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Online since: August 2013
Authors: Cheng Yin Yan, Xiao Lan Song, Shu Tao Huang, Ming Wan Zhang, Bai Yang Geng, Rang Bin Meng
The XRD pattern suggested that PANI did not modify the crystal structure of TiO2 whereas PANI exhibited amorphous state.
Numerous studies have been focused on the use of both PANI and TiO2 in various structures, including p-n transition sensors, heterocontacts and composite.
The type-Ⅳ isotherm with a clear capillary condensation step of the as-prepared sample indicates the presence of mesoporous structure[23].
Materials Chemistry and Physics, 98(2006)241-247
[23] Information of International Union of Pure and Applied Chemistry
Numerous studies have been focused on the use of both PANI and TiO2 in various structures, including p-n transition sensors, heterocontacts and composite.
The type-Ⅳ isotherm with a clear capillary condensation step of the as-prepared sample indicates the presence of mesoporous structure[23].
Materials Chemistry and Physics, 98(2006)241-247
[23] Information of International Union of Pure and Applied Chemistry
Online since: March 2011
Authors: Zheng Bing Qi, Zhou Cheng Wang, Fang Ping Zhu, Chong Hu Wu
Effect of Target Power on Structure and Mechanical Properties of Nanocrystalline ZrN Coatings
Fang-ping ZHU1,a, Zheng-bing QI2,b, Zhou-cheng WANG1,c*, Chong-hu WU2,d
1College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
2National R&D Center for Tungsten Technology, Xiamen, China
azfp0307@yahoo.com.cn, bzbqi_xmu@126.com, czcwang@xmu.edu.cn,
dgesacmis@public.xm.fj.cn
Keywords: ZrN, magnetron sputtering, target power, mechanical property
Abstract.
All coatings showed columnar structure, and the columnar width increased with improved power.
It is revealed that all the coatings have a B1-NaCl structure (JCPDS 35-0753).
It can be seen that the coatings show columnar structure and the columnar width rise with increasing target power.
Therefore, the coatings form columnar structure.
All coatings showed columnar structure, and the columnar width increased with improved power.
It is revealed that all the coatings have a B1-NaCl structure (JCPDS 35-0753).
It can be seen that the coatings show columnar structure and the columnar width rise with increasing target power.
Therefore, the coatings form columnar structure.
Online since: October 2010
Authors: Li Jun Zhong, Jing Wang
Thus a hole-type dissolution channels appeared on the surface of core-shell structure.
The octahedral [Al (OH)n (H2O)6-n](3-n)+ in solution can only form of AlOOH structure.
And two-dimensional sheet structure will be generated.
Journal of Solid State Chemistry, Vol.161(2001), p: 321-323
Journal of Solid State Chemistry, Vol. 166(2002), p: 183-186
The octahedral [Al (OH)n (H2O)6-n](3-n)+ in solution can only form of AlOOH structure.
And two-dimensional sheet structure will be generated.
Journal of Solid State Chemistry, Vol.161(2001), p: 321-323
Journal of Solid State Chemistry, Vol. 166(2002), p: 183-186
Online since: August 2020
Authors: Dani Gustaman Syarif, Risdiana Risdiana, Iman Rahayu, Atiek Rostika Noviyanti, Yati B. Yuliyati, Solihudin Solihudin
Yuliyati1,b, Solihudin1,c, Iman Rahayu1,d, Dani Gustaman Syarif2,e and Risdiana3,f
1Physical-Inorganic Chemistry Laboratory, Department of Chemistry, Faculty of Mathematics
and Natural Sciences, Universitas Padjadjaran, Jl.
Structure, morphology and conductivity of LSO.
Refinement x-ray diffraction of LSO1 and LSO2 by high scoreplus software found that both samples have a hexagonal structure with a P63/m space group.
The electron density along the LSO lattice and crystal structure was predicted by simulating of Fourier map as shown in Fig. 1.
The density electron of the LSO2 is lower than that the LSO1 lattice, this is due to the decreasing accuracy of the LSO2 structure.
Structure, morphology and conductivity of LSO.
Refinement x-ray diffraction of LSO1 and LSO2 by high scoreplus software found that both samples have a hexagonal structure with a P63/m space group.
The electron density along the LSO lattice and crystal structure was predicted by simulating of Fourier map as shown in Fig. 1.
The density electron of the LSO2 is lower than that the LSO1 lattice, this is due to the decreasing accuracy of the LSO2 structure.
Online since: July 2015
Authors: Ying Wang, Dong Hao Sun, Yan Feng Guo
Controllable Synthesis of Functional Polyaniline Nanotubes Via A Complex Template
Ying WANG, Donghao SUNa and Yanfeng GUO
College of Chemistry, Chemical Engineering and Materials, Soochow University, No.199 Ren'ai Road ,Suzhou 215123, P.R.
As shown in Fig. 1A, the resulting PANI–AO II shows tubular structures, about 150–300nm in diameter and several micrometers in length, and there are a few granules on the surface.
The tubular structure of PANI–AO II is further confirmed by TEM micrograph (Fig. 1A inset), where the inner diameter of nanotubes is about 30–80 nm.
Therefore, granular PANI was observed besides a few tubular structures.
Wang: J Polym Sci Part A: Chemistry of Polymers, Vol. 30 (1992) No.4, p.543.
As shown in Fig. 1A, the resulting PANI–AO II shows tubular structures, about 150–300nm in diameter and several micrometers in length, and there are a few granules on the surface.
The tubular structure of PANI–AO II is further confirmed by TEM micrograph (Fig. 1A inset), where the inner diameter of nanotubes is about 30–80 nm.
Therefore, granular PANI was observed besides a few tubular structures.
Wang: J Polym Sci Part A: Chemistry of Polymers, Vol. 30 (1992) No.4, p.543.
Online since: March 2008
Authors: Chun Jing Hu, Yan Ping Hu, Yan Li, Ye Hong Yu
Comparisons of the structures of natural fibers with synthetic fibers.
Ramie fiber has the smallest cross sectional area due to its single cell structure.
Tensile strength of natural fibers Natural fibers possess multi-scale structures.
Sarwade: Materials Chemistry and Physics Vol. 92 (2005), p458
Zeng: Natural fiber reinforced composites (Chemistry and Industry Publication, China 2005).
Ramie fiber has the smallest cross sectional area due to its single cell structure.
Tensile strength of natural fibers Natural fibers possess multi-scale structures.
Sarwade: Materials Chemistry and Physics Vol. 92 (2005), p458
Zeng: Natural fiber reinforced composites (Chemistry and Industry Publication, China 2005).
Online since: February 2011
Authors: Yong Feng Li, Jian Li, Yi Xing Liu, Xiang Ming Wang, Xiu Rong Li
The structure of the resultant composite was characterized by SEM, FTIR and XRD.
The structure of the composite was characterized by SEM, FTIR and XRD.
Figure 1 shows the structures of untreated wood and wood-PSt composite.
The structure of the resultant composite was characterized by SEM, FTIR and XRD.
Radiation Physics and Chemistry, vol. 46 (1995), p.889 [5] R.
The structure of the composite was characterized by SEM, FTIR and XRD.
Figure 1 shows the structures of untreated wood and wood-PSt composite.
The structure of the resultant composite was characterized by SEM, FTIR and XRD.
Radiation Physics and Chemistry, vol. 46 (1995), p.889 [5] R.
Online since: November 2025
Authors: Vinod S. Kalyamwar, Vilas R. Hiranwale, Suraj P. Patil, Vishal D. Wankhade, Rajesh B. Pedhekar
This method allows for unprecedented control over the chemical properties, morphology, crystal structure, and as well as physical properties of metal oxide nanoparticles, including characteristics such as length, shape, composition, crystallinity, and floor chemistry [38-42].
Notably, Fig. 3b suggests that the material grew in a layered, structured manner during synthesis.
XRD analysis confirmed the formation of distinct phases, with ZnO exhibiting a hexagonal zincite structure and TiO₂ demonstrating a rutile structure and crystallite sizes of 60.28 nm and 48.12 nm, respectively.
Bekbolet, “Photocatalytic Performance of Titanium Dioxide and Zinc Oxide Binary System on Degradation of Humic Matter”, Journal of Photochemistry & Photobiology, A: Chemistry, 183 (2020) 112748
Tsodikov, “Structure, Magnetic and Photochemical Properties of Fe-TiO2 Nanoparticles Stabilized in Al2O3 Matrix”, Russian Journal of Inorganic Chemistry, 63 (2018) 1403-1413
Notably, Fig. 3b suggests that the material grew in a layered, structured manner during synthesis.
XRD analysis confirmed the formation of distinct phases, with ZnO exhibiting a hexagonal zincite structure and TiO₂ demonstrating a rutile structure and crystallite sizes of 60.28 nm and 48.12 nm, respectively.
Bekbolet, “Photocatalytic Performance of Titanium Dioxide and Zinc Oxide Binary System on Degradation of Humic Matter”, Journal of Photochemistry & Photobiology, A: Chemistry, 183 (2020) 112748
Tsodikov, “Structure, Magnetic and Photochemical Properties of Fe-TiO2 Nanoparticles Stabilized in Al2O3 Matrix”, Russian Journal of Inorganic Chemistry, 63 (2018) 1403-1413
Online since: January 2010
Authors: Yuan Ming Huang, Bao Gai Zhai
BICON-CEDiT, an extended Hückel band structure and oscillator strength calculation package,
was developed by the group of Prof.
In order to obtain the optimal molecular structure for the electronic structure calculation, we performed a geometry optimization of an individual molecule of the LC at AM1 level and then extracted the geometry of the molecule.
The AM1 program was implemented in the MOPAC package (Quantum Chemistry Program Exchange, Indiana University, USA).
Molecular structure of 1,3-phenylene-bis(4-formyl)benzoate is denoted as intermediate banana-shaped compound A.
Molecular structure of 1,3-phenylene-bis [4-(4-octylphenylimino) methyl] benzoate is denoted as target banana-shaped compound B.
In order to obtain the optimal molecular structure for the electronic structure calculation, we performed a geometry optimization of an individual molecule of the LC at AM1 level and then extracted the geometry of the molecule.
The AM1 program was implemented in the MOPAC package (Quantum Chemistry Program Exchange, Indiana University, USA).
Molecular structure of 1,3-phenylene-bis(4-formyl)benzoate is denoted as intermediate banana-shaped compound A.
Molecular structure of 1,3-phenylene-bis [4-(4-octylphenylimino) methyl] benzoate is denoted as target banana-shaped compound B.
Online since: May 2022
Authors: Tur Ridha Noer Khalifah, Hasnah Natsir, Siti Fauziah, Indah Raya
Synthesis and Characterization of Hydrogels Derived from Cellulose of Water Hyacinth (Eichornia crassipes) and Chitosan Using the Freeze-Thaw Method
Tur-Ridha Noer Khalifah1,a, Hasnah Natsir2,b, Siti Fauziah2,c and Indah Raya2,d*
1Postgraduate Student, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Hasanuddin University, 90245 Makassar, Indonesia
2Department of Chemistry, Faculty of Mathematics and Natural Sciences, Hasanuddin University, 90245 Makassar, Indonesia
anoerkhalifah03@gmail.com, bhasnahnatsir@gmail.com, cstfauziah_as@yahoo.co.id, dindahraya@unhas.ac.id
Keywords: Absorption, chitosan, freeze-thaw, hydrogel, water hyacinth
Abstract.
The highest absorption of the hydrogel with a ratio of cellulose:chitosan:EDTA variations of 2:2.25:0.25 (g) respectively, which was 287.46% and the appearance of the hydrogel under a microscope showed that the structure of the hydrogel was rather hollow, so that it affected its absorption.
Thus, the hydrogel formed does not have a strong structure.we Swelling Test.
This result is in line with the theory that the more crosslinkers are added to the hydrogel, the lower the water absorption capacity because the more crosslinkers are used, the tighter the network structure will make it difficult for water molecules to enter the tissue [7].
This change can cause the hydrogel structure to break down.
The highest absorption of the hydrogel with a ratio of cellulose:chitosan:EDTA variations of 2:2.25:0.25 (g) respectively, which was 287.46% and the appearance of the hydrogel under a microscope showed that the structure of the hydrogel was rather hollow, so that it affected its absorption.
Thus, the hydrogel formed does not have a strong structure.we Swelling Test.
This result is in line with the theory that the more crosslinkers are added to the hydrogel, the lower the water absorption capacity because the more crosslinkers are used, the tighter the network structure will make it difficult for water molecules to enter the tissue [7].
This change can cause the hydrogel structure to break down.