Pt nanoparticles encapsulated in mesoporous tungsten oxide to enhance the repeatability of a FBG hydrogen sensor

被引：13
|
作者：
Yang, Shiwen [1 ]
Wang, Gaopeng [1 ]
Xiang, Feng [1 ]
Qin, Yuhuan [1 ]
Dai, Jixiang [1 ]
Yang, Minghong [1 ]
机构：
[1] Wuhan Univ Technol, Natl Engn Lab Fiber Opt Sensing Technol, Wuhan 430070, Hubei, Peoples R China
来源：
OPTICAL MATERIALS EXPRESS | 2018年 / 8卷 / 06期
基金：
中国国家自然科学基金;
关键词：
CATALYST; SBA-15; FILMS;
D O I：
10.1364/OME.8.001493
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Mesoporous WO3 is synthesized by using SBA-15 and KIT-6 silica as templates, and Pt nanoparticles are then incorporated into the mesochannels of mesoporous WO3. TEM and BET results demonstrate the existence of the pore structure. Hydrogen sensing tests show that the repeatability of the sensors based on mesoporous WO3 has been significantly improved by an order of magnitude. Based on XRD, TEM and Raman spectrum results, a model of Pt nanoparticles encapsulated into channels of mesoporous WO3 is proposed to explain the improved repeatability of mesoporous WO3. (c) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：1493 / 1504
页数：12
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