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The use of Pd catalysts on carbon-based structured materials for the catalytic hydrogenation of bromates in different types of water

AuthorsPalomares, A.E.; Franch, C.; Yuranova, T.; Kiwi-Minsker, L.; García-Bordejé, José Enrique ; Derrouiche, S.
KeywordsBromate reduction
Catalytic hydrogenation
Natural water
Industrial wastewater.
Issue Date2014
CitationApplied Catalysis B: Environmental 146: 186- 191 (2014)
AbstractThe aim of this work is to study the activity of new Pd catalysts, supported on two different nano structured carbon materials, for bromate catalytic hydrogenation. The influence of the support has been studied, obtaining the best results with a palladium catalyst supported on carbon nanofibers (CNF) grown in sintered metal fibers (SMF). The results have shown the importance of the catalyst support in order to minimize the mass-transfer limitations ensuring an efficient catalyst use. In this way the most active catalysts are those with a mesoporous structure containing high dispersed Pd nanoparticles. The activity of this catalyst for bromate reduction has been tested in different types of water, namely, distilled water, natural water and industrial wastewater. It has been shown that the catalyst activity depends on the water matrix and bromate reduction rate depends on the hydrogen partial pressure. The potential use of the catalyst has been studied in a continuous reactor. It has been observed that the catalyst is active without any important deactivation at least during 100. h of reaction, but is necessary to avoid salt precipitation and plugging problems. © 2013 Elsevier B.V.
Description6 pages, 2 tables.--Available online 7 March 2013
Publisher version (URL)http://dx.doi.org/10.1016/j.apcatb.2013.02.056
Identifiersdoi: 10.1016/j.apcatb.2013.02.056
issn: 0926-3373
Appears in Collections:(ICB) Artículos
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