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Full-Text Articles in Engineering
Synthesis Of High-Temperature Stable Anatase Tio2 Photocatalyst, Suresh Pillai, Declan Mccormack, Michael Seery, Pradeepan Periyat, Steven Hinder, John Colreavy, Reenamol George, Hugh Hayden
Synthesis Of High-Temperature Stable Anatase Tio2 Photocatalyst, Suresh Pillai, Declan Mccormack, Michael Seery, Pradeepan Periyat, Steven Hinder, John Colreavy, Reenamol George, Hugh Hayden
Articles
In the absence of a dopant or precursor odification, anatase to rutile transformation in synthetic TiO2 sually ccurs at a temperature of 600 700 °C. Conventionally, metal oxide dopants (e.g., Al2O3 nd SiO2 are used o tune the anatase to rutile transformation. A simple methodology is reported here to extend the anatase utile transformation by employing various concentrations of urea. XRD and Raman spectroscopy were used uring thermal treatment. A significantly higher anatase phase (97%) as been obtained at 800 C with use of a 1:1 Ti(OPr)4 urea composition and 11% anatase composition is etained even after calcining …
Comparison Of Two Optimal Control Strategies For A Grid Independent Photovoltaic System, Richard L. Welch, Ganesh K. Venayagamoorthy
Comparison Of Two Optimal Control Strategies For A Grid Independent Photovoltaic System, Richard L. Welch, Ganesh K. Venayagamoorthy
Electrical and Computer Engineering Faculty Research & Creative Works
This paper presents two optimal control strategies for a grid independent photovoltaic system consisting of a PV collector array, a storage battery, and loads (critical and non-critical loads). The first strategy is based on Action Dependent Heuristic Dynamic Programming (ADHDP), a model-free adaptive critic design (ACD) technique which optimizes the control performance based on a utility function. ADHDP critic network is used in a PV system simulation study to train an action neural network (optimal neurocontroller) to provide optimal control for varying PV system output energy and loadings. The second optimal control strategy is based on a fuzzy logic controller …
Efficient Dye Sensitized Solar Cells Based On A 2-Thiophen-2-Yl-Vinyl-Conjugated Ruthenium Photosensitizer And A Conjugated Polymer Hole Conductor, Attila Mozer, Y Wada, K-J Jiang, N Masaki, S Yanagida, Shogo Mori
Efficient Dye Sensitized Solar Cells Based On A 2-Thiophen-2-Yl-Vinyl-Conjugated Ruthenium Photosensitizer And A Conjugated Polymer Hole Conductor, Attila Mozer, Y Wada, K-J Jiang, N Masaki, S Yanagida, Shogo Mori
Australian Institute for Innovative Materials - Papers
Efficient dye-sensitized TiO2 solar cells based on a 2-thiophen-2-yl-vinyl-conjugated ruthenium photosensitizer and a conjugated polymer poly(3,4-ethylenedioxythiophene) have been fabricated. A maximum power conversion efficiency of 2.6% is achieved when the mesoporous TiO2 layer is 5–6 μm. The high fill factor (0.74), the open circuit voltage (0.78V), and the linear light intensity dependence of the short circuit current density (4.5mA cm−2 at 100 mW cm−2) make these devices promising for solid state photovoltaic applications.