Low Temperature Preparation and Optical Hydrogen Response of Pd/Titania Composite Film
Low Temperature Preparation and Optical Hydrogen Response of Pd/Titania Composite Film
复制标题
Pd/二氧化钛复合薄膜的低温制备及光氢响应
DOI：
10.4028/www.scientific.net/kem.485.275
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
A. Matsuda
中科院分区：
文献类型：
--
作者：
Jun;R. Araki;Shohei Onimaru;Hiroyuki Oda;G. Kawamura;A. Matsuda
采用低温合成法在钠钙玻璃基底上制备负载钯催化剂的光催化二氧化钛涂层，用于光学氢气传感器。通过溶胶-凝胶旋涂工艺在玻璃基板上形成二氧化钛涂层，然后进行 55°C 热水处理。在热水处理后，通过在室温下使用紫外光照射的光沉积技术，将金属钯纳米颗粒沉积到二氧化钛涂层上，该二氧化钛涂层是在热水处理后添加聚乙二醇（PEG）和不含PEG而获得的。整个制造过程是在大气压下进行的。热水处理后添加 PEG 获得的 Pd 光沉积二氧化钛涂层比未添加 PEG 的涂层表现出更高的氢传感性能。
Photocatalytic titania coatings loaded with palladium catalyst were prepared onto soda-lime glass substrates by using a low temperature synthesis for application of optical hydrogen gas sensor. Titania coatings were formed on the glass substrate by a sol-gel spin-coating process followed by a hot water treatment at 55°C. Metallic palladium nanoparticles were deposited onto the titania coatings, which obtained with addition of poly(ethylene glycol) (PEG) and without PEG after the hot water treatment, by means of a photodeposition technique at room temperature using UV-light irradiation. The whole fabrication process was carried out under atmospheric pressure. The Pd-photodeposited titania coating obtained with addition of PEG after hot water treatment showed higher hydrogen sensing properties than that obtained without PEG.