| Pd掺杂TiO2纳米管阵列的制备及氢敏性能 |
| Pd Doped TiO2 Nanotube Arrays: Preparation and Hydrogen-Sensing Performance |
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| 摘要: 采用电化学阳极氧化的方法，以含F-的溶液为电解液，在金属钛基底表面生长出规则排列的TiO2纳米管阵列，并通过电化学沉积的方法对之进行金属Pd掺杂。利用XRD、SEM和TEM对样品进行分析表征，并测试了样品的氢敏性能。结果表明，用此种方法制备的Pd掺杂的TiO2纳米管阵列具有良好的氢气敏感性能，适当掺Pd的样品在较低温度(80 ℃)下对0.01 mL·L-1的H2具有良好的灵敏性(灵敏度S=14)。 |
| 关键词: TiO2纳米管阵列 电化学 Pd掺杂 氢气敏感 |
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| Abstract: Well ordered and uniform titanium dioxide nanotube arrays were fabricated on titanium substrate by electrochemical anodic oxidation in a solution containing F- ions. The samples were characterized by XRD, SEM and TEM. The hydrogen-sensing properties of the as-prepared samples were also investigated. The results show that the Pd-doped TiO2 nanotube arrays obtained by the above method have excellent hydrogen sensing properties under working temperature of 80 ℃ and low limit hydrogen concentration of 0.01 mL·L-1，and the sensitivity of the sample is 14. |
| Keywords: TiO2 nanotube arrays electrochemical anodic oxidation Pd dopant hydrogen-sensing |
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| 吕 怡,凌云汉,马 洁,任富建,许军娜.Pd掺杂TiO2纳米管阵列的制备及氢敏性能[J].无机化学学报,2010,26(4):627-632. |
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