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Yu [2] produced MnZn ferrite materials with spinel structure using Spark plasma sintering (SPS).
The phase structure of the sample was analyzed by XRD, and microstructures of were examined by scanning electron microscope (SEM). 3.
Microstructural evolution Fig. 2 XRD patterns of the sample (a) before sintering (b) after sintering Fig. 3 Microstructure of sample sintered for 4 min at 900℃ The microstructural evolution of sintered samples is dependent on the physical characteristics of starting powders as well as the chemistry and composition of fluxes.
As can be seen, both samples have a typical spinel structure.
However, the composition and structure of spinel change after sintering.

After the treatment, the morphology, ingredient and structure of oxide layer of the sample surface were characterized by an Auger electron spectroscopy (AES) measurement.
Rs, ohm•cm 2 Rt, ohm•cm 2 Rf, ohm•cm 2 Treated sample 4.167 119.7 1.395E7 Untreated sample 3.366 2.81E5 - a b To study the ingredient and the structure of oxide layer, the AES measurement was used.
Fig.5 (b) also shows that the oxide layer of the samples with plasma is the double-deck structure.
The structure change of passivation layer may be the reason of improvement of corrosion resistance after plasma treatment.
The results of AES analysis indicate that the oxide layer formed by the plasma treatment was found to be much thicker than that without plasma treatment and to be double-deck structure, which should be the reason for the change of EIS characteristic after the plasma oxidation.

The chromoplast contains specialized structures of carotenoids lipids and proteins and usually they may be classified as globular, fibrillar, crystalline and tabular.
Excitation and de-excitation in chromophore molecules under exposure of electro-magnetic (EM) radiation may be explained by supra-molecular chemistry [3].
Microscopic examination showed that the crystalline structure [6] of LHC displayed hexagonal arrays of 80 Ǻ particles with a centre-to-centre distance ~ 120 Ǻ.
Atwood in Supramolecular Chemistry, John Wiley & Sons ltd, England, Ch-8, 2000, pp. 574-639
Buschmann in Current Protocols in Food Analytical Chemistry, John Wiley & Sons, Inc.

Green Synthesis of Magnesium Oxide Nanoparticles Using Melaleuca Leucadendra Waste Yithro Serang1,2,a, Chang–Nan Chen1,b*, Meng-Jen Lee1,c* 1Department of Applied Chemistry, Chaoyang University of Technology, 168 Jifeng East Road, Taichung, Taiwan, ROC. 2Nusaputera College of Pharmacy, Medoho street 3, no 2, Semarang, Central Java, Indonesia.
Introduction Nanotechnology, a pivotal area in modern research, involves the synthesis, strategy, and manipulation of particle structures, particularly those ranging from 1 to 100 nm in size.
Among these, MgO nanoparticles stand out for their high ionic character, simple stoichiometry, crystal structure, and surface structural defects.
By investigating the potential of these residual solutions in the manufacturing of MgO nanoparticles, the study opens avenues for a more eco-friendly and cost-effective method of nanoparticle production, which could have significant implications in various industrial applications [12].This combination of traditional plant extraction techniques and advanced nanotechnology not only aligns with the principles of green chemistry but also enhances the utility of Melaleuca leucadendra in modern science and industry.
Egyptian Journal of Chemistry, 2022. 65(1): p. 607-618

The relative layer structures of MI-RGO and EE-GO were confirmed by XRD.
The D band is considered to be a sign of disorders that occurs due to various defects present in the carbon structure such as amorphous carbon structures, granule margins and any other vacancies as reported earlier [40-42].
Wherein, the ultra-thin layers closely associated with each other and having wrinkled paper-like structure [29, 46].
Manzhos, Production of few-layer graphene structures in different modes of electrochemical exfoliation of graphite by voltage pulses, Instr.
Frontiers in Chemistry 7 (2019) 355

The experimental results show that the pulse current is the key factor to the formation of micro-cellular structure.
The interfacial bond of micro-cell structure has a relationship with the pulse current.
It establishes the foundation for the preparation of micro-cellular structure.
Li, A bulk metal/ceramic composite material with a cellar structure, Chin.
Dean, Lange’s Handbook of Chemistry, thirteenth ed., Mc Graw-Hill, New York, 1985

In this paper, the coprecipitation/thermal crystallization method was used to synthesize the MgMn0.5Ti0.5O3 of spinel-type oxide, whose composition and structure are different from those in literature[3-4], The experimental result have proved that the inorganic material has better selectivity and higher capacity of exchange for Li+ in the solution removed Li+ previously.
The sample obtained by thermal crystallized at 900℃ and acid modified was designated as MgMnTi-900 (H), X-ray diffraction was carried out to compare their stabilization of structure.
The structure of compound metal oxide MgMn0.5Ti0.5O3 crystallized at 900℃ was much perfect.
As shown, the structure of MgMnTi-900(H) is nearly constant, which is inverse spinel oxide type too.
Rare Metal, 1999,18(2),143 [3] Y.F.Liu, Q.F, Kenta Ool: The synthesis and ion-exchange property of Li+ memorized spinel LiAlMnO4,J.Ion Exchange and Adsorption.1995,11(3),216 [4] J.H.Jiang, D.Q.Dong, J.L: Li Synthesis of Li4Mn0.5Ti0.5O4 and its selectivity to Li+ exchange, J.Chinese Journal of Applied Chemistry.2006,23(4),357

The relationship between microstructure and coloring Glaze distributed columnar and tabular crystals nanoscale structures.
These nanoscale phase separation structure on the coloring is contributing.
In fact, the mother of the glaze and crystallization associated peripheral crystal grain occasionally uneven nanoscale phase separation structure of diffraction and opalescence behavior is affected glazed coloring, emulsion and gloss level of an important structural factor.
Therefore, the coloring is actually pink glaze chemistry, and physical coloring coloring comprehensive reflection of the macro point of view, glaze coloring, emulsion, and gloss degree is uniform.
(3) the coloring glaze powder is a transition metal of Fe ions ligand selective absorption of light, nano-phase separation structure of the Rayleigh scattering of incident visible light and micron crystals, bubbles, glaze group and the like of the incident reflection and refraction of light produced by a comprehensive reflection.

Construction of Nano Coenzyme and Enzyme Multilayer Film on Gold Electrode by Self-assembly Method Kunyun He1,a, Xingsheng Wang1,b, Haitao Zheng1*,c and Shin-ichiro Suye2,d 1 School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300160, China 2 Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, University of Fukui, Bunkyo 3-9-1, Fukui 910-8507, Japan ahekunyun2011@163.com, bwxs4000@hotmail.com, czhenght999@hotmail.com, dsuyeb10@u-fukui.ac.jp Keywords: Dehydrogenase, coenzyme, nano-structure, biosensor Abstract.
The G6PDH/PEI-Fc-NAD multilayer film was characterized by atom force microscope and electrochemical experiment, which proved that a nano structure thin film was immobilized by the LBL technique.
Ferrocene labeled high molecular weight NAD derivative (PEI-Fc-NAD) was prepared according to our previous works [11], and the structure of NAD+ and PEI-Fc-NAD are shown in Fig. 1.
Fig. 1 Chemical structure of NAD+ and PEI-Fc-NAD Au disk electrode (diameter: 2 mm) was finely polished and electrochemically cleaned by cyclic voltammetry between –0.2 to +1.7 V vs.

The composite materials have better cell structure due to the addition of sepiolite nanofibers, thus more and more impact load was imposed on the resin matrix instead of foams full of massive gas.
Furthermore, nanofibrous structure of sepiolite nanofibers forms intensive structure in the matrix, thus leading to the increase of compressive strength.
Lim, Plastic deformation modes in rigid polyurethane foam under static loading, International Journal of Solids and Structures, 38(2001) 9267- 9279
Sultan, Preparation and characterization of rigid polyurethane foam prepared from sugar-cane bagasse polyol, Materials Chemistry and Physics, 129(2011) 301-307