Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 16 of 16 for “"Voltammogram"”.
-
Empirical models for cyclic voltammograms
… output from their experiments as a cyclic<br/>voltammogram. A voltammogram is simply a plot of Current against Potential.<br/>In this thesis we investigate a range of empirical models for cyclic voltammograms<br/>with a Bayesian perspective, using data from experiments carried out in the …
-
Electrochemical investigation of platinum nanoparticles supported on carbon nanotubes as cathode electrocatalysts for direct methanol fuel cell
… toward oxygen reduction, observed from cyclic voltammogram in iv sulfuric acid. Pt/LPGMWCNT also showed better tolerance toward methanol, however it was not highly active towards methanol, and hence the methanol oxidation peak current observed between 0.75 and 08 potential was the smallest. In …
-
Rhenium(II) Complexes as Potential materials for Dye Sensitized Solar Cells
… appreciable emission around 600 nm. A cyclic voltammogram was obtained for the [Re(dppe)<sub>2</sub>Cl<sub>2</sub>]Cl complex, and it was determined that the first reduction of this compound is reversible. The preliminary data suggests that the [Re(ddppe)<sub>2</sub>Cl<sub>2</sub>]Cl compound …
-
Fabrication of smart glass electrochromic device using rf magnetron sputtering
… properties were characterized by a cyclic voltammogram and UV-Vis absorption spectra. The results show that nanocrystalline film with particle size of 51.54nm was deposited at 27% oxygen flow rate has the largest charge capacity and coloration efficiency among the others. The time respond …
-
THEORETICAL PREDICTIONS OF POTENTIALS FOR INTERMEDIATE STEPS IN METHANOL AND ETHANOL ELECTROCHEMICAL OXIDATION ON Pt(111)
… was also applied in predicting the cyclic voltammogram of underpotential deposited hydrogen Hupd on Pt (111). The predicted CV showed good agreement with experiment.
-
The synthesis and investigation of the electronic properties of crown ether, [2]-catenane, and [2]-rotaxane architectures
… between electrode phenomena and cyclic voltammogram waveshapes is included, in order to reinforce an understanding of the various electrochemical processes. Electroactive catenane and rotaxane supramolecules feature prominent in the literature, and a brief overview of significant …
-
Application of voltammetry to copper electrodeposition
… cathodes, gave characteristic and reproducible voltammograms. Shifts and relative differences between the polarization curves were also noted with changing temperature.</p> <p>The results of this investigation indicate that there is a definite correlation between type and concentration of …
-
N-heterocyclic Carbene Synthesis Towards Self-Assembled Monolayers on Gold
… monolayer of 50 on a gold electrode. The cyclic voltammogram revealed very minor features characteristic of the quinone moiety which indicates low molecular consistent with XPS results.
-
Comparative study of nanorods and nanoflowers TiO2 thin film for heterostructure application
… hours of fabrication process. Next, the Cyclic Voltammogram (CV) measurement was carried out to identify the deposition parameter of p-Cu2O on TiO2/FTO substrate. Correspond to the CV measurement, -0.4V vs Ag/AgCl of potential deposition were used to develop p-Cu2O on the TiO2 layer. The …
-
Analysis of antioxidant behaviour in lubricating oils
… stability of the oil blend, whereas the voltammogram obtained in CV is specific to certain groups of antioxidant. The value of the current flowing through the circuit reaches a maximum value at a potential specific to and dependant on the concentration of the additive being analysed. A …
-
Pulsatile Electropolishing of Nitinol Stents
… using SEM and AFM microscopes. Di_erential pulse voltammogram yielded a feedback parameter on surface composition, and various pulse parameters were adjusted to optimize for surface smoothness, and identify the primary control variable. An electropolishing method is presented which achieves a :50% …
-
Electrochemical Studies and Antimicrobial Properties of Synthesized Green Mediated Metal Oxide Nanoparticles
… evaluate their electrochemical properties. The Voltammogram obtained from the electrochemical characterization of the synthesized zinc oxide nanoparticles and iron oxide nanoparticles showed good electrochemical behaviour of the nanoparticles, which indicates that they can be used as …
-
The synthesis and characterization of a new kind of tagged Ru-Pt bimetallic DNA binding agent
… ion peaks [M-PF₆]⁺ and [M-2PF₆]⁺ . The cyclic voltammogram of all complexes show metal based oxidation(s) and ligand based reductions. The electronic absorption spectra of the complexes are characteristic of the lowest lying Ru to bridging ligand MLCT (metal to ligand charge transfer) …
-
Biocatalysis on nanostructured surfaces : investigation and application of redox proteins using spectro-electrochemical methods
… are displayed as a single peak in a square wave voltammogram. Protein mutants bearing a serine substituted to the cysteines, bounding to the most exposed iron sulfur cluster additionally showed direct electron transfer which can be attributable to this cluster. On the other hand a mediated …
-
Synthesis and properties of nanoparticulate titanium dioxide compounds
An electrolytic cell was designed and constructed for the preparation of TiO2 nanotubes. Conditions of anodic oxidation were established to reproducibly prepare TiO2 nanotubes of average length 35-50 μm vertically orientated relative to the plain of a pure titanium metal sheet. A non-aqueous …
-
Chemical approaches to the improved performance of nanoelectronic devices
… molecules remain intact on the surface. A cyclic voltammogram of the surface-modified gold electrode shows a redox process consistent with the presence of a Co(II/III) couple. STM and AFM images of the surfaces were collected on samples prepared by depositing CoTp2 species with various …