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Online since: March 2009
Authors: S.P. Wilks, Michal Lodzinski, A. Castaing, S. Batcup, P. Igic, R.S. Balmer, C.J.H. Wort, R. Lang, Owen James Guy
The electrical performance of metal-diamond contacts has been investigated using current-voltage I(V) characterization of circular transmission line model (CTLM) test structures.
By modifying the diamond surface chemistry, the contact behavior (Ohmic or Schottky) can be controlled.
Photolithography was then used to pattern the deposited metals into CTLM structures for specific contact resistance measurements.
The CTLM structures were electrically characterised by I-V measurements in the range -5V to 5V using an Hewlett Packard 4142b measurement kit and a Karl Suss probe station, at room temperature.
Apart from performing electrical measurements on CTLM test structures, X-ray Photoelectron Spectroscopy (XPS) on single crystal CVD diamond was performed.
Online since: November 2013
Authors: Najmeh Mirrezaie, Manochehr Nikazar, Mehrdad Hasan Zadeh
FE-SEM determined Fe3O4/PPy nanocomposite spheres with well-bounded core/shell structures were successfully synthesized; the Fe3O4 core was well wrapped by the coating layer.
The crystalline structures of the nanoparticles were identified with XRD (Fig. 2).
ATR-FTIR spectra of PPy/ Fe3O4) The structure of the PPy/Fe3O4 nanocomposite was characterized by attenuated total reflectance (ATR) Fourier transform infrared (FTIR) spectroscopy.
The dependence of Cr(VI) on the pH can be explained from the perspective of surface chemistry in an aqueous phase.
Chemistry of Materials 18 (2006) 5273–5278
Online since: May 2021
Authors: Ildar Shammazov, Vladimir Voronov, Aleksey Shalygin, Ekaterina Karyakina
The mechanical approach is based on the fact that each material has a certain maximum stress, called limiting stress, taken as a strength criterion at which the structure loses its structural stability and collapses.
Force type loads are understood as those that arise due to the weight of the pipeline with the product and structures; internal pressure, surrounding ground pressure.
Chemistry for Sustainable Development, 18 (2010) 301-314
Their Correlation with Chemical Structure; their Numerical Estimation and Prediction from Additive Group Contributions. 4th Edition.
Shershnev, Chemistry and physics of polymers.
Online since: July 2019
Authors: Cynthia L. Radiman, Rino R. Mukti, Grandprix Thomryes Marth Kadja, Tita Puspitasari, Moh. Mualliful Ilmi, Nadya Nurdini, Darmawan Darwis
Kadja1,a* 1Division of Inorganic and Physical Chemistry, Institut Teknologi Bandung, Jl.
This shows the preference of Pb2+ adsorption onto clinoptilolite which correlates to its pore structure.
Prins, J.A. van Bokhoven, Catalytic activity of Brønsted acid sites in zeolites: Intrinsic activity, rate-limiting step, and influence of the local structure of the acid sites, J.
[11] Information on International Zeolite Association database, http://asia.iza-structure.org/IZA-SC/ftc_table.php [12] K.
Yoder, Ionic compounds: Applications of chemistry to mineralogy, John Wiley & Sons, New Jersey, 2006
Online since: October 2011
Authors: Guang Xiu Cao, Tian Liu, Qing Hong Zhang, Hong Zhi Wang
Synthesis and Characterization of Nanometer Copper Ferrite by Auto-combustion Guangxiu Caoa*, Tian Liuc , Qinghong Zhangb, and Hongzhi Wangb a Department of Chemistry, Shangqiu Normal University, Shangqiu 476000, People’s Republic of China b Engineering Research Center of Advanced Glasses Manufacturing Technology, College of Materials Science and Engineering, Donghua University, Shanghai 201620, People’s Republic of China c Department of Chemistry, East china Normal University, Shanghai 200062, People’s Republic of China aemail: guangxiucao@163.com, bemail: zhangqh@dhu.edu.cn or wanghz@dhu.edu.cn , cemail: liutian377@126.com Keywords: auto-combustion; malic acid; characterization; nanometer copper ferrite Abstract.
Gingasu and co-workers [14] synthesized the nanosized CuFe2O4 with tetragonal structure by combustion reaction using urea as fuel and ligand.
It is well known that under the different pH value, the carboxyl group or hydroxyl group existed in the malic acid ligand can easily combine with metal element, especially, iron and copper, which can form five or six membered ring structures, and construct the stable supramolecular network structure.
The formation of the stable supramolecular network structure can stabilize the gel after drying.
Patron et al [13] have synthesized CuFe2O4 with tetragonal structure using glycine as ligands, which exhibited a small crystallite sizes in 18-29 nm.
Online since: July 2019
Authors: Wen Ming Zhang, Mu Wei Ji, Jin Wang
"Syntheses of Water-Soluble Octahedral, Truncated Octahedral, and Cubic Pt–Ni Nanocrystals and Their Structure–Activity Study in Model Hydrogenation Reactions." 
Chemistry of Materials, 2003, 15(6):1353-1357
Structures of ultrathin copper nanowires encapsulated in carbon nanotubes[J].
Electroreduction of Carbon Monoxide Over a Copper Nanocube Catalyst: Surface Structure and pH Dependence on Selectivity[J].Chemcatchem,2016, 8(6):1119-1124
Industrial & Engineering Chemistry Research, 2014, 53(46):17976-17980
Online since: April 2024
Authors: Tebogo Mashifana, Euricia Mkhonto, Nastassia Thandiwe Sithole
Figure 1 shows the morphological structure obtained using SEM of the FA used in this study.
High concentrations result in a weak structure and high viscosity, hindering depolymerization of FA particles [22].
Control of the alumino-silico-phosphate geopolymers properties and structures by the phosphorus concentration. 
Materials Chemistry and Physics, 258, p.123867
Understanding the binder chemistry, microstructure, and physical properties of volcanic ash phosphate geopolymer binder. 
Online since: June 2014
Authors: Chun Hu Li, Ying Fei Hou, Ya Ya Gu, Ning Guo
In addition the compact structure of immobilized balls could lead to the slow diffusion.
On the other hand, the lower concentration of embedding carriers results in the lower viscosity and porous structure promoting diffusion.
It is found that with the lower concentration of SA, the structure of granulation is looser and the pore size is larger, which reduces the fixation strength of microorganisms as well as the UP-3 cells and makes degradation affected by biochemical reaction.
With the higher concentration of SA, the structure of granulation becomes much compacter while the desulphurization performance is reduced.
Biochemical Engineering Fundamentals, Chemistry Industry, Press Beijing,1999, pp.104-107 [10] X.
Online since: June 2022
Authors: Ali H. Jawab Al Taie, Siti Norasmah Surip, N.A.A Nor Azam
The three-ply face mask is generally made up of a multi-layered structure by covering with non-woven bonded fabric on both sides.
Besides that, for silt or clay soils, OM is added to improve drainage and increase the soil's structure (aggregation) [19].
Polypropylene structure alterations after 5 years of natural degradation in a waste landfill.
Journal of Agricultural Chemistry and Environment, 05(01), 23–34
Journal of Agricultural Chemistry and Environment, 05(01), 23–34.
Online since: February 2011
Authors: Jie Chen Mu, Li Peng Zhang
For the present cell structure anode plunges the electrolyte molten salt in large measure, the electrolysis temperature is 950~970℃, small parts of anode which connect with steel rod are above electrolyte molten salt.
Obviously , the electrical conductivity are improved by the improving material structure.
Because of the special structure of anode, with electrolysis compact and electric oxide membrane is formed on the surface of anode.
References [1] Zhuxian Qiu: Aluminium Metallurgical Physical Chemistry.
Duruz and V. de Nora: Light Metals. 1999p.347 [10] Mianceng Su: Introduction to Solid Chemistry.( China Peking University Press, China 1987)