ICCAS OpenIR
A new highly selective H-2 sensor based on TiO2/PtO-Pt dual-layer films
Du, XY; Wang, Y; Mu, YY; Gui, LL; Wang, P; Tang, YQ
2002-09-01
Source PublicationCHEMISTRY OF MATERIALS
ISSN0897-4756
Volume14Issue:9Pages:3953-3957
AbstractA new highly selective hydrogen sensor based on TiO2/PtO-Pt dual-layer films has been prepared. At 180-200 degreesC, the prepared nanostructured sensor exhibits an excellent selectivity and good sensitivity to H-2 in air but is immune to many other kinds of reductive gases such as CO, NH3, and CH4. The sensor can give a faithful response to 1% H-2 in air, while the limitation for detecting H-2 in nitrogen is less than 1000 ppm. Influences of operation temperature and humidity on the sensing performance of the sensor were also investigated. The mechanism of the present sensor was attributed to the partial reduction of Ti4+ to Ti3+ by hydrogen catalyzed by a thin film of surface-oxidized Pt nanoparticles.
DOI10.1021/cm0201293
Indexed BySCI
Language英语
WOS IDWOS:000178128900048
PublisherAMER CHEMICAL SOC
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Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/78836
Collection中国科学院化学研究所
Corresponding AuthorWang, Y
Affiliation1.Peking Univ, Coll Chem & Mol Engn, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100871, Peoples R China
2.Beijing Inst Chem Technol, Fac Sci, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Du, XY,Wang, Y,Mu, YY,et al. A new highly selective H-2 sensor based on TiO2/PtO-Pt dual-layer films[J]. CHEMISTRY OF MATERIALS,2002,14(9):3953-3957.
APA Du, XY,Wang, Y,Mu, YY,Gui, LL,Wang, P,&Tang, YQ.(2002).A new highly selective H-2 sensor based on TiO2/PtO-Pt dual-layer films.CHEMISTRY OF MATERIALS,14(9),3953-3957.
MLA Du, XY,et al."A new highly selective H-2 sensor based on TiO2/PtO-Pt dual-layer films".CHEMISTRY OF MATERIALS 14.9(2002):3953-3957.
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