Recent Advances in Catalysts for Methane Combustion

Chen, Jinghuan; Arandiyan, Hamidreza; Gao, Xiang; Li, Junhua

doi:10.1007/s10563-015-9191-5

Cited by 226 publications

(182 citation statements)

References 214 publications

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“…This is a serious issue because CH 4 has severe global warming effects, around 25 times greater than that of carbon dioxide (CO 2 ). For a more efficient use of natural gas and to minimize the direct emission of CH 4 , the catalytic oxidation of CH 4 at low temperature has been investigated extensively over the last decades [5–8]. …”

Section: Introductionmentioning

confidence: 99%

“…In terms of reactivity, minority surfaces have a large amount of lowly coordinated atoms that can be actively involved in surface reactions, including adsorbing CH 4 and stabilizing intermediates [7]. Following this strategy, this work explores the catalysis of copper oxide (CuO), a promising catalyst for CH 4 oxidation as identified in the literature [8]. Different from these reports, we focus on the performance of the minority surface (001).…”

Section: Introductionmentioning

confidence: 99%

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Improved catalytic combustion of methane using CuO nanobelts with predominantly (001) surfaces

Kong¹,

Yin²,

Xue³

et al. 2018

Beilstein J. Nanotechnol.

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Through computational calculations, CuO(001) has been identified as an active surface for methane oxidation. Experimental validation with CuO nanobelts comprised of predominantly (001) surfaces has been performed and it is confirmed that the performance of such nanobelts is much higher than normal nanoparticles and nanowires. First principle calculations further clarified that two-coordinated oxygen plays a key role for methane adsorption and oxidation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improved catalytic combustion of methane using CuO nanobelts with predominantly (001) surfaces

Kong¹,

Yin²,

Xue³

et al. 2018

Beilstein J. Nanotechnol.

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show abstract

“…The review investigated noble metal-based catalysts and metal oxide catalysts, including single metal oxides, perovskites, spinels, and hexaaluminates. Moreover, Kinetic aspects, mechanisms, and the latest studies concerning density functional theory modelling are also discussed in the review [1]. Noble metals are active for CH 4 oxidation, but are rare and expensive [2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Active Component Migration and Catalytic Properties of Nitrogen Modified Composite Catalytic Materials

Peng

Zheng

et al. 2018

Catalysts

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During the catalytic combustion reaction of methane, the migration of the active species on surface facilitates the catalytic reaction, and the element doping can improve the redox performance of the catalyst. Nitrogen-modified perovskite type composite catalysts were prepared by hydrothermal method and then characterized by X-ray diffractometer (XRD), scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET), temperature-programmed reductions (TPR), and X-ray photoelectron spectra (XPS). The results revealed that nitrogen sources (urea, biuret, melamine, carbohydrazide, and semicarbazide hydrochloride) and nitrogen source addition changed the catalytic performance in physical and chemical properties, the migration of reactive species and the catalytic performance. When the addition amount of semicarbazide hydrochloride was three times that of LaCoO 3 , the composite catalysts had high Co 3+ /Co 2+ (1.39) and O ads /O lat (15.18) and showed the best catalytic performance: the temperatures that are required for achieving methane conversion of 50% and 90% were 277 and 360 • C, which are more effective than noble metal oxides. Moreover, the in situ diffuse reflectance infrared fourier transform spectroscopy (DRIFTS) were applied to elucidate the efficient for CH 4 removal and also can further explain the surface reaction mechanism of the composite catalyst during the methane catalytic combustion.

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“…10,11 However, the photocatalytic efficiency of this single catalyst is not enough to be utilized because of its low quantum yield and high recombination rate of photogenerated electron-hole pairs. 12 To solve these problems, many methods have been proposed, such as the coupling of two semiconductors, 13 metal loading, 14 and ion doping. 15 Recent studies have indicated that composite photocatalysts possess higher responses for photocatalytic reactions because they can effectively promote separation of photogenerated electron-hole pairs and prolong the lifetime of charge carriers.…”

Section: Introductionmentioning

confidence: 99%

Preparation and visible light responsive photocatalytic activity of Fe3O4/Ni-Al-Ce LDH/Bi2WO6 composites

Hao¹,

Qu²,

Wang³

et al. 2017

Quim. Nova

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composites were prepared through a hydrothermal method and co-precipitation method. The morphologies and structures of the photocatalysts were characterized by XRD, Raman, TEM, UV-vis-DRS, BET surface area and VSM techniques. The photocatalytic performances of the photocatalysts were investigated by the decolorization of methyl orange (MO) under visible-light irradiation. The results showed that the Fe 3 O 4 /Ni-Al-Ce LDH/Bi 2 WO 6 composites exhibited greater photocatalytic activities compared to pure Bi 2 WO 6 and the Ni-Al-Ce LDH; the decolorization rate of MO was 87% within 60 min under visible-light irradiation. The decolorization efficiency of the composite material remained at 71% after 4 recycling runs, showing improved stability. Furthermore, the experimental results also showed that the photocatalytic reactions for the composites followed first-order reaction kinetics. Therefore, the Fe 3 O 4 /Ni-Al-Ce LDH/Bi 2 WO 6 composites were photocatalysts with high efficiencies and stabilities for a photocatalytic reaction of an organic pollutant, and this study provides a new, effective method for the development of wastewater treatment.

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Recent Advances in Catalysts for Methane Combustion

Cited by 226 publications

References 214 publications

Improved catalytic combustion of methane using CuO nanobelts with predominantly (001) surfaces

Improved catalytic combustion of methane using CuO nanobelts with predominantly (001) surfaces

Active Component Migration and Catalytic Properties of Nitrogen Modified Composite Catalytic Materials

Preparation and visible light responsive photocatalytic activity of Fe3O4/Ni-Al-Ce LDH/Bi2WO6 composites

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