| Title: | Preparation and characterization of nano- and non-nanoscale Co(3)O(4) spinels obtained from different methods and study of their performance in combustion of aromatics from polluted air-A comparison with Pt/gamma-Al(2)O(3) performance |
| Author(s): | Hosseini S; Niaei A; Salari D; |
| Address: | "Department of Applied Chemistry and Chemical Engineering, University of Tabriz, Tabriz, Iran. seyedali.hosseini@ntnu.no" |
| Journal Title: | J Environ Sci Health A Tox Hazard Subst Environ Eng |
| DOI: | 10.1080/10934529.2012.689184 |
| ISSN/ISBN: | 1532-4117 (Electronic) 1093-4529 (Linking) |
| Abstract: | "This article reports the development of oxidative precipitation (OP) method for synthesis of Co(3)O(4) as an environmental catalyst and comparison of its performance with that of obtained from conventional sol gel combustion (SG) method and industrial Pt/gamma-Al(2)O(3) in remediation of toluene from air. Catalytic studies were carried out in a fixed bed reactor at 100-350 degrees C under atmospheric pressure. Co(3)O(4) (OP) showed the highest activity in combustion of toluene. The half conversion temperature of toluene (T(50%)) was 160, 258, and 229 degrees C on Co(3)O(4) (OP), Co(3)O(4) (SG) and Pt/gamma-Al(2)O(3), respectively. The higher activity of Co(3)O(4) (OP) was ascribed to nanostructure and reducibility of catalytic sites at lower temperatures, approved by TPR results. The study confirmed that preparation method has a large influence on the chemical-physical properties and activity of the catalyst. The study indicated that oxidative precipitation method could be a promising method to synthesize environmental catalysts considering the simplicity and needless to calcine catalyst at higher temperatures" |
| Keywords: | Air Pollutants/*chemistry Aluminum Oxide/*chemistry Catalysis Incineration Magnesium Oxide/*chemistry Oxidation-Reduction Volatile Organic Compounds/*chemistry; |
| Notes: | "MedlineHosseini, Seyedali Niaei, Aligholi Salari, Dariush eng Research Support, Non-U.S. Gov't England 2012/07/05 J Environ Sci Health A Tox Hazard Subst Environ Eng. 2012; 47(12):1728-32. doi: 10.1080/10934529.2012.689184" |
