Department of Physics

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Author: search.filters.author.Asifa KusarSubject: search.filters.subject.Dr. Muhammad Ashfaq Ahmad

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    Study of Quantum Effects and Porosity of the Perovskite Materials for Energy and Photocatalysis Applications
    (Library Information Services, COMSATS University Islamabad, Lahore Campus, 2022) Asifa Kusar; CIIT/FA20-RPH-007/LHR; Dr. Muhammad Ashfaq Ahmad; LHR TP 7972
    Energy conversion devices are widely being used to convert chemical into electrical. Fuel cell is the most prominent candidate among all the energy conversion devices. The operating temperature of conventional fuel cell is very high because of high electrolyte resistance. Develop better energy storage and conversion devices is the main goal of the scientists and engineers because of increasing global temperature due to consumption of fossil fuels. Fuel cell has potential and capability to give maximum energy without deteriorating environment. Electrode is the most important component of fuel cell because reaction takes place on it. Lanthanum and ferrite-based perovskite material are investigated quantum mechanically to find out the impact factor on working of SOFCs. Among the prepared samples the material with high concentration shows batter crystal structure, photocatalytic activity and improved conductivity. Samples have been investigated by various techniques showing considerable porosity, stability and Prescence of reactive metal cations like La+2, Sr+1, Cu+1 , Fe+2 and Fe+3 reveal the improved functionality of perovskites as they assist in conductivity, oxidation, reduction and catalytic process. Crystalline structure of the material is determined by XRD, energy band gap can be found by UV-Vis, vibrational characteristics and phase shift of the synthesized material can be found by Raman spectroscopy, materials used in synthesis can be confirmed by FTIR. Among various types of perovskites, the LSF perovskites are best performing material for photocatalytic applications while study of quantum effects reveals that LSCF second to them LCF are best optimized material for energy applications.