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Online since: November 2014
Authors: Mohammad Azmi Bustam, Mohd Shariff Azmi, Muhammad Yasin Naz, Ghulam Murshid, Muhammad Nadeem, Shaukat Ali Shahid, Muhammad Sagir, Muhammad Mushtaq, Sami Ullah
In addition, the adsorption of corrosion inhibitor depends mainly on the molecular electronic structure.
In this context, thiourea as corrosion inhibitor and surfactants which contain nitrogen and sulfur in their structure are important.
The efficiency of these inhibitors relay on their chemical, molecular structure, and their affinities for the metal surface [12].
[3] Migahed MA, Azzam EMS, Al-Sabagh AM, Corrosion inhibition of mild steel in 1 M sulfuric acid solution using anionic surfactant, Materials Chemistry and Physics, 85(2–3) (2004) 273-279
Materials Chemistry and Physics. 2003;77(3):687-690
In this context, thiourea as corrosion inhibitor and surfactants which contain nitrogen and sulfur in their structure are important.
The efficiency of these inhibitors relay on their chemical, molecular structure, and their affinities for the metal surface [12].
[3] Migahed MA, Azzam EMS, Al-Sabagh AM, Corrosion inhibition of mild steel in 1 M sulfuric acid solution using anionic surfactant, Materials Chemistry and Physics, 85(2–3) (2004) 273-279
Materials Chemistry and Physics. 2003;77(3):687-690
Online since: April 2015
Authors: Ying Xin Zhang, Qun Ji Xue, Quan Yao Yu, Zhen Zhen Liu, Zhi Xiang Zeng, Xue Dong Wu
The micro-structure of films was performed by X-ray diffraction (XRD, Bruker-AXS: D8 Advance, Germany).
The contact angle would be affected by the surface chemistry and structure.
So the contact angle difference is caused by the surface chemistry.
However, the morphology of Ni-graphene composite coatings without N2H4 exhibit micro-nano structure.
So, the contact angle is mainly affected by its surface structure.
The contact angle would be affected by the surface chemistry and structure.
So the contact angle difference is caused by the surface chemistry.
However, the morphology of Ni-graphene composite coatings without N2H4 exhibit micro-nano structure.
So, the contact angle is mainly affected by its surface structure.
Online since: March 2017
Authors: Indriana Kartini, Chotimah Chotimah, Lian Zhou Wang, Inna Yusnila Khairani, Salim Mustofa, Sri Juari Santosa
The TEM images showed the formation of nanotube structure in alkaline ratio NaOH:NH3 of 1:0 and 3:1, with diameter of about 10 nm.
The acid washing treatment as well as calcining the as-synthesized powder at 300 °C were introduced to maintain the nanotube structure and the existence of anatase crystalline phase.
Experimental Section TiO2 powder with crystalline structure of anatase (Merck) was used for TiO2 source.
Similarly, the morphological structure for sample 3:1 NaNH3-Ti-H (Fig. 1b) was found to be similar with Na-Ti-H, as mostly all of the morphology of titania were open-ended nanotubes.
The sheet did not like to scroll which is usually assisted by electrostatic repulsion of Na+ to H+ of titanate structure [10].
The acid washing treatment as well as calcining the as-synthesized powder at 300 °C were introduced to maintain the nanotube structure and the existence of anatase crystalline phase.
Experimental Section TiO2 powder with crystalline structure of anatase (Merck) was used for TiO2 source.
Similarly, the morphological structure for sample 3:1 NaNH3-Ti-H (Fig. 1b) was found to be similar with Na-Ti-H, as mostly all of the morphology of titania were open-ended nanotubes.
The sheet did not like to scroll which is usually assisted by electrostatic repulsion of Na+ to H+ of titanate structure [10].
Online since: August 2019
Authors: Hoc Thang Nguyen
Structure of first geopolymeric generation in alkali condition [1]
Studies have been done to understand further the geopolymerization reaction.
That is the information about the structure of the molecules [18].
There are vibrations of the double 4-membered ring and Si-O-Si, O-Si-O in silicate structure at 440 cm-1.
Davidovits, Geopolymer chemistry and application, 3rd editon, Institute Geopolymer, France, 2011
Pastorek, Effect of hydrothermal treatment on the structure of an aluminosilicate polymer, Central European Journal of Chemistry, 11 (5) (2013) 782-789
That is the information about the structure of the molecules [18].
There are vibrations of the double 4-membered ring and Si-O-Si, O-Si-O in silicate structure at 440 cm-1.
Davidovits, Geopolymer chemistry and application, 3rd editon, Institute Geopolymer, France, 2011
Pastorek, Effect of hydrothermal treatment on the structure of an aluminosilicate polymer, Central European Journal of Chemistry, 11 (5) (2013) 782-789
Online since: July 2017
Authors: Chotimah Chotimah, Indriana Kartini, Lian Zhou Wang, Wuri Apriyana, Yateman Arryanto
The crystalline structure of ZnO nanorods was analyzed by X-ray diffraction (XRD, Shimadzu XRD-6000).
Thus, anisotropic growth along the c axis of ZnO (wurtzite structure) occurred rapidly and suppressed the multioriented growth of (101).
For seed layer with good wurtzite structure, ZnO nanorods are expected to adopt the same epitaxial relationship as the seed layer [11].
The rod tubular structure is very clear, with length and rod diameters are 1-5 mm and 40-60 nm, respectively.
Excessive growth of ZnO nanorods resulted in flower-like structure as also reported by some researchers [10,11,16].
Thus, anisotropic growth along the c axis of ZnO (wurtzite structure) occurred rapidly and suppressed the multioriented growth of (101).
For seed layer with good wurtzite structure, ZnO nanorods are expected to adopt the same epitaxial relationship as the seed layer [11].
The rod tubular structure is very clear, with length and rod diameters are 1-5 mm and 40-60 nm, respectively.
Excessive growth of ZnO nanorods resulted in flower-like structure as also reported by some researchers [10,11,16].
Online since: October 2010
Authors: Bing Ming Chen, Feng Xin Yang
To solve the problem of unsmooth lime tank feeding which affects waste water treatment,
in this paper, we take air pickax as a vibrator to improve the structure and the operation technology of
the quicklime baiting system.
But because the whole lime tank is a rigid structure, the vibration is not remarkable in promoting the lime downwards due to the non-impact vibration produced by the vibrating vibrator.
Three-year operation has proved its harmlessness to other structures. 2) The air pickax is fixed easily, controlled quickly.
Conclusion The air pickax itself has a simple structure; it is fixed conveniently and operated with mature technology; it has a reliable usage and is controlled simply.
Reference [1] Ling He: The Inorganic and the Analytical Chemistry (Xi'an Communication University Publishing House, 2009) [2] Zhengwei Xue: Chemical Technology Economy Vol.22 (2004), p.40-41 [3] Fanyong Kong.
But because the whole lime tank is a rigid structure, the vibration is not remarkable in promoting the lime downwards due to the non-impact vibration produced by the vibrating vibrator.
Three-year operation has proved its harmlessness to other structures. 2) The air pickax is fixed easily, controlled quickly.
Conclusion The air pickax itself has a simple structure; it is fixed conveniently and operated with mature technology; it has a reliable usage and is controlled simply.
Reference [1] Ling He: The Inorganic and the Analytical Chemistry (Xi'an Communication University Publishing House, 2009) [2] Zhengwei Xue: Chemical Technology Economy Vol.22 (2004), p.40-41 [3] Fanyong Kong.
Online since: June 2013
Authors: Mirosław Wróbel, Elżbieta Stępniowska, Stanisław Dymek
Introduction
Crystallographic slip (concisely slip) and mechanical twinning (concisely twinning) are important deformation mechanisms of metals with the face centered cubic (fcc) structure and the ordered structures based on the fcc lattice [1].
Both types of twins were formed by usual twinning systems for the fcc structure, i.e. {111}<112>.
During the long range ordering reaction, for each variant of the orientation relationship, two out of four {111} planes of the fcc structure become {110} planes of the oI6 structure and the two other {111} planes of fcc structure become {013} planes in the oI6 one.
Moreover, in the disordered structure the anti-twinning vector is even longer than the slip one.
Wróbel: Materials Chemistry and Physics Vol. 81 (2002), p. 552 [9] Y.T.
Both types of twins were formed by usual twinning systems for the fcc structure, i.e. {111}<112>.
During the long range ordering reaction, for each variant of the orientation relationship, two out of four {111} planes of the fcc structure become {110} planes of the oI6 structure and the two other {111} planes of fcc structure become {013} planes in the oI6 one.
Moreover, in the disordered structure the anti-twinning vector is even longer than the slip one.
Wróbel: Materials Chemistry and Physics Vol. 81 (2002), p. 552 [9] Y.T.
Online since: August 2021
Authors: Nilgun Baydogan, Elif Kocacinar
X-Ray Diffraction (XRD) as a non-destructive test method was used to examine the changes in the crystalline properties of the nanocomposite structure with the rise of the GNPs amount in PMMA.
Thanks to its special electronic structure, along with its amazing chemical, thermal, mechanical and optical properties Graphene gets so much attention in the research sector [17-20].
The macromolecules that are created during the reaction of polymerization can disperse in the nanosheets and smooth the exfoliation structure establishment [24].
To obtain control over the molecular polymer chains end-group, polydispersity, architecture, and weight is synthetic polymer chemistry most significant goal.
Nuyken, in Polymer Chemistry, Berlin, Springer Nature, 2017, pp. 398-399
Thanks to its special electronic structure, along with its amazing chemical, thermal, mechanical and optical properties Graphene gets so much attention in the research sector [17-20].
The macromolecules that are created during the reaction of polymerization can disperse in the nanosheets and smooth the exfoliation structure establishment [24].
To obtain control over the molecular polymer chains end-group, polydispersity, architecture, and weight is synthetic polymer chemistry most significant goal.
Nuyken, in Polymer Chemistry, Berlin, Springer Nature, 2017, pp. 398-399
Online since: April 2021
Authors: Ya Hao Liu, Gui Bo Yu, Jing Qia, Chun Ming Zhang, Quan Qun Xu, Xiao Zhang, Jian Zheng
Moreover, the main preparation methods and material structures of graphene are reviewed.
Epitaxial graphene electronic structure and transport.
Journal of solid state chemistry, 2013, 197(1): 345-351
Effect of preparation methods on the structure and catalytic thermal decomposition application of graphene/Fe2O3 nanocomposites.
Industrial & Engineering Chemistry Research, 2017, 56(13): 3477-3502
Epitaxial graphene electronic structure and transport.
Journal of solid state chemistry, 2013, 197(1): 345-351
Effect of preparation methods on the structure and catalytic thermal decomposition application of graphene/Fe2O3 nanocomposites.
Industrial & Engineering Chemistry Research, 2017, 56(13): 3477-3502
Online since: July 2011
Authors: Guang Qing Xu, Yu Cheng Wu, Dong Mei Wang, Zhi Xiang Zheng, Song Zhou, Ling Kun Guo, Jun Lv
XRD results shows that TiO2 films have the main phases of anatase and rutile mixed crystal structure.
Research shows that: when compared with the anatase TiO2, nano-rutile-type structure TiO2 have poor photocatalytic activity.
Effects of templates on the structure, stability and photo catalytic activity of macrostructure TiO2,J.
Chinese Journal of Inorganic Chemistry, 2009,25(11):1898-1902 [7] Li Youji, Li Xiaodong, Li Junwen, Yin Jing, et al.
Environmental Chemistry, 2004,23(6):650-654 [8] Chen Tianhu, Shi Xiaoli, Peng Shuchuan, et al.
Research shows that: when compared with the anatase TiO2, nano-rutile-type structure TiO2 have poor photocatalytic activity.
Effects of templates on the structure, stability and photo catalytic activity of macrostructure TiO2,J.
Chinese Journal of Inorganic Chemistry, 2009,25(11):1898-1902 [7] Li Youji, Li Xiaodong, Li Junwen, Yin Jing, et al.
Environmental Chemistry, 2004,23(6):650-654 [8] Chen Tianhu, Shi Xiaoli, Peng Shuchuan, et al.