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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)center dot 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 Mn4+ and Co3+ 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.
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JOURNAL OF HAZARDOUS MATERIALS
ISSN: 0304-3894
Year: 2018
Volume: 349
Page: 119-127
7 . 6 5
JCR@2018
1 2 . 2 0 0
JCR@2023
ESI Discipline: ENGINEERING;
ESI HC Threshold:170
JCR Journal Grade:1
CAS Journal Grade:1
Cited Count:
WoS CC Cited Count: 204
SCOPUS Cited Count: 216
ESI Highly Cited Papers on the List: 29 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 2
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