Palladium Composite Membranes for Hydrogen Production and Separation - Yun, Samhun
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In this work, we developed a new preparation technique for palladium composite membranes which results in an ultra-thin and defect-free selective layer with outstanding performance properties and long life. In the method, a palladium precursor and a reducing agent on opposite sides of a substrate of porous alumina hollow fibers were placed and used an electric field to cause migration of metal ions to the outer surface where they are reduced to form seeds at high concentration in a narrow spatial region. The ethanol steam reforming was conducted in a membrane reactor with the Pd membrane and…mehr

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Produktbeschreibung
In this work, we developed a new preparation technique for palladium composite membranes which results in an ultra-thin and defect-free selective layer with outstanding performance properties and long life. In the method, a palladium precursor and a reducing agent on opposite sides of a substrate of porous alumina hollow fibers were placed and used an electric field to cause migration of metal ions to the outer surface where they are reduced to form seeds at high concentration in a narrow spatial region. The ethanol steam reforming was conducted in a membrane reactor with the Pd membrane and the performance of this reactor was compared with results from a packed bed reactor under identical conditions. For all conditions studied, enhancement of ethanol conversion and hydrogen yield were observed in the membrane reactor compared to the packed bed reactor.
Autorenporträt
Samhun Yun earned his BS and MS in Chemical Engineering from Seoul National University, Seoul, Korea in 1998 and 2000, respectively. From January of 2000 to June of 2007, he worked at LG Chem, Daejeon, Korea, as a plant engineer and a research scientist. He received his PhD in Chemical Engineering at Virginia Tech, Blacksburg, USA in 2011.