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6256455 
Journal Article 
Na-promoted Pt/Al2O3 activity stability for the complete oxidation of HCHO at room temperature 
Guo, Y; Ma, H; Qi, G; Ren, H; Wang, F; Zhang, C 
2019 
Yes 
Catalysis Communications
ISSN: 1566-7367 
139 
105713 
WOS:000526786100007 
A series of Na-doped Pt/Al2O3 catalysts with 0.2 wt% of Pt loading and 0–6 wt% Na loading was prepared to investigate the HCHO complete oxidation at room temperature. Powder XRD, BET and XPS were used to characterize the bulk structure and texture of catalysts, as well as the ratio of hydroxyl oxygen to lattice oxygen. A long-term catalyst stability test (50 h on reaction stream) was conducted under severe conditions of a large space velocity of 180,000 mL/h/g, a high HCHO concentration of 80 ppm and dry conditions (relative humidity of 0%). An appropriate amount of doped-Na (2 wt%) contributed to a remarkable improvement of activity and stability of the Na-doped 0.2 wt% Pt/Al2O3 catalyst. 
Room temperature formaldehyde oxidation; Na catalyst dopant; Catalyst stability