MnOx-CeO2 catalyst derived from metal-organic frameworks for toluene oxidation

Sun, Hui; Yu, Xiaolin; Ma, Xiuyun; Yang, Xueqin; Lin, Min; Ge, Maofa

doi:10.1016/j.cattod.2019.05.062

Cited by 101 publications

(38 citation statements)

References 39 publications

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“…4c ), and the nonuniform large particles were surrounded by some smaller particles, which originate from the partial collapse of the UiO-66 framework during the heat treatment, similar to that reported previously. 35 The obtained results from TEM matched with the FTIR spectra and SEM images.…”

Section: Resultssupporting

confidence: 60%

“…a relatively high surface area, which can be explained that the presence of HSiW inhibits the excessive shrinkage of the precursor in the case of the calcination process and the formation of cavity between particles, and similar phenomenon has also been reported previously. 35,36 More signicantly, relatively high surface area and good porosity would facilitate mass transfer for esterication. In general, NH 3 -TPD is widely used to characterize the acid strength and acidity of the composites.…”

Section: Catalyst Characterizationmentioning

confidence: 99%

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MOF-derived zirconia-supported Keggin heteropoly acid nanoporous hybrids as a reusable catalyst for methyl oleate production

et al. 2021

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Section: Resultssupporting

confidence: 60%

Section: Catalyst Characterizationmentioning

confidence: 99%

MOF-derived zirconia-supported Keggin heteropoly acid nanoporous hybrids as a reusable catalyst for methyl oleate production

et al. 2021

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“…We can infer that the Fe ions in the MnO 2 lattice and the coexistence of manganese and iron oxides enhance this strong interaction, which are beneficial to produce more lattice defects and to increase the specific surface area of the samples. 23 It provides evidence for the synthesis of homogeneous Mn-Fe binary oxides.…”

Section: Resultsmentioning

confidence: 96%

Preparation of Mn-Fe Oxide by a Hydrolysis-Driven Redox Method and Its Application in Formaldehyde Oxidation

et al. 2021

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Homogeneous distribution of Mn-Fe oxides ( x Mn1Fe) with different Mn/Fe ratios was synthesized by a hydrolysis-driven redox method, and their catalytic activities in HCHO oxidation were investigated. The results showed that HCHO conversion was significantly improved after doping iron due to the synergistic effect between manganese and iron. The 5Mn1Fe catalyst exhibits excellent catalytic activity, achieving >90% HCHO conversion at 80 °C and nearly 100% conversion at 100 °C. The physicochemical properties of catalysts were characterized by BET, XRD, H 2 -TPR, O 2 -TPD, and XPS techniques. Experimental results revealed that the introduction of Fe into MnO x resulted in a large surface area, a high ratio of Mn 4+ , abundant lattice oxygen species and oxygen vacancy, and uniform distribution of Mn and Fe, thus facilitating the oxidation of HCHO to CO 2 and H 2 O.

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“…Sun et al reported the preparation of MnO x by various methods such as thermal decomposition, pyrolysis of MOFs, and co-precipitation. Among them, MOF-derived MnO x exhibited excellent catalytic activity of toluene, which could be attributed to the high surface defects [ 85 ]. In many cases, MOFs can be used as templates to develop NMs.…”

Section: Some Metal–organic Frameworkmentioning

confidence: 99%

Recent Progress in Metal–Organic Framework-Derived Nanostructures in the Removal of Volatile Organic Compounds

et al. 2021

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Air is the most crucial and life-supporting input from nature to the living beings of the planet. The composition and quality of air significantly affects human health, either directly or indirectly. The presence of some industrially released gases, small particles of anthropogenic origin, and the deviation from the normal composition of air from the natural condition causes air pollution. Volatile organic compounds (VOCs) are common contaminants found as indoor as well as outdoor pollutants. Such pollutants represent acute or chronic health hazards to the human physiological system. In the environment, such polluted gases may cause chemical or photochemical smog, leading to detrimental effects such as acid rain, global warming, and environmental pollution through different routes. Ultimately, this will propagate into the food web and affect the ecosystem. In this context, the efficient removal of volatile organic compounds (VOCs) from the environment remains a major threat globally, yet satisfactory strategies and auxiliary materials are far from being in place. Metal–organic frameworks (MOFs) are known as an advanced class of porous coordination polymers, a smart material constructed from the covalently bonded and highly ordered arrangements of metal nodes and polyfunctional organic linkers with an organic–inorganic hybrid nature, high porosities and surface areas, abundant metal/organic species, large pore volumes, and elegant tunability of structures and compositions, making them ideal candidates for the removal of unwanted VOCs from air. This review summarizes the fundamentals of MOFs and VOCs with recent research progress on MOF-derived nanostructures/porous materials and their composites for the efficient removal of VOCs in the air, the remaining challenges, and some prospective for future efforts.

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MnOx-CeO2 catalyst derived from metal-organic frameworks for toluene oxidation

Cited by 101 publications

References 39 publications

MOF-derived zirconia-supported Keggin heteropoly acid nanoporous hybrids as a reusable catalyst for methyl oleate production

MOF-derived zirconia-supported Keggin heteropoly acid nanoporous hybrids as a reusable catalyst for methyl oleate production

Preparation of Mn-Fe Oxide by a Hydrolysis-Driven Redox Method and Its Application in Formaldehyde Oxidation

Recent Progress in Metal–Organic Framework-Derived Nanostructures in the Removal of Volatile Organic Compounds

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