M.Phil / MS
Permanent URI for this collectionhttps://repository.cuilahore.edu.pk/handle/123456789/60
This collection archives the complete set of theses produced by students of the COMSATS University Islamabad, Lahore Campus.
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Item Metallic Layers on Graphene based Paper Electrodes for Better Energy Storage Characteristics(Library Information Services, COMSATS University Islamabad, Lahore Campus, 2021) Iqra Manzoor; CIIT/SP19-RPH-030/LHR; Dr. Ishrat Sultana; LHR TP 7254This research aspires to have an unconventional and alternative source for flexible and bendable energy storage devices that have proved very useful to meet the demand of today’s energy crises. It is very interesting to use natural self-growing plant’s lignocellulose that are very abundant on earth and convert them in the form of paper-based electrodes. Fibers from Monochorea Vaginalis plant were taken and then dried, which were then treated in a solution to make flexible and smooth sheet. Scanning electron microscopy results presents the information about the surface morphology of naked sample, coated sample as well as composite with LC fibers. Addition of LC fiber makes the working electrode flexible, low cost and environmentally friendly for flexible energy storage applications. Poor conductivity of LC/graphene oxide based flexible sheets were addresses by the electrodeposition of metallic nanoparticles (i.e., Ni) on fabricated sheets (LC/graphene oxide). Electrochemical cyclic voltammetry measurements were performed. These fabricated composites can be used further as flexible electrodes in energy storage applications because of enhanced electrochemical properties.Item Fabrication and synthesis of Graphene Based Material through Microwave Assisted Method(Library Information Services, COMSATS University Islamabad, Lahore Campus, 2021) Ihsan Abbas; SP19-RPH -013; Dr. Ishrat Sultana; LHR TP 7235Graphene nanoparticles have been used at industrial level, coating and drug delivery. Due to quick response time it is used for solar panels. Presently, energy dearth around the globe arises as a paramount subject to be solved. The rapid demand of energy consumption leads the research direction towards development of highly functional energy devices along with ease of utility. Also the choice of high efficiency materials becomes a crucial counterpart analogue to other factors of device fabrication in energy applications. Modern industries are striving to achieve highly effective, in this study, Graphene sheets were prepared by microwave assisted method with variation in stirring time. The prepared material was characterized by XRD, SEM, Raman and CV.Item Facile Synthesis of ZnS Paper Based Composites by Electrodeposition of Metallic Layers for their Applications in Energy Storage Devices(Library Information Services, COMSATS University Islamabad, Lahore Campus, 2021) Asad Iqbal; SP19-RPH-015; Dr. Ishrat Sultana; LHR TP 7276Zinc Sulphide nanoparticles have been used in energy storage devices like electronics, batteries and hybrid automobile systems. Recently paper based materials are popular due to their flexibility. Lignocelluloses were extracted from Papaya plants that were grown naturally in this study. Six electrode samples for energy storage applications were produced. Single layer electrode position technique was used for LC/ZnS/Au and LC/ZnS/Ni. In this research study, ZnS nanoparticles were prepared by microwave assisted method with variation in stirring time. The prepared material was characterized by XRD, SEM, Raman spectroscopy,UV and CV.