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Title: Fabrication of hybrid metal metal oxide nanostructured catalysts for electrochemical applications
Researcher: Sahaya Murphin Kumar P
Guide(s): Sivakumar T
Keywords: Electrochemical
Hybrid Metal
Nanostructured Catalysts
Physical Sciences,Chemistry,Electrochemistry
University: Anna University
Completed Date: 2018
Abstract: Sequestration of CO2 and its conversion into useful chemicals is the subject of research in the past few decades. CO2 capture and its electro chemical reduction into CO in aqueous electrolytes has attracted many due to its economic feasibility and application as feed stock for Fisher-Tropsch process. However the CO2 reduction results in poor conversion, less selectivity and hence not efficient. Therefore numerous efforts have been put to identify efficient electrocatalysts which can convert CO2 into the desired CO. The electrocatalysts at the same time should decrease/stop the evolution of hydrogen. Hence the combination of noble metals such as Au, Pt, Pd and Ag with oxides of metals such as Zn, W, Ti, Cu, Mn, Ce, Er, Ru, etc have been tried as electrocatalysts. In the present work the noble metals such as Au and Pt were coupled with some metal oxides such as EuOx, CeO2 and TiO2 to fabricate the electrodes. The catalytic activity of these electrodes, in general, is enhanced when such metal/metal oxides are present as nanostructured materials. newlineAlthough several synthetic strategies are available in the literature to prepare nanostructures they fail miserably for getting favorable structure, shape and orientation. Therefore a cost effective and an ecofriendly approach has been adopted to obtain metal/metal oxides nanohybrid structures. The biosynthetic method utilizes the seaweed (Turbinariaconoides) extract to synthesize the nanostructure of Pt/CeO2 and Pt/TiO2. In addition Au-ErOx and Au-Fe nanohybrid structures were also synthesized. newline newline
Pagination: xxiii, 129p.
Appears in Departments:Faculty of Science and Humanities

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02_certificates.pdf463.53 kBAdobe PDFView/Open
03_abstract.pdf7.43 kBAdobe PDFView/Open
04_acknowledgement.pdf4.47 kBAdobe PDFView/Open
05_contents.pdf41.26 kBAdobe PDFView/Open
06_list_of_symbols and abbreviations.pdf22.26 kBAdobe PDFView/Open
07_chapter1.pdf234.21 kBAdobe PDFView/Open
08_chapter2.pdf354.22 kBAdobe PDFView/Open
09_chapter3.pdf1.18 MBAdobe PDFView/Open
10_chapter4.pdf1.1 MBAdobe PDFView/Open
11_chapter5.pdf1.07 MBAdobe PDFView/Open
12_chapter6.pdf697.86 kBAdobe PDFView/Open
13_conclusion.pdf47.17 kBAdobe PDFView/Open
14_references.pdf98.58 kBAdobe PDFView/Open
15_list_of_publications.pdf25.46 kBAdobe PDFView/Open

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