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[2] Nallamala Kiran, Journal of Molecular Structure 1065-1066 (2014) 93
Jayasankar., Journal of Molecular Structure 1036 (2013) 42
[7] Vengala Rao Bandi, Bhaskar Kumar Grandhe, Kiwan Jang, e t al., Materials Chemistry and Physics 140 (2013) 453

Preparation and Photocatalytic Activity of Silver Doped TiO2 Nanotubes Ying-cao Xu1,2,a and Hong You1,b 1 State Key Laboratory of Urban Water Resource and Environment, School of municipal & environmental engineering, Harbin Institute of Technology, Harbin 150090, China 2 Applied chemistry department, School of science, Northeast Agriculture University, Harbin, 150030, China axuyingcao@aliyun.com, b Professor of Environmental Science and Engineering, Dean of School of Marine Science and Technology, Harbin Institute of Technology Keywords: TiO2 Nanotube array, Photocatalyst, Silver nanoparticles doped.
Introduction TiO2 has been widely applied in light-catalyst,gas sensitive sensor[1], photoelectric material[2],and dye-sensitized solar cell[3].As the people increasing focus on environmental issues,TiO2 photocatalytic degradation of waste water and harmful gas have gradually become research hotspot[4].So far, the preparation methods of nanotubes have template method[5], hydrothermal method[6], high temperature gas-solid reaction method and anodic oxidation method[7], of which anodic oxidation method is simple, low cost, easy to realize industrialization and obtain the large area nanotube array structure.
Effects of sulfur doping on structure phase transformation and visible-light photocatalytic activity of nano-TiO2[J].

High-rate Charge-discharge Performances of ββββ-FeOOH-carbon composite electrodes Hideyuki Morimoto 1 , Kazuhiko Takeno 2 , Yuuki Uozumi 1 , Ken-ichi Sugimoto 1 , and Shin-ichi Tobishima 1 1 Department of Chemistry, Faculty of Engineering, Gunma University,1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan 2 NTT DoCoMo, Inc., 11-1, Nagatacho 2-chome, Chiyoda-Ku, Tokyo, 100-6150, Japan Keywords: β-FeOOH, fine particles, carbon, composite electrode, high-rate charge-discharge ABSTRACT Composite electrode material of crystalline β-FeOOH and carbon was prepared by hydrolyzing of FeCl3 (aq.) in which carbon powder with various specific surface areas was dispersed.
Amine has reported that the β-FeOOH material with (2 x 2) tunnel structure which is inexpensive and harmless material has worked as a positive electrode material for lithium secondary batteries and exhibited a capacity of 275 mAh g -1 [5].
X-ray diffraction measurement, scanning electron microscope (SEM) observation, and thermogravimetric (TG) analysis have been carried out to examine crystalline structure, morphology, and a content of β-FeOOH, respectively.

Armii Krajowej 19, 42-201 Czestochowa, Poland 2Czestochowa University of Technology, Faculty of Production Engineering and Materials Technology, Department of Chemistry, Al.
Defects favourable to the formation of chemical groups, including the carboxyl groups, are formed in the structure during the nanotubes cleaning.
The structure of composites after corrosive investigations: a) 0% CNT, b) 1% CNT c) 3% CNT, d) 5% CNT Fig. 3.

Figure 1b shows the TEM image for CNPs with a size between 10 and 50 nm, which is much bigger than other reports [20-21], and Figure 1c presents the HRTEM image and its corresponging a fast Fourier transform (FFT) image (Figure 1d) about their detailed structure, it is clearly seen that crystal graphitic structure of carbon nanoparticles is formed.
Chen, Chemistry A Europnal Journal, 20 (2014) 2254-2263

As solid adsorbents, activated carbon and mesoporous material SBA-15 are commonly used to adsorb CO2 because of their large pore structure and excellent surface chemical adsorption properties.
Besides, amine load will block microporous structure and the effect of chemical adsorption may be more prominent during heating up to a certain extent (70~90 °C) [6-9].
Pan: Journal of Fuel Chemistry and Technology, Vol. 28 (2013), p. 102-105 (in Chinese)

To improve the bone bonding ability of magnesium alloys, many attempts have been made to modify the structure, composition, and chemistry of magnesium alloys[2,4,10].
It can be seen that all the coatings show typically porous structure, but they are slightly different in pore size and uniformity.

Huczko 3 1 Faculty of Physics, Warsaw University of Technology, 00-661 Warszawa, Koszykowa 75, Poland 2 Institut d'Electronique de Microélectronique et de Nanotechnologie, Cité Scientifique - Avenue Poincaré, BP 69, 59652 Villeneuve d'Ascq Cedex, France 3 Faculty of Chemistry, University of Warsaw, 02-093 Warszawa, Pasteura 1, Poland Keywords: multiwall carbon nanotubes, Raman spectroscopy, AFM, Abstract.
The combination of Raman spectroscopy and AFM for characterization of MWNT gives a new wider approach to the structure and quality of characterization..
The position and intensity of Raman peaks are in good agreement with theoretical calculations for single walled nanotubes, showing that the vibration structure of MWCNT is similar to single walled nanotubes [4].

If the water inside the catalyst totally freezes into ice before the chemistry reaction can produce enough heat to warm up the membrane and catalyst over freezing point, the ice will cover the surface of the catalyst layers and the reaction will stop and at last lead to failure of cold start.
Hence, we can optimum design the structure and the properties of the PEMFC stack to achieve a better performances in cold start.
Fig.1-Two dimension structure of fluid field Table 1-Model dimension height (mm) length (mm) mesh bipolar layer 0.8 70 500 flow channel 0.8 70 500 gas diffusion channel 0.15 70 150 catalyst layer 0.15 70 150 membrane 0.3 70 300 residual water 0.1 40 96 cell 4.1 70 2900 stack 132.8 70 79070 Boundary condition and source term.

Jean1, e 1 Department of Chemistry, University of Missouri-Kansas City, Kansas City, Missouri, 64110, USA 2 Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, USA 3Materials and Construction Research Division, National Institute of Standards and Technology, Gaithersburg, MD 20899 a chenho@umkc.edu, bleelj@chbmeng.ohio-state.edu, cyang.1119@osu.edu, d xiaohong.gu@nist.gov, e jeany@umkc.edu Keywords: Positron, nanocomposite, glass transition temperature, polystyrene, carbon nanofiber Abstract.
When a bonding is formed from a polymer to CNF, there will be space limitation from the CNF particle to form a close-packed polymer-polymer structure like free volume in neat polymer.
Those open spaces as the relatively rigid structure between CNF/PS composites are larger than the free volume in the PS matrix.