TiO2 nanoparticles functionalized by Pd nanoparticles for gas-sensing application with enhanced butane response performances

Abstract Pd functionalized TiO2 nanoparticles were synthesized by a facile hydrothermal method. The structure, morphology, surface chemical states and surface area were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and N2 ad...

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Autores principales:	Nan Chen, Dongyang Deng, Yuxiu Li, Xu Liu, Xinxin Xing, Xuechun Xiao, Yude Wang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f9a88c289eef425aba359f07a71a5b58
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spelling	oai:doaj.org-article:f9a88c289eef425aba359f07a71a5b582021-12-02T11:40:43ZTiO2 nanoparticles functionalized by Pd nanoparticles for gas-sensing application with enhanced butane response performances10.1038/s41598-017-08074-y2045-2322https://doaj.org/article/f9a88c289eef425aba359f07a71a5b582017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08074-yhttps://doaj.org/toc/2045-2322Abstract Pd functionalized TiO2 nanoparticles were synthesized by a facile hydrothermal method. The structure, morphology, surface chemical states and surface area were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and N2 adsorption-desorption isotherms, respectively. The as-synthesized pure and Pd functionalized TiO2 nanoparticles were used to fabricate indirect-heating gas sensor, and the gas-sensing characteristics towards butane were investigated. At the optimum temperature, the sensors possess good response, selectivity, response/recovery, repeatability as well as long-term stability. Especially for the high response, the response of 7.5 mol% Pd functionalized TiO2 nanoparticles based sensor reaches 33.93 towards 3000 ppm butane, which is about 9 times higher than that of pure TiO2 nanoparticles. The response and recovery time are 13 and 8 s, respectively. Those values demonstrate the potential of using as-synthesized Pd functionalized TiO2 nanoparticles as butane gas detection, particularly in the dynamic monitoring. Apart from these, a possible mechanism related to the enhanced sensing performance is also investigated.Nan ChenDongyang DengYuxiu LiXu LiuXinxin XingXuechun XiaoYude WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Nan Chen Dongyang Deng Yuxiu Li Xu Liu Xinxin Xing Xuechun Xiao Yude Wang TiO2 nanoparticles functionalized by Pd nanoparticles for gas-sensing application with enhanced butane response performances
description	Abstract Pd functionalized TiO2 nanoparticles were synthesized by a facile hydrothermal method. The structure, morphology, surface chemical states and surface area were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and N2 adsorption-desorption isotherms, respectively. The as-synthesized pure and Pd functionalized TiO2 nanoparticles were used to fabricate indirect-heating gas sensor, and the gas-sensing characteristics towards butane were investigated. At the optimum temperature, the sensors possess good response, selectivity, response/recovery, repeatability as well as long-term stability. Especially for the high response, the response of 7.5 mol% Pd functionalized TiO2 nanoparticles based sensor reaches 33.93 towards 3000 ppm butane, which is about 9 times higher than that of pure TiO2 nanoparticles. The response and recovery time are 13 and 8 s, respectively. Those values demonstrate the potential of using as-synthesized Pd functionalized TiO2 nanoparticles as butane gas detection, particularly in the dynamic monitoring. Apart from these, a possible mechanism related to the enhanced sensing performance is also investigated.
format	article
author	Nan Chen Dongyang Deng Yuxiu Li Xu Liu Xinxin Xing Xuechun Xiao Yude Wang
author_facet	Nan Chen Dongyang Deng Yuxiu Li Xu Liu Xinxin Xing Xuechun Xiao Yude Wang
author_sort	Nan Chen
title	TiO2 nanoparticles functionalized by Pd nanoparticles for gas-sensing application with enhanced butane response performances
title_short	TiO2 nanoparticles functionalized by Pd nanoparticles for gas-sensing application with enhanced butane response performances
title_full	TiO2 nanoparticles functionalized by Pd nanoparticles for gas-sensing application with enhanced butane response performances
title_fullStr	TiO2 nanoparticles functionalized by Pd nanoparticles for gas-sensing application with enhanced butane response performances
title_full_unstemmed	TiO2 nanoparticles functionalized by Pd nanoparticles for gas-sensing application with enhanced butane response performances
title_sort	tio2 nanoparticles functionalized by pd nanoparticles for gas-sensing application with enhanced butane response performances
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/f9a88c289eef425aba359f07a71a5b58
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TiO2 nanoparticles functionalized by Pd nanoparticles for gas-sensing application with enhanced butane response performances

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