Hydrogen production from ethanol steam reforming over core-shell structured NiOxOy-, FexOy-, and CoxOy-Pd catalysts

Title
Hydrogen production from ethanol steam reforming over core-shell structured NiOxOy-, FexOy-, and CoxOy-Pd catalysts
Author(s)
강미숙곽병섭[곽병섭]김지연[김지연]
Keywords
PARTIAL-OXIDATION; SUPPORTED CATALYSTS; CARBON-MONOXIDE; FUEL-CELLS; METHANOL; NI; OXIDE; ZR; LA
Issue Date
201011
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.35, no.21, pp.11829 - 11843
Abstract
The present work focused on the investigation of the hydrogen generation through the ethanol steam reforming over the core-shell structured NixOy-, FexOy-, and CoxOy-Pd loaded Zeolite Y catalysts. The transmission electron microscopy (TEM) image of NixOy-Pd represented a very clear core-shell structure, but the other two catalysts, CoxOy- and FexOy-Pd, were irregular and non-uniform. The catalytic performances differed according to the added core metal and the support. The core-shell structured CoxOy-Pd/Zeolite Y provided a significantly higher reforming reactivity compared to the other catalysts. The H-2 production was maximized to 98% over CoxOy-Pd(50.0 wt%)/Zeolite Y at the conditions of reaction temperature 600 degrees C, CH3CH2OH:H2O = 1:3, and GHSV (gas hourly space velocity) 8400 h(-1). In the mechanism that was suggested in this work, the cobalt component played an important role in the partial oxidation and the CO activation for acetaldehyde and CO2 respectively, and eventually, cobalt increased the hydrogen yield and suppressed the CO generation. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/23353http://dx.doi.org/10.1016/j.ijhydene.2010.08.073
ISSN
0360-3199
Appears in Collections:
이과대학 > 화학생화학부 > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE