Electrospun lanthanide bimetallic oxide nanoparticles and nanofibers for partial oxidation of methane
2017; Elsevier BV; Volume: 15; Linguagem: Inglês
10.1016/j.nanoso.2017.08.008
ISSN2352-5088
AutoresJoaquim Branco de Oliveira, Ana C. Ferreira, T. Almeida Gasche, João Paulo Leal,
Tópico(s)Electrocatalysts for Energy Conversion
ResumoThe preparation of nanoparticles and nanofibers of bimetallic oxides containing f block element perovskites of the type LaNiO3, SmCoO3 and DyFeO3 was undertaken. They were obtained by electrospinning and its formation simply tuneable in the subsequent oxidation step-heating rate. These bimetallic oxides were tested as catalysts in the partial oxidation of methane aiming the production of syngas. The best results were those obtained over the nickel-based catalysts, which have an activity and selectivity comparable to that of a commercial catalyst used as reference (5 wt% Pt/Al2O3). The catalysts present also an unusual long catalytic stability in the gaseous stream. These perovskites type bimetallic oxides were characterized by different techniques (XRD, SEM/EDS, H2-TPR). To our knowledge, it is the first time that these results are reported in the literature.
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