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

Universidade Federal de Sergipe, São Cristóvão, Brazil¹  Ruiz, Juan A. C.¹  Centro de Tecnologias do Gás e Energias Renováveis, Natal, Brazil¹  Melo, Dulce M. A.¹  Mesquita, Maria E.¹  Universidade Federal do Rio Grande do Norte, Natal, Brazil¹  Pedrosa, Anne M. Garrido¹  Santos, José C.¹  Souza, Marcelo J. B.¹ 

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

DOI  :  

学科分类：化学（综合）

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】

Unknown