Rational Design of High-Performance DeNOx Catalysts Based on MnxCo3–xO4 Nanocages Derived from Metal–Organic Frameworks

• DOI: 10.1021/cs401185c
• Publication Date: 2014-04-23T02:57:57Z
• Authors: Lei Zhang; Liyi Shi; Lei Huang; Jianping Zhang; Ruihua Gao; Dengsong Zhang
• Keywords: Nanocages; Specific surface area; Cobalt oxide

Herein, we have rationally designed and originally developed a high-performance deNOx catalyst based on hollow porous MnxCo3–xO4 nanocages with spinel structure thermally derived from nanocube-like metal–organic frameworks (Mn3[Co(CN)6]2·nH2O), which are synthesized via self-assemble method. The as-prepared catalysts been characterized systematically to elucidate their morphological surface properties. As compared conventional nanoparticles, possess much better catalytic activity at low-temperature regions, higher N2 selectivity, more extensive operating-temperature window, stability, SO2 tolerance. feature of structures provides larger area active sites adsorb activate reaction gases, resulting in the high activity. Moreover, uniform distribution strong interaction manganese cobalt oxide species not only enhance cycle but also inhibit formation sulfate, stability good In light various characterization results, excellent performance can be attributed structures, sites, as well species. suggests that promising candidates for catalysts. More importantly, present study indicates architectures well-dispersed components effectively