Ml、COD浓度为270mg/L的苯酚溶液中的苯酚完全分解，COD去除率为67.4%，单位电量COD降解量为0.254mgCOD/Ah，且电流效率随电流密度的增加而减小，初步研究了苯酚的电催化氧化机理，提出了苯酚的电催化氧化可能是由苯酚的直接电化学氧化为苯醌及苯醌的间接电化学氧化有机酸两部分组成。 |
| 英文摘要: |
| Lead dioxide electrode on Ti substrates was produced by electro-deposition in acid solution. Taking phenol as model substrate, the electro-catalytic characteristics of prepared anodes were investigated. Results showed that the phenol degradation was more efficiently carried out on PbO-2 anode than that on traditional DSA electrode of RuO-2 on Ti base metal. Phenol with a concentration of 270 mg/L and a volume of 100 mL was disappeared after charging electrical power of 0.96 Ah under a current density of 10 mA/cm+2. And it is also found that the current efficiency was decreased as current density increasing. At present study, a pathway of phenol degradation was proposed, which should be composed of benzoquinone formation by direct oxidation and benzoqiunone degradation to oxylic acids by indirect oxydaton. |
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