Synthesis of Bimetallic Pt3Co Alloy Nanocrystals for Heterogeneous Hydrogenation of CO2 to Methanol

Doctoral Thesis / Dissertation from the year 2017 in the subject Chemistry - Analytical Chemistry, , language: English, abstract: Can we turn a climate threat into a valuable resource? Explore the cutting-edge research that delves into the catalytic conversion of carbon dioxide, transforming a greenhouse gas into a sustainable fuel source: methanol. This groundbreaking work focuses on the design and application of bimetallic Platinum-Cobalt (Pt3Co) nanocrystals, specifically engineered into unique octapod shapes, to revolutionize the efficiency of CO2 hydrogenation. Uncover the intricate details of novel synthesis methods, including coreduction, thermal decomposition, and seed-mediated growth, used to create these high-performance catalysts. The research meticulously examines the relationship between the nanocrystals' structure, composition, and their remarkable catalytic activity in converting CO2 into methanol, a promising alternative fuel. Delve into the world of advanced characterization techniques, such as FT-IR, XRD, UV-Vis, SEM, TEM, and XPS, which provide crucial insights into the atomic-level behavior of these catalysts. Discover how Density Functional Theory (DFT) calculations are employed to unravel the reaction mechanisms and optimize the catalyst's electronic properties for enhanced CO2 activation. This study not only presents a significant advancement in heterogeneous catalysis but also offers a pathway towards carbon capture and utilization strategies that can mitigate the impact of CO2 emissions. Explore the potential of renewable energy integration through efficient CO2 conversion. Learn about the crucial role of charge transfer in optimizing catalytic performance. This investigation showcases the power of nanomaterial design in addressing global challenges, offering a glimpse into a future where carbon dioxide becomes a key ingredient in a sustainable energy economy. Understand the superior catalytic performance of Pt3Co octapods in comparison to other nanostructures, revealing the sharp-tip and alloy effects. Discover how these bimetallic nanocrystals pave the way for a cleaner, more sustainable future by transforming carbon dioxide into valuable chemicals and fuels. Explore the long-term stability and reusability, ensuring the practical applicability of these cutting-edge catalysts. This research provides a comprehensive understanding of CO2 hydrogenation, offering valuable insights for scientists, engineers, and policymakers seeking innovative solutions to combat climate change and promote a circular carbon economy. Explore the world of bimetallic catalysts and their potential to reshape our energy landscape.