Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 450081
Title Stability and activity of carbon nanofiber-supported catalysts in the aqueous phase reforming of ethylene glycol
Author(s) Haasterecht, T. van; Ludding, C.C.I.; Jong, K.P. de; Bitter, J.H.
Source Journal of Energy Chemistry 22 (2013). - ISSN 2095-4956 - p. 257 - 269.
DOI http://dx.doi.org/10.1016/S2095-4956(13)60032-7
Department(s) Biobased Chemistry and Technology
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2013
Abstract Nickel, cobalt, copper and platinum nanoparticles supported on carbon nano-fibers were evaluated with respect to their stability, catalytic activity and selectivity in the aqueous phase reforming of ethylene glycol (230 ¿, autogenous pressure, batch reactor). The initial surface-specific activities for ethylene glycol reforming were in a similar range but decreased in the order of Pt (15.5 h-1)>Co(13.0 h-1)>Ni(5.2 h-1) while the Cu catalyst only showed low dehydrogenation activity. The hydrogen molar selectivity decreased in the order of Pt (53%)>Co(21%)>Ni (15%) as a result of the production of methane over the latter two catalysts. Over the Co catalyst acids were formed in the liquid phase while alcohols were formed over Ni and Pt. Due to the low pH of the reaction mixture, especially in the case of Co (as a result of the formed acids), significant cobalt leaching occurs which resulted in a rapid deactivation of this catalyst. Investigations of the spent catalysts with various techniques showed that metal particle growth is responsible for the deactivation of the Pt and Ni catalysts. In addition, coking might also contribute to the deactivation of the Ni catalyst.
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