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The Effect of Calcination Time on Crystallite Size of LiMn1.8Ni0.2O4 Cathode Materials MICHELLE Matius1,2,a, NORLIDA Kamarulzaman1,3, MOHD SUFRI Mastuli1,2, NOR SYAMILAH SYAMIMI Mohd Abdillih1,2 and KELIMAH Elong1,2,b* 1Centre for Nanomaterial Research, Institute of Science, Level 3 Block C, UniversitiTeknologi MARA, 40450 Shah Alam, Selangor, Malaysia 2School of Chemistry and Environment, Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia 3School of Physics and Materials, Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia amicmat28@hotmail.com, b*kelimah0907@salam.uitm.edu.my Keywords: LiMn2O4, Li-ion batteries, cathode material, calcination, crystallite size Abstract.
Partial substitution of Mn with transition metals such as Fe, Cu, Ga, Al, Ni, Ti, Si and so on, has been attempted by many researcher in order to enhance the stability of LiMn2O4 structure and suppress the Jahn-Teller distortion [5].
This means that the Ni+ ions have been successfully substituted in the LiMn2O4 structure.
The diffraction peaks are indexed to the cubic spinel-type structure with a space group Fd-3m.
Piraman, Electrochemical behavior of LiMn2-X-YTixFeYO4 as cathode material for Lithium ion batteries, Journal of Electroanalytical Chemistry. 720-721 (2014) 58-63

Silver Nanoparticles with Enhanced Fluorescence Effects on Fluorescein Derivative Chun Yang1,a, Fengyan Ge1,b, Jincai Li1,c, Zaisheng Cai1,d, Fangfang Qin1,e 1Key Laboratory of Science & Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, China ayangchun@mail.dhu.edu.cn, bfyge@dhu.edu.cn, clijincaidhu2010@mail.dhu.edu.cn, dzshcai@dhu.edu.cn,eqinfangfangdhu@163.com Keywords: Silver Nanoparticles, Absorption Spectra, Metal-enhanced Fluorescence, Fluorescein Derivative Abstract.
Fluorescein (FL) and 6-carboxyfluorescein (FAM) are very important fluorescent probes in the fields of chemistry and biochemistry.
Fig. 2 Structure of sodium citrate Fig. 3 Stabilized mechanism of sodium citrate Fig. 1(C) shows the effect of temperature on sliver synthesis process.
Fig. 5 MEF effects of FL and FAM Fig. 4 TEM image of silver nanoparticles at different silver concentrations Fig. 6 Differences on structure and fluorescence enhancement properties between FL and FAM To evaluate the capacity of nanoparticles for MEF on different dyes (FL and FAM), fluorescence enhancement factors are determined by fluorescence spectroscopy and the results are shown in Fig. 5.
Furthermore, FAM demonstrates more efficient enhancement than FL, which attributes to the number of anionic group in their corresponding structures.

The authors carried out experiments focusing on the porous structure of ceramics based on hydroxyapatite at a controlled porosity for drug release, as cells carriers for tissue engineering and as scaffold architectures to repair large bone defects.
The porous structure allows new bone tissue ingrowth and vascularisation, with incoming of fluids with a high rate of new bone formation for a faster repair of large bone loss (4).
Strocchi (Pharmacokinetics ANT Laboratory, Dept. of Organic Chemistry, Industrial Chemistry, University of Bologna) for the tests carried out with Paxitaxel.
Ravaglioli; "Porous ceramics structured for bone-cartilage implants", Proc.

Effect of Different Sub-fractions P-RC APMP Fines on Co-flocculation Process of Fines-Calcium Carbonate Tao Lin1,2,a, Jian-wei Song1,b, Xue-feng Yin1,c, Zhi-jie Wang1,d 1Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper, College of Papermaking Engineering, Shaanxi University of Science and Technology, Xi’an, 710021, China 2Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Xi’an, 710021, China alin.tao.ppt@gmail.com, bsongjianwei108@163.com, cyinxuefeng@sust.edu.cn, dwangzj@sust.edu.cn Keywords: P-RC APMP, fines, co-flocculation, whiteness, handsheet properties Abstract: Poplar P-RC APMP was chosen as raw materials for fines generation and collecting, and then the P-RC APMP fines and calcium carbonate were co-flocculated before they were added into fiber fraction to make fine paper.
As the reference shows, the fines in paper production is an important factor for the effect of papermaking additive and filler retention, and the macromolecular retention aid(CPAM) is a kind of positive charge material with chain structure and high surface density[2].
The fillers fill paper structure more compactly and fiber surface scattering point on the fiber surface becomes less.
Fines in the co-flocculation flocs is filled into fiber network, and the co-flocculation flocs itself has “hairs”, which is fines wrapped in the structure.
The wet and chemistry performance of fiber and fines.

Nevertheless, graphene has a higher potential for adsorption of acid gases due to its very high specific surface area and ability to control its chemical structure.
H2S reacts rapidly with primary, secondary, or tertiary amines via direct proton transfer reactionsregardless of the structure of the amine used in the sweetening process [1,8].Equations (1), (2), and (3) illustrate the direct proton transfer reactions in the case of primary, secondary, and tertiary amines, respectively, to form the amine hydrosulfide.
These FTIR assignments confirms the oxidized structure of GO.
International Journal of Industrial Chemistry, Sep. 2013 [4] F.
“Rate-Based Modeling of Reactive Absorption of CO2 and H2S into Aqueous Methyldiethanolamine”.Industrial & Engineering Chemistry Research, vol. 37(10), pp. 4107-4117, 1998

Changes of organization structure were observed by optical microscope.
Observation of Root and leaf organization structure The first 2 mm root tips and the bottom of leaf were obtained by hand cut avoiding embedding nanoparticles from the tissues and stained with 0.05% toluidine blue , embedded according to paraffin method.
Microscopic of root and leaf organization structure Seedings of Eichhornia crassipes were picked up after exposed in 50 mg/L CuO ENPs for 2 days.
Analytical and bioanalytical chemistry, 2005, 381(3): 607-616
Environmental Toxicology and Chemistry, 2012.

Structure and purity analysis of the product.
In the spectrum the following structures can be identified: 3385 cm-1 (O-H stretching vibration of alcohol hydroxyl); 2929, 2876 cm-1 (C-H stretching vibration in methylene); 1612, 1513 cm-1 (aromatic skeletal vibration of benzene rings); 1455 cm-1 (C-H bending vibration of methylene); 1299cm-1 (C-O-C stretching vibration from cyclic ether); 1244cm-1 (C-O-C asymmetric stretching vibration of aromatic ether and cyclic ether); 1045 cm-1 (C-O stretching vibration from alcohol hydroxyl); 830 cm-1 (absorption arose from para 2 replacement of benzene ring).
Shen, Organic chemistry, Hefei University of Science and Technology, 318 (2002).
Rong, Spectrum data table-structure of organic compounds analysis.
Li, Organic preparation chemistry manual.

Investigation of the Electronic Structure of BiFeO3 Epitaxial Films by Polarized X-ray Absorption Spectroscopy H.
Gao1,b 1National Synchrotron Radiation Laboratory and Collaborative Innovation Center of Chemistry for Energy Materials, University of Science and Technology of China, Hefei 230026, China 2Department of Materials Science and Engineering, University of California, Berkeley 94720, USA 3Department of Physics, South University of Science and Technology of China, Shenzhen 518055, China azlluo@ustc.edu.cn, bcgao@ustc.edu.cn Keywords: Polarized x-ray absorption spectroscopy, Electronic structure, Epitaxial film, BiFeO3, Abstract.
For BFO/STO, electronic structure is almost isotropic.
But, the evolution of electronic structure, which is considered to be structure-dependent and closely related with physical property, is not quite clear when the crystal structure of BFO transforms from rhombohedral to tetragonal.
On the other hand, electronic structure is almost isotropic for BFO/STO.

Solvent-free Green Synthesis of 4-amino-5-substituted- 1,2,4-triazole-3-thione by Grinding Yu Ting LIU1,a *, Si Meng SONG1,b and Da Wei YIN2,c 1Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education.
Shaanxi University of Science & Technology, Xi'an, 710021, Shaanxi, China. 2College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, Shaanxi, China.
A novel efficient method for the synthesis of 4-amino-5-substituted-1,2,4-triazole-3- thione was developed in which substituted aromatic/aliphatic acids with symmetrical dithiocarbohydrazones were used as starting materials and phosphorus pentachloride was used as catalyst.The structures of these products were confirmed by melting point determination, IR, 1H NMR and elemental analysis.
Similarly the 1H NMR spectra of all the synthesized triazoles 2(a–j) showed two characteristic broad signals at δ 4.3–5.0 and the other at δ 12.0–12.80, due to NH2 and NH hydrogen of the 1,2,4 -triazole ring.The IR and elemental analysis,1H NMR supported the structures of various synthesized triazoles.
Firouzi, New dinuclear copper (I) metallacycles containing bis-Schiff base ligandsfused with two 1,2,4-triazole rings: Synthesis, characterization,molecular structures and theoretical calculations, Polyhedron. 69 (2014) 188–196

Their structures are easy to collapse probably.
Journal of Materials Chemistry (2010), 20 (16)
Chemistry (2015), 21 (36), 12581-5
Inorganic Chemistry Communications (2014), 39, p.83-85
Chemistry of Materials (2016), 28 (8), 2573-2580