期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 209, 期 -, 页码 180-185出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2014.11.106
关键词
Gas sensors; WO3; Decoration; Acetone
资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Republic of Korea [2010-0020163]
- National Research Foundation of Korea [2010-0020163] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The sensing properties of WO3 nanorods decorated with both Pd and Au nanoparticles toward acetone were examined. AuPd-decorated WO3 nanorods were prepared by immersing the WO3 nanorods in an acetone/( 25 mM) HAuCl4/(25 mM) PdCl2 solution followed by UV irradiation and annealing. The WO3 nanorods decorated with Au and Pd nanoparticles exhibited a far stronger response to acetone gas that increased with increasing acetone concentration than the monometal-decorated counterparts. XPS analysis showed that considerable alloy formation has occurred during the annealing process of the Au and Pd nanoparticle-decorated WO3 nanorods. Overall, Au and Pd particle-decoration had a synergistic effect on enhancing the sensitivity of the WO3 nanorod sensor to acetone gas. The underlying mechanism of the enhanced response of the Au/Pd bimetallic particle-decorated WO3 nanorods is also discussed. (C) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据