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In 1991, Gratzel et al[1] employed porous nanocrystalline TiO2 films as the photoanode, chelate of Ru as the sensitizer, and invented a new structure solar cells, dye-sensitized solar cells (DSSCs). 7.1% of photoelectric conversion efficiency was obtained at one sun (AM1.5, 100mW·cm-2).
Smits: Journal of Physical Chemistry B, vol. 110, p. 19191-19197, (2006) [4] H.

Moore Physical Chemistry, Praha, SNTL 1979 [2] URL: < http://database.iem.ac.ru/mincryst/> [3] VAVŘÍN, F Binders, Brno, SNTL 1987 (in Czech) [4] DUDA, W.H., Cement-data-book, Bauverlag GmbH - Wiesbaden and Berlin, ISBN 3-7625-0180-7, Berlin, 1976
Cracow, Poland, Institute of building materials and structures. 2007. p. 146 - 152.

There are different types of polymer nanofiber crossed together in the hybrid nanofiber membrane, where strong action due to different functional groups in different molecules occurred; after heat treatment some PEO nanofibers in the hybrid nanofiber membrane were melted, it can further enhance the combination at the crossing point and form the consolidated crossing structure.
Progress in Chemistry, 2009, 21(1): 210-216

Study on Supercapacity properties of manganese dioxide active material by the Cation Concentration Change on the Electrode Surface Jian Min Zhanga, Pan Wangb , Gao Peng Zhangc, Ya Wei Lid, Ting Caoe College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, China, 450001 azhjm@zzu.edu.cn, bpwang@qq.com, cgpzhang@qq.com, dlywclark@126.com, etcao@126.com Keywords: supercapacitor, Charge-discharge mechanism, Manganese dioxide Abstract.
Considering the tunnel structure of manganese dioxide, some researchers [7,8] proposed the capacitive charge storage mechanism of manganese dioxide in the K2SO4 solution expressed as: MnO2 +δK+ +δe- Û KδMnO2 (1) This process involves the reversible intercalation/detercalation of potassium ion and variation of manganese valence between Mn(IV) and Mn(III).

Research on Photochromic Compounds with Efficient Synthesis and Photochromic Properties of 1-(2-methyl-5-phenyl-3-thienyl)-2-[2-methyl-5-(4-pentylphenyl)-3-thienyl]perfluorocyclopentene Junjie Song and Gang Liu* Jiangxi Key Lab of Organic Chemistry, Jiangxi Science and Technology Normal University Nanchang 330013, China liugang0926@163.com Keywords: Phenyl; Diarylethene; Photochromism; Fluorescence Abstract.
The structures of diarylethenes 1a were confirmed by 1H NMR (400 MHz, CDCl3, TMS): δ 0.80-0.91 (m, 3H), 1.16-1.25 (m, 4H), 1.35-1.54 (m, 2H), 2.35-2.37 (t, 6H),2.54-2.67 (m, 2H) 7.01-7.18 (d, 2H), 7.21-7.24 (d, 1H), 7.26-7.43 (d, 2H), 7.46-7.52 (t, 2H), 7.71-7.74 (d, 4H) Scheme 2.

EIS Studies of Chalcopyrite Involving Iron(II) Ions Fabiana Antonia Arena Delfino1,a, Denise Bevilaqua1,b and Assis Vicente Benedetti1,c* 1São Paulo State University UNESP, Institute of Chemistry, Post Box 355, 14801-970, Araraquara, SP, Brazil afantoniaarena@gmail.com, bdenise@iq.unesp.br, cbenedeti@iq.unesp.br Keywords: chalcopyrite, redox potential, bioleaching, electrochemical impedance spectroscopy.
These phases also can be formed when a potential imposed to the system causes the reduction of chalcopyrite, which allows the extraction of iron from the crystalline structure, forming copper sulfides that are more susceptible to oxidative leaching.

Oxidation of three samples at 1500 °C for 30 min in air produced structures that consist of three layers: (1) surface silica-rich layer, (2) a SiC-depleted layer, and (3) un-reacted layer.
Vogel: Glass Chemistry (Springer-Verlag, NewTock, 1994) [8] A.

The synthesized Ti-6Al-4V powder has been shown to have Grade 5 chemistries.
Further evaluation of the microstructures reveal typical basket weave structures, commensurate with a beta process (Figure 2).

Journal Citation (to be inserted by the publisher) Copyright by Trans Tech Publications Positron Annihilation in Resonant States of the He2+ + e– + e + System Yukio TOYA 1,2 , Yasushi KINO1 and Hiroshi KUDO 1 1 Department of Chemistry, Tohoku University, Sendai 980-8578, Japan 2 Advanced Photon Research Center, JAERI, Kizu 619-0215, Japan Keywords: Resonant state, positron annihilation, positronic atom, few-body calculation.
The annihilation rate in au is given by 4�� 3 �� 4.89 ×10 6� for the singlet spin state of positron-electron system, and 16(� 2 9)� 4 � 9 � 4.39×10 9� for the triplet spin state, where �� 1 137 is the fine structure constant and 1 au ?

Reported that the Au NWs depends not on the pore diameter of the template，but on the electrodeposition conditions[7].The regular hexagonally of AAO template and the fine structure of the NWs are clearly visible in the high-magnification.
Materials Chemistry and Physics. 91 (2005) 417 [17] Jiewu Cui, Yucheng Wu.