A Short Review on the Catalytic Activity of Hydrotalcite-Derived Materials for Dry Reforming of Methane

Catalysts

Radosław Dębek¹  Monika Motak¹  Teresa Grzybek¹  Maria Elena Galvez²  Patrick Da Costa² 

[1] Faculty of Energy and Fuels, AGH University of Science and Technology, 30 A.Mickiewicza Av., 30-059 Kraków, Poland;Institut Jean Le Rond d’Alembert, Sorbonne Universités, UPMC, Univ. Paris 6, CNRS, UMR 7190, 2 Place de la Gare de Ceinture, 78210 Saint-Cyr-L’Ecole, France;

关键词: hydrotalcites;    layered double hydroxides;    dry reforming of methane;    carbon dioxide;    nickel;   

DOI  :  10.3390/catal7010032

来源: DOAJ

【 摘 要 】

Nickel-containing hydrotalcite-derived materials have been recently proposed as promising materials for methane dry reforming (DRM). Based on a literature review and on the experience of the authors, this review focuses on presenting past and recent achievements on increasing activity and stability of hydrotalcite-based materials for DRM. The use of different NiMgAl and NiAl hydrotalcite (HT) precursors, various methods for nickel introduction into HT structure, calcination conditions and promoters are discussed. HT-derived materials containing nickel generally exhibit high activity in DRM; however, the problem of preventing catalyst deactivation by coking, especially below 700 °C, is still an open question. The proposed solutions in the literature include: catalyst regeneration either in oxygen atmosphere or via hydrogasification; or application of various promoters, such as Zr, Ce or La, which was proven to enhance catalytic stability.

【 授权许可】

Unknown