| Title: | Pd/delta-MnO(2) nanoflower arrays cordierite monolithic catalyst toward toluene and o-xylene combustion |
| Author(s): | Li Y; Liao Q; Ling W; Ye F; Liu F; Zhang X; He J; Cheng G; |
| Address: | "Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China. Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, Guangdong University of Technology, Guangzhou, China" |
| DOI: | 10.3389/fchem.2022.978428 |
| ISSN/ISBN: | 2296-2646 (Print) 2296-2646 (Electronic) 2296-2646 (Linking) |
| Abstract: | "Exploring high-efficiency and stable monolithic structured catalysts is vital for catalytic combustion of volatile organic compounds. Herein, we prepared a series of Pd/delta-MnO(2) nanoflower arrays monolithic integrated catalysts (0.01-0.07 wt% theoretical Pd loading) via the hydrothermal growth of delta-MnO(2) nanoflowers onto the honeycomb cordierite, which subsequently served as the carrier for loading the Pd nanoparticles (NPs) through the electroless plating route. Moreover, we characterized the resulting monolithic integrated catalysts in detail and evaluated their catalytic activities for toluene combustion, in comparison to the controlled samples including only Pd NPs loading and the delta-MnO(2) nanoflower arrays. Amongst all the monolithic samples, the Pd/delta-MnO(2) nanoflower arrays monolithic catalyst with 0.05 wt% theoretical Pd loading delivered the best catalytic performance, reaching 90% toluene conversion at 221 degrees C at a gas hourly space velocity (GHSV) of 10,000 h(-1). Moreover, this sample displayed superior catalytic activity for o-xylene combustion under a GHSV of 10,000 h(-1). The monolithic sample with optimal catalytic activity also displayed excellent catalytic stability after 30 h constant reaction at 210 and 221 degrees C" |
| Keywords: | Pd nanoparticles catalytic combustion o-xylene particle size surface-absorbed oxygen synergy effect toluene delta-MnO2 nanoarrays; |
| Notes: | "PubMed-not-MEDLINELi, Yongfeng Liao, Qianyan Ling, Weizhao Ye, Fan Liu, Fangfang Zhang, Xipeng He, Jiajun Cheng, Gao eng Switzerland 2022/11/01 Front Chem. 2022 Oct 13; 10:978428. doi: 10.3389/fchem.2022.978428. eCollection 2022" |
