fabrication characterization and physical properties of nanostructured metal replicated membranes

... vapors into the metal particles, (ii) formation of liquid droplet of metal and Si/SiOx and (iii) the precipitation in the form of solid nanowires after super-saturation of liquid metal Si/SiOx ... of crystalline Si core and amorphous SiO2 outer shell structure as confirmed by HRTEM image and SAED pattern On the other hand, the formation of crystalline Si–SiO2 core-shell nanowires first and ... agglomerated clusters consisting of high density of nanowires The magnified view of a single cluster is depicted in the inset of Fig 2(d) These observations suggest that growth of nanowires in the present...

Ngày tải lên: 16/03/2014, 15:18

... properties to Program Offices (e.g., Office of Water, Office of Solid Waste and Emergency Response, Office of Prevention, Pesticides and Toxic Substances) and Regional Offices Also, SPARC has been used ... databases The strength of the electrostatic interaction between S and C depends on the magnitude and relative orientation of the local fields of S and C and the dielectric properties and distances through ... Effect 3.4.3.3 Temperature Effect 3.4.4 Results and Discussions 3.4.5 Conclusion PHYSICAL PROPERTIES 4.1 Estimation of Physical Properties 4.2 Physical Properties Computational Approach 4.3 SPARC...

Ngày tải lên: 22/03/2014, 14:20

... image and EDAX (Figure 4) spectrum of Ca10-xAgx(PO4)6(OH)2, with x = and 0.2, are shown The morphology of the nanoparticles of HAp and Ag: HAp was investigated by SEM SEM images provide the Page of ... results of XRD and TEM, the FTIR and FT-Raman spectra of the HAp show the absorption bands characteristic of hydroxyapatite XPS results provide the additional evidence for the successful doping of ... and composition of the samples Figure shows the survey XPS narrow scan spectra of Ag:HAp (x = 0.2) nanopowder obtained at 100°C and XPS narrow scan spectra of Ag element In the XPS spectrum of...

Ngày tải lên: 20/06/2014, 23:20

... Fabrication, characterization, and kinetic study of vertical single-crystalline CuO nanowires on Si substrates Shao-Liang Cheng*1 and Ming-Feng Chen1 Department of Chemical and Materials ... the metal oxides, cupric oxide [CuO] has been extensively studied as a p-type metal- oxide semiconductor It has a direct bandgap of about 1.2 to 2.0 eV and exhibits many excellent physical and ... characteristics and photovoltaic properties of cuprous oxide a review Solid-State Electron 1986, 29:7-17 Zhu HT, Han DX, Meng ZG, Wu DX, Zhang CY: Preparation and thermal conductivity of CuO nanofluid...

Ngày tải lên: 21/06/2014, 17:20

... Conversion/Selectivity (%) ð1Þ The effects of the process of segregation and de-mixing of these rare earths on the SnO2 catalytic properties were studied and compared In spite of the relatively low specific ... also by acidic sites of the oxide catalysts Thus, it may be suggested that the control of surfaces and modifications of the nanostructures of the tin oxide particles, undoped and doped with rare ... purity [99.9%) and citric acid (Merck, Germany, purity [99.9%) with a citric acid :metal molar ratio of 3:1 For the synthesis of the rare earth-doped SnO2 samples, an aqueous solution of a rare earth...

Ngày tải lên: 22/06/2014, 01:20

... composed of stannum and sulfur, and the ratio of the S atom and Sn atom is 1:0.985, which just accords with the stoichiometric ratio of SnS The representative optical absorption spectrum of the ... = and 2/3 for direct allowed and forbidden transitions, respectively, and n = 1/2 and 1/3 for indirect allowed and forbidden transitions, respectively Figure shows curves of (ahm)2 versus hm of ... 361 Fig SEM images of AAO template and SnS nanowire arrays a Typical SEM image of AAO template b and c The top view in a low magnification d SEM image of a typical crosssection and uniformly distributed...

Ngày tải lên: 22/06/2014, 01:20

... Study the effects of crystallinity on the physical properties of the PEAs  Prepare a PEA with an ester to amide ratio of 4:1 in order to model the trend observed in the physical properties versus ... biodegradability of PEAs with varying ratios of ester to amide groups  Increase the molecular weights of the synthesized PEAs to further improve the thermal and mechanical properties (such as ... increased elasticity The increase of ester to amide ratio in PEA structure will diminish the mechanical strength of the polymer Synthesis of the PEA Step 1: Synthesis of different diols from oleic...

Ngày tải lên: 02/07/2014, 13:01

Ngày tải lên: 14/11/2014, 07:13

... Portland Cement 2.2 Physical properties of MTA 2.3 Biological Properties of MTA 13 2.4 Comparison of White and Gray MTA 20 2.5 Comparison between MTA and ... STUDY OF THE BIOLOGICAL AND PHYSICAL PROPERTIES OF VISCOSITY ENHANCED ROOT REPAIR MATERIAL (VERRM) AND MTA PALLAVI UPPANGALA (BDS RGUHS, India) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF SCIENCE ... antimicrobial and antifungal properties similar to that of super-EBA and ZOE (Torabinejad et al 1995d, Al-Nazhan & Al-Judai 2003) The cytotoxic properties of MTA were lower than that of IRM and super-EBA...

Ngày tải lên: 15/09/2015, 22:51

... Research on fabrication and the physical properties of the multi-component ceramics based on PZT and the relaxor ferroelectric materials The objective of the thesis is: (i) Fabrication and research ... systematic research of the dielectric, piezoelectric and ferroelectric properties contribute further understanding of the physical properties of the multi-component ceramics based on PZT and the relaxor ... EFFECTS OF CuO, Fe2O3 ON PROPERTIES OF PZTPZNPMnN CERAMICS 4.1 Effect of Fe2O3 on properties of PZT-PZN-PMnN ceramics To improve the mechanical quality factor Qm and dielectric loss tan of PZT-PZN-PMnN...

Ngày tải lên: 04/12/2014, 02:54

... fine-tune the physical properties of such materials Phthalocyanines are capable of incorporating more than 70 different metallic and nonmetallic cations in their ring cavity A wide variety of substituents ... electropolymerization and analyze their properties chemically and physically 33 3) Study Electrochemical Impedance Spectroscopy (EIS) analysis and field emission properties of MTAPc nanowires and nanotubes ... Therefore, the properties of nanostructures can be widely adjustable by changing their size, shape and processing conditions Nanostructures of metals, semiconductors, and inorganic and organic polymers...

Ngày tải lên: 14/09/2015, 14:08

... bottom of the conduction band; EF the Fermi level; XS the work function and XSO the electron affinity Figure 4-2: Energy band diagram of metal and semiconductor contact Figure 4-3: Energy band diagram ... the physical properties of the MoO3 nanobelts and attempt to find its correlation with the optical properties Chapter 1: Introduction • Study the electrical properties of MoO3 nanobelts and investigate ... characteristics of the effect of O2 on MoO3 nanobelt Figure 5-4: I-V characteristics of the effect of NH3 on MoO3 nanobelt Figure 5-5: Comparison of the effect of different chamber pressures of ammonia...

Ngày tải lên: 16/10/2015, 15:37

... values) of Ni(II) and Cu(II) complexes of peptides at I = 0.1 M (KNO3) and 25 C Standard deviations on the last digits are given in parentheses EPR The X-band EPR spectra of Cu(II) complexes of VIHN ... interpretation and modelling of Cu(II) and Ni(II) transport by albumins On the other hand, the direct thermodynamic and kinetic characterization of Ni(II) binding at site I in HSA and BSA was obtained ... (1984) Characterization of the copper (II) and nickel (II)-transport site of human serum albumin Studies of copper (II) and nickel (II) binding to peptide 124 of human serum albumin by 13C and 1H...

Ngày tải lên: 22/02/2014, 04:20

... and utilization The physical and mechanical properties of bamboo vary with the age of the bamboo and the height of the culm [Chauhan 2000] In general, SG and the properties of bamboo drop from ... on the physical properties of pulp [Tamolong 1967; Zamuco et al 1969] Aging of a bamboo culm influences physical, chemical, and mechanical properties, and consequently its processing and utilization ... bending properties, along longitudinal and radial directions of one, three, and five year old bamboo and determine the correlation between SG and bending properties, and (5) compressive strength of...

Ngày tải lên: 22/02/2014, 09:20

... reduction of the semireduced to the reduced and EPR silent state of the FeMo cofactor [45] DISCUSSION The FeMo cofactor, one of the two unique metal clusters present in the MoFe protein component of ... component of nitrogenases contains two types of unique metal clusters, the so-called M-cluster (FeMo cofactor, FeV cofactor, FeFe cofactor), which represents the site of substrate reduction [11], and ... titration of the cofactor and P-cluster EPR signals deriving from the MoFe protein of R capsulatus The redox titration was performed as described in Materials and methods The sample contained 12 mg MoFe...

Ngày tải lên: 18/03/2014, 01:20

Ngày tải lên: 02/04/2014, 16:04

... the difference of cell configurations and the quality of the dye However, in the same condition, the conversion efficiency of sea urchin-like ZnO nanostructures is superior to that of ZnO nanorod ... pattern (a) and UV–visible optical absorption characteristics (b) of the sea urchin-like ZnO nanostructures Fig SEM images (a,b), TEM image (c), HRTEM image (d) and SAED pattern (e) of the sea ... analysis results of Fig 2d For analyzing the photoelectric properties of the sea urchin-like ZnO nanostructures, simple battery devices were fabricated Fig shows the I–V curve of the sea urchin-like...

Ngày tải lên: 06/05/2014, 13:23

... details Laboratory of Condensed Matter Spectroscopy and Opto-Electronic Physics, and Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Department of Physics, Shanghai ... optical response of InP(100) membranes Phys Rev B 2005, 71:081306 31 Hasegawa H, Sato T, Kaneshiro C: Properties of nanometer-sized metal ± semiconductor interfaces of GaAs and InP formed by ... conductivity of n-type porous InP template In other words, the deposition of metallic Co particles may occur at any position of the pore sidewall surface of InP template (as shown by the schematic of Figure...

Ngày tải lên: 21/06/2014, 04:20

... in the fabrication of cobalt nanowires inside an APA template [9] In this work, we report on the use of ILs in the fabrication and characterization of APA, starting from a well-known APA fabrication ... reaction in spite of the oxalic acid and/ or water oxygen, and the latter being very easily soluble in water Sample Characterization The APA outer and inner surfaces were imaged by means of atomic force ... results of a morphological analysis of the outer APA surface of the samples fabricated during the anodizations of Fig are displayed By means of AFM, both the outer pore mouth diameter dout and the...

Ngày tải lên: 22/06/2014, 00:20

... models of wood behaviour, a low value for MFA should result in (i) a high value of specific modulus of elasticity, (ii) a higher value of tangential and radial shrinkage, (iii) a low value of longitudinal ... decided to select 10 trees presenting clear sectors of reaction wood, with the widest possible diversity and to measure the physical and mechanical properties in the tension wood sector as compared ... Wood properties from tropical species 505 Figure Localization of specimen (disk and rods) used for the experiments 2.5 Air dry longitudinal modulus of elasticity The longitudinal modulus of elasticity...

Ngày tải lên: 07/08/2014, 16:21