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Investigation of a Pt containing washcoat on SiC foam for hydrogen combustion applications
논문 개요
| 기관명 | NDSL |
|---|---|
| 저널명 | Applied catalysis. B, Environmental |
| ISSN | 0926-3373,1873-3883 |
| ISBN |
논문저자 및 소속기관 정보
| 저자(한글) | Fernandez, A.,Arzac, G.M.,Vogt, U.F.,Hosoglu, F.,Borgschulte, A.,Jimenez de Haro, M.C.,Montes, O.,Zuttel, A. |
|---|---|
| 저자(영문) | |
| 소속기관 | |
| 소속기관(영문) | |
| 출판인 | |
| 간행물 번호 | |
| 발행연도 | 2016-01-01 |
| 초록 | A commercial Pt based washcoat, used for catalytic methane combustion, was studied supported on a commercial SiC foam as catalytic material (Pt/SiC) for catalytic hydrogen combustion (CHC). Structural and chemical characterization was performed using Electron Microscopy, X-Ray Diffraction (XRD) and X-Ray Photoelectron Spectroscopy (XPS). The reaction was monitored following water concentration by Fourier Transform Infrared spectra (FTIR). The FTIR method was compared with H 2 detection by Gas Cromatography (GC) and has shown to be adequate to study the kinetics of the CHC reaction in steady state under our experimental conditions (very lean 1% (v/v) H 2 /air mixtures). The catalyst is composed of 5-20nm disperse Pt nanoparticles decorating a mixture of high surface area Al 2 O 3 and small amounts of ceria supported on the SiC foam which also contains alumina as binder. The Pt/SiC catalytic material has demonstrated to be active enough to start up the reaction in a few seconds at room temperature. The material has been able to convert at least 18.5L hydrogen min -1 g Pt -1 at room temperature in conditions of excess of catalyst. The Pt/SiC material was studied after use using XPS and no significant changes on Pt oxidation states were found. The material was characterized from a kinetic point of view. From the conversion-temperature plot a T 50 (temperature for 50% conversion) of 34 o C was obtained. Activation energy measured in our conditions was 35+/-1kJmol -1 . |
| 원문URL | http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=03553784&target=NART&cn=NART73035803 |
| 첨부파일 |
추가정보
| 과학기술표준분류 | |
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| ICT 기술분류 | |
| DDC 분류 | |
| 주제어 (키워드) | Hydrogen,Catalytic combustion,FTIR,Pt-washcoat,SiC ceramic foam |