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Final Report on Nano-Scale Water-Gas-Shift Catalysts.
| 题名： | Final Report on Nano-Scale Water-Gas-Shift Catalysts. |
| 作者： | Scott L. Swartz, Ph.D.; |
| 关键词： | *Gasoline-; *Fuel-processors; *Catalysts-.;Ceramics-; Cerium-oxides; Contractors-; Fuel-cells; Gasoline-; Hydrothermal-synthesis; Kinetics-; Membranes-; Mixtures-; Oxides-; Platinum-; Protons-; Testing-; Synthesis-. |
| 摘要： | This Final Report describes work performed by NexTech Materials and its subcontractors (The University of Pennsylvania, Catalyte, and Sued-Chemie) under DOE's Cooperative Automotive Research for Advanced Technology (CARAT) program. Phase I of this project was initiated in September of 1998 and completed in September of 1999. Phase II was initiated in June of 2000 and completed in June of 2003. The project was directed toward the development of superior water-gas-shift catalysts used in fuel processors that convert gasoline into a hydrogen-rich gas for automotive proton exchange membrane (PEM) fuel cells. The catalyst material developed was a nanoscale mixture of ceria-based mixed oxides with uniformly incorporated platinum. The technical approach involved the use of hydrothermal synthesis methods to prepare dispersed suspensions of nanoscale cerium oxide particles, and the use of wet-chemical methods to deposit precious metals (e.g., platinum) on the nano-particle surfaces. Synthesis processes and formulations were established for the preparation of highly active WGS catalysts, and extensive micro-reactor testing was performed. Processes also were established for supporting these catalysts on straight-channel (honeycomb) monoliths as well as foamed ceramic supports, and these WGS monoliths were tested at Sued-Chemie, HydrogenSource, Nuvera Fuel Cells, and other fuel processor developers. Finally, a kinetic model was established for predicting the size, weight and cost of WGS reactors made using the advanced catalysts. |
| 报告类型： | 科技报告 |
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