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Online since: July 2015
Authors: Shu Juan Yu, Guang Jian Zheng, Jin Ying Pang, Dong Huang, Wan Li Lu, Guo Wei Mo
Effects of Preparation Conditions on Alkali-activation Reactivity of Chemosynthetic Al2O3-2SiO2 Powders
Dong HUANG 1, Wanli LU1, Jinying PANG 1, Guowei MO 1, Shujuan YU1 and Guangjian ZHENG 1,2*
1 College of Chemistry and Materials Science, Guangxi Teachers Education University, Nanning 530001, China;
2 Guangxi Experiment Centre of Science and Technology, Guangxi University,Nanning 530004, China
*Corresponding Author.
Address: College of Chemistry and Materials Science, Guangxi Teachers Education University, 175 Mingxiu East Road, Nanning 530001, China; email: zhgj0920@163.com Keywords: geopolymers, Al2O3-2SiO2 powders, alkali-activation reactivity, preparation conditions optimization Abstract.
The structure of the powders was investigated by 27Al magic-angle spinning nuclear magnetic resonance spectra.
Acknowledgments This work was supported by Guangxi Natural Science Fund (grant: 2014GXNSFAA118323), Guangxi Experiment Centre of Science and Technology (grant: LGZXKF201202), Research Project of the Education Department of Guangxi Government (grant: 201204LX238) and Opening Fund of Doctor Station Construction of Guangxi Teachers Education University and Opening Fund of Guangxi Universities Key Discipline Construction (Organic Chemistry).
Klinowski: Solid-State NMR Studies of the Structure and Reactivity of Metakaolinite.
Address: College of Chemistry and Materials Science, Guangxi Teachers Education University, 175 Mingxiu East Road, Nanning 530001, China; email: zhgj0920@163.com Keywords: geopolymers, Al2O3-2SiO2 powders, alkali-activation reactivity, preparation conditions optimization Abstract.
The structure of the powders was investigated by 27Al magic-angle spinning nuclear magnetic resonance spectra.
Acknowledgments This work was supported by Guangxi Natural Science Fund (grant: 2014GXNSFAA118323), Guangxi Experiment Centre of Science and Technology (grant: LGZXKF201202), Research Project of the Education Department of Guangxi Government (grant: 201204LX238) and Opening Fund of Doctor Station Construction of Guangxi Teachers Education University and Opening Fund of Guangxi Universities Key Discipline Construction (Organic Chemistry).
Klinowski: Solid-State NMR Studies of the Structure and Reactivity of Metakaolinite.
Online since: November 2013
Authors: N. Ismail, A.R. Dalila, M.S. Rosmi, M. Rusop, Suriani Abu Bakar, Z. Abdul Majid, F.W. Hong
Rusop4
1 Department of Chemistry, Faculty of Science,
Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia.
2 Department of Chemistry, Faculty of Science and Mathematics,
Universiti Pendidikan Sultan Idris, 35900, Tanjung Malim, Perak, Malaysia
3Department of Physics, Faculty of Science and Mathematics,
Universiti Pendidikan Sultan Idris, 35900, Tanjung Malim, Perak, Malaysia.
4 NANO-SciTech Center, Institute of Science,
Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia.
The result of FESEM micrograph shows that the structure of modified EAFS has similar structure to the flower-like porous hematite (α-Fe2O3) nanoarchitectures composed of ultra-thin nanoflakes.
[7] Khraisheh, M.A.M., Al-Degs, Y.S., Allen, S.J. and Ahmad, M.N., Elucidation of controlling steps of reactive dye adsorption on activated carbon, Industrial Engineering Chemistry 41 (2002), p. 1651-1657
The result of FESEM micrograph shows that the structure of modified EAFS has similar structure to the flower-like porous hematite (α-Fe2O3) nanoarchitectures composed of ultra-thin nanoflakes.
[7] Khraisheh, M.A.M., Al-Degs, Y.S., Allen, S.J. and Ahmad, M.N., Elucidation of controlling steps of reactive dye adsorption on activated carbon, Industrial Engineering Chemistry 41 (2002), p. 1651-1657
Online since: March 2008
Authors: Peng Cheng Zhang, Yong Xiang Leng, Nan Huang, Yan Ping Wu, Sun Hong, Sheng Fa Zhu, Bin Bai
Then the structure, thickness, residual
stress, micro-hardness, wear-resistance and anti-corrosion properties of CrNx films were investigated.
The micro-structure of the CrNx thin films was analyzed by X-ray diffraction with a Cu Kα Source.
The micro-hardness value was attributed to the resultant effect of structure, thickness and residual stress.
Summary The structure, hardness, residual stress, wear and corrosion resistance properties of CrNx film deposited at a series N2 flow rates were compared.
Acknowledgement This work is financially supported by supported by National Natural Science Foundation of China (30400109#), Program for New Century Excellent Talents in University (06-0800) ,Sichuan Youth Science & Technology Foundation (#06ZQ026-015, #2006J02-006-4) and State Key Laboratory of Physical Chemistry of Surface (90000460200605),.
The micro-structure of the CrNx thin films was analyzed by X-ray diffraction with a Cu Kα Source.
The micro-hardness value was attributed to the resultant effect of structure, thickness and residual stress.
Summary The structure, hardness, residual stress, wear and corrosion resistance properties of CrNx film deposited at a series N2 flow rates were compared.
Acknowledgement This work is financially supported by supported by National Natural Science Foundation of China (30400109#), Program for New Century Excellent Talents in University (06-0800) ,Sichuan Youth Science & Technology Foundation (#06ZQ026-015, #2006J02-006-4) and State Key Laboratory of Physical Chemistry of Surface (90000460200605),.
Online since: September 2012
Authors: Zhen Hua Zhang, Li Bo Fan, Meng Yuan Yang, Yan Lei, Peng Wang, An Mei Wang, Yan Ge Zhang, Pin Jiang Li
China
4Department of Chemistry, Zhengzhou University, Zhengzhou, 450000,P.
A solar cell, with a structure of Al/P3HT:PbS/PEDOT:PSS/ITO/Glass, was made.
Results and discussion The XRD technique was used to characterize the phase structure and crystallinity of the as-prepared product.
Fig. 4 b shows the device structure schematic of the hybrid solar cells of Al/P3HT:PbS/PEDOT:PSS/ITO/Glass.
Fig. 4 a) The corresponding energy levels of the photovoltaic device based on the P3HT and PbS hybrid film; b) The device structure schematic of the fabricated P3HT/PbS hybrid solar cells.
A solar cell, with a structure of Al/P3HT:PbS/PEDOT:PSS/ITO/Glass, was made.
Results and discussion The XRD technique was used to characterize the phase structure and crystallinity of the as-prepared product.
Fig. 4 b shows the device structure schematic of the hybrid solar cells of Al/P3HT:PbS/PEDOT:PSS/ITO/Glass.
Fig. 4 a) The corresponding energy levels of the photovoltaic device based on the P3HT and PbS hybrid film; b) The device structure schematic of the fabricated P3HT/PbS hybrid solar cells.
Structure-Performance Correlations in Electrochromic Behaviors of Terpyridine-Metal Hybrid Materials
Online since: April 2016
Authors: Jia Wei Yang, Xian Ge Xie, Xiao Mei Wang, Yu Yang Zhou, Chang Qing Ye
Structure-performance correlations in electrochromic behaviors of terpyridine-metal hybrid materials
Jia-wei Yang, Xian-ge Xie, Xiao-mei Wanga, Chang-qing Yeb and Yu-yang Zhou
Jiangsu Key Laboratory for Environmental Functional Materials, College of Chemistry, Biology and Material Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
awangxiaomei@mail.usts.edu.cn, byechangqing@mail.usts.edu.cn
Keywords: electrochromic behavior; terpyridine-based complex; long-term stability; metal-to-ligand charge transfer
Abstract.
Exploring the structure-property relationships is a fundamental but significant work for the design of new molecular.
Understanding the relationships between the structure and the electrochromic property in such systematic ways, can be benefit for us to design potential candidates with elegant molecular structures for the fabrication of ECMs with high performance in the future.
The results suggest that the stabilities are correlated mainly with the structure of the ligands, although an effect of metal ions can also be recognized.
Mellor: Modern inorganic chemistry, Longmans, Green and Company, London, (1917)
Exploring the structure-property relationships is a fundamental but significant work for the design of new molecular.
Understanding the relationships between the structure and the electrochromic property in such systematic ways, can be benefit for us to design potential candidates with elegant molecular structures for the fabrication of ECMs with high performance in the future.
The results suggest that the stabilities are correlated mainly with the structure of the ligands, although an effect of metal ions can also be recognized.
Mellor: Modern inorganic chemistry, Longmans, Green and Company, London, (1917)
Online since: January 2017
Authors: Hui Feng Zhang, Yu Shan Zhang, Hai Huang, Man Zhao
Hou: Journal of Materials Chemistry A, Vol. 1 (2013) No.37, p.11343
Wang: Journal of Materials Chemistry, Vol. 20 (2010) No.22, p.4551
Schadler: Chemistry of Materials, Vol. 15 (2003) No.16, p.3198
Chen: Physical Chemistry Chemical Physics, Vol. 15 (2013) No.23, p.9084
Shi: Journal of Materials Chemistry, Vol. 20 (2010) No.47, p.10622
Wang: Journal of Materials Chemistry, Vol. 20 (2010) No.22, p.4551
Schadler: Chemistry of Materials, Vol. 15 (2003) No.16, p.3198
Chen: Physical Chemistry Chemical Physics, Vol. 15 (2013) No.23, p.9084
Shi: Journal of Materials Chemistry, Vol. 20 (2010) No.47, p.10622
Online since: April 2021
Authors: Nendar Herdianto, Riesma Tasomara, Ika Maria Ulfa, Annisa Ramadhanti Ririanza Putri, Winda Rianti, Dwi Gustiono, Adita Wardani Rahmania
Furthermore, low angle peak in XRD analysis indicates the formation of mesopores structure.
In particular, LA-XRD can be used to detect the existence of mesopores structure [13, 14].
King, The effect of calcium phosphate ceramic composition and structure on in vitro behavior.
Wu, Mesoporous hydroxyapatite: Preparation, drug adsorption, and release properties, Materials Chemistry and Physics 148 (2014):153-158
Laborde, Synthesis, characterization and thermal behavior of apatitic tricalcium phosphate, Materials Chemistry and Physics 80 (2003) 269–277
In particular, LA-XRD can be used to detect the existence of mesopores structure [13, 14].
King, The effect of calcium phosphate ceramic composition and structure on in vitro behavior.
Wu, Mesoporous hydroxyapatite: Preparation, drug adsorption, and release properties, Materials Chemistry and Physics 148 (2014):153-158
Laborde, Synthesis, characterization and thermal behavior of apatitic tricalcium phosphate, Materials Chemistry and Physics 80 (2003) 269–277
Online since: March 2022
Authors: Nur Azura Mohd Said, Karen Twomey, Vladimir I. Ogurtsov, Gregoire Herzog
EIS has becoming a favorable and powerful tool in electroanalysis as it provides information regarding electrode interface, its structure and the reactions that took place on the surface.
Journal of Electroanalytical Chemistry. 453(1–2) (1998) 49-60
Analytical Chemistry. 70(14) (1998) 2908-2913
Analytical Chemistry. 57(9) (1985) 1913-1916
Analytical and bioanalytical chemistry. 391(5) (2008) 1555-1567
Journal of Electroanalytical Chemistry. 453(1–2) (1998) 49-60
Analytical Chemistry. 70(14) (1998) 2908-2913
Analytical Chemistry. 57(9) (1985) 1913-1916
Analytical and bioanalytical chemistry. 391(5) (2008) 1555-1567
Online since: May 2011
Authors: Hui Min Gu, Yu Chun Zhai, Wei Wang
XRD result indicates that the crystal structure of β-NiOOH is disordered in a way.
Rigaku D/max RB x-ray diffractometer (XRD, Rigaku Corporation, Japan) with a Cu Kα radiation source was used to detect the crystal structure of β-NiOOH.
The second peak is very wide and unsymmetrical, which indicates that the layered crystal structure of product is disordered, the distribution of layers is random in a way.
From Fig. 7, the crystal structure of β-NiOOH prepared by chemical oxidization method is disordered in a way.
Physical Chemistry Vol. 75 (1971), p. 1782 [4] D.A.
Rigaku D/max RB x-ray diffractometer (XRD, Rigaku Corporation, Japan) with a Cu Kα radiation source was used to detect the crystal structure of β-NiOOH.
The second peak is very wide and unsymmetrical, which indicates that the layered crystal structure of product is disordered, the distribution of layers is random in a way.
From Fig. 7, the crystal structure of β-NiOOH prepared by chemical oxidization method is disordered in a way.
Physical Chemistry Vol. 75 (1971), p. 1782 [4] D.A.
Online since: October 2010
Authors: Min Fu, Kun Gao, Rui Qi Wang, She Guang Ding
The structure and properties of catalysts were characterized by XRD, XPS, DSC, FS, UV-Vis respectively, where XRD represents Fe/N-TiO2 species calcined at 500℃ are classified into anatase pattern with average 17nm diameter of TiO2 crystal; XPS shows iron and nitrogen species dope into the lattice of TiO2 framework; DSC indicates phase transition temperature 440℃ of the doped TiO2 from amphorous crystalline into anatase and the dopants have a limited effect on transition temperature; UV-Vis reveals stronger absorption of doped TiO2 than that of TiO2 in visible region and red shift of 70nm to 450nm; FS proves poorer electron-hole recombination.
On basis of cheap and abundant iron(III) nitrate as the source of iron and urea as the source of nitrogen, sol-gel method is used to prepare nano TiO2 doped by nitrogen and iron(III)( Fe/N-TiO2), which structure is characterized by XRD, XPS, DSC, UV-vis, FS.
Vol. 42(2006), p. 18(In Chinese) [7] Wu Pingxiao, Tang Jianwen, Dang Zhi: Materials Chemistry and Physics.
Vol. 103(2007), p. 264 [8] K.S.Rane, R.Mhalsikera, S.Yinb, et al: Journal of Solid State Chemistry.
Vol. 179(2006), p. 3033 [9] HUANG Dong-Sheng, CHEN Chao-Feng, LI Yu-Hua, et al: Chinese Journal of Inorganic Chemistry.
On basis of cheap and abundant iron(III) nitrate as the source of iron and urea as the source of nitrogen, sol-gel method is used to prepare nano TiO2 doped by nitrogen and iron(III)( Fe/N-TiO2), which structure is characterized by XRD, XPS, DSC, UV-vis, FS.
Vol. 42(2006), p. 18(In Chinese) [7] Wu Pingxiao, Tang Jianwen, Dang Zhi: Materials Chemistry and Physics.
Vol. 103(2007), p. 264 [8] K.S.Rane, R.Mhalsikera, S.Yinb, et al: Journal of Solid State Chemistry.
Vol. 179(2006), p. 3033 [9] HUANG Dong-Sheng, CHEN Chao-Feng, LI Yu-Hua, et al: Chinese Journal of Inorganic Chemistry.