Executive Summary : | The study aims to synthesize low bismuth loaded palladium catalysts Pd5Bi1, Pd10Bi1, Pd15Bi1, and Pd20Bi1 using various physicochemical methods. It also investigates the role and influence of bismuth at electronic interaction between palladium and bismuth.
The main sources of hydrogen production are fossil fuels and expensive electrolysis of water, which lead to the consumption of fossil fuels and carbon dioxide emissions. Hydrogen can be produced from renewable, affordable, and cost-effective raw materials, such as biomass. Biomass is an inherently biologically stored solar energy source, with carbon being the carrier of hydrogen. Glucose can be a suitable source of hydrogen for this purpose, as it is a carbon-neutral source. Thermochemical processes of biomass conversion show good results, but control of CO2 emissions generated during steam conversion is required. Electrocatalytic reforming of biomass shows high efficiency but has limitations. Glucose can be used as a source of hydrogen, with the world production capacity of gluconic acid being over 100,000 tons per year. The electrocatalytic method allows for the production of bio-H2 from glucose, which can be processed at lower energy than water splitting.
The study will use a wet-chemical approach to synthesize catalysts for glucose oxidation, focusing on the atomic ratio between palladium and bismuth deposited on γ η-Al2O3. The structure of the catalysts will be investigated by various physicochemical methods, and catalytic tests will be conducted to determine the kinetic parameters of the reaction activation energy, reaction rate constant, initial reaction rate, and activity. The stability of the most active catalyst will be tested in several successive catalytic cycles of glucose oxidation.
The study focuses on the direct electrodeposited of ternary metal alloys electrodes on a copper substrate using nickel, cobalt, and other precursors. Structural analysis, morphologies, and elemental analysis are performed using X-Ray diffraction, X-ray EDX analyzer, and an Autolab PGSTAT204 electrochemical workstation. |