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Online since: August 2019
Authors: Heni Rachmawati, Hermawan Kresno Dipojono, Lusia Silfia Pulo Boli, Vera Khoirunisa, Rizka Nur Fadilla, Adhitya Gandaryus Saputro, Febdian Rusydi
All of possible radical structures are optimized using unrestricted calculation.
Results and Discussions The optimized structure of gnetin C and site numbering of hydrogen abstraction are shown in Fig. 1.
The geometric structure of gnetin C does not change when it becomes radical after donating a hydrogen atom.
Harman, Aging: A Theory based on free radical and radiation chemistry, J.
Merr., yellow tea and red wine through reaction with DPPH free radicals, Arabian Journal of Chemistry 9 (2016) 1-8
Online since: September 2007
Authors: Guo Wei Ma, Xin Gui Zhang, N.P. Yi, X.L. Chen, H. Wu
Experimental Analysis of Chemical Damage of Water to Soil Structure Xingui ZHANG1, 2, a, G.W.MA 2, b , N.
Chemical components of the soil take an important role in the structure stability.
The soil strength is composed of different levels of structures, i.e., macro-, micro-, and mini- structures.
Experiment We adopts silty clay with natural structure as soil sample.
Aquatic Chemistry-an introduction emphasizing chemical equilibria in natural waters.2nd Ed, John Wiley and Sons [4] L.B.L.S.
Online since: April 2012
Authors: Qiang Xu
The crystal structure of HRP has been solved [2].
Usually, the enzyme activity index for HRP is considered by the Soret band from the Chemistry angle, while biologists would like to use RZ as a criteria.
Biological structure is closely related to function.
Chinese Journal of Inorganic Chemistry, Vol. 20(2004), p. 1097–1100 [8] T.E.
Proteins: Structure and Molecular Properties (W H Freeman and Company, New York 1993)
Online since: August 2010
Authors: Julia Aguilar, Jin An Wang, Alberto Hernández, Li Fang Chen, Luis E. Noreña-Franco
The preservation of the Keggin structure of the H3PW12O40 structure was further confirmed by 31P NMR-MASS.
Ayame: Industrial and Engineering Chemistry Research Vol. 40, (2001), p.1076. 13.
Ayame: Chemistry Communications, (1998), p. 1974. 14.
Sugioka: Industrial and Engineering Chemistry Research Vol. 37, (1998), p. 867. 15.
Sugioka: Industrial and Engineering Chemistry Research Vol. 38, (1999), p. 385. 16.
Online since: April 2020
Authors: Waewwow Yodying, Thanapat Autthawong, Yothin Chimupala, Thapanee Sarakonsri
Nanostructural Characterization of Nitrogen-Doped Graphene/ Titanium Dioxide (B)/ Silicon Composite Prepared by Dispersion Method Waewwow Yodying1,a, Thanapat Autthawong1, Yothin Chimupala2,4 and Thapanee Sarakonsri1,2,3,5,b* 1Department of Chemistry, Faculty of Science, Chiang Mai University, Muang, Chiang Mai 50200, Thailand 2Material Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand 3Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Chiang Mai University, Muang, Chiang Mai 50200, Thailand 4Department of Industrial Chemistry, Faculty of Science, Chiang Mai University, Muang, Chiang Mai 50200, Thailand 5Center of Excellence in Materials Science and Technology, Chiang Mai University Muang, Chiang Mai 50200, Thailand awaewwow.yodying@gmail.com, b*tsarakonsri@gmail.com Keywords: lithium-ion batteries; anode materials; titanium dioxide; silicon; nitrogen-doped graphene
The last material used in this study was nitrogen-doped graphene (NrGO) due to the porous network structure, higher specific capacity compared with graphite, remarkable electric and thermal conductivity.
The author also would like to thank the Department of Chemistry, Electron Microscopy Research and Service Center, Chiang Mai University for sample characterizations.
Huang, Bio-inspired sandwich-structured carbon/silicon/titanium-oxide nanofibers composite as an anode material for lithium-ion batteries.
Sarakonsri, Nano-structure tin/nitrogen-doped reduced graphene oxide composites as high capacity lithium-ion batteries anodes.
Online since: October 2014
Authors: Yu Ming Zhou, Tao Zhang, Zhen Yu Mei, Yong Juan Wang, Xiao Hai Bu, Jin Gang Hu, Mu Yang Zhang, Ming You Wang
Morphosynthesis of hierarchically structured LDHs using cellulose templates Tao Zhanga, Zhenyu Meia, Yongjuan Wanga, Xiaohai Bua, Yuming Zhoua*, Jingang Hua, Muyang Zhanga, and Mingyou Wangb a School of Chemistry and Chemical Engineering, Southeast University, Jiangsu Optoelectronic Functional Materials and Engineering Laboratory, Nanjing 211189, China b Xingtai Polytechnic College,Xingtai 054035,China * fchem@163.com Keywords: hierarchical structure; LDHs; multi-scale; ZnO/LDHs Abstract.
Hierarchically structured LDHs are being actively investigated due to their potential applications in bioseparation and catalysis which result from their special surface structures and positively charged nanosheets.
However, the ordered layered structures have always been observed, mainly due to the special 2D layer structures of LDHs.
The quest for the multi-scale structures and multi-components materials with diverse structures and desirable properties has lead to a tremendous research activity exploring the hierarchically structured materials [1].
The morphology and structure of the paper-based Al2O3 are displayed in Fig. 1A and B, which proves that the structure of paper have been successfully replicated by template method.
Online since: May 2013
Authors: Mohd Zobir Hussein, Siti Halimah Sarijo, Sheikh Ahmad Izaddin Sheikh Mohd Ghazali
Fig. 1: Molecular structure of 3,4-dicholorophenoxy acetic acid.
Molecular structure and spatial orientation of intercalated 3,4-dicholorophenoxyacetic acid.
New Journal of Chemistry 22: (1998) 105-115
Chemistry, 29 (1990) 2393
Solid State Chemistry. 177 (2004) 4047
Online since: January 2020
Authors: Kittisak Choojun, Chaval Sriwong
Removal of Methylene Blue Dye Using Metal-Free g-C3N4 Photocatalyst over Natural Sunlight Irradiation Chaval Sriwong1,2,a* and Kittisak Choojun1,3,b 1Department of Chemistry, Faculty of Science, King Mongkut’s Institute of Technology Ladkrabang, Chalongkrung Road, Ladkrabang, Bangkok 10520, Thailand 2Smart Materials Research and Innovation Unit, Faculty of Science, King Mongkut’s Institute of Technology Ladkrabang, Chalongkrung Road, Ladkrabang, Bangkok 10520, Thailand 3Catalytic Chemistry Research Unit, Department of Chemistry, Faculty of Science, King Mongkut’s Institute of Technology Ladkrabang, Chalongkrung Road, Ladkrabang, Bangkok 10520, Thailand achaval.sr@kmitl.ac.th, bkittisak.ch@kmitl.ac.th Keywords: Photocatalysis, graphitic carbon nitride (g-C3N4), melamine, methylene blue (MB), thermal condensation method.
SEM images showed the morphologies of the g-C3N4 samples had more flake-like structures upon the increasing of annealing temperatures.
The crystal structures of all as-synthesized g-C3N4 samples were confirmed via an X-ray diffractometer (XRD) (XRD-6100, Shimadzu, Japan).
Results and Discussion To confirm the crystal structures and functional groups of as-synthesized g-C3N4 samples at various annealing temperatures, the XRD and FTIR techniques were used, which the results are shown in Fig. 1.
Acknowledgment The authors would like to thanks the Department of Chemistry, Faculty of Science, King Mongkut’s Institute of Technology Ladkrabang for the financial support.
Online since: March 2022
Authors: Swati B. Kale, Atul P. Keche, Santosh D. More, Rani Dudhal, Shakti N. Bajaj, Vishnu B. Raut
The metal nitrate to fuel ratio was chosen as 1:3 using the propellant chemistry approach.
The room temperature XRD pattern reveals the formation of a single-phase cubic spinel structure.
All the reflections that appeared in this pattern belong to the cubic spinel structure.
The pH of the solution plays important role in the evolution of the structure[12].
Author also thankful to Dept. of chemistry Dr.
Online since: September 2007
Authors: Lian Cheng Zhao, Wei Cai, Hong Tao Li, L. Sun, F.Y. Guo, Q. Lv, Y.H. Xu
Influence of the Various Li/Nb Ratios on Defect Structure and Photorefractive Properties of In: Eu: Fe: LiNbO3 Crystals L.
Zhao 1 1 School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China 2 Department of the applied chemistry, Harbin Institute of Technology, Harbin 150001, China 3 Division of Electronic Technology, Mudanjiang Medical College, Mudanjiang, 157011.P.R.China a myfuture2002.stuednt@sina.com Keywords: In: Eu: Fe: LiNbO3 Crystals; Li/Nb ratios; Photorefractive properties; Defect structure.
The new crystal composition and defect structure were analyzed by the UV-Vis spectroscopy.
The crystal defect structure has been analyzed by the UV-Vis spectrum.
For structure analyses and two-wave coupling experiments, 8mm×8mm×3mm Y-cut plates were cut and polished.