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Online since: February 2022
Authors: Vladimir N. Malikov, Alexey V. Ishkov, Nikolay D. Tihonskii
In addition to stabilization, the polymer matrix also provides good processability, mechanical, electrical and optical properties, whereas the matrix-filler interaction can impart unique properties and have a structuring effect, which makes it possible to control the interaction between nanoparticles [1].
Due to the rapid development of electronics and optoelectronics, an urgent task now is to obtain binary and multilayer films of the Ni/Al system, synthesize intermetallic compounds in them, and study the structure of the films obtained.
Also, specific processes and phenomena are observed in such thin films, that are absent in macro objects, for example, the microstructure of a film may differ significantly from the structure of a bulk material of the same composition, and the properties of thin films are largely determined by their morphology [19].
They, in turn, initiate the appearance of a useful signal about the structure of the substance in the measuring coil.
Synthesis, structure and properties of nanocomposites based on poly-para-xylylene, nickel and iron.
Due to the rapid development of electronics and optoelectronics, an urgent task now is to obtain binary and multilayer films of the Ni/Al system, synthesize intermetallic compounds in them, and study the structure of the films obtained.
Also, specific processes and phenomena are observed in such thin films, that are absent in macro objects, for example, the microstructure of a film may differ significantly from the structure of a bulk material of the same composition, and the properties of thin films are largely determined by their morphology [19].
They, in turn, initiate the appearance of a useful signal about the structure of the substance in the measuring coil.
Synthesis, structure and properties of nanocomposites based on poly-para-xylylene, nickel and iron.
Online since: February 2018
Authors: Xiao Li Xi, Jia Peng Chen, Li Wen Ma, Ming Xing Cao
In order to reuse the components of the spent catalyst as much as possible, it is necessary to preserve the original composition and crystal structure of the catalyst.
However, the process will inevitably introduce changes in the structure of the catalyst, but also to some extent affected the recovery and reuse of the catalyst.
The phase structure and chemical composition of the residue are studied by X-ray diffraction (XRD).
Structure of molybdenum-phosphate glasses by X-ray photoelectron spectroscopy (XPS).
Journal of Industrial & Engineering Chemistry, 28 (2015) 73-77
However, the process will inevitably introduce changes in the structure of the catalyst, but also to some extent affected the recovery and reuse of the catalyst.
The phase structure and chemical composition of the residue are studied by X-ray diffraction (XRD).
Structure of molybdenum-phosphate glasses by X-ray photoelectron spectroscopy (XPS).
Journal of Industrial & Engineering Chemistry, 28 (2015) 73-77
Online since: July 2012
Authors: Xing Xing Gu, Jian Rong Chen, Shu Xian Zhong, Jun Wu, Ling Ling Luo
Progress of Mesoporous Materials for the Adsorption of Cr(VI) in Wastewater
Xingxing Gu1, a, Lingling Luo1, b, Jun Wu1, c, Shuxian Zhong1, d,
Jianrong Chen1, 2, e*
1College of chemistry and life sciences, Zhejiang normal university, Jinhua, China
2College of geography and environmental sciences, Zhejiang normal university, Jinhua, China
agarygu2010@163.com, b334668199@qq.com, c695909017@qq.com, dshuxian@zjnu.cn, ecjr@zjnu.cn
Keywords: mesoporous materials; Cr(VI); adsorption; wastewater
Abstract.
Although the non-silicon-based mesoporous materials are poor in terms of thermal stability and their pore structures are readily collapsed after calcination, they are expected to open the new fields in utilizing mesoporous materials with variable valences.
Among the M41S family of mesoporous materials, MCM-41 (two-dimensional hexagonal structure) and MCM-48 (three-dimensional cubic structure) are mainly used in heavy metal ions adsorption.
In recent years, M41S family of mesoporous materials, such as MCM-41 [19], MCM-48 [20], doped MCM-41 [21~25], modified MCM-41 [25~27,29], have been accepted as one of the appropriate adsorbents for the removal of Cr(VI)from wastewater due to their unique mesoporous pore structure characterized by high surface areas and pore volumes (Table 1).
It is more important to focus and develop the applied research of mesoporous materials with highly ordered pore structure and high stability.
Although the non-silicon-based mesoporous materials are poor in terms of thermal stability and their pore structures are readily collapsed after calcination, they are expected to open the new fields in utilizing mesoporous materials with variable valences.
Among the M41S family of mesoporous materials, MCM-41 (two-dimensional hexagonal structure) and MCM-48 (three-dimensional cubic structure) are mainly used in heavy metal ions adsorption.
In recent years, M41S family of mesoporous materials, such as MCM-41 [19], MCM-48 [20], doped MCM-41 [21~25], modified MCM-41 [25~27,29], have been accepted as one of the appropriate adsorbents for the removal of Cr(VI)from wastewater due to their unique mesoporous pore structure characterized by high surface areas and pore volumes (Table 1).
It is more important to focus and develop the applied research of mesoporous materials with highly ordered pore structure and high stability.
Online since: June 2015
Authors: Mohamad Hafiz Mamat, Mohamad Rusop Mahmood, Norhayati Hashim, Azmi Mohamed, Suriani Abu Bakar, Illyas Md Isa, Azlan Kamari, Abdul Rahman Mohamed, Suhufa Alfarisa
Unfortunately, many amorphous and agglomerate structures were seen through the scanning electron microscopy (SEM) images of the sample produced.
SEM image showed that CNTs produced were short, thick and the structure tends to agglomerate.
At high temperature conditions, banana peel activated carbon – mineral oil mixture was decomposed and formed the graphitic structure of carbon.
Difference structure of waste engine oil with another waste natural oil may cause this happened.
L’vov, Carbon crooked nanotube layers of polyethylene: Synthesis, structure and electron emission.
SEM image showed that CNTs produced were short, thick and the structure tends to agglomerate.
At high temperature conditions, banana peel activated carbon – mineral oil mixture was decomposed and formed the graphitic structure of carbon.
Difference structure of waste engine oil with another waste natural oil may cause this happened.
L’vov, Carbon crooked nanotube layers of polyethylene: Synthesis, structure and electron emission.
Online since: February 2024
Authors: Yuli Panca Asmara, Firda Herlina, Agus Geter Edy Sutjipto
Amine-based film-forming corrosion inhibitors have an organic structure of electrically charged chains, therefore, are not completely soluble in hydrocarbons or in the aqueous phase.
An inorganic inhibitor refers to a special substance made up of minerals or chemicals that are not made of carbon-based structures.
In the corrosive environment of oil and gas production, CO2 is the main component that significantly contribute to damages metallic structures.
They are utilized in various sectors, including oil and gas, manufacturing, construction, and water treatment, to protect metal structures, equipment, and components from corrosion.
Journal of Industrial and Engineering Chemistry, 36, 54-61
An inorganic inhibitor refers to a special substance made up of minerals or chemicals that are not made of carbon-based structures.
In the corrosive environment of oil and gas production, CO2 is the main component that significantly contribute to damages metallic structures.
They are utilized in various sectors, including oil and gas, manufacturing, construction, and water treatment, to protect metal structures, equipment, and components from corrosion.
Journal of Industrial and Engineering Chemistry, 36, 54-61
Online since: October 2014
Authors: Stuart Hampshire, Faheemuddin Patel, Tahar Laoui, Moath Mohammad Al-Malki, Akolade Idris Bakare, Sadaqat Ali, Raja Muhammad Awais Khan, Abbas Hakeem
A small amount of an elongated structure can be observed.
Jack, The significance of structure and phase equilibriums in the development of silicon nitride and Sialon ceramics, Science of Ceramics, 11 (1981) 125-142
Hampshire, Silicon nitride ceramics – review of structure, processing and properties, Journal of Achievements in Materials and Manufacturing Engineering, 24 (2007) 43-50
Nygren, Kinetic aspects of superfast consolidation of silicon nitride based ceramics by spark plasma sintering, Journal of Materials Chemistry, 11 (2001) 204-207
Nygren, Conversion from nano- to micron-sized structures: experimental observations, Journal of the European Ceramic Society, 24 (2004) 3447-3452
Jack, The significance of structure and phase equilibriums in the development of silicon nitride and Sialon ceramics, Science of Ceramics, 11 (1981) 125-142
Hampshire, Silicon nitride ceramics – review of structure, processing and properties, Journal of Achievements in Materials and Manufacturing Engineering, 24 (2007) 43-50
Nygren, Kinetic aspects of superfast consolidation of silicon nitride based ceramics by spark plasma sintering, Journal of Materials Chemistry, 11 (2001) 204-207
Nygren, Conversion from nano- to micron-sized structures: experimental observations, Journal of the European Ceramic Society, 24 (2004) 3447-3452
Online since: June 2011
Authors: Harvey N. Rutt, Muhamad Mat Salleh, M.N. Dalimin, Saafie Salleh
The temperature of the substrate plays a vital role in determining the structure of an amorphous or polycrystalline for the thermally deposited thin films.
In general, covalently bonded materials such as semiconductors produced either amorphous structures at low substrate temperatures or polycrystalline structures at higher temperatures or epitaxial single crystal structures under the same conditions of high temperature deposition [1].
The propagation loss is related to the structure of the waveguide, and in turn is affected by substrate temperature [2].
These peaks were actually the grain structures that were formed through the enlargement of nucleus during film growth.
Pal, Surface morphology and optical properties of ZnS thin films, Materials Chemistry and Physics, Vol. 39 (1995), 167-173
In general, covalently bonded materials such as semiconductors produced either amorphous structures at low substrate temperatures or polycrystalline structures at higher temperatures or epitaxial single crystal structures under the same conditions of high temperature deposition [1].
The propagation loss is related to the structure of the waveguide, and in turn is affected by substrate temperature [2].
These peaks were actually the grain structures that were formed through the enlargement of nucleus during film growth.
Pal, Surface morphology and optical properties of ZnS thin films, Materials Chemistry and Physics, Vol. 39 (1995), 167-173
Online since: May 2012
Authors: Su Hua Chen, Li An Wei, Qiu Gen Zhang, Wen Qing Shen
The healthy and orderly development of low-carbon economy depends on the adjustment of industrial structure, energy structure and consumption structure.
Adjust and Optimize Industrial Structure to Build Low-carbon Industrial System Currently, the industrialization level is relatively lower, the industrial development model has not yet stereotypes, and industrial structure is in the process of evolution and optimization in Jiangxi Province [4].
Therefore, it has the advantage of development low-carbon economy in Jiangxi Province because of less resistance of adjusting and optimizing industrial structure.
Second, it should adjust industrial structure, product structure and energy consumption structure and be focus on optimizing internal structure of the secondary industry.
Optimize Energy Use Structure to Develop Low-carbon Clean Energy The clean energy of low-carbon and hydrogen-rich is the basic guarantee of a low-carbon economy [5].
Adjust and Optimize Industrial Structure to Build Low-carbon Industrial System Currently, the industrialization level is relatively lower, the industrial development model has not yet stereotypes, and industrial structure is in the process of evolution and optimization in Jiangxi Province [4].
Therefore, it has the advantage of development low-carbon economy in Jiangxi Province because of less resistance of adjusting and optimizing industrial structure.
Second, it should adjust industrial structure, product structure and energy consumption structure and be focus on optimizing internal structure of the secondary industry.
Optimize Energy Use Structure to Develop Low-carbon Clean Energy The clean energy of low-carbon and hydrogen-rich is the basic guarantee of a low-carbon economy [5].
Online since: October 2006
Authors: Evgeny N. Selivanov, R.I. Gulyaeva, N.I. Selmenskikh, V.M. Chumarev
The available data on
the composition and structure of these compounds are contradictory.
The purpose of this work is investigation of oxysulphides Ca3Fe4S3O6 and CaZnSO unit cell thermal expansion and structure influencing chemism and solid-phase oxidation kinetics in terms of air heating.
The purpose of this work was to refine the composition and structure of the iron calcium oxysulfides in question, to determine their lattice parameters, and to investigate their thermal properties in an inert and air atmosphere.
Structure influence on oxysulfides oxidation phase forming is detected.
Selivanov et al.: Doklady Chemistry Vol. 393, No.1-3 (2003), p. 255 [11] A.
The purpose of this work is investigation of oxysulphides Ca3Fe4S3O6 and CaZnSO unit cell thermal expansion and structure influencing chemism and solid-phase oxidation kinetics in terms of air heating.
The purpose of this work was to refine the composition and structure of the iron calcium oxysulfides in question, to determine their lattice parameters, and to investigate their thermal properties in an inert and air atmosphere.
Structure influence on oxysulfides oxidation phase forming is detected.
Selivanov et al.: Doklady Chemistry Vol. 393, No.1-3 (2003), p. 255 [11] A.
Online since: November 2014
Authors: F.N. Oktar, H. Gokce, O. Gunduz, Y.M. Sahin, D. Agaogullari, I.G. Turner, L.S. Ozyegin, B. Ben-Nissan
., Bath BA2 7AY, UK
8Bayramoglu, Kocaeli, Turkey
9Dept. of Chemistry and Forensic Sciences, The University of Technology, Sydney, Australia
*foktar@marmara.edu.tr (first corresponding author)
**ymugesahin@arel.edu.tr (second corresponding author)
Keywords: Calcite, Marine Creatures, Hydroxyapatite, Nano-bioceramics, Mechano-chemical Conversion
Abstract.
Calcination (around 800-850°C) of various bones (human, sheep, bovine) and tooth structures has been shown to be interesting and promising.
The source material which was generally used for bioceramic production was calcium carbonate containing structures of marine organisms (i.e. corals [6-7,15], sea snail shells [10,12-14], mussel shells [11], sea urchin shells [8-10], cuttle fish bones [16] and several land organisms (land snail shells [17]).
The aim of this study was to produce nano-bioceramic structures from the giant purple barnacle (Megabalanus tintinnabulum) utilising a simple technique of mechano-chemical conversion method involving hot-plating.
Some of these small clusters could be seen both on and within the larger spherical structures (shown with white thick arrows).
Calcination (around 800-850°C) of various bones (human, sheep, bovine) and tooth structures has been shown to be interesting and promising.
The source material which was generally used for bioceramic production was calcium carbonate containing structures of marine organisms (i.e. corals [6-7,15], sea snail shells [10,12-14], mussel shells [11], sea urchin shells [8-10], cuttle fish bones [16] and several land organisms (land snail shells [17]).
The aim of this study was to produce nano-bioceramic structures from the giant purple barnacle (Megabalanus tintinnabulum) utilising a simple technique of mechano-chemical conversion method involving hot-plating.
Some of these small clusters could be seen both on and within the larger spherical structures (shown with white thick arrows).