Structured hierarchical Mn-Co mixed oxides supported on silicalite-1 foam catalyst for catalytic combustion

• 作者: Boyang Mao He Liang Hengyu Shen Jinsong Zhang Xiaolei Fan Xing Guo Yanan Guan Yangtao Zhou Yilai Jiao Zhenyuan Yang
• 来源期刊: 中国化学工程学报（英文版）
• 年，卷（期）: 2020,（9）
• 所属期刊栏目: Catalysis, Kinetics and Reaction Engineering
• 页码范围: 2319-2327
• 页数: 9页
• 语种: 英文

摘要

Silicalite-1 (S1) foam was functionalized by supporting manganese-cobalt (Mn-Co) mixed oxides to develop the structured hierarchical catalyst (Mn-Co@S1 F) for catalytic combustion for the first time.The self-supporting S1 foam with hierarchical porosity was prepared via hydrothermal synthesis with polyurethane (PU) foam as the template.Subsequently,Mn-Co oxide nano sheets were uniformly grown on the surface of S1 foams under hydrothermal conditions to prepare the structured hierarchical catalyst with specific surface area of 354 m2·g-1,micropore volume of0.141 cm3· g-1 and total pore volume of0.217 cm3· g-1,as well as a good capacity to adsorb toluene (1.7 mmol· g 1 at P/P0 =0.99).Comparative catalytic combustion of toluene of over developed structured catalyst Mn-Co@S1F was performed against the control catalysts of bulk Mn-Co@S1 (i.e.,the crushed Mn-Co@S1 F) and unsupported Mn-Co oxides (Le.,Mn-Co).Mn-Co@S1F exhibited comparatively the best catalytic performance,that is,complete and stable toluene conversion at 248 ℃ over 65 h due to the synergy between Mn-Co oxides and S1 foam,which provided a large number of oxygen vacancies,high redox capacity.In addition,the hierarchical porous structure also improved the accessibility of active sites and facilitated the global mass transfer across the catalyst bed,being beneficial to the catalysis and catalyst longevity.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	Yanan Guan	中国科学院金属研究所	1	0	0.0	0.0
2	Hengyu Shen	中国科学院金属研究所	1	0	0.0	0.0
3	Xing Guo	中国科学院金属研究所	1	0	0.0	0.0
4	Boyang Mao	中国科学院金属研究所	1	0	0.0	0.0
5	Zhenyuan Yang	中国科学院金属研究所	1	0	0.0	0.0
6	Yangtao Zhou	中国科学院金属研究所	1	0	0.0	0.0
7	He Liang	中国科学院金属研究所	1	0	0.0	0.0
8	Xiaolei Fan	中国科学院金属研究所	2	0	0.0	0.0
9	Yilai Jiao	中国科学院金属研究所	2	0	0.0	0.0
10	Jinsong Zhang	中国科学院金属研究所	1	0	0.0	0.0