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Preparation of Activated Carbon from Walnut Shell Doped La and Ca Catalyst for Biodiesel Production from Waste Cooking Oil Abdulkreem ALSULTAN1,2,a*, Asikin MIJAN1,2,b, Taufiq YAP1,2,c 1Catalysis Science and Technology Research Centre; Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia 2Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia a*kreem.alsultan@yahoo.com , bckin_mijan@yahoo.com , ctaufiq@edu.upm.my Keywords: Walnut shell, Activated carbon, Lanthanum, Acid catalyst Abstract.
The figures showed an amorphous structure at around 25o, which typical for AC [13].
The AC amorphous structure pattern reduced drastically after impregnated with La and Ca solution.

The microstructure is continuously replaced by bainitic-type structures towards the centre of the component.
Summary Chemistry.
The presence of these structures corresponds to the insufficient height of the hardening temperature (not reaching the Ac1 solidus curve), which was mentioned earlier and proved that the hardening process took place directly from an unsuitable cementation temperature.

The uniform fibrous structure of PLGA fibers did not significantly change after the incorporation of CNTs and HNTs/CNTs, Compared with the diameter of PLGA(654±148 nm) nanofibers, the diameters of CNTs(3 wt%)/PLGA (660 ±168 nm) and DOX(3 wt%)/CNTs/PLGA (682±300 nm) composite fibers only have a slight increase.
Modulation of protein release from biodegradable core-shell structured fibers prepared by coaxial electrospinning.
Supramolecular Chemistry on Water-Soluble Carbon Nanotubes for Drug Loading and Delivery.

The value of adsorption can be judged on such parameters as the dispersion and mechanism of particle interaction, structure formation in suspensions.
To solve most sorption problems, adsorbents with a different porous structure are used, among which mineral porous substances occupy a basic position.
Makhno, State and prospects of development of methods for wastewater treatment of galvanic industries, Chemistry and Technology of Water. 11(5) (1989) 407-421

Homa 1 , Z. śurek 2 1 Institute of Inorganic Chemistry and Technology, Cracow University of Technology, Warszawska st. 24, 31-155 Cracow, Poland 1 martah@chemia.pk.edu.pl, 2zzurek@chemia.pk.edu.pl Keywords: sulphidation, alumina forming alloys, sulphide Abstract.
These results can be caused from thickness of research samples (0,06cm thick) and the scale structure.
Outer layers were platelets and needles structure and consist with mixture of Fe and Cr sulphides.

Adopting electronic arc discharge of the, the electrospark deposition can make the conducting material as electronic pole to deposit the metal alloy on the surface of workpiece, and then forming the sedimentary deposit of alloyed metal, which can improve the physical, chemistry and mechanical properties of the workpiece [5,8,12].
The elements distributing of the coating was examined by the energy dispersion spectrum made in America and the phase structure was determined using the type of BruxD8 X-ray diffraction made in Germany. 1.2 Sample preparation (1) the strength of the coating layer: figure 1 is the normal four corners sample, the total size of the right and left sample is 200mm, then the right and left samples were fixed together to deposit alloy several times on the butt seam, then both sides of the sample were rubbed out 0.1mm so that the thickness of the sedimentary deposit is 0.2mm
Stress is released by plastic deformation, and it will not helpful to form and expand the crack when heat stress increase enough great. 3.2 Components and phase structure analyzing of the coating Figure 5a is the analyses of the element distribution of the deposit using SEM.

However, both samples have irregular granules structures.
SEM images for 0.2CaO-MgO calcined at 650°C at magnification: (a) 500X, (b) 2000X and (c) 5000X The CaO-MgO sorbent are tested with XRD in order to identify the phase and also the crystal structure.
New Journal of Chemistry, 40(1) (2016), 231–237 [9] Lu, S., & Wu, S.

Recrystallization Behavior of Cu-20Ni-5Sn Alloy Ruiqing Liu1,2,a, Lijun Peng3,b and Jiansheng Yang3,c 1Engineering Institute of Jiangxi University Technology and Science, Ganzhou, Jiangxi, China, 34100 2National Research Center of Copper Metallurgy and Metal-working Engineering and Technology, Ganzhou, Jiangxi, China, 34100 3Materials and Chemistry Engineering Faculty, Jiangxi University of Science and Technology, Ganzhou, Jiangxi, China, 341000 a820caiwei@163.com, bpenglijun198677@163.com,c15879797352@163.com Keywords: Cu-20Ni-5Sn Alloy; Recrystallization Temperature; Microstructure; Grain Growth; Hardness Abstract.
There are very small amount of recrystallization structure near slipping bands after annealing at 500°C ×1h as figure 3(b) shown, correspondingly the hardness drops as figure 1 shown.
It can be seen in the figure 3(c) that the recrystallization structure of alloy is obviously after annealing at 560°C ×1h.

Fabrication and Characterization of Transparent P-Type Zno Films Obtained by in Situ Oxidation of Sputtering Zn3N2 :Al Jun Zhang1,2,a, Lexi Shao1,2,b, Wei Xie1,2,c and Changwei Zou1,2 1 Department of physics, Zhanjiang normal university, Zhanjiang 524048, China 2 Development Center for New Materials Engineering and Technology in Univesities of Guangdong, Research Center of Chemistry and Materials, Zhanjiang normal university, Zhanjiang 524048, China abuzman@tom.com, bshaolxmail@163.com, ccarlxw@163.com Keywords: p-Type ZnO Film; Zn3N2 :Al; RF Magnetron Sputtering; Photoluminescence.
The as-deposited Zn3N2 sample has a cubic structure with (321) and (440) planes.
Summary A new technique for preparing zinc oxide (ZnO) film, in situ oxidation of sputtering deposited Zn3N2:Al precursor, is presented and the investigation on the structure and optical and electrical properties were performed.

It is reported that Al-substituted Ni(OH)2 has the same structure as pure α-Ni(OH)2.
The structure and morphology of the as-synthesized Ni(OH)2 powders were analyzed by X-ray diffraction (XRD, Riguka, Cu Kα radiation) and scanning electron microscopy (SEM, SIRION).
Mcewen: J Physical Chemistry Vol. 75 (1971), p. 1782 [2] X.