نتایج جستجو برای: h moo3

تعداد نتایج: 531870  

Journal: :Nanoscale 2014
Mohammed Aziz Ibrahem Feng-Yu Wu Desalegn Alemu Mengistie Chia-Seng Chang Lain-Jong Li Chih Wei Chu

In this study we prepared molybdenum trioxide (MoO3) nanorods having average lengths of 0.5-1.5 μm and widths of approximately 100-200 nm through a one-step mechanical break-down process involving favorable fracturing along the crystal direction. We controlled the dimensions of the as-prepared nanorods by applying various imposing times (15-90 min). The nanorods prepared over a reaction time of...

2003
Tao Li Soofin Cheng Jyh-Fu Lee Ling-Yun Jang

Molybdenum and zirconium mixed oxides were supported on siliceous MCM-41 mesoporous material. The resultant materials were characterized with various techniques such as X-ray diffraction (XRD), nitrogen adsorption, Transmission electron microscopy (TEM), XANES, NH3-TPD, and Diffuse reflectance infrared Fourier transform spectra (DRIFTS) of pyridine. It was found that the well-ordered channeling...

2004
Jason D. Pless Billy B. Bardin Hack-Sung Kim Donggeun Ko Matthew T. Smith Robin R. Hammond Peter C. Stair Kenneth R. Poeppelmeier

Fifteen distinct MgO–V2O5, MgO–MoO3, MgO–V2O5–MoO3, and V2O5–MoO3 compositions were prepared using sol–gel chemistry and their selectivities and conversions for propane oxidative dehydrogenation (ODH) to propylene were measured. The vanadates were more active than the molybdates at lower temperatures; however, the molybdates exhibited higher selectivities at similar conversions. An increase in ...

Background & Objective:  Molybdenum trioxide nanoparticles (MoO3 NPs) have widespread applications in industries. However, the toxic and non-toxic effects of MoO3 NPs have not been fully investigated yet. In this study, effects of MoO3 NPs on ovary function of female rats were studied.  Materials & Methods:  In this study, 21 female rats were randomly divided into three groups (n=7): the first...

Journal: :ACS nano 2014
Mark T Edmonds Jack T Hellerstedt Anton Tadich Alex Schenk Kane Michael O'Donnell Jacob Tosado Nicholas P Butch Paul Syers Johnpierre Paglione Michael S Fuhrer

We perform high-resolution photoelectron spectroscopy on in situ cleaved topological insulator Bi2Se3 single crystals and in situ transport measurements on Bi2Se3 films grown by molecular beam epitaxy. We demonstrate efficient electron depletion of Bi2Se3 via vacuum deposition of molecular MoO3, lowering the surface Fermi energy to within ∼100 meV of the Dirac point, well into the topological r...

2014
Zhang Zhang Ruoyan Yang Yanshan Gao Yufei Zhao Junyang Wang Liang Huang Jiang Guo Tuantuan Zhou Peng Lu Zhanhu Guo Qiang Wang

We report a novel hybrid material Na2Mo4O13/α-MoO3 as highly efficient catalytic wet air oxidation (CWAO) catalyst, which showed the highest ever activity at room temperature and atmosphere pressure for the degradation of cationic red GTL. SEM and TEM analyses indicated that this hybrid catalyst has bamboo-shaped nanofiber morphology. In view of practical applications, the influence of some key...

2012
Pasinee Siriprapa Anucha Watcharapasorn Sukanda Jiansirisomboon

In this work, the fabrication and investigation of substituting higher-valence Mo6+ for Ti4+ ion on the B-site of La3+-doped Bi4Ti3O12 [BLT] structure to form Bi3.25La0.75(Ti1-xMox)3O12 [BLTM] (when x = 0, 0.01, 0.03, 0.05 0.07, 0.09, and 0.10) ceramics were carried out. X-ray diffraction patterns of BLTM ceramics indicated an orthorhombic structure with lattice distortion, especially with a hi...

Journal: :Displays 2012
Linsen Li Min Guan Guohua Cao Yiyang Li Yiping Zeng

0141-9382/$ see front matter 2011 Elsevier B.V. A doi:10.1016/j.displa.2011.10.002 ⇑ Corresponding author. Tel.: +86 10 82304101. E-mail address: [email protected] (M. Guan). Effects of doping molybdenum oxide (MoO3) in copper phthalocyanine (CuPc) as hole injection layer in OLEDs are studied. A green OLED with structure of ITO/MoO3-doped CuPc/NPB/10-(2-benzothiazolyl)2,3,6,7-tetrahydro-1,1,7,...

2013
Soo Chool Lee Seong Yeol Kim Byung Wook Hwang Suk Yong Jung Dhanusuraman Ragupathy In Sung Son Duk Dong Lee Jae Chang Kim

The effects of the SnO2 pore size and metal oxide promoters on the sensing properties of SnO2-based thick film gas sensors were investigated to improve the detection of very low H2S concentrations (<1 ppm). SnO2 sensors and SnO2-based thick-film gas sensors promoted with NiO, ZnO, MoO3, CuO or Fe2O3 were prepared, and their sensing properties were examined in a flow system. The SnO2 materials w...

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