Title: | Insights into the high performance of Mn-Co oxides derived from metal-organic frameworks for total toluene oxidation |
Author(s): | Luo Y; Zheng Y; Zuo J; Feng X; Wang X; Zhang T; Zhang K; Jiang L; |
Address: | "Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou 350007, PR China. National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, PR China. Electronic address: xywang2017@fzu.edu.cn. National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, PR China. National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, PR China. Electronic address: jll@fzu.edu.cn" |
DOI: | 10.1016/j.jhazmat.2018.01.053 |
ISSN/ISBN: | 1873-3336 (Electronic) 0304-3894 (Linking) |
Abstract: | "Mn-Co mixed metal oxide is considered as efficient catalyst for the total oxidation of volatile organic compounds. In this study, nanocube-like metal-organic frameworks (Mn(3)[Co(CN)(6)](2).nH(2)O) are adopted as the precursor to generate Mn-Co oxides with different Mn/Co molar ratios, which affect little on phase structure and textural properties. The obtained MOF-Mn1Co1 with uniform metal dispersion is rich in high valence of surface Mn(4+) and Co(3+) species, leading to high low-temperature catalytic activity of total toluene oxidation. The results of toluene-TPD followed by TPO and toluene-TPSR match well with the catalytic performances of MOF-Mn1Co1, MOF-Mn1Co2, and MOF-Mn2Co1, and in situ FITR proves that the benzoate route exists over MOF-Mn1Co1. It is found that a moderate ratio of Mn/Co (1:1) favors good low-temperature reducibility and high O(ads)/O(latt), resulting in superior oxidation performance. However, the stability in the existence of water for MOF-Mn1Co1 is not satisfied, which should be overcome in the future" |
Keywords: | Catalytic oxidation Metal-organic frameworks Mn-Co oxides Nanocubes Toluene; |
Notes: | "PubMed-not-MEDLINELuo, Yongjin Zheng, Yingbin Zuo, Jiachang Feng, Xiaoshan Wang, Xiuyun Zhang, Tianhua Zhang, Kai Jiang, Lilong eng Netherlands 2018/02/08 J Hazard Mater. 2018 May 5; 349:119-127. doi: 10.1016/j.jhazmat.2018.01.053. Epub 2018 Jan 31" |