NO reduction by methane over iron oxides: Characteristics and mechanisms

Su, Yaxin; Zhao, Ben; Deng, Wei

doi:10.1016/j.fuel.2015.07.077

Cited by 23 publications

(11 citation statements)

References 27 publications

(36 reference statements)

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“…Diverse classes of nanoparticles (NPs), metallic or polymeric colloids used to improve the patient compliance and therapeutic efficiency of applicable medicines. Ferro-fluids are stable dispersions in water phase of magnetic iron-oxide NPs which have been studied in biomedical sciences as proficient device in vitro diagnosis, cell separation, immunoassays and nucleic acid concentration [ 26 ]. In chemically, iron oxide NPs have been used in NO reduction [ 27 ], adsorbents for heavy metals [ 28 ], pigments in cosmetic powders [ 29 ], anodes in lithium ion-batteries [ 30 ], detection of hydrogen peroxide [ 31 ], polymer coated of supra-magnetic NPs [ 32 ], application in magnetic resonance imaging [ 33 ], biomedical applications [ 34 ], imaging agents [ 35 ], photo-catalysis [ 36 ], removing of inorganic and organic pollutants [ 37 ], glycerol hydrogenolysis [ 38 ], hydrogenation of nitrobenzene [ 39 ], application in high-performance supercapasitor [ 40 ], catalytic oxidation [ 41 ], water treatment [ 42 ], separation of acid dye [ 43 ], antibody functionalization [ 44 ], biosensor applications [ 45 ], hybridization of nanotube [ 46 ], oil spill removing [ 47 ] and bio-distribution studies [ 48 ].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of 3-methoxyphenol sensor based on Fe3O4 decorated carbon nanotube nanocomposites for environmental safety: Real sample analyses

2017

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Iron oxide ornamented carbon nanotube nanocomposites (Fe3O4.CNT NCs) were prepared by a wet-chemical process in basic means. The optical, morphological, and structural characterizations of Fe3O4.CNT NCs were performed using FTIR, UV/Vis., FESEM, TEM; XEDS, XPS, and XRD respectively. Flat GCE had been fabricated with a thin-layer of NCs using a coating binding agent. It was performed for the chemical sensor development by a dependable I-V technique. Among all interfering analytes, 3-methoxyphenol (3-MP) was selective towards the fabricated sensor. Increased electrochemical performances for example elevated sensitivity, linear dynamic range (LDR) and continuing steadiness towards selective 3-MP had been observed with chemical sensor. The calibration graph found linear (R2 = 0.9340) in a wide range of 3-MP concentration (90.0 pM ~ 90.0 mM). The limit of detection and sensitivity were considered as 1.0 pM and 9×10−4 μAμM-1cm-2 respectively. The prepared of Fe3O4.CNT NCs by a wet-chemical progression is an interesting route for the development of hazardous phenolic sensor based on nanocomposite materials. It is also recommended that 3-MP sensor is exhibited a promising performances based on Fe3O4.CNT NCs by a facile I-V method for the significant applications of toxic chemicals for the safety of environmental and health-care fields.

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Section: Introductionmentioning

confidence: 99%

Fabrication of 3-methoxyphenol sensor based on Fe3O4 decorated carbon nanotube nanocomposites for environmental safety: Real sample analyses

2017

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“…Ren et al [75] prepared Fe/ZSM-5 catalysts with different Fe loadings by the impregnation method. The results showed that the activity of this series of catalysts is very poor [76]. MOR is a zeolite molecular sieve with uniform micropores.…”

Section: Non-precious Metal Catalyst 321 Transitional Metal Catalystsmentioning

confidence: 96%

State-of-Art Review of NO Reduction Technologies by CO, CH4 and H2

et al. 2021

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Removal of nitrogen oxides during coal combustion is a subject of great concerns. The present study reviews the state-of-art catalysts for NO reduction by CO, CH4, and H2. In terms of NO reduction by CO and CH4, it focuses on the preparation methodologies and catalytic properties of noble metal catalysts and non-noble metal catalysts. In the technology of NO removal by H2, the NO removal performance of the noble metal catalyst is mainly discussed from the traditional carrier and the new carrier, such as Al2O3, ZSM-5, OMS-2, MOFs, perovskite oxide, etc. By adopting new preparation methodologies and introducing the secondary metal component, the catalysts supported by a traditional carrier could achieve a much higher activity. New carrier for catalyst design seems a promising aspect for improving the catalyst performance, i.e., catalytic activity and stability, in future. Moreover, mechanisms of catalytic NO reduction by these three agents are discussed in-depth. Through the critical review, it is found that the adsorption of NOx and the decomposition of NO are key steps in NO removal by CO, and the activation of the C-H bond in CH4 and H-H bonds in H2 serves as a rate determining step of the reaction of NO removal by CH4 and H2, respectively.

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“…Fe 2 O 3 : Iron-based catalysts form a significant proportion of catalyst sources for CMD reactions. [90] They are mostly desired for high methane conversion of up to 60% at temperatures of over 700 C though their yield is as low as 5%. Complete oxidation of methane at high temperatures is responsible for this low yield.…”

Section: Metal Oxide-supported Catalystsmentioning

confidence: 99%

Decomposition of Methane to Carbon and Hydrogen: A Catalytic Perspective

Musamali

Isa

2019

Energy Tech

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Catalytic decomposition of methane is a viable method of producing hydrogen and carbon nanomaterials. Hydrogen gas is mainly used as a reactant in the chemical industry, i.e., petrochemicals, glass, and pharmaceutical industries, whereas carbon may be used in direct carbon fuel cells or marketed as a filamentous carbon. Demand for carbon monoxide (CO)–free hydrogen continues to rise due to the increase in the number of its applications. Currently, a significant amount of hydrogen comes from gasification of natural gas, oxidation, and steam reforming of hydrocarbons. In all these technologies, CO is formed as a by‐product that requires tedious and costly processes to separate hydrogen from syngas. Herein, the recent literature on methane decomposition, methane reaction kinetics, catalyst performance, hydrogen yield, and formation of carbon nanomaterial are reviewed. The scope of this work is limited to direct conversion of methane into carbon and hydrogen; therefore, processes involving synthesis gas as intermediate products are not covered. Finally, catalysts that are often used in methane decomposition, their deactivation, and regeneration are discussed with the aim of documenting the foundation upon which an entirely new class of catalysts can be built to enhance their activity, selectivity, and yield.

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NO reduction by methane over iron oxides: Characteristics and mechanisms

Cited by 23 publications

References 27 publications

Fabrication of 3-methoxyphenol sensor based on Fe3O4 decorated carbon nanotube nanocomposites for environmental safety: Real sample analyses

Fabrication of 3-methoxyphenol sensor based on Fe3O4 decorated carbon nanotube nanocomposites for environmental safety: Real sample analyses

State-of-Art Review of NO Reduction Technologies by CO, CH4 and H2

Decomposition of Methane to Carbon and Hydrogen: A Catalytic Perspective

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