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Online since: September 2013
Authors: D.D. Risanti, Ruri A. Wahyuono
This bilayer structure uses single phase of TiO2, i.e. anatase.
However, the highest photocurrent is presented by A1A2 structure.
In this study, DSSC with A1A2 structure has large size particle A2 in first layer and small size of A1 in top layer of TiO2 structure.
The bilayer structure offers insight for optimal fabrication of photoelectrode structure of highly efficient DSSCs.
Arakawa: Coordination Chemistry Reviews, Vol. 248, pp. 1381 – 1389, 2004
Online since: January 2005
Authors: Lian Cheng Zhao, M.C. Li, H.M. Li
Li Department of Materials Physics and Chemistry, School of Materials Science and Engineering, Harbin Institute of Technology, P.
XRD results show that the crystal structure of GaN is hexagonal wurtzite structure.
While superlattice structures usually contain several alloys with different valence bands, their band properties can be modulated and amended.
XRD results show that the crystal structure of GaN is hexagonal wurtzite structure.
Online since: October 2010
Authors: Qing Shan Shi, Shao Zao Tan, You Sheng Ouyang, Qiu Hui Yang, Ai Mei Chen, Wen Ru Li, Xiu Lin Shu, Jing Feng, Jin Feng, Yi Ben Chen
Structure and Antibacterial Activity of Copper-carried Zirconium Phosphates Qingshan Shi1, a, Shaozao Tan2, b, Yousheng Ouyang1, c,Qiuhui Yang2, Aimei Chen1, Wenru Li1, Xiulin Shu1, Jing Feng1, Jin Feng1 and Yiben Chen1 1Guangdong Provincial Key Laboratory of Microbiol Culture Collection and Application, Guangdong Institute of Microbiology, Guangzhou Guangdong, 510070, China 2Department of Chemistry, Jinan University, Guangzhou Guangdong, 510632, China ashiqingshan@hotmail.com, btanshaozao@163.com, couyang6411@21cn.com Keywords: Copper-carried zirconium phosphates, Ion-exchange method, Structure, Antibacterial activity.
In order to improve the antibacterial activity, here we prepared CuZrPs of high copper content, and the structure and antibacterial activity of CuZrPs were also investigated.
The crystal structure of ZrP and CuZrPs was characterized with a MSAL-XD2 X-ray diffractometer (40 kV, 40 mA, Cu Kα, λ= 0.1541nm).
Table 1 The results of EDX analysis for ZrP and CuZrPs Samples Cu content /mass% Atomic% Cu Na Zr P O ZrP 0 0 8.80 12.11 19.03 60.06 CuZrP-1 5.84 2.64 2.47 11.35 18.42 65.12 CuZrP-2 7.87 3.75 0.76 12.40 20.57 62.52 CuZrP-3 10.86 5.77 0.59 14.90 24.99 53.75 CuZrP-4 11.03 5.95 0 15.52 25.18 53.35 The crystal structure of CuZrP-3 was shown in Fig. 1.
The structure of the cell wall of the gram-negative strain (E. coli) was much more complicated than that of the gram-positive species (S. aureus), because there was another layer outside the peptidoglycan layer called the outer membrane that was composed mainly of lipopolysaccharides and phospholipids.
Online since: October 2010
Authors: Serena Gagliardi, Rossella Giorgi, M. Federica de Riccardis, Leonardo Giorgi, Elena Salernitano, Theodoros Dikonimos, Nicola Lisi, Marco Alvisi
Mathematics, Physics and Chemistry, 57 (2006)][ref, L.Giorgi, E.
The large surface and opening structure enhance the interaction between pCNFs and the electrocatalyst with an increase of the catalytic activity toward the methanol oxidation.
Mathematics, Physics and Chemistry, 57 (2006) [1] Dj.M.
Jónsson, in: Theoretical Methods in Condencsed Phase Chemistry, edited by S.D.
Schwartz, volume 5 of Progress in Theoretical Chemistry and Physics, chapter, 10, Kluwer Academic Publishers (2000)
Online since: August 2013
Authors: Zong Rui Hao, Hai Yan Bie, Zhao Yuan Bai
The effect and flow field characteristics of oil booms with different structures Zongrui Hao1, a, Haiyan Bie2, b, Zhaoyuan Bai2 1 Institute of Oceanographic Instrument of Shandong Academy of Science, Qingdao, 266001, China 2 College of Chemistry and Chemical Engineering of Ocean University of China, Qingdao, 266100, China ahaozr001@sina.com, bsalany001@163.com Keywords: Oil boom, Two phase flow, Drag speed, failure Abstract: In order to study the effect of oil boom gate under different towing speeds, the standard k-ɛ model is combined with the VOF multiphase flow model to analyze the flow field morphology of towage state.
Computing model According to the designed structure, the numerical calculation model is established.
(a) the monomer oil boom (b) the double oil boom Fig. 1 Computational grid structure of the model In the actual situation, the flow is turbulent in the oil collecting process.
Online since: May 2014
Authors: Guang Ming Wu, Guang Jian Xing, Hong Li Guo, Peng Li
The results showed that the reaction time affects the structure and morphology of the CdLa2S4 products.
Therefore, controlling the shape, size, and structure of inorganic nanomaterials has attracted considerable attention in recent years [5].
Among various strategies for controlled synthesis, the “soft chemistry” route, which is based on a solution process, is an effective method for the chemical synthesis of nanostructural materials with well-controlled shapes, sizes, and structures.
The reaction conditions influencing the synthesis of these CdLa2S4 structures, such as reaction time, were investigated.
The reaction time has significant effect on the structure and morphology of the CdLa2S4 microspheres.
Online since: December 2013
Authors: Hua Li, Li Li Feng, Bi Hao Lan, Lu Zhang, Hui Ying Chen, Ling Yu Tan, Xiao Ye Hong
Lei, Silicon dioxide hollow microspheres with porous composite structure: Synthesis and characterization, Journal of Colloid and Interface Science, 362 (2011) 253-260
Zhang, Synthesis of Uniform Porous Silica Microspheres with Hydrophilic Polymer as Stabilizing Agent, Industrial & Engineering Chemistry Research, 49 (2009) 602-608
Golberg, Inorganic semiconductor nanostructures and their field-emission applications, Journal of Materials Chemistry, 18 (2008) 509-522
Zamani, Dielectrophoretic assembly of ZnO nanorods for gas sensing, Procedia Chemistry, 1 (2009) 947-950
Lee, Bacterial cell manipulation by dielectrophoresis on a hydrophobic guide structure, Electrochemistry Communications, 13 (2011) 600-604
Online since: October 2020
Authors: Eleni Pavlidou, Alexandros Prospathopoulos, Nikolaos Michailidis
This is because almost all man-made structures rely on the stability of a 1 to 2 nm thick passive film which provides stability to the underlying material.
As a result, this platform was identified as ideal structure for attaching various nano/micro particles [5].
These new kinds of coatings also confer a plethora of functionalities to the coated materials owing to the complex chemistry of the catechol quinone moieties present on the surface of polydopamine.
KTH Royal Institute of Technology, School of Chemical Science and Engineering, Department of Chemistry, Division of Surface and Corrosion Science.
Messersmith, Mussel-Inspired Surface Chemistry for Multifunctional Coatings.
Online since: October 2010
Authors: Jun Xiao, Kai Ke, Hong Bo Tan, Bao Guo Ma
d=0.274nm d=0.303nm d=0.278nm d=0.261nm d=0.219nm d=0.176nm ☆:C3S ▽:C2S ☆ ☆ ☆ ▽ ☆ ☆ ▽ ▽ ▽ ▽ ☆ ▽ ☆ ▽ ☆ ▽ ☆ ▽ ☆ ▽ ☆ ▽ ☆ ▽ ☆ O2 O5 O4 O6 B Fig.3 XRD of C3S samples through down quenching d=0.274nm ☆:C3S ▽:C2S ☆ ☆ ☆ ▽ ☆ ☆ ▽ ▽ ▽ ▽ ☆ ▽ ☆ ▽ ☆ ▽ ☆ ▽ ☆ ▽ ☆ ▽ ☆ ▽ ☆ d=0.303nm d=0.278nm d=0.261nm d=0.219nm d=0.176nm O2 O5 O4 O6 B Fig.4 XRD of C3S samples through furnace quenching (5) Solidifying form of Co2O3 in C3S In conditional C3S crystal structure[9][10], rCa2+/ rO2-=99/132=0.75, Ca united with O to form [CaO6] octahedron; rSi4+/ rO2-=41/132=0.31, Si united with O to form [SiO4] tetrahedron.
So Co2+ can also solidified in octahedron cavity with the gap filling form, and because the valence state of Co2+ was inconsistent with Ca2+ and Si4+, it was inevitable to import imbalance of electrical valence,and then produced deficiency in crystal structure of C3S
Inorganic material physical chemistry [M], in Chinese.
[10]H.F.W.Taylor,Cement chemistry, Thomas Telford Ltd,2nd edtion,London,1997:6-7 [11]Guinier A.
Strueture of cement minerals,Prodeedings of the 5th international symposiums on the chemistry of cement, Tokyo, 1968:l-48; [13] Kazuyori Urabe, Hiromi Nakano.
Online since: May 2012
Authors: Zong Qiang Zhu, Yi Nian Zhu, Xin Zhao, Tao Zhu, Jiao Li
Fluorine tends to reduce the crystal size and increases stability of the apatite structure.
This is due to lattice constant decrease with the increasing mole fraction of P and As in the solid solution, and lead to compact structure, so the smaller Ksp.
Doctoral Thesis, Depart- ment of Chemistry, Umeå University, Sweden (2007)
Aquatic chemistry.
Elmore: submitted to Journal of Physical Chemistry (1962)