Synthesis of Pd or Pt/titanate nanotube and its application to catalytic type hydrogen gas sensor
Synthesis of Pd or Pt/titanate nanotube and its application to catalytic type hydrogen gas sensor
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DOI：
10.1016/j.snb.2007.06.025
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发表时间：
2007-12-12
影响因子：
8.4
通讯作者：
Singh, Krishan C.
中科院分区：
文献类型：
--
作者：
Han, Chi-Hwan;Hong, Dae-Woong;Singh, Krishan C.
利用钯和铂/钛酸盐纳米管研制了一种催化型可燃气体传感器。采用水热法制备了Pd和Pt/钛酸盐纳米管催化剂。传感器是通过丝网印刷的催化材料和补偿材料上的氧化铝板与铂加热器。与传统的Pd和Pt催化剂相比，Pd和Pt/钛酸盐纳米管的传感器表现出更高的响应。这似乎是由于Pd和Pt催化剂在纳米级水平上均匀分散在钛酸盐纳米管上，并且氢在钛酸盐纳米管表面上的更好吸附促进了Pd和Pt催化剂对氢的氧化。平板型催化式可燃氢传感器是一种很好的氢气检测元件。(c)2007 Elsevier B. V.保留所有权利。
A catalytic combustible gas sensor has been developed by using Pd and Pt/titanate nanotubes. Pd and Pt/titanate nanotube catalysts were synthesized by a hydrothermal synthesis method. Sensors were fabricated by screen-printing of the catalytic material and a compensating material on an alumina plate with a platinum heater. The sensor with Pd and Pt/titanate nanotubes showed higher response than that with conventional I'd and Pt catalysts. This seems to be due to the evenly dispersed Pd and Pt catalysts on the titanate nanotubes at a nano-scale level, and the better adsorption of hydrogen on the titanate nanotube surface which facilitates the oxidation of hydrogen by the Pd and Pt catalysts. The present flat-type catalytic combustible hydrogen sensor is a good candidate for detection of hydrogen. (c) 2007 Elsevier B.V. All rights reserved.