Synthesis of LaNiO3 perovskite by the modified proteic gel method and study of catalytic properties in the syngas production

Journal of the Brazilian Chemical Society

José C. Santos²  Marcelo J. B. Souza¹  Juan A. C. Ruiz¹  Dulce M. A. Melo¹  Maria E. Mesquita²  Anne M. Garrido Pedrosa² 

[1] ,Universidade Federal de Sergipe Departamento de Química Departamento de Engenharia Química São Cristóvão SE ,Brazil

关键词: LaNiO3 perovskites;    collagen;    syngas production;    partial oxidation of methane;   

DOI  :  10.1590/S0103-50532012005000052

来源: SciELO

【 摘 要 】

This work describes a study on the synthesis of LaNiO3 perovskites via the modified proteic gel method, varying collagen content and on the catalytic activity of LaNiO3 and LaNiO3/Al2O3 in the syngas (CO + H2) production. X-ray diffraction patterns revealed the formation of perovskite structure in all samples prepared by proteic gel synthesis method, varying collagen content and after calcinations at 700 ºC for 2 h. LaNiO3/Al2O3 catalyst prepared by the impregnation method showed diffraction peaks due to the perovskite structure and to the support (Al2O3). This catalyst presented: specific surface of 46.1 m² g-1, two reduction peaks in the temperature programmed reduction (TPR) profile and 46% of methane conversion (by the partial oxidation of methane using oxygen) after 18 h of reaction.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License