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Hydrogen sensing properties of Pt-Au bimetallic nanoparticles loaded on ZnO nanorods
Fan, Faying1,2; Zhang, Jiajun3; Li, Jiao3; Zhang, Na3; Hong, RunRun3; Deng, Xiaochuan1,2; Tang, Pinggui3; Li, Dianqing3
2017-03-31
Source PublicationSENSORS AND ACTUATORS B-CHEMICAL
Volume241Pages:895-903
SubtypeArticle
AbstractThe mono-noble metal nanoparticles are often loaded onto the sensing materials to promote the gas sensing performance of the materils; however, there have been few reports concerning the effect of the multi-metallic nanoparticles on the sensing performance. It is reported that the multi-metallic nanoparticles shows different absorption and catalytic performance from their mono-metal analogues because of the geometric and electronic effect, so it is very necessary to investigate the gas sensing performance of the multi-metallic nanoparticles loaded materials. In this work, the Pt-Au alloying nanoparticles was prepared and supported on the ZnO nanorods, and this hybrid was used as the H-2 sensor for the first time. The sensing testing results indicate that the alloying nanoparticles loaded ZnO exhibits higher sensing response than the mono-metallic nanoparticles loaded ZnO. The Pt-Au bimetallic nanoparticles loaded ZnO shows high sensitivity to ppm-level of hydrogen even at room temperature, and the sensing response of (Pt-Au)-loaded ZnO to 250 ppm of H2 is 157, 47, and 9.6 times higher than that of pure ZnO, Pt-loaded ZnO, and Au-loaded ZnO, respectively. This superior performance of the (Pt-Au)-loaded ZnO to H2 is most probably due to the strong adsorption of H-2 onto the Pt-Au bimetallic nanoparticles caused by the geometric and electronic effects between the two metals. (C) 2016 Elsevier B.V. All rights reserved.
KeywordPtau Bimetallic Nanoparticles H-2 Gas Sensing
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS KeywordOXYGEN REDUCTION ELECTROCATALYSTS ; SNO2 QUANTUM DOTS ; LOW-TEMPERATURE ; PD ; CATALYST ; H-2 ; PERFORMANCE ; PLATINUM ; METHANOL ; SENSORS
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Electrochemistry ; Instruments & Instrumentation
WOS SubjectChemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation
WOS IDWOS:000393253700112
Citation statistics
Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6189
Collection青海盐湖研究所知识仓储
盐湖资源综合利用工程技术中心
Affiliation1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Peoples R China
2.Qinghai Engn & Technol Res Ctr Comprehens Utiliza, Xining 810008, Peoples R China
3.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Fan, Faying,Zhang, Jiajun,Li, Jiao,et al. Hydrogen sensing properties of Pt-Au bimetallic nanoparticles loaded on ZnO nanorods[J]. SENSORS AND ACTUATORS B-CHEMICAL,2017,241:895-903.
APA Fan, Faying.,Zhang, Jiajun.,Li, Jiao.,Zhang, Na.,Hong, RunRun.,...&Li, Dianqing.(2017).Hydrogen sensing properties of Pt-Au bimetallic nanoparticles loaded on ZnO nanorods.SENSORS AND ACTUATORS B-CHEMICAL,241,895-903.
MLA Fan, Faying,et al."Hydrogen sensing properties of Pt-Au bimetallic nanoparticles loaded on ZnO nanorods".SENSORS AND ACTUATORS B-CHEMICAL 241(2017):895-903.
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