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Preparation of ZnO·SrO and Its Catalysis to PET Depolymerization under Microwave Irradiation Mengna Zuoa, Weilu Zhangb, Qinghua Fengc, Chunhua Hand, Dong Zhang e* Institute of Applied Chemistry, Wenzhou University, Wenzhou, Zhejiang, 325035, China azuomengna@126.com bzwl@wzu.edu.cn cfqh.fsx@163.com dfrankhch@163.com edzhang@wzu.edu.cn Keywords: PET; microwave; depolymerization; ZnO•SrO; catalyst Abstract.
Composite metal oxide is an important kind of catalysts, and are widely used as catalyst for the special crystal structures, electromagnetic properties, and higher redox activities[4].
The results showed that the structures of the prepared ZnO•SrO were integrated.
In the process with HBO3, the catalyst structure was integrated.

Most clays have a layered structure, the alternation of layers determines the type of clay: bentonite, montmorillonite, hydromicaceous [2].
This property characterizes the ability of clays to swell in water, so a change in the structure of clay during calcination inevitably leads to a deterioration of this property.
This is since at higher temperatures of calcination the clay loses more water, which is part of the mineral itself: adsorption and diffusion water, that is, the structure of the clay is broken and, consequently, its strength properties change.
Colloid chemistry, Urait, Moscow, 2014

In many of self-assemblies, the self-assembled cyclic peptide nanotubes (SPNs) exhibit structural and functional features for its flexible design and easily synthesis, suitable for various promising potential applications in biology, chemistry and materials science [5,6].
In this works MM is applied to the dimer models to optimize their structures.
One structure is stored in the trajectory every 1000 fs for analysis.
Results and Discussion The Structure of Single Dimer.
The Structure of Dimer in Ensemble.

Introduction Graphene has a layered structure in which carbon atoms are linked together through sp2 hybridization [1, 2].
Graphene produced in this work retains the original pristine structure of graphite without the crystal defects.
Chemistry-a European Journal, 2014. 20(48): p. 15760-15767
Physical Chemistry Chemical Physics, 2020. 22(39): p. 22157-22179
Journal of Physical Chemistry C, 2013. 117(20): p. 10730-10742

Details related to chemistry, morphology, microstructure and thermal stability of liquid argon and liquid nitrogen cryomilled CP-Ti powders were presented in a recent article by Ertorer et al. [11], and hence will not be reproduced here.
The cryomilling media selected (e.g., nitrogen versus argon), has a strong influence on chemistry.
For cryomilled Ti, this is thought be effective in realignment of the dislocation arrays and thereby leading to the formation of a recrystallized structure with nitrogen rich grain boundaries.
The multimodal structure representing a wide grain size distribution range instead of a discrete bimodal distribution is thought result of two factors.
This effect was attributed to ordering of defect structures which is thought to lead the enhancement of grain boundary sliding as deformation mechanism.

Performance of Salak (Salacca zalacca) Seed Extract to Green Corrosion Inhibitor on AISI 1040 Steel Muhammad Rifani1,a, Daffa Irsyad D.2,b, Ade Wahyu Yusariarta3,c, Jatmoko Awali4,d, Fredy Kurniawan5,e, Masato Tominaga6,f, Yusairie Mohd7,g, Yunita Triana8,h* 1,2,3,4,8Department of Material and Metallurgical Engineering, Institut Teknologi Kalimantan, Balikpapan 76127, Indonesia 5Department of Chemistry, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia 6Department of Chemistry and Applied Chemistry, Graduate School of Science and Engineering, Saga University, 840-8502 7Faculty of Applied Science, Universiti Teknologi MARA, Shah Alam, Selangor 40450, Malaysia a06191042@student.itk.ac.id, b06191017@student.itk.ac.id, cadewahyu27@lecturer.itk.ac.id, djatmoko.awali@lecturer.itk.ac.id, efredy@chem.its.ac.id, fmasato@cc.saga-u.ac.jp, gyusairie@uitm.edu.my, hnita@lecturer.itk.ac.id Keywords: AISI, Corrosion, Green, Inhibitor, Salacca zalacca, Seed Abstract.
Introduction Corrosion in a chloride-containing acidic environment is a major issue for steel structures, leading to degradation and material failures [1], [2].
Chemically, natural organic inhibitors contain S, N, O, P, and ring structures of heterocyclic compounds [16].
Organic Compounds in Salak (Salacca zalacca) Seed Extract Organic Compound Molecular Structure Annotation Flavonoid Flavonoids possess various functional groups, including double bond C=O, double bond C=C, single bond C-O, single bond C-H, and single bond O-H.
Flavonoids, according to [40], have free electron pairs and double bonds in their molecular structure, which serve as a medium for the inhibitor to react with iron metal.

UV and IR data confirmed commonly the formation of Schiff base as well as aromatic substituted groups in molecular structures.
The difference of thermal stability is mainly attributed to molecular structures, formation of Schiff base group and different substituted groups.
The structures of these molecules were confirmed by 1H NMR.
Chemical structures and abbreviations of glutamate and Schiff base compounds.
The difference of thermal stability is mainly attributed to molecular structures, formation of Schiff base group and different substituted groups.

Thus, the silica coating was chosen because it is biocompatible, stable in water and has a rich surface chemistry.
It can be seen that all samples provides broaden ZnO diffraction peaks, indicating that the structure of ZnO nanoparticles virtually unchanged during the silica coating process.
Zeng: Ultrasonic Chemistry, 17 (2010) p. 193
Enpuku: Ultrasonic Chemistry, Vol. 17 (2010) p. 193 [9] I.A.
Suzuki: Ultrasonic Chemistry, 19 (2012) p. 750

MWNTs with intrinsic closed structure having the blocked hole and MWNTs with open structure were studied through hydrogen thermal desorption technique equipped with gas chromatograph.
Hydrogen desorption spectra and the evolved hydrogen amount of (a) MWNTs with closed structure and (b) MWNTs with open structure.
Figure 3 shows the hydrogen activation energy of MWNTs with closed structure and open structure at ambient temperature site.
TEM image of the Ni-dispersed carbon nanotube with open structure.
Kissinger, Analytical Chemistry 29 (1957) p. 1702 [9] Y.H.

It was shown that the network structures have been formed during the copolymerization.
The structure of the POSS based nanocomposites were characterized by FTIR.
Results and Discussion Structure characterization of OVPOSS-PS composites FTIR spectra was used to check the structures of the OVPOSS-P(BA-MMA) nanocomposites.
This fact convinces that the nanocomposites consist of the network structures.
The structures of nanocomposites were well characterized by FTIR which confirmed that the network structure has formed.