A Pd/Al2O3-based micro-reformer unit fully integrated in silicon technology for H-rich gas production
| Autor: | Albert Tarancón, Luis Fonseca, Marc Salleras, Jordi Llorca, Lluís Soler, M. Bianchini, N. Alayo |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya. Departament d'Enginyeria Química, Institut de Recerca en Energía de Catalunya, Universitat Politècnica de Catalunya. NEMEN - Nanoenginyeria de materials aplicats a l'energia |
| Rok vydání: | 2021 |
| Předmět: |
History
Materials science Passivation Silicon Energies [Àrees temàtiques de la UPC] Combustibles Hydrogen as fuel chemistry.chemical_element Enginyeria química::Química inorgànica [Àrees temàtiques de la UPC] Inorganic compounds FOS: Physical sciences 02 engineering and technology Substrate (electronics) Enginyeria química::Química inorgànica::Compostos inorgànics [Àrees temàtiques de la UPC] Applied Physics (physics.app-ph) 010402 general chemistry 7. Clean energy 01 natural sciences Education Atomic layer deposition Enginyeria química [Àrees temàtiques de la UPC] Hidrogen com a combustible Rapid thermal processing Microelectronics Nanotechnology Ceramic Hydrogen production Condensed Matter - Materials Science business.industry Nanotecnologia Materials Science (cond-mat.mtrl-sci) Physics - Applied Physics Enginyeria dels materials::Materials ceràmics [Àrees temàtiques de la UPC] 021001 nanoscience & nanotechnology Fuel 0104 chemical sciences Computer Science Applications chemistry Chemical engineering Compostos inorgànics visual_art visual_art.visual_art_medium 0210 nano-technology business |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Journal of Physics: Conference Series |
| ISSN: | 0013-4651 |
| DOI: | 10.48550/arxiv.2105.13044 |
| Popis: | This work reports the design, manufacturing and catalytic activity characterization of a micro-reformer for hydrogen-rich gas generation integrated in portable-solid oxide fuel cells (μ-SOFCs). The reformer has been designed as a silicon micro monolithic substrate compatible with the mainstream microelectronics fabrication technologies ensuring a cost-effective high reproducibility and reliability. Design and geometry of the system have been optimized comparing with the previous design, consisting in an array of more than 7x103 vertical through-silicon micro channels perfectly aligned (50 μm diameter) and a 5 W integrated serpentine heater consisting of three stacked metallic layers (TiW, W and Au) for perfect adhesion and passivation. Traditional fuels for SOFCs, such as ethanol or methanol, have been replaced by dimethyl ether (DME) and the chosen catalyst for DME conversion consists of Pd nanoparticles grafted on an alumina active support. The micro-channels have been coated by atomic layer deposition (ALD) with amorphous Al2O3 and the influence of rapid thermal processing (RTP) on such film has been studied. A customized ceramic 3D-printed holder has been designed to measure the specific hydrogen production rates, DME conversion and selectivity profiles of such catalyst at different temperatures. |
| Databáze: | OpenAIRE |
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