Nanopartículas de Rh estables y dispersas soportadas sobre CaO-SiO₂ para el reformado en seco de metano en reactores de membrana52

  1. M. Camino Manjarrés 1
  2. S. R. G. Carrazán 1
  3. B. Faroldi 2
  4. J. Múnera 2
  5. L. M. Cornaglia 2
  6. E. Gallegos 3
  7. I. Rodríguez Ramos 3
  1. 1 Departamento de Química Inorgánica. Facultad de Ciencias Químicas. Universidad de Salamanca, España
  2. 2 Instituto de Investigaciones en Catálisis y Petroquímica (FIQUNL-CONICET/Facultad de Ingeniería Química/Universidad del Litoral, Santa Fe, Argentina
  3. 3 Grupo de Diseño Molecular de Catalizadores Heterogéneos/Instituto de Petroleoquímica/ CSIC, Madrid, España
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Proceedings:
XXVI Congresso Ibero-Americano de Catálise (CICAT 2018)

Publisher: Sociedade Portuguesa de Química

ISBN: 978-989-8124-23-4

Year of publication: 2018

Pages: 1490-1493

Congress: XXVI Congresso Ibero-Americano de Catálise, CICat 2018, em Coimbra, Portugal, entre 9 e 14 de setembro de 2018

Type: Conference Poster

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Abstract

The stability and dispersion of Rh nanoparticles (0.2, 0.36 and 0.6 wt%) supported on CaO(27)-SiO2obtained from three different rhodium precursor salts, Rh(NO3), RhCl3.3H2O and (NH4)3[RhCl6).H2O y, havebeen analyzed by high resolution transmission microscopy (HRTEM) after 48 hours on stream in the dry methane reforming reaction (DRM). This work shows that the stability and dispersion of Rh nanoparticles supported on CaO/SiO2 in the DRM reaction are related to the type of Rh precursor salt used for the catalysts’ preparation. In previous studies [1], it has been shown that the composition of the binary support with a CaO percentage of 27% by weight was the most appropriate to support low Rh load using RhCl3.3H2O as Rh precursor salt, with high activity, stability and free of carbonaceous deposits in the dry methane reforming reaction (DRM)