A Pd/Al2O3-based micro-reformer unit fully integrated in silicon technology for H-rich gas production
Visualitza/Obre
10.1088/1742-6596/1407/1/012048
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/184880
Tipus de documentArticle
Data publicació2019-11-01
EditorInstitute of Physics (IOP)
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
:
Reconeixement 4.0 Internacional
Abstract
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 Traditional fuels for SOFCs, such as ethanol or methanol, have been replaced by dimethyl ether (DME) and the chosen catalyst for DME conversion consists of Pd nanoparticles grafted on an alumina active support.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.
CitacióBianchini, M. [et al.]. A Pd/Al2O3-based micro-reformer unit fully integrated in silicon technology for H-rich gas production. "Journal of physics: conference series (online)", 1 Novembre 2019, vol. 1407, p. 012048:1-012048:5.
ISSN1742-6596
Versió de l'editorhttps://iopscience.iop.org/article/10.1088/1742-6596/1407/1/012048/meta
Col·leccions
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
Bianchini_2019_ ... Conf._Ser._1407_012048.pdf | article principal | 760,3Kb | Visualitza/Obre |