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In addition to the problems associated with poor surface cleaning, low breakdown fields and high interface state densities are also caused by defects in epitaxial grown AlN such as columnar structures, threading dislocations, and low angle boundaries caused by SiC wafer flaws and contaminants.
The interface chemistry was characterized by Auger electron spectroscopy (AES), set to 5keV and 50nA emission for a detection angle of θ=55º.

Si is chosen as a candidate because Ni and Si have a small lattice mismatch of 0.4% [4], giving an advantage to the overall contact structure.
Journal Title and Volume Number (to be inserted by the publisher) Fig. 1 Curve fitted core level spectra during interface formation for (a) Si 2p (b) C 1s Fig. 2 Curve fitted core level spectra during sequential anneal for (a) Si 2P (b) C 1S Summary The interface chemistry and electrical properties of the Ni-Si-SiC contact have been studied.

It has been recommended that in welded structures subjected to corrosive environments the weldment should be cathodic with respect to the parent alloy [4] In this study, the microstructure of different positions along the TANDEM welding joint of 7A52 aluminum alloy plate has been investigated.
Materials Chemistry and Physics.

Introduction The reduction of environmental pollutants emitted from diesel engines is prescribed by the continuously strict environmental regulations．These mandates have activized the interest of chemistry researchers toward the development of cleaning diesel fuels.
From the data presented above, that were acquired through FT-IR, 1H NMR and GC-MS analyses, it is easily confirmed that the newly prepared oxygenate is methyl 1-methoxy-2-propyl carbonate with its chemical structure being CH3OCOOCH2CH(CH3)OCH3.

Breck: Zeolite Molecular Sieves: Structure, Chemistry, and Use (Wiley, New York, 1974)

Synthesis, Optoelectronic Properties of a Novel Photochromic Diarylethene Bearing Phenyl and Thienyl Group Duohua Jiang1, Weiping Wang2, Shouzhi Pu1,*, Weijun Liu1 1Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, P.R.China 2Institute of Fishery in Jiangxi Province, Nanchang 330039, P.R.China pushouzhi@tsinghua.org.cn Keywords: Diarylethene; Photochromism; Fluorescence switching; optical storage Abstract.
The structure of compound 1a was confirmed by 1H NMR. 1H NMR (CDCl3, 400 M Hz, TMS): δ1.89(s, 6H, -CH3); 3.78 (s, 3H, -OCH3), 6.68 (d, 1H, J = 6.4 Hz, thiophene-H), 6.99 (s, 1H, thiophene-H), 7.07 (t, 1H, J = 6.0 Hz phenyl -H), 7.23-7.27 (m, 5H, J = 7.6 Hz, phenyl -H).7.34(d, 1H, J = 7.2 Hz, phenyl -H),7.45(s, 1H, phenyl -H); 13C NMR (400 MHz, CDCl3): δ13.48, 27.94, 54.18, 110.24, 112.34, 117.13, 121.57, 122.23, 122.70, 124.57, 124.98, 126.80, 128.85,128.98, 133.54, 139.58, 134.87, 135.47, 141.01, 149.49, 158.9; IR (KBr, cm-1): 684，746，781，898，979，993，1055，1118，1139，1166，1193，1274，1336，1460，1674，2850，2924；Calcd for C28H22ClF6S2O (%): Calcd C, 57.19; H, 3.77.

Photochromism of New Hybrid Diarylethenes Bearing a Thiophene and Isoxazole Moiety Renjie Wang, Shouzhi Pu*, Shiqiang Cui Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, P.
The structure of compound diarylethene 1a was characterized by 1H NMR spectroscopy. 1H NMR (400 MHz, CDCl3, TMS): δ 2.13 (s, 3H, –CH3), 2.29 (s, 3H, –CH3), 2.19 (s, 3H, –CH3), 2.34 (s, 3H, –CH3), 2.36 (s, 3H, –CH3), 6.61 (s, 1H, thiophene–H).

An Efficient Visible Photocatalytic System Containing Eosin Y, Multiwalled Carbon Nanotubes and CuO for H2 Evolution from Water Jing Zhang1,a, Xueling Zhao1,b, Shi-Zhao Kang2,c, Pingping Yao1,d, Xiangqing Li2,e and Jin Mu1,f,* 1School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China 2Department of Chemical Engineering, Shanghai Institute of Technology, Shanghai 200235, China azhangjing-042@163.com, bcolor.123@126.com, ckangsz@sit.edu.cn, dyaoping@ecust.edu.cn, exqli@sit.edu.cn, fjinmu@ecust.edu.cn Key words: Visible Photocatalyst, Eosin Y, Multiwalled Carbon Nanotubes, CuO, H2 Evolution.
Their high aspect ratio and porous structure result in excellent performance in promoting electron transfer when used as an electrode in electrochemical reaction [1], implying that CNTs might be used as a good support material and efficient electron transfer channel in the photocatalytic system.

Magnesium alloy as the “21st Century Green Engineering Materials”, is one of the lightest metallic structure materials in current industrial applictions[1-4].
Journal of Physical Chemistry, 2008,24(10):1831-1838

Phanichphant2,d 1Program in Applied Chemistry, Faculty of Science, Maejo University, Chiang Mai, 50290, Thailand 2Materials Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand apusit@mju.ac.th, btipprapant@gmail.com, cpepmju@yahoo.com, dsphanichphant@yahoo.com Keywords: Adsorption, low temperature hydrothermal route, modified diatomite Abstract.
Diatomite, which consists of a wide variety of shape and sized diatoms, in a structure containing up to 80-90% voids, is a pale-coloured, soft, lightweight sedimentary rock composed principally of silica microfossils of aquatic unicellular algae.