glass and glass ceramic synthesis and properties
Vertically Aligned WO3Nanowire ArraysGrown Directly on Transparent ConductingOxide Coated Glass: Synthesis andPhotoelectrochemical Properties
... is obtained We find a band gap value for the unannealed nanowire samples of 3.14 eV, and 2.92 eV when annealed For NF1 films we find a band gap value of 2.82 eV for unannealed and 2.61 eV for annealed ... the unannealed samples and 2.51 eV when annealed de Wijs and de Groot reported that for WO3 a larger band gap is obtained with inferior crystallization,42 hence the 0.2 eV band gap decrease with ... thickness and height of 5-6 µm Figure is a digital photograph of the different as-prepared and annealed films Figure shows the XRD patterns of the three film morphologies as-synthesized, and after...
Ngày tải lên: 20/03/2014, 13:11
Zinc Oxide Nanostructures: Synthesis and Properties
... nanostructures Issues of synthesis methods, structural, electrical, optical, magnetic and gas sensing properties are summarized Synthesis of ZnO Nanostructures 2.1 Vapor Transport Synthesis The most ... to the vapor transport synthesis of ZnO nanostructure, and also employ less rigorous synthesis conditions and provide great potential for device applications Physical Properties of ZnO Nanostructures ... physical properties of ZnO nanostructures, including mechanical, piezoelectric, electrical, optical, magnetic and chemical sensing properties Table Physical properties of wurtzite ZnO Properties...
Ngày tải lên: 28/04/2014, 15:06
files lectures nanotechnology synthesis structures and properties
... 0,1,2 and 3; the materials of interest include metals, amorphous and crystalline alloys, semiconductors, oxides, nitride and carbide ceramics in the form of clusters, thin films, multilayers, and ... compounds that surely will be used in future technologies and applications Before the first synthesis and detection of the smaller fullerenes C60 and C70, it was generally accepted that these large ... Thomas, 199 7and Saito et al., 1993]: Ch = n*a1 +m*a2 (1.1) The so-called chiral vector of the nanotube, Ch, where a1 and a2 are unit vectors in the two-dimensional hexagonal lattice, and n and m are...
Ngày tải lên: 28/05/2014, 15:03
Báo cáo hóa học: " Glassy State Lead Tellurite Nanobelts: Synthesis and Properties" docx
... [PbO6] octahedra and [OPb4] and [PbO4] tetrahedra form and enter [TeO4] and [TeO3] network, and forms glass phase when the system cools down, because PbO can function as outside body or glass adjusting ... distribution, and reproduction in any medium, provided the original author(s) and source are credited 123 1350 References R.A.F El-Mallaway, Tellurite Glasses Handbook: Properties and Data (CRC, ... accompanied by endothermic and exothermic phenomena For the tellurite glass, the glass transition temperature (Tg) gives information on both the strength of interatomic bonds and the glass network connectivity,...
Ngày tải lên: 21/06/2014, 17:20
Báo cáo hóa học: " Synthesis, Optical Properties, and Photocatalytic Activity of One-Dimensional CdS@ZnS Core-Shell Nanocomposites" pdf
... ZnS has a wider band gap (Eg = 3.7 eV) than CdS The surface modification of a wide band gap semiconducting shell around a narrow band gap core can alter the charge, functionality, and reactivity ... mono˚ chromator and Cu Ka radiation (k = 1.5418 A) in the range of 15–80° at room temperature while the tube voltage and electric current were held at 40 kV and 20 mA The morphology and microstructure ... functional groups, or additional covalent and/ or noncovalent interconnectivity for the growth of ZnS onto CdS nanowires in our experiments The optical properties and photocatalytic activities of the...
Ngày tải lên: 22/06/2014, 01:20
Báo cáo hóa học: " Sulfonated Styrene-(ethylene-co-butylene)-styrene/ Montmorillonite Clay Nanocomposites: Synthesis, Morphology, and Properties" docx
... morphology and reflected in its properties Hydrophilic MT clays have been better dispersed and intercalated in these SSEBS matrices and MT clay-based nanocomposites exhibit enhanced mechanical and thermal ... between MT clay structure and pendant sulfonated polystyrene group (shown in Scheme 2) in sulfonated SEBS The peaks for H bonded –OH band near 3,430 cm-1 and the peaks at 523 and 466 cm-1 for MT clay ... hybrid nanocomposite Stress–strain Properties of Resulting SSEBS and their MT4-Based Nanocomposites High-strain mechanical properties of neat SEBS, sulfonated SEBSS, and their MT clay-based nanocomposites...
Ngày tải lên: 22/06/2014, 06:20
design, synthesis, and properties of new derivatives of pentacene and new blue emitters
Ngày tải lên: 13/11/2014, 09:31
Protein-based surfactants synthesis, physicochemical properties, and applications
... interfaces and naturally occurring protein surfactants Chapter discusses amino acid surfactants, their chemical synthesis and physicochemical properties Chapters and discuss enzymatic approaches to synthesis ... Chemistry, Synthesis, and Properties 75 Jiding Xia, Ifendu A Nnanna, and Kazutami Sakamoto Enzyme-Catalyzed Synthesis of Protein-Based Surfactants: Amphoteric Surfactants 123 Yasuki Matsumura and Makoto ... Preface sidered biodegradable, nontoxic, and nonirritating and, in some cases, they have antimicrobial properties Information on the preparation, structure, and properties of PBS is found mostly in...
Ngày tải lên: 06/05/2015, 07:49
ZnO based materials hydrothermal synthesis, material properties and a study on hydrogen effect
... better control and understanding of H effect in ZnO is of great technological interest This thesis focused on hydrothermal synthesis, ferromagnetic and luminescent properties, and hydrogen effect of ... charged, singly charged, and neutral zinc vacancies, respectively Zni and Zni+ represent neutral and singly charged zinc interstitials, respectively VO and VO+ denotes neutral and singly charged oxygen ... charged, singly charged, and neutral zinc vacancies, respectively Zni and Zni+ represent neutral and singly charged zinc interstitials, respectively VO and VO+ denotes neutral and singly charged oxygen...
Ngày tải lên: 09/09/2015, 10:15
DESIGN, SYNTHESIS AND PROPERTIES OF METAL COMPLEXES AND COORDINATION POLYMERS FOR 2+2 PHOTO CYCLOADDITION REACTIONS
... current and previous friends in Singapore, Anand, Durga, Deva, Gopal, Dr Vasu, Venu and many more for their help and association I want to pay my deep regards and gratitude to all my teachers and ... C-Hπ and C-HX in solid state and their properties in solid state and their role in the design and synthesis of organic solids during his studies in the late 80’s and early 90’s showed the promising ... CPs and its photo reactivity which are synthesized from using Cd2+, 1,4-benzenedicarboxylate as linker and 4spy and its derivatives as photoreactive ligand Among these, the CP with 4spy ligand...
Ngày tải lên: 09/09/2015, 11:15
Synthesis, physical properties and applications of bisanthene based near infrared dyes and semiconductors
... photophysical and electrochemical properties of compounds 24, 2-5 and 2-6…………………… ………………………………………………….35 Table 3.1 Summary of photophysical and electrochemical properties of ODI and ODICN……………………………………………………………………………………59 ... solar cells, and sensors.3 Fundamental contributions to the directed synthesis and characterization of PAHs were pioneered by R Scholl, E Clar, and M Zander et al., who achieved the synthesis of ... ……….25 2.2.2 Photophysical Properties and Theoretical Calculations………………… 27 2.2.3 Photostability and Thermal Stability……………………………… …….29 2.2.4 Electrochemical Properties and Chemical Oxidation Titration………...
Ngày tải lên: 10/09/2015, 08:38
Synthesis, physical properties and biradical characters of zethrene based polycylic hydrocarbons 2
... blue and red color denote negative and positive charges, respectively 2.2.3 Photophysical and electrochemical properties Both compounds 2-3 and 2-8 are soluble in common organic solvents and 2-3 ... zethrene and its derivatives can be used as useful building blocks for non-linear optical materials and NIR dyes.8 Despite all of these attracting properties and promising applications, zethrene and ... the synthesis, reactivity, photophysical and electrochemical properties and theoretical calculations will be discussed Figure 2.1 Structures of zethrene 2-1, 7,14-disubstituted zethrene 2-2 and...
Ngày tải lên: 10/09/2015, 09:28
Synthesis, physical properties and biradical characters of zethrene based polycylic hydrocarbons 1
... the synthesis and properties of a novel zethrene bis(dicarboximde) compound are presented This molecule exhibits good stability and solubility compared to parent zethrene, and represents good candidate ... electrochemical properties of compounds 2-3 and 4-3 Table 5.1 Photophysical and electrochemical properties of compounds 5-1 and 5-2 ix List of Figures Figure 1.1 Examples of low band gap PHs Figure ... and discussion 82 5.2.1 Synthesis 82 5.2.2 Variable-temperature 1H NMR, ESR and SQUID measurements 83 5.2.3 X-ray single crystal analysis and theoretical calculations 86 5.2.4 Photophysical properties...
Ngày tải lên: 10/09/2015, 09:30
Cu(II) and Ni(II) complexes of n (2 hydroxybenzyl) amino acid ligands synthesis, structures, properties and catecholase activity 4
... hydrogen bonding with aqua ligands The other two water molecules O(17) and O(18) are found to propagate the hydrogen bonding both with the helical water chain and aqua ligands and it appears that their ... HSglu2- ligand coordinated through phenolic oxygen atom (Ni(1)-O(1), 2.089(4) Å and Ni(2)-O(6), 2.101(3) Å) and secondary amine N atom (Ni(1)-N(1), 2.084(4) Å; Ni(2)-N(2), 2.082(4) Å) and the α-carboxylate ... (Ni(1)-O(2), 2.047(4) Å and Ni(2)O(7), 2.042(4) Å) in a facial manner, two aqua ligands and another carboxylate oxygen from the neighboring molecule Selected bond lengths and bond angles are given...
Ngày tải lên: 15/09/2015, 17:10
Cu(II) and Ni(II) complexes of n (2 hydroxybenzyl) amino acid ligands synthesis, structures, properties and catecholase activity 3
... III-6 and 3D hydrogen bonded supramolecular structure in III-7 176 Chapter Figure 3-1 Ligands employed for complexation 3-2 Results and discussion The ligands H3Sas, H3Sglu, H3MeSglu, H2Smet and ... range of 670-720 nm and the ligand to metal CT bands in the range of 376-406 nm In general, the d-d transitions and charge transfer transitions occur in the range of 650-730 nm and 360-420 nm respectively ... base ligands containing the amino acid side arms with reactive functional groups –COO-, SCH3 and –CONH2 have been isolated and their Cu(II) and Ni(II) complexes have been synthesized and characterized...
Ngày tải lên: 15/09/2015, 17:10
Cu(II) and Ni(II) complexes of n (2 hydroxybenzyl) amino acid ligands synthesis, structures, properties and catecholase activity 2
... DMF solution and nujol mull are shown in Table 2-18 The absorption bands observed in the range 620703 nm correspond to d-d transitions and strong bands at 358-402 nm are due to ligand-to-metal ... oxidations and to understand the influence of various parameters that determine bimetallic reactivity both in natural metalloenzymes and in synthetic analogues, studies of the well defined and appropriate ... rigidity of the ligand or the bridging moiety imposing strain in the complex have also been found to play a role.11j 59 Chapter Part A Synthesis, Characterization, Structural Properties and Catecholase...
Ngày tải lên: 15/09/2015, 17:10
Cu(II) and Ni(II) complexes of n (2 hydroxybenzyl) amino acid ligands synthesis, structures, properties and catecholase activity
... Parts A and B Part-A 48 Synthesis, Characterization, Structural Properties and Catecholase Activity of Dicopper(II) Complexes of reduced Schiff base Ligands 2-A-1 Introduction 61 2-A-2 Results and ... radioprotective, cytotoxic (inhibitor of DNA synthesis and cell growth) and antitumour properties, the chemistry of Schiff base ligands such as H2Sb and H2Sa etc, (Figure 1-7) has been well documented ... Schiff base ligands containing glycine and alanine in presence of 2,2’-bpy as co-ligand exhibiting interesting magnetic properties. 65 Further, by employing a simple chiral ligand, H2Sala and rigid...
Ngày tải lên: 15/09/2015, 17:10
Novel fluorescent fluorenyl carbazolyl pyridinyl alternating copolymers synthesis, characterization and properties
... 3.2.2 Measurements 29 3.2.3 Synthesis 30 Result and Discussion 33 iii 3.4 3.3.1 Synthesis and Characterization 33 3.3.2 Optical Properties 35 3.3.3 Electrochemical Properties 40 Conclusion 43 ... Copolymers: Synthesis and Characterization 48 4.1 Introduction 49 4.2 Experimental Part 50 4.3 4.4 4.2.1 Materials 50 4.2.2 Measurements 51 4.2.3 Synthesis 52 Result and Discussion 57 4.3.1 Synthesis and ... 73 5.2.2 Measurements 73 5.2.3 Synthesis 74 Result and Discussion 80 5.3.1 Synthesis and Characterization 80 5.3.2 Optical Properties 82 5.3.3 Electrochemical Properties 87 Conclusion 90 References...
Ngày tải lên: 27/11/2015, 11:11
The Dictionary, Hashtable, and Properties Classes
... the new properties list, the value for the key from the defaults set will be returned 64 Using Properties public Properties( ) public Properties( Properties defaults) Instances of the Properties ... VARIABLE/METHOD NAME Properties( ) getProperty() VERSION 1.0 1.0 DESCRIPTION Constructs a properties list Retrieves a value for a key in the properties list list() 1.0 Lists all the properties and their ... primary tasks of working with properties are setting and getting You can also load them from an input stream or save them to an output stream Setting and Getting Elements The Properties class has a...
Ngày tải lên: 05/10/2013, 12:20
Tài liệu Nature and Properties of Micro-organisms doc
... Gram positives: synthesis is target for penicillins, cephalosporins and vancomycin lipoteichoic acid, septic shock Beta-lactamases hydrolyse penicillins and cephalosporins secreted ... stained urethral discharge The image shows many polymorphonuclear leukocytes (PMNs) and gram-negative extra- and intra-cellular diplococci (1,000X oil) Pneumococci in sputum Other important bacteria ... components 1: (endo)spores usually Bacillus spp and Clostridium e.g Clostridium tetani (tetanus) spore is a resting cell, highly resistant to desiccation, heat and chemical agents produced in response...
Ngày tải lên: 12/12/2013, 17:15