Synthesis of Pt/K₂CO₃/MgAlO_x-reduced graphene oxide hybrids as promising NO_x storage-reduction catalysts with superior catalytic performance.

ABSTRACT: Pt/K₂CO₃/MgAlO_x-reduced graphene oxide (Pt/K/MgAlO_x-rGO) hybrids were synthesized, characterized and tested as a promising NO_x storage and reduction (NSR) catalyst. Mg-Al layered double hydroxides (LDHs) were grown on rGO via in situ hydrothermal crystallization. The structure and morphology of samples were thoroughly characterized using various techniques. Isothermal NO_x adsorption tests indicated that MgAlO_x-rGO hybrid exhibited better NO_x trapping performance than MgAlO_x, from 0.44 to 0.61 mmol · g^-1, which can be attributed to the enhanced particle dispersion and stabilization. In addition, a series of MgAlO_x-rGO loaded with 2 wt% Pt and different loadings (5, 10, 15

SUBMITTER: Mei X 

PROVIDER: S-EPMC5311869 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature