Department of Chemistry;
Federal University of Rio Grande do Norte;
CCET;
Natal;
Brazil;
Department of Chemistry;
Federal University of Sergipe;
CCET;
Sao Cristóvao;
Brazil;
Research Center Petrobras—Cenpes;
Rio de Janeiro;
Brazil;
Lanthanum Nickelate; Perovskite; Polymeric Precursor Method; Steam Reforming Reaction;