| 有机体系中纳米TiO2 / ZrO2修饰电极的制备及电催化活性 |
| Electro-catalytic Activity and Preparation of Nano-crystalline ZrO2 / TiO2 Modified Electrode in Organic System |
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| 摘要: |
| 关键词: 乙二醇 纳米ZrO2 / TiO2电极 掺杂 电催化 |
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| Abstract: The complexes Ti(OCH2CH2O)2 and Zr(OCH2CH2O)2 were directly synthesized by using HOCH2CH2OH dissolution in 50 mL flask. The nano-ZrO2 / TiO2 powders were prepared by a direct sol-gel synthesis using the above solution and followed by drying at 400 ℃ for 2 h. The complexes were characterized by FTIR and 1H NMR. XRD and TEM were used to investigate the structure of nano-ZrO2 / TiO2. The results show that the complexes containing -OCH2CH2O- group could prevent the precursor from agglomeration and sintering during the hydrolysis and calcination process. The ZrO2 / TiO2 powders of 20～35 nm was thus obtained in a high purity. The highly active nano-ZrO2 / TiO2 modified electrode was prepared by using daubing and calcination. The electro-catalytic activities of this electrode in (COOH)2 were investigated. The discharge current of nano-ZrO2 / TiO2 electrode increased obviously. In preparative electrolysis under optimal conditions, the average yield and current efficiency for HOOC-CHO were 84.7% and 91.6 %, respectively. |
| Keywords: HOCH2CH2OH nano-ZrO2 / TiO2 electrode intermixing electro-catalysis |
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| 朱传高,王凤武.有机体系中纳米TiO2 / ZrO2修饰电极的制备及电催化活性[J].无机化学学报,2008,24(5):813-817. |
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