Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Fractal Dimensions of Niobium Oxide Films Probed by Protons and Lithium Ions
View through Europeana Collections
Cyclic voltammetry (CV) and atomic force microscopy (AFM) were used to determine fractal surface dimensions of sputter deposited niobium pentoxide films. Peak currents were determined by CV measurements. Power spectral densities obtained from AFM measurements of the films were used for calculating length scale dependent root mean square roughness. In order to compare the effect of Li and H ion intercalation at the fractal surfaces, LiClO4 based as well as propionic acid electrolytes were used. The CV measurements gave a fractal dimension of 2.36 when the films were intercalated by Li ions and 1.70 when the films were intercalated by protons. AFM measurements showed that the former value corresponds to the fractal surface roughness of the films, while the latter value is close to the dimensionality of the distribution of hillocks on the surface. We conclude that the protons are preferentially intercalated at such sites.
Title: Fractal Dimensions of Niobium Oxide Films Probed by Protons and Lithium Ions
Description:
Cyclic voltammetry (CV) and atomic force microscopy (AFM) were used to determine fractal surface dimensions of sputter deposited niobium pentoxide films.
Peak currents were determined by CV measurements.
Power spectral densities obtained from AFM measurements of the films were used for calculating length scale dependent root mean square roughness.
In order to compare the effect of Li and H ion intercalation at the fractal surfaces, LiClO4 based as well as propionic acid electrolytes were used.
The CV measurements gave a fractal dimension of 2.
36 when the films were intercalated by Li ions and 1.
70 when the films were intercalated by protons.
AFM measurements showed that the former value corresponds to the fractal surface roughness of the films, while the latter value is close to the dimensionality of the distribution of hillocks on the surface.
We conclude that the protons are preferentially intercalated at such sites.
Related Results
Low Voltage Anodes for Lithium-Ion Batteries
Low Voltage Anodes for Lithium-Ion Batteries
Graphite has proved a highly successful anode for lithium ion batteries; however it is not without its limitations. There is intensive research to perfect silicon based anodes but ...
Low Voltage Anodes for Lithium-Ion Batteries
Low Voltage Anodes for Lithium-Ion Batteries
Graphite has proved a highly successful anode for lithium ion batteries; however it is not without its limitations. There is intensive research to perfect silicon based anodes but ...
Impact of Smoking and Vaping in Films on Smoking and Vaping Uptake in Adolescents: Systematic Review and Meta-Analysis
Impact of Smoking and Vaping in Films on Smoking and Vaping Uptake in Adolescents: Systematic Review and Meta-Analysis
Prevention of smoking uptake in young people is an essential public health target. We have previously reported a systematic review and meta-analysis of the effect of exposure to sm...
Effect of glycerol triglycidyl ether on the dimensional stability and flexibility of photographic gelatine films
Effect of glycerol triglycidyl ether on the dimensional stability and flexibility of photographic gelatine films
AbstractThe gelatine emulsions used in historical photographs can shrink and become brittle under alternating dry–wet environmental conditions, which would result in curling and fr...
Fractal objects and architecture
Fractal objects and architecture
This study focuses on fractality and its possible use in architecture. This dissertation is based on the concept of fractal as a “design that is repeated indefinitely each time in ...
French Westerns
French Westerns
There are hundreds of films that could be called both “French” and “western.” Their production spans the history of filmmaking, and celebrated stars and directors have worked in th...
Stop-motion to foster digital literacy in Elementary School
Stop-motion to foster digital literacy in Elementary School
Although digital media literacy is recognized as the essential competencies required for living in a new media age, it just starts to gain focus in Taiwan's elementary education. O...
Recent Results
Shallow Geophysical Techniques to Investigate the Groundwater Table at the Giza Pyramids Area, Giza, Egypt
Shallow Geophysical Techniques to Investigate the Groundwater Table at the Giza Pyramids Area, Giza, Egypt
Abstract. Geophysical studies were performed along selected locations across the Pyramids Plateau to investigate the groundwater table and the near aquifer, which harmfully affecte...
Florence Henri's Oblique
Florence Henri's Oblique
This essay considers Florence Henri's interwar photographic project from the standpoint of phenomenology. In doing so, it displaces the disinterested formalist framework that gener...
Commentaries
Commentaries
Commentaries are important research tools in the field of Hellenic studies: even those classicists who are most critical of them tend to use them frequently. More fundamentally sti...
Your session has timed out for security reasons.