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Online since: May 2022
Authors: Chairil Anwar, Winarto Haryadi, Chairul Rijal
Elucidation of the structure of these compounds was performed using FTIR, GC-MS, TLC-Scanner, MS-Direct, 1H-NMR, and 13C-NMR.
Flavonoids are plant secondary metabolites with polyphenolic structures found in certain fruits and vegetables [7].
Markham, Flavonoids: Chemistry, Biochemistry and Applications, CRC Press, Boca Raton, Florida, 2005
Fessenden, Organic Chemistry, 3rd ed., Wadsworth Inc., Belmont, California, 1986
Fleming, Spectroscopic Methods in Organic Chemistry, McGraw-Hill, UK, 1980
Online since: December 2013
Authors: Zeng Yun Jian, Yan Yan Zhang, Jun Feng Xu, Fang E Chang, Man Zhu
The structures and properties were investigated by using SEM, XRD, DSC, FTIR and Vickers hardness tester.
Several reports have been published to study the structure and properties of Ge23Se67Sb10 glass [8,9].
In this study, the effect of RbI on the structure and property of Ge23Se67Sb10 glass will be presented.
Yang: Chemistry of Materials, Vol. 20 (2008) No.8, p.2637
Jacques: Journal of Physics and Chemistry of Solids, Vol. 68 (2007) No.5-6, p.968
Online since: June 2019
Authors: Zheng Lu, Yan Cai Xiong, Guo Ai Li, Zhao Hui Feng, Juan Yu
When the compression deformation rises to 20%, the elongated structure are replaced by a more uniform and equiaxial structure.
The structures of the alloys, however, depend on chemistry, grain structure, and total heat treatment process[9,10].
Rioja[12] has studied the relationship between processing, chemistry, and anisotropies of Al-Li alloys.
It can be seen that the internal structure of the plate is a mixture of rolled structure and recrystallized structure.
When the degree of compression deformation rises to 20%, the elongated structure is replaced by a more uniform and equiaxial structure.
Online since: December 2024
Authors: C. Ramajeya, K. Balasubramanian
This dual focus on tunneling and diffusion allows for the creation of more selective and efficient catalysts, essential for green chemistry.
By using amino acids, which are derived from renewable biological sources, the environmental impact of material production is reduced, aligning with green chemistry principles.
Figure 3a illustrates the bond structure of CO and CN in L-Serine.
The TG curve in fig 5b shows the onset of weight loss at a slightly lower temperature depending on the interaction between L-serine and the CBS crystal structure. on comparing these two, onset of decomposition is causing shift in the doped crystal as in fig 4, indicating how L-serine affects the overall thermal stability.
This efficiency aligns with the principles of green chemistry, which prioritize reduced energy consumption and minimal environmental impact.
Online since: April 2014
Authors: Yu Xia Luo, Jian Fei Zhang, Ai Hua Sun, Cheng Yi Chu, Shi Zhou, Jian Jun Guo, Gao Jie Xu
Introduction The self-organization of colloidal building blocks has drawn the attention of researchers in the field of materials chemistry and soft condensed-matter physics [1].
In the absence of the electric field, a reflection peak at 710 nm appeared due to the Bragg diffraction from the polycrystalline structures [18].
The different response of the position of peak maximum to external electric field is due to the colloidal structures.
Watanabe, Journal of Materials Chemistry 19 (2009) 4778
Ge, Journal of Materials Chemistry 22 (2012) 367
Online since: October 2020
Authors: Ludmila I. Bondarenko, Olga V. Meteleva
Introduction One of the modern chemistry technology tasks is to create the new generation composite materials.
Cper was significantly reduced (6-8 times) due to the use of all ASFM test structure variants.
The resulting latex structures had uniformity and high aggregative stability over time.
Yeliseyev, Polymeric dispersions, Chemistry, Moscow, 1980
Chechen, Latex, Chemistry, Moscow, 1983
Online since: June 2022
Authors: Dianisa Khoirum Sandi, Fahru Nurosyid, Yofentina Iriani, Rindhi Afriani
The crystal structure of the SrTi0.80Mn0.20O3 samples was determined via XRD.
Commonly, sintering does not affect the crystal structure, one of which is indicated by the unchanged lattice constant.
Kittilstved, Reversible control of the Mn oxidation state in SrTiO3 bulk powders, Frontiers in chemistry. 7 (2019) 353
He, Effect of Sr-Ti molar ratio on strontium titanate prepared by sol-gel method, Asian Journal of Chemistry. 25 (2013) 5311-5314
Ramachandran, Investigation on versatile behaviour of Cd doped SrTiO3 perovskite structured compounds, Solid State Communications. 302 (2019) 113716
Online since: July 2019
Authors: Carlo Naddeo, Liberata Guadagno, Roberto Pantani, Vito Speranza, Tullio Monetta, Annalisa Acquesta
On the sample surface, the presence of isolated structures (with diameter ranging from 100 nm to 200 nm) can be recognized.
These structures are surrounded by the polymer matrix that exhibits a lower value of the modulus with respect to the unirradiated sample.
Nguyen, Methods to assess the impact of UV irradiation on the surface chemistry and structure of multiwall carbon nanotube epoxy nanocomposites, Carbon 69 (2014) 194-205
Application of fourier transform IR to degradation studies of epoxy systems, Journal of Polymer Science: Polymer Chemistry Edition 17(10) (1979) 3121-3148
Gardette, Study of the Degradation of an Epoxy/Amine Resin, 1, Macromolecular Chemistry and Physics 206(5) (2005) 575-584
Online since: March 2020
Authors: Nik Aziz Nik Ali, Ahmad Nazri Dagang, Mohd Norizam Md Daud, Mohd Sabri Mohd Ghazali, Nurhayati Ishak, Hasiah Salleh, Salmah Mohd Ghazali, Nurul Huda Kamaruzaman, Nora’aini Ali
The chemical structure of natural dyes was examined by FTIR technique (Model NICOLET 380 FTIR).
According to Jasim [15],the natural dyes structure must possesses several carbonyl (C=O) and hydroxyl (-OH) groups which constructed the complexion of the Ti on the TiO2 surface.
Zenoozi, A comprehensive review on poly(3-alkylthiophene)-based crystalline structures, protocols and electronic applications, Organic Electronics, 51 (2017) 362-403
Forni, Role of pH and pigment concentration for natural dye-sensitized solar cells treated with anthocyanin extracts of common fruits, Journal of Photochemistry and Photobiology A: Chemistry, 316 (2016) 24-30
Cao, Effects of dye loading conditions on the energy conversion efficiency of ZnO and TiO2 dye-sensitized solar cells, The Journal of Physical Chemistry C, 111 (2007) 18804-18811
Online since: July 2016
Authors: Fang Li Chi, Guo Dong Zhou, Biao Song, Bin Yang, Yao Hui Lv, Song Lin Ran, Chunguang Li
China 2State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P.
In this work, pure CoTiO3 nanoparticles with perovskite structure were prepared using sol-gel method.
The crystal structure of dried powders were characterized from the X-ray powder dif-fraction (XRD) patterns using a Rigaku D/MAX 2550 diffractometer with Cu Kα radiation (λ = 1.5418 Å).
The intensity{Zheng, 2015 #236} of the absorption peak of RhB at 554 nm decreases with time very quickly, which indicates the destruction of chromophoric structure of RhB.
Acknowledgements This work was supported by Open Research Fund Program of State Key Laboratory of Inorganic Synthesis and Preparative Chemistry (No. 2014-31) and Youth Foundation of Anhui University of Technology.