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Online since: September 2011
Authors: Xiao Hui Jiang, Li Mei Zhou, Shan Zhuo Yao, Ming Duan, Xing Qi Hu
Inhibitive Performance of 1,4/1,6-Bis(α-alkyl pyridinium ) Butane/Hexane Dibromide on A3 Steel Xiaohui Jiang1, Limei Zhou 1, Shanzhuo Yao1, Ming Duan2, Xingqi Hu2 1 Chemistry and Chemical Engineering College, China West Normal University, Nanchong Sichuan, P.
The structures of the gemini surfactants were presented in Scheme1.
The melting point was obtained by XT-4 melting point apparatus, the structure was confirmed by means of Han-Sun (dpx300) nuclear magnetic resonance spectrometer, FT-IR (Nicolet) infrared spectrometer and BioTOFQ mass spectrometer (The structure information was available in supplementary materials). 1,6-Bis(α-decylpyridinium) hexane Dibromide.
The adsorption of the organic compounds on the metallic surface was influenced by the nature of the charge of the metal, the chemical structure of the inhibitor and the type of electrolyte [17].
Zhou, Chinese Journal of Organic Chemistry 24 (2004) 563
Online since: November 2017
Authors: Volodymyr Kotsyubynsky, Ivan Myronyuk, Volodymyr Chelyadyn, Andrii Hrubiak, Volodymyr Moklyak, Sofia Fedorchenko
Rod-Like Rutile Nanoparticles: Synthesis, Structure and Morphology Volodymyr Kotsyubynsky1,a*, Ivan Myronyuk2,b, Volodymyr Chelyadyn3,c Andrii Hrubiak4,d, Volodymyr Moklyak5,e, Sofia Fedorchenko6,f 1,2,3,6Vasyl Stefanyk Precarpathian National University, 57 Shevchenko Str., Ivano-Frankivsk, 76025, Ukraine 4,5Institute of Metal Physics, National Academy of Science, 36 Aс.
Different chemical technologies (especially sol-gel process) allow obtaining the titanium dioxide in the form of porous gels, spherical particles, rods, fibers or tubes with anatase, rutile or brookite structure [9].
The regular lattice planes indicated about a close to single crystal structure of the nanorod.
The dihedral angle between {001} and {110} planes for tetragonal structure is 90о.
Rao, Polymorphic phase transition among the titania crystal structures using a solution-based approach: from precursor chemistry to nucleation process, Nanoscale 6 (2014) 11574-11632
Online since: February 2008
Authors: Chiaki Azuma, Marcos Lopes Dias, Marlon S. Santos, Felipe Rodrigues Alves
The structure was confirmed by Raman and FTIR spectroscopy, wide angle X-ray scattering (WAXS) and thermogravimetry.
The results were indicative of a surface structure similar to the represented in Fig. 3B.
The spectrum suggests a structure containing methyl and vinyl groups.
The curve shows that also a low angle peak appear for these materials, which suggest that the structure is not homogeneous and probably a shell containing the organic vinyl and methyl groups is present in the structure of the particles.
Brown, Molecular Spectroscopy, Oxford Chemistry Primer, 1998
Online since: June 2014
Authors: María Luisa García-Betancourt, Sofía M. Vega-Díaz, Aaron Morelos-Gómez, Nestor Perea-López, Yadira Vega-Cantu, Rodolfo Cruz-Silva, Emilio Muñoz-Sandoval, Humberto Gutiérrez, Humberto Terrones, Mauricio Terrones
Introduction It is well known that defects in carbon nanotubes (CNTs) affect the crystalline structure of the graphitic lattice.
This simple substitution can result in damage to the CNxMWNT surface and structure.
Finally, Fig. 4f presents an encapsulated metallic nanoparticle with an "arrow" morphology with an 8-nm thin structure at the one end and a triangular base in the other.
In addition, we also carefully analyzed nanoparticles with structure similar to the oval case.
Zhang, The effect of gamma ray irradiation on the structure of graphite and multi-walled carbon nanotubes, Carbon 11 (2013) In Press, Accepted Manuscript
Online since: May 2025
Authors: Edi Suharyadi, Dyah Ayu Larasati, Emi Kurnia Sari, Nugraheni Puspita Rini, Larrisa Jestha Mahardhika, Hafil Perdana Kusumah, Zurnansyah Zurnansyah, Putri Dwi Jayanti, Iska Novia Ramadhani, Nining Sumawati Asri, Julia Angel, Nurul Imani Istiqomah
Rhodamine b is very stable and non-biodegradable because it has an aromatic molecular structure [1].
In addition, it is known that the Fe3O4/rGO nanoparticles have a cubic inverse spinel structure.
Inorganic and Nano-Metal Chemistry, 1-9
Investigation on the structure and physical properties of Fe3O4/RGO nanocomposites and their photocatalytic application.
Chemistry of Materials, 27(11), 3785-3796.
Online since: September 2012
Authors: David J. Keeble
Characterization of single layer and multilayer structures is discussed.
On the basis of ion size Mn is expected to substitute at the B-site, the resulting defect chemistry will depend on the valence state adopted.
The defect chemistry of PLZT strongly supports the involvement of an increase [VPb] with increasing [La] contributing to the observed 1.026 S-increase.
Smyth, The Defect Chemistry of Metal Oxides, Oxford University Press, New York, 2000
Puska, Three real-space discretization techniques in electronic structure calculations, Phys.
Online since: January 2013
Authors: Yong Qi Liu, Rui Xiang Liu, Zhen Qiang Gao
The structure of headers is the most important factor which affects the pressure loss of TFRR.
The structure of headers is essential factor which affects the pressure loss of TFRR.
References [1] Colin Baird, Environmental Chemistry, W.H.
Online since: June 2015
Authors: Mirele Costa da Silva, Joelda Dantas, Normanda Lino de Freitas, N.C.O. Costa, D.S. Lira, A.C.F.M. Costa
Thus, this paper aims to evaluate how different milling time lengths of 15, 30, 45 and 60 minutes alter the structure and morphology of a-alumina powders synthesized by combustion reaction.
Introduction The ceramic materials belong to a traditional class of inorganic materials, and their major importance, nowadays, is attained to the fact that they permit the development of a big variety of micro and mesoporous structures, as well as a good control of the pore size distribution, characterized by high thermal and chemical resistances and low plasticity.
For the combustion to occur, the initial mixture proportion of each agent was calculated according to the valence of the reactive elements, established by the stoichiometry according to the concepts of chemistry of propellants and explosives [16].
Online since: March 2013
Authors: N. Muthukumarasamy, Periyasamy Gowthaman, Jagadeesh Deenathayalan, Manickam Saroja, Muthusamy Venkatachalam, T.S. Senthil, S. Shankar
The structure of the ZnO nano rod was studied by X-ray diffractometer and scanning electron microscopy.
Among the above methods to prepare ZnO, hydrothermal synthesis route, is an important method for wet chemistry that has been attracting material chemists’ attention.
The crystal structure and morphology of ZnO nano rods were investigated by X-ray diffraction (XRD) on XPERT-PRO X-ray diffractometer with Cu Kα radiation (λ = 1.54060 nm) at a scanning rate of 0.05°s−1in the 2θ range from 10° to 80° and scanning electron microscope (SEM) on HITACHI S-4800.
Online since: October 2025
Authors: Alona Bosiuk, Sergii Kulinich, Andrii Shkop, Oleksii Shestopalov
The structure of the formed aggregates was determined by the microscopic method.
Photographs of flocs after intensive mixing of the sludge with a mechanical stirrer for 30–40 seconds indicate the destruction of the aggregate structure and the formation of fibrous structures of the flocculant with the clay solid phase sticking to it (Fig. 5e).
It was noted that flocs with lime have a visually denser structure.
Beattie, The influence of polymer chemistry on adsorption and flocculation of talc suspensions.
Raiko, Study of the strength of flocculated structures of polydispersed coal suspensions.