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Online since: August 2013
Authors: Feng Li, He Bian, Hui Zhang
Preparation of TiO2/CNT Composites and Effect of CNT's Structure on Morphology of Nano-TiO2
Feng Li 1, a, He Bian 2, b , Hui Zhang 1, c
1 Binzhou Key laboratory of environmental engineering technology, Institute of Binzhou environmental protection of Shandong province ,Binzhou, 256600, China;
2 Binzhou Key laboratory of material chemistry, Department of chemistry and Chemical Engineering,Binzhou university, Binzhou, 256603, China
alifengbgs@126.com, bbianhe_2009@sina.com, cbzkys@163.com
Keywords: sol-gel method;TiO2/CNT composite;structure;morphology;effect
Abstract.
Their structure and morphology were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM).
The results indicate that different carbon nanotubes and nanofiber have notable influences on the morphology and structure of TiO2 nanocrystals.
The aim is to investigate the effects of carriers on the morphology and structure of the composites.
Multi-walled CNT, Carboxylic CNT and hydroxylating CNT with the diameter of 20-30 nm were obtained from Chengdu Organic Chemistry Ltd., Chinese Academy of Sciences.
Their structure and morphology were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM).
The results indicate that different carbon nanotubes and nanofiber have notable influences on the morphology and structure of TiO2 nanocrystals.
The aim is to investigate the effects of carriers on the morphology and structure of the composites.
Multi-walled CNT, Carboxylic CNT and hydroxylating CNT with the diameter of 20-30 nm were obtained from Chengdu Organic Chemistry Ltd., Chinese Academy of Sciences.
Online since: August 2009
Authors: Li Li Li, Xue Feng Wang, Shao Yi Wu, Yue Xia Hu
The calculated spin Hamiltonian
parameters based upon the above defect structure show good agreement with the observed values.
Second, the defect structure of the impurity center was not quantitatively correlated to the studies of the spin Hamiltonian parameters.
In addition, information about the defect structure of this center has not been acquired yet.
Considering that the EPR behaviours and the local structure for Pt3+ in MgO would be helpful to understand the properties of 5d 7 ions in this material (or similar oxides), further investigations on the EPR spectra and the defect structure for the tetragonal Pt3+ center in MgO are of fundamental significance.
The dipolar hyperfine structure parameter is P ≈ 425 × 10−4 cm−1 for Pt3+ [30].
Second, the defect structure of the impurity center was not quantitatively correlated to the studies of the spin Hamiltonian parameters.
In addition, information about the defect structure of this center has not been acquired yet.
Considering that the EPR behaviours and the local structure for Pt3+ in MgO would be helpful to understand the properties of 5d 7 ions in this material (or similar oxides), further investigations on the EPR spectra and the defect structure for the tetragonal Pt3+ center in MgO are of fundamental significance.
The dipolar hyperfine structure parameter is P ≈ 425 × 10−4 cm−1 for Pt3+ [30].
Online since: November 2011
Authors: D. Porterat, I. Lopes, A. Gohier, P. Chenevier, G. Deniau, S. Palacin, M. Mayne-L’Hermite, C. Reynaud
We will point out that CNT crystalline structure play a crucial role on the sensor sensitivity by illustrating it for the detection of chlorine, and we will present the results on NH3 and HCl detection with functionalized-CNT.
Results and discussion Sensor calibration and Effect of CNT crystalline structure on sensor sensitivity.
We investigated polyacrylic acid (PAA) coated CNT for NH3 detection and CNT-functionalized with poly(aminophenylene) using a process based on the diazonium chemistry [12] for HCl detection.
Gabriel, The Journal of Physical Chemistry B 110 (2006) 21014-21020
Ramaprabhu, The Journal of Physical Chemistry B 110 (2006) 11291-11298
Results and discussion Sensor calibration and Effect of CNT crystalline structure on sensor sensitivity.
We investigated polyacrylic acid (PAA) coated CNT for NH3 detection and CNT-functionalized with poly(aminophenylene) using a process based on the diazonium chemistry [12] for HCl detection.
Gabriel, The Journal of Physical Chemistry B 110 (2006) 21014-21020
Ramaprabhu, The Journal of Physical Chemistry B 110 (2006) 11291-11298
Online since: July 2020
Authors: Andrey G. Syrkov, Vladimir V. Tomaev
Structure-Properties Correlation of Lead Selenide-Lead Selenite Composite
Vladimir V.
Novoselova, Studying the thermal decomposition of lead selenate and selenite, Journal of Inorganic Chemistry 5(10) (1960) 2261-2264
Novoselova, Studying the interaction of lead selenide with oxygen, Journal of Inorganic Chemistry 6(12) (1961) 2753-2757
Novoselova, Research of some properties of lead selenite and oxyselenites, Journal of Inorganic Chemistry 7(12) (1962) 2746-2751
Novoselova, On the production of lead selenide, Journal of Inorganic Chemistry 6(7) (1960) 1730-1731
Novoselova, Studying the thermal decomposition of lead selenate and selenite, Journal of Inorganic Chemistry 5(10) (1960) 2261-2264
Novoselova, Studying the interaction of lead selenide with oxygen, Journal of Inorganic Chemistry 6(12) (1961) 2753-2757
Novoselova, Research of some properties of lead selenite and oxyselenites, Journal of Inorganic Chemistry 7(12) (1962) 2746-2751
Novoselova, On the production of lead selenide, Journal of Inorganic Chemistry 6(7) (1960) 1730-1731
Online since: May 2020
Authors: Anatoliy I. Kupchishin, Marat N. Niyazov, Buvkhan G. Taipova
The increase in E occurs due to the decrease in the distance between macromolecules in the irradiated structure of the sample.
The reason for this is the occurrence of destruction in nanoscale and the degradation of chains in the polymer structure.
The increase in E occurs due to the decrease in the distance between the chains in the irradiated structure of the sample.
Nair, Deformation mechanisms of polytetrafluoroethylene at the nano- and microscales, Royal Society of Chemistry. 21 1 (2019) 490-503.
Taha Doaa, The alterations in high density polyethylene properties with gamma irradiation, Radiation Physics and Chemistry. 139 (2017) 90-96
The reason for this is the occurrence of destruction in nanoscale and the degradation of chains in the polymer structure.
The increase in E occurs due to the decrease in the distance between the chains in the irradiated structure of the sample.
Nair, Deformation mechanisms of polytetrafluoroethylene at the nano- and microscales, Royal Society of Chemistry. 21 1 (2019) 490-503.
Taha Doaa, The alterations in high density polyethylene properties with gamma irradiation, Radiation Physics and Chemistry. 139 (2017) 90-96
Online since: June 2025
Authors: Nur Najahatul Huda Saris, Nazirah Mohd Razali, Toshimi Fukui, Takaaki Ishigure, Marinah Othman, Azura Hamzah, Nurul Ashikin Daud
The results demonstrate effective interaction between the structure and the sensing medium.
This study offers valuable insights, guiding the optimal design of polymer-based RI sensors for future environmental monitoring, chemistry, and biomedicine applications.
Numerous optical RI sensor structures and designs have been developed to enhance sensor performance.
Fig. 1 illustrates the geometrical structure of the NCF.
Hence, the findings specify that the Eu-Al/BzMA material-based NCF design structures are indeed promising and desirable candidates to be used in developing high-performance sensors in the fields of environmental monitoring, chemistry, and biomedicine.
This study offers valuable insights, guiding the optimal design of polymer-based RI sensors for future environmental monitoring, chemistry, and biomedicine applications.
Numerous optical RI sensor structures and designs have been developed to enhance sensor performance.
Fig. 1 illustrates the geometrical structure of the NCF.
Hence, the findings specify that the Eu-Al/BzMA material-based NCF design structures are indeed promising and desirable candidates to be used in developing high-performance sensors in the fields of environmental monitoring, chemistry, and biomedicine.
Online since: September 2016
Authors: Sherjang Singh, Pranesh Muralidhar, Samuel Mallabar, Silas Scott
Cleaning chemistry chosen for this step has to be carefully optimized to avoid metal attack.
NH4OH + H2O2 + H2O) are common cleaning chemistries to remove post etch residues as well as particles.
NH4OH based chemistries were found to attack Al metal as well.
In advanced nodes, MoL structures require tighter CD and overlay controls as well as new patterning films.
NH4OH based conventional chemistries can attack trench fill and gate fill metals such as W and Al, thus chemistries need to be carefully chosen when such materials are exposed.
NH4OH + H2O2 + H2O) are common cleaning chemistries to remove post etch residues as well as particles.
NH4OH based chemistries were found to attack Al metal as well.
In advanced nodes, MoL structures require tighter CD and overlay controls as well as new patterning films.
NH4OH based conventional chemistries can attack trench fill and gate fill metals such as W and Al, thus chemistries need to be carefully chosen when such materials are exposed.
Online since: January 2016
Authors: Koji Morita, Koji Matsui, Byung Nam Kim, Yuichi Ikuhara, Hidehiro Yoshida, Taketo Sakuma
It has been widely accepted that the high temperature superplastic flow and failure in ceramics is significantly influenced by the atomic structure and chemistry of grain boundaries.
The effect of a small amount of impurities is closely related to the atomic structure and chemistry of grain boundary.
Concluding Remarks The doping or co-doping effect is a typical example of the dominant influence of the grain boundary structure and chemistry on the superplasticity in ceramics.
On the other hand, the controlling of the grain boundary structure means the designing of atomic structure and interatomic interaction of grain boundary.
Wild, Grain Boundaries - Their Microstructure and Chemistry, John Wiley & Sons, New York, 2001, pp. 35-85
The effect of a small amount of impurities is closely related to the atomic structure and chemistry of grain boundary.
Concluding Remarks The doping or co-doping effect is a typical example of the dominant influence of the grain boundary structure and chemistry on the superplasticity in ceramics.
On the other hand, the controlling of the grain boundary structure means the designing of atomic structure and interatomic interaction of grain boundary.
Wild, Grain Boundaries - Their Microstructure and Chemistry, John Wiley & Sons, New York, 2001, pp. 35-85
Online since: December 2014
Authors: Jing Zhang, Yuan Tian, Yu Guang Wang, Guo Dong Liu
As a result, more and more rod-like structure formed.
Chemistry of Materials, Vol. 18(2006), p 2012
Chemistry of Materials, Vol. 13(2001), p 2195
Yu, Chemistry Letters, Vol. 32(2003), p 824
Li, Inorganic Chemistry, Vol.45(2006), p 7522
Chemistry of Materials, Vol. 18(2006), p 2012
Chemistry of Materials, Vol. 13(2001), p 2195
Yu, Chemistry Letters, Vol. 32(2003), p 824
Li, Inorganic Chemistry, Vol.45(2006), p 7522
Online since: June 2015
Authors: A.P. Othman, Amin Aadenan, Muhammad Mus Ab Anas, G.A. Gopir
In quantum mechanics or particularly in quantum chemistry, the electron density is a measure of the probability of an electron occupying at any infinitesimal element of space surrounding at any given point.
G. 2003.Sufficient condition for monotonic electron density decay in many-electron systems.International Journal of Quantum Chemistry 95(6): 877-885
Density functional for coulomb systems.International Journal of Quantum Chemistry 24: 243-277
Growth and local structure analysis of ZnS nanoparticles.
Theoretical investigations of the effect of vacancies on the geometric and electronic structures of zinc sulfide.
G. 2003.Sufficient condition for monotonic electron density decay in many-electron systems.International Journal of Quantum Chemistry 95(6): 877-885
Density functional for coulomb systems.International Journal of Quantum Chemistry 24: 243-277
Growth and local structure analysis of ZnS nanoparticles.
Theoretical investigations of the effect of vacancies on the geometric and electronic structures of zinc sulfide.