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Hydrothermal Synthesis and Photocatalytic Properties of TiO2/SnS2 Nanocomposite Jing Li1,a,*, Wei Sun1,b, Weimin Dai2,c and Yongcai Zhang2,d 1School of Chemistry and Chemical Engineering, Xuzhou Institute of Technology, Xuzhou 221111, China 2School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China alijing_xzit@126.com, bchemistry_xzit@163.com, cwmdai_yzu@126.com, dzhangyc@yzu.edu.cn Keywords: Nanocomposites; Nanomaterials; Photocatalysis; Powder technology.
The structure, composition and optical property of the as-synthesized nanocomposite were characterized by X-ray diffraction, energy dispersive X-ray spectroscopy, transmission electron microscopy and UV-vis diffuse reflectance spectra, and its photocatalytic property was tested in the reduction of aqueous Cr6+ under visible-light (λ > 420 nm) irradiation.

A reference for the further design calculations of reinforced concrete arch plate structure is provided as well.
Jónsson, in: Theoretical Methods in Condencsed Phase Chemistry, edited by S.D.
Schwartz, volume 5 of Progress in Theoretical Chemistry and Physics, chapter, 10, Kluwer Academic Publishers (2000). ].
So only when the deformation is too large , are the geometry nonlinear problems of structure considered .
In structure analysis, boundary conditions change can also produce nonlinear problems.

Synthesis and Characterizations of MCM-41 Silica with Thick Pore Wall Qiong-Wei Hou1,a En-Hui Yuan1,b Jin-Gang Jiang1,c and Kun Zhang1,d* 1Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663, Zhongshan North Road, 200062, Shanghai, China amint1111@126.com, byeh1988dihua@126.com, cjgjiang@ chem.ecnu.edu.cn,d*kzhang@chem.ecnu.edu.cn Keywords: MCM-41, surfactant template, hydrothermal synthesis, thick pore wall, formation mechanism, tetramethylammonium，tosylate anions.
Nano-structured mesoporous silica with highly ordered 2D hexagonal topology has been synthesized using novel surfactant cetyltrimethylammonium tosylate (CTATos) as template via directly hydrothermal treatment at high temperature of 175 oC and varied crystallization time.
The patterns of all samples exhibit typical diffraction peaks indexed as (100), (110), (200), and (210) corresponding to the hexagonal structured MCM-41 silica. [6,7] It is noted that the sample synthesized at 175oC for 72 h only exhibited one diffraction peak of (100), indicating the poor structure ordering.
To our best knowledge, this is the first MCM-41 silica with highly ordered structure that can be synthesized at such high crystallization temperature 175 oC for 46 h using commercial surfactant as templates.
Table 1 Pore structure data of mesoporous silicas synthesized at varied crystallization time.

PtRh@Pt5/C Catalyst Preparation for Methanol Electrooxidation Li Fang1, a, Xiaoxiao Guo1, b, Yuepeng Liu1, c, Xiaoping Huang1, d and Surin Saipanya2, e 1School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, Shanxi, 030006, China 2Department of Chemistry and Materials Science Research Center, Faculty of Science, Chiang Mai University, 50200, Thailand afangli@sxu.edu.cn, b200822903004@mail.sxu.cn, c200822903010@mail.sxu.cn, d200922903001@mail.sxu.cn, esaipanya@chiangmai.ac.th Keywords: PtRh@Pt/C, bimetallic catalyst, cyclic voltammetry, methanol electrooxidation Abstract: Bimetallic catalysts PtRh@Pt5/C with different deposit structures were prepared by force deposition followed calcination at 400oC and characterized by cyclic voltammetry (CV) combined with XRD.
The surfaces of PtRh@Pt5/C derived from sandwich-like deposit structure was composed of crystallites and amorphous of PtRh alloys, showing exceptional catalytic activity in methanol oxidation with peak potential shifting 0.03V negatively and 90% increase in current density.
Introduction Direct methanol fuel cell (DMFC) has attracted much attention due to numerous advantages, such as compact structure, light weight, rich resources and environmental friendliness.
However, the anode catalyst, normally platinum, is easily poisoned by COads resulting in reduction of cell efficiency. [1, 2] Previous studies stated that bimetallic catalysts PtM (M is an oxygenophilic precious metal or a transition metal) could accelerate the oxidation of Pt–CO and enhance the resistance of COads on Pt surface.[3] PtRu is one of the well accepted bimetallic anodic catalysts in DMFC, nevertheless, the leaching of Ru during the reaction and cathode pollution remain challenging problems. [4-6] Recently, PtRh has raised attention since both Pt and Rh are of fcc structure comprising similar atomic radii and vaporization enthalpies, showing very good electrocatalytic performance. [7-12] Gómez et al. studied the oxidation of the saturated adlayer of CO on Rh/Pt(110), Rh/Pt(100), Pd/Pt(110) and Pd/Pt(100) surfaces by CV and FTIRS. [9, 10] It was found that Rh and Pd multilayers were easily formed on those Pt single crystal surfaces with high repeatability and stability over a
Conclusion PtRh@Pt5/C with different deposit structure was prepared by force deposit method followed calcination at 400 oC.

The knowledge of the strength vs. time law is of importance when a structure is subjected to a certain type of loading at a later age.
As a starting point, after recalling the chemistry of alkali-based geopolymers preparation, the results of compressive tests have been reported as a function of PEG fraction.
Steinerova, Mechanical properties of geopolymer mortars in relation to their porous structure, Ceramics-Silikaty 55 (2011) 362-372
Chan, Solid-state NMR study of geopolymer prepared by sol-gel chemistry, Journal of Solid State Chemistry 183 (2010) 3017-3022
Deja, Spectroscopic studies of alkaline activated slag geopolymers, Journal of Molecular Structure 924-926 (2009) 434-441.

The changes in structure and morphology can also affect the optical properties of the films.
Seshadri, Synthesis and corrosion of functionally gradient TiO2 and hydroxyapatite coatings on Ti–6Al–4V, Materials Chemistry and Physics, 106 (2007) 406-411
Pauporté, Charge Transport and Recombination in TiO2 Brookite-Based Photoelectrodes, The Journal of Physical Chemistry C, 118 (2014) 23459-23467
Gao, The Stability, Electronic Structure, and Optical Property of TiO2 Polymorphs, The Journal of Physical Chemistry C, 118 (2014) 11385-11396
Schmidt, The electronic structure and optical response of rutile, anatase and brookite TiO2, Journal of Physics: Condensed Matter, 24 (2012) 195503

The chemical structure of the product was identified by Fourier Transform Infrared Spectroscopy (FTIR).
Results and discussion Fig. 1 FTIR spectra of the product and cinnamon oil Chemical structure of the product.
Its chemical structure was identified by FTIR.
Chemistry and Industry of Forest Products, Vol. 7 (1987), No. 3, p.29-36
[8] H.Gao: Organic Chemistry (Higher Education Press, China 2006)

Thermal Cycling Behavior of Lanthanum-Cerium Oxide Thermal Barrier Coatings Prepared by Air Plasma Spraying Wen Ma 1, Yue Ma 1, Shengkai Gong1, Huibin Xu1* and Xueqiang Cao2 1 Department of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, No.37 Xueyuan Road, Haidian District, Beijing 100083, China 2 Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China Keywords: Thermal barrier coating; thermal cyclic oxidation; plasma spraying; lanthanum-cerium oxide Abstract.
The structures of the coatings were characterized by XRD and SEM and the deviation of the compo- sition from the powder was determined by EDS analysis.
Crystal structure was analyzed by XRD.
The coatings structure and composition were investigated by SEM and EDS, respectively.

Graphene oxide nanoplate-MnO2 composites for supercapacitors Jiawei Deng 1, Huan Pang a1*, Shaomei Wang1, Jiangshan Zhang1 1 Key Laboratory for Clearer Energy and Functional Materials of Henan Province, College of Chemistry and Chemical Engineering Department, Anyang Normal University, Anyang, 455000 Henan, P.R.
Introduction Graphene materials have emerged as a unique class of carbon based nanoscale building blocks with substantial potential for energy conversion and storage devices thanks to an array of their exceptional characteristics including superior electronic and mechanical properties, good electrochemical stability, and large specific surface area.[1] Recently, they have been explored as promising electrode materials in a variety of energy applications such as photovoltaics, batteries, and supercapacitors.[2-5] In fact, graphene may be considered as a promising candidate for capacitive electrodes since it can provide a good platform for the fast transport of hydrate ions to achieve high double-layer capacitance in aqueous electrolytes.[6] With this in mind, graphene-MnO2 nanocomposites synthesized by different methods have been reported.[7-8] In the present work, we demonstrate a novel structure based on graphene-MnO2 nanocomposites by a very simple wet chemistry approach at the room
Graphene oxide were efficiently exfoliated to form separated thin sheets and wrinkled to form porous structures as shown in Figure. 1a.

A Novel unsymmetrical Diarylethene Material Bearing double thiophene ring Shuhong Jing, Congbin Fan, Shouzhi Pu* Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, P.
The structure of 1a was characterized by 1H NMR.
The structure of 1a was characterized by NMR. 1H NMR (400 MHz, CDCl3, ppm): δ 1.94(s, 3H, -CH3), 1.99 (s, 3H, -CH3), 7.17(d, 1H, thiophene-H), 7.27(d, 1H, thiophene-H),7.37 (s, 3H, thiophene-H), 7.50 (t, 1H, benzene-H), 7.57(t, 1H, benzene-H),7.81 (d, 2H, benzene-H),8.04 (s, 1H, benzene-H),10.06 (s, 1H, CHO-H).
(Royal Society of Chemistry, London 2003)