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Online since: March 2026
Authors: Mohd Hasmizam Razali, Alina Irwana Muhamad A'srai, Nur Ain Atisya C.M. Khairuddin, Nor Adibah Roslan
The heterojunction structure promoted effective charge separation, and further enhanced visible-light response.
In contrast, Figure 3(b) illustrates the structure of pristine g-C3N4, characterized by irregular, overlapping plate-like formations.
The FeWO4/g-C3N4 composite retains the wrinkled nanoflake morphology of g-C3N4, featuring a porous structure resulting from the decomposition and foaming effects of NH4Cl during synthesis.
Journal of Materials Chemistry, 19(29), 5689–5695
Journal of Materials Chemistry, 19(29), 5689–5695.
In contrast, Figure 3(b) illustrates the structure of pristine g-C3N4, characterized by irregular, overlapping plate-like formations.
The FeWO4/g-C3N4 composite retains the wrinkled nanoflake morphology of g-C3N4, featuring a porous structure resulting from the decomposition and foaming effects of NH4Cl during synthesis.
Journal of Materials Chemistry, 19(29), 5689–5695
Journal of Materials Chemistry, 19(29), 5689–5695.
Online since: December 2012
Authors: M. Sivabharathy, S. Pandian, R. Legadevi, A. Senthil Kumar, Chandra Prakash, Vasant Naidu, S.K.A. Ahamed Kandu Sahib
The peaks (1,1,0), (2,2,0), (2,2,1), (3,3,1), (4,0,0) and (4,2,2) conform the formation of cubic spinel structure.
The lattice constant a (nm) of spinel structure have been calculated using Eq. (1).
[3] A.K.M.A.Hossain, T.S.Biswas, T.Yanagida, H.Tanaka, H.Tabata, T.Kawai, Investigation of Structural and Magnetic Properties of Polycrystalline Ni0.50Zn0.50-xMgxFe2O4 Materials, Chemistry and Physics, 120 (2010) 461-7
Solids, 29 -2, (2006) [9] Y.Tsur, Crystal and Defect Chemistry of Rare Earth Cations in BaTiO3, Journal of Electroceramics, 7 (2001) 25–34
[12] S.K.Pradhan et al, Microstructure Characterization and Cation Distribution of Nanocrystalline Magnesium Ferrite Prepared by Ball Milling, Materials Chemistry and Physics, 93 (2005) 224–30
The lattice constant a (nm) of spinel structure have been calculated using Eq. (1).
[3] A.K.M.A.Hossain, T.S.Biswas, T.Yanagida, H.Tanaka, H.Tabata, T.Kawai, Investigation of Structural and Magnetic Properties of Polycrystalline Ni0.50Zn0.50-xMgxFe2O4 Materials, Chemistry and Physics, 120 (2010) 461-7
Solids, 29 -2, (2006) [9] Y.Tsur, Crystal and Defect Chemistry of Rare Earth Cations in BaTiO3, Journal of Electroceramics, 7 (2001) 25–34
[12] S.K.Pradhan et al, Microstructure Characterization and Cation Distribution of Nanocrystalline Magnesium Ferrite Prepared by Ball Milling, Materials Chemistry and Physics, 93 (2005) 224–30
A Study on Factors Influencing the Efficiency of Electrochemical Desalination in Reinforced Concrete
Online since: May 2014
Authors: Da Jing Fang, Er Bu Shen, Ya Ping Wang, Jun Huang
Using electrochemical methods and analytical chemistry methods etc. depth studied efficiency of electrochemical desalination on different energizing time, current density.
Laboratory test of Electroosmosis anti-corruption in hydraulic reinforced concrete structures.
Laboratory test of Electroosmosis anti-corruption in hydraulic reinforced concrete structures.
Online since: April 2017
Authors: Fernando José Silva, E.V.M. Carrasco, White J. Santos, Aldo G. Magalhães, J.N.R. Mantilla, M.A.P. Rezende, E.M. Piancastelli
In this study involving cementitious matrix composites, the influence of the water/cement (w/c) ratio variation (0.48, 0.60, 0.70 and 0.75) was analyzed in its open pore structure and in the carbonation front advancing.
Taylor, Cement Chemistry, second ed., Thomas Telford, London, 1997
Hewlett, Lea’s Chemistry of Cement and Concrete, fifth ed., Elsevier, Oxford, 2008
Vayenas, Effect of composition, environmental factors and cement-lime mortar coating on concrete carbonation, Materials and Structures. 25(5) (1992) 293-304
Vitaliani, Investigation and numerical modeling of carbonation process in reinforced concrete structures, Part I: Theorical formulation, Cem.
Taylor, Cement Chemistry, second ed., Thomas Telford, London, 1997
Hewlett, Lea’s Chemistry of Cement and Concrete, fifth ed., Elsevier, Oxford, 2008
Vayenas, Effect of composition, environmental factors and cement-lime mortar coating on concrete carbonation, Materials and Structures. 25(5) (1992) 293-304
Vitaliani, Investigation and numerical modeling of carbonation process in reinforced concrete structures, Part I: Theorical formulation, Cem.
Online since: April 2016
Authors: Qiu Hong Zhang, Fang Ming Xiao, Hai Yong Ni, Ling Li Wang
The influences of the various fluxes on the crystal structure, morphology and luminescent properties of CaAl12O19:Mn4+ phosphors were studied.
The effects of the fluxes on the crystal structure, morphology and luminescent properties of CaAl12O19:Mn4+ phosphors were investigated.
The effects of the fluxes on the crystal structure, morphology and luminescent properties were studied.
Materials Chemistry and Physics, 2011, 129: 955-960
Materials Chemistry and Physics, 2007, 101: 163-169
The effects of the fluxes on the crystal structure, morphology and luminescent properties of CaAl12O19:Mn4+ phosphors were investigated.
The effects of the fluxes on the crystal structure, morphology and luminescent properties were studied.
Materials Chemistry and Physics, 2011, 129: 955-960
Materials Chemistry and Physics, 2007, 101: 163-169
Online since: February 2019
Authors: L.L. Maslennikova, N.A. Babak, I.A. Naginskii
Modern Building Materials Using Waste from the Dismantling of Buildings and Structures
L.L.
Naginskii1c 1Department “Engineering chemistry and science” Emperor Alexander I St.Petersburg State Transport University. 190031, Saint Petersburg, 9 Moskovsky pr.
For research of waste structure and synthesizable materials structure X-ray phase, differential-thermal methods of analysis and grain size measurements were used.
Taking into account earlier studies at the “Engineering Chemistry and Natural Sciences” Department [18 – 25], in the production of ceramic bricks for replacement of a natural emaciating material (quartz sand) we used a waste, secondary crushed stone screening.
M., Geoecological reserve of technologies, materials and structures in construction using industrial mineral waste SPb: PSTU. (2011)
Naginskii1c 1Department “Engineering chemistry and science” Emperor Alexander I St.Petersburg State Transport University. 190031, Saint Petersburg, 9 Moskovsky pr.
For research of waste structure and synthesizable materials structure X-ray phase, differential-thermal methods of analysis and grain size measurements were used.
Taking into account earlier studies at the “Engineering Chemistry and Natural Sciences” Department [18 – 25], in the production of ceramic bricks for replacement of a natural emaciating material (quartz sand) we used a waste, secondary crushed stone screening.
M., Geoecological reserve of technologies, materials and structures in construction using industrial mineral waste SPb: PSTU. (2011)
Online since: February 2018
Authors: Māris Turks, Vilnis Peipiņš, Krista Suta
Study on Synthesis of N-Protected 2-Triazolyl Azetidines
Vilnis Peipiņša, Krista Sutab, Māris Turksc*
Faculty of Materials Science and Applied Chemistry, Riga Technical University,
P.
Azetidine derivatives are interesting scaffolds in terms of medicinal chemistry.
We suggest structures of oxazinone 15 and acyclic amine 16 as the degradation products (Fig. 3).
Burnett, Synthesis and structure-activity relationships of aminoalkylazetidines as ORL1 receptor ligands, Bioorganic Med.
Azetidine derivatives are interesting scaffolds in terms of medicinal chemistry.
We suggest structures of oxazinone 15 and acyclic amine 16 as the degradation products (Fig. 3).
Burnett, Synthesis and structure-activity relationships of aminoalkylazetidines as ORL1 receptor ligands, Bioorganic Med.
Online since: November 2013
Authors: Saeed Hesaraki
The results showed a porous structure with total porosity of 75% and pore diameter ranging 50-150 µm and compressive strength of 5 ± 1 Mpa.
Some of the above mentioned fabrication techniques are not sufficiently suitable to control scaffold structure to modulate mechanical properties.
The produced scaffold seems to be similar to bone phase in terms of crystallite size and chemistry and so, its improved biological performance is suggested.
It resembles inorganic phase of bones in terms of chemistry and crystallinity and its compressive strength is comparable with cancellous bone.
Solutions able to reproduce in vivo surface-structure changes in bioactive glass-ceramic A-W.
Some of the above mentioned fabrication techniques are not sufficiently suitable to control scaffold structure to modulate mechanical properties.
The produced scaffold seems to be similar to bone phase in terms of crystallite size and chemistry and so, its improved biological performance is suggested.
It resembles inorganic phase of bones in terms of chemistry and crystallinity and its compressive strength is comparable with cancellous bone.
Solutions able to reproduce in vivo surface-structure changes in bioactive glass-ceramic A-W.
Online since: September 2008
Authors: Niccolò Piacentini, Danilo Demarchi, Pierluigi Civera, Marco Knaflitz
Dies mm in size, made of a micromachined glass-silicon-glass triple stack, host two
new kinds of multiple micro-counters, suitable to investigate the feasibility of blood cell differential
analysis by means of Coulter principle in a monolithic lab-on-a-chip, which integrates a
microfluidic network, sensing metal electrodes and light-guiding structures.
In this field MEMS provide numerous advantages to the user, ranging from reduced consumptions (the size of microfluidic components is directly compatible with the very small volumes typical of analytical chemistry and laboratory tests, with respect to both samples and other chemicals), to better analytical performances (miniaturization makes easier to meet some physics/chemistry assumptions, such as distribution homogeneity), low dead volumes for multi-functional interconnections (all the steps of a given protocol can be cascaded), high-throughput parallelization, and scaling (microsystem technology is intrinsically oriented to batch fabrication and mass-production), with the consequent lowering of cost per single chip.
MultiMEMS process is based on some key and well-established technologies, among which: • Electrochemical etch-stop technique, allowing a precise control of mass and diaphragm thickness; • Reactive Ion Etching (RIE) for the release of masses or moving structures; • Patented buried conductor crossing of anodically bonded areas; • Epitaxial layer (3 micrometers thick) for monocrystalline thin diaphragms and beams; • Sealed and/or vented cavities by triple-stack glass-silicon-glass anodic bonding (top glass, silicon, bottom glass).
Chip #1: an integrated device, featuring microfluidics (three parallel Coulter channels with central narrowing), an electrical network (electrodes and bonding pads), and light-guiding structures (thick membranes).
The described structure allows some innovative working setups.
In this field MEMS provide numerous advantages to the user, ranging from reduced consumptions (the size of microfluidic components is directly compatible with the very small volumes typical of analytical chemistry and laboratory tests, with respect to both samples and other chemicals), to better analytical performances (miniaturization makes easier to meet some physics/chemistry assumptions, such as distribution homogeneity), low dead volumes for multi-functional interconnections (all the steps of a given protocol can be cascaded), high-throughput parallelization, and scaling (microsystem technology is intrinsically oriented to batch fabrication and mass-production), with the consequent lowering of cost per single chip.
MultiMEMS process is based on some key and well-established technologies, among which: • Electrochemical etch-stop technique, allowing a precise control of mass and diaphragm thickness; • Reactive Ion Etching (RIE) for the release of masses or moving structures; • Patented buried conductor crossing of anodically bonded areas; • Epitaxial layer (3 micrometers thick) for monocrystalline thin diaphragms and beams; • Sealed and/or vented cavities by triple-stack glass-silicon-glass anodic bonding (top glass, silicon, bottom glass).
Chip #1: an integrated device, featuring microfluidics (three parallel Coulter channels with central narrowing), an electrical network (electrodes and bonding pads), and light-guiding structures (thick membranes).
The described structure allows some innovative working setups.
Online since: November 2013
Authors: R. Poh, Mohamad Rusop, M.Z. Mazatulikhma, Ismail Nurulhuda
Helical CNTs were observed at 700°C, webs of hollow tubes at 800 °C, and long tube structures at 900 °C based on FESEM.
The unique structure and strength of carbon nanotubes provided the potential for it to be used in many applications.
Lee, Electronic-structure engineering of carbon nanotubes, NANO: Brief Reports and Reviews, 1 (2006)115-138
Harris, A review of carbon nanotube synthesis via fluidized-bed chemical vapor deposition, Industrial & engineering chemistry research, 46 (2007) 997-1012
Park, Growth and structure of carbon nanotubes produced by thermal chemical vapor deposition, Carbon, 39 (2001) 1891-1896
The unique structure and strength of carbon nanotubes provided the potential for it to be used in many applications.
Lee, Electronic-structure engineering of carbon nanotubes, NANO: Brief Reports and Reviews, 1 (2006)115-138
Harris, A review of carbon nanotube synthesis via fluidized-bed chemical vapor deposition, Industrial & engineering chemistry research, 46 (2007) 997-1012
Park, Growth and structure of carbon nanotubes produced by thermal chemical vapor deposition, Carbon, 39 (2001) 1891-1896