نتایج جستجو برای: tungsten trioxide wo3

تعداد نتایج: 17157  

Journal: :Electronic materials 2022

This study aims to discuss the combined theoretical and experimental results of elastic properties tungsten trioxide films supported on Quartz (YX)/45°/10° resonator form surface acoustic wave (SAW) devices. The SAW systems with different thicknesses WO3 thin were imaged structurally characterized by X-ray diffraction, atomic force, transmission electron microscopy. deposited (100, 200, 300 nm ...

2013
Lin Liang Jiajia Zhang Yingying Zhou Junfeng Xie Xiaodong Zhang Meili Guan Bicai Pan Yi Xie

Ultrathin nanosheets are considered as one kind of the most promising candidates for the fabrication of flexible electrochromic devices (ECDs) due to their permeable channels, high specific surface areas, and good contact with the substrate. Herein, we first report the synthesis of large-area nanosheets of tungsten oxide dihydrate (WO3·2H2O) with a thickness of only about 1.4 nm, showing much h...

2014
Mohammad Izadyar Azam Jamsaz

Today's WO3-based gas sensors have received a lot of attention, because of important role as a sensitive layer for detection of the small quantities of  NO x . In this research, a theoretical study has been done on the sensing properties of different cyclic nanoclusters of (WO3) n   (n = 2-6) for NO x   (x = 1,2) gases. Based on the calculated adsorption energies by B3LYP and X3LYP functionals,...

In this study, a sol-gel peroxotungstic acid sol was employed to deposit tungsten oxide (WO3) films by the spin-coating technique. In view of smart window applications, electrochromic windows were then designed and fabricated using a thin tungsten oxide film. For this purpose, Glass/ FTO/ WO3/ electrolyte/ FTO/Glass could be of use due to its special structure that consists of an electrochromic...

Journal: :Nanoscale 2014
Tao Wang Jing Tang Xiaoli Fan Jianhua Zhou Hairong Xue Hu Guo Jianping He

Electrocatalysts for hydrogen oxidation and methanol oxidation are the heart of the proton exchange membrane fuel cell. In spite of tremendous efforts, developing low-cost anodic electrocatalysts with high catalytic activity and corrosion resistance is still a great challenge. Here, we report a nanocomposite consisting of oriented WO3 nanorods grown in ordered mesoporous carbon as a high-perfor...

2011
Zhihui Jiao Xiu Wang Jinmin Wang Lin Ke Hilmi Volkan Demir Tien Wei Koh Xiao Wei Sun

In recent years, nanostructured materials have attracted much attention due to their large surface area and size dependent properties, which offer great advantages in various applications. Tungsten trioxide (WO3), a well-known transition metal oxide, has evoked wide interest owing to its distinctive physical and chemical properties that make it suitable for extensive applications in electrochro...

2008
Mehmet Kozan Rahel Bogale Mahendra K. Sunkara Bogale M. K. Sunkara

The stability of tungsten trioxide (WO3) suspensions in various common polar solvents such as water, acetone, isopropanol (IPA), ethanol, 1methoxy-2-propanol (1M-2P) and N,N-dimethylformamide (DMF) was investigated. The morphology of WO3 aggregates formed by irregular nanoparticles (d * 40 nm, with 1 lm nominal diameter compact aggregates) and by nanowires of different types (uneven, single or ...

2017
Akbar I. Inamdar Jongmin Kim Yongcheol Jo Hyeonseok Woo Sangeun Cho Sambhaji M. Pawar Seongwoo Lee Jayavant L. Gunjakar Yuljae Cho Bo Hou Seung Nam Cha Jungwon Kwak Youngsin Park Hyungsang Kim Hyunsik Im

The dataset presented here is related to the research article entitled "Highly Efficient Electro-optically Tunable Smart-supercapacitors Using an Oxygen-excess Nanograin Tungsten Oxide Thin Film" (Akbar et al., 2017) [9] where we have presented a nanograin WO3 film as a bifunctional electrode for smart supercapacitor devices. In this article we provide additional information concerning nanograi...

2007
XP Wang BQ Yang HX Zhang PX Feng

Tungsten oxide (WO3) nanorods array prepared using chemical vapor deposition techniques was studied. The influence of oxygen gas concentration on the nanoscale tungsten oxide structure was observed; it was responsible for the stoichiometric and morphology variation from nanoscale particle to nanorods array. Experimental results also indicated that the deposition temperature was highly related t...

Journal: :Angewandte Chemie 2016
Yohei Uemura Daiki Kido Yuki Wakisaka Hiromitsu Uehara Tadashi Ohba Yasuhiro Niwa Shunsuke Nozawa Tokushi Sato Kohei Ichiyanagi Ryo Fukaya Shin-ichi Adachi Tetsuo Katayama Tadashi Togashi Sigeki Owada Kanade Ogawa Makina Yabashi Keisuke Hatada Satoru Takakusagi Toshihiko Yokoyama Bunsho Ohtani Kiyotaka Asakura

The dynamics of the local electronic and geometric structures of WO3 following photoexcitation were studied by femtosecond time-resolved X-ray absorption fine structure (XAFS) spectroscopy using an X-ray free electron laser (XFEL). We found that the electronic state was the first to change followed by the local structure, which was affected within 200 ps of photoexcitation.

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