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Temp text Agenda + the flow of today's presentation will follow the same flow as in the thesis Problem: + humans using more material, more types + urbanisation and raising living standards + goals of - defossilisation and decarbonisation + PM supply strain + geopolitical challenge Challenges with recycling of PMs + biggest - PMs are minority amidst base elements + price fluctuation - volatility + legislation targets - weight based + thermodynamics - theoretically yes but practically difficult to separate (energy & resource intensive) + stringent quality requirements while valorisation + scale of economy doesn't exist for PM Aim/Objective + Widest: contribute to development of sustainable practices in metallurgy specifically electrified technologies + Wide: Investigations into the mechanisms of GDEx for optimisation + 3 specific areas of focus being: 1. 2. 3. + While the scope focused on investigating the mass transfer dynamics of electrogenerated reductive species and the impact of key operational parameters on metal precipitation efficiency + detailed economic analysis, long-term environmental impact assessments, and the development of alternative electrochemical methods, were excluded from the scope of this research. + intricate mechanistic studies of gas-diffusion electrochemistry, the detailed design and scaling of flow-cell reactors, and the synthesis of nanoparticles for purposes beyond metal recovery were considered outside the scope of this work + long-term environmental impact, economic viability, or the full lifecycle analysis of the recovered materials + the development of new materials or technologies that could complement or enhance the GDEx process + Needed because: deliberately narrowing the focus to avoid an overly broad investigation & this focused approach facilitated a thorough exploration of the practical aspects and optimisation of the GDEx process Appendices + GDEx at the intersection of several interesting research areas: -> gas-diffusion electrochemistry -> electrochemical engineering in flow-cell reactors -> metal recovery technologies -> functional material synthesis technologies + Production & Demand numbers (at least for Pt, Pd, W, V, Mo) + Waste sources - WEEE, PVs, catalysts, catalytic converters + Current PM recovery methods (OPTIONAL) + GDEx - superiority over conventional EC metal recovery methods
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