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Two step copper impregnated zinc oxide microball synthesis for the reduction of activation energy of methanol steam reformation
Center of Excellence in Nanotechnology, Asian Institute of Technology.ORCID-id: 0000-0002-0074-3504
2013 (Engelska)Ingår i: Chemical Engineering Journal, ISSN 1385-8947, E-ISSN 1873-3212, Vol. 223, s. 304-308Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Cu/ZnO microball catalysts were prepared by a two-step process, where ZnO nanorods supports were first grown hydrothermally followed by the impregnation of copper nanoparticles. Catalytic activities for methanol steam reforming by using Cu/ZnO microball were found to increase with higher copper content. Addition of urea during the metal impregnation process was found to enhance the methanol steam reforming catalytic activity attributed to the larger surface area of the catalyst. Activation energies of synthesized catalyst and CuZnAl commercial catalyst were calculated from the Arrhenius plots of the rate of reaction and were found to affect hydrogen yield. The lowest activation energy of 4.74 kJ mol(-1) was achieved for the optimized catalyst which was half of the activation energy of commercial catalysts.

Ort, förlag, år, upplaga, sidor
Elsevier, 2013. Vol. 223, s. 304-308
Nationell ämneskategori
Nanoteknik
Identifikatorer
URN: urn:nbn:se:kth:diva-175196DOI: 10.1016/j.cej.2013.03.029ISI: 000320631200034Scopus ID: 2-s2.0-84876299446OAI: oai:DiVA.org:kth-175196DiVA, id: diva2:914337
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QC 20160401

Tillgänglig från: 2016-03-23 Skapad: 2015-10-10 Senast uppdaterad: 2017-11-30Bibliografiskt granskad

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