Carbon dioxide hydrogenation to aromatic hydrocarbons by using an iron/iron oxide nanocatalyst

Wang, Hongwang; Hodgson, Jim; Shrestha, Tej B.; Thapa, Prem; Moore, David F.; Wu, Xiaorong; Ikenberry, Myles; Troyer, Deryl L.; Wang, Donghai; Hohn, Keith L.; Bossmann, Stefan H.

doi:10.3762/bjnano.5.88

Cited by 24 publications

(14 citation statements)

References 70 publications

(56 reference statements)

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“…Density functional theory confirmed that Fe 3 O 4 (111) surface can activate CO 2 efficiently . Indeed, Fe‐based catalysts, which are not only active for a synthesis of liquid hydrocarbons but also active for a RWGS reaction . As mentioned in the STA process, alkali promoters such as K and Na can enhance the carburization and surface basicity of the Fe 3 O 4 , thus they make the Fe‐based catalysts very active for the desired product formation with an improved conversion of CO 2 .…”

Section: Direct Conversion Of Co2 Into Aromaticsmentioning

confidence: 90%

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Recent Advances in Direct Synthesis of Value‐Added Aromatic Chemicals from Syngas by Cascade Reactions over Bifunctional Catalysts

2019

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Value‐added aromatic monomers such as benzene, toluene, and xylenes (BTX) are very important building‐block chemicals for the production of plastics, polymers, solvents, pesticides, dyes, and adhesives. Syngas‐to‐aromatics (STA) is a very promising approach for the synthesis of aromatic monomers, and is catalyzed via bifunctional catalysts in a single reactor, wherein methanol/dimethyl ether and/or olefins intermediates formed from syngas on metal components are converted into aromatic monomers exclusively on the HZSM‐5 by cascade reactions. Since an optimal Fischer–Tropsch synthesis (FTS) temperature of Fe‐based catalysts is very close to an aromatization temperature of HZSM‐5, Fe‐based catalysts have been frequently used/modified for the synthesis of aromatic monomers from hydrogenation of carbon oxides (CO and CO2). The nature of metal components and amounts of Brönsted acid sites on HZSM‐5, and their mesoporosity and intimacy, significantly alter the selectivity for aromatics by tuning BTX distibution and catalyst stability. Although many developments have been achieved regarding the STA process in recent years, no reviews have been published in this flourishing research area over the last two decades. Here, the recent advances and forthcoming challenges in the progress of syngas (CO+H2) chemistry and hydrogenation of CO2 toward the value‐added aromatic monomers through cascade reactions are highlighted.

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Section: Direct Conversion Of Co2 Into Aromaticsmentioning

confidence: 90%

“…CO 2 , main green‐house gas (GHG), can also be a useful chemical feedstock for the synthesis of value‐added chemicals including aromatic monomers . The use of CO 2 as a chemical feedstock is a challenging task owing to its stable with a fully oxidized nature as well as the highest thermodynamical stability.…”

Section: Direct Conversion Of Co2 Into Aromaticsmentioning

confidence: 99%

Recent Advances in Direct Synthesis of Value‐Added Aromatic Chemicals from Syngas by Cascade Reactions over Bifunctional Catalysts

2019

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“…High conversion of CO 2 compared to CH 4 and the low H 2 :CO ratio (Figure ) revealed the contribution of the RWGS (CO 2 + H 2 = CO + H 2 O) . It is known that the RWGS can be catalyzed by iron . This comes from in‐situ reduction of NiFe 2 O 4 .…”

Section: Resultsmentioning

confidence: 95%

NiFe₂O₄ production from α‐Fe₂O₃ via improved solid state reaction: Application as catalyst in CH₄ dry reforming

Chamoumi

Abatzoglou

2016

Can J Chem Eng

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A new,less-material-intensive,and fast protocolwas developed to synthesize NiFe 2 O 4 spinel from hematite -Fe 2 O 3 .This is a solidstate reaction at relatively low severity and short milling time (2-10 min). The product was characterized by X-ray diffraction (XRD), scanning electron microscopycoupled with energy dispersive X-ray spectroscopy,temperature-programmed reduction, thermogravimetricanalysis, and BET specific surface area.

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“…The nanoparticles considered in this study have previously been extensively characterized in several reports [ 41 , 42 , 43 , 44 ].…”

Section: Methodsmentioning

confidence: 99%

Experimental Investigation of Magnetic Nanoparticle-Enhanced Microwave Hyperthermia

McWilliams

Wang

Binns

et al. 2017

JFB

Self Cite

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The objective of this study was to evaluate microwave heating enhancements offered by iron/iron oxide nanoparticles dispersed within tissue-mimicking media for improving efficacy of microwave thermal therapy. The following dopamine-coated magnetic nanoparticles (MNPs) were considered: 10 and 20 nm diameter spherical core/shell Fe/Fe3O4, 20 nm edge-length cubic Fe3O4, and 45 nm edge-length/10 nm height hexagonal Fe3O4. Microwave heating enhancements were experimentally measured with MNPs dissolved in an agar phantom, placed within a rectangular waveguide. Effects of MNP concentration (2.5–20 mg/mL) and microwave frequency (2.0, 2.45 and 2.6 GHz) were evaluated. Further tests with 10 and 20 nm diameter spherical MNPs dispersed within a two-compartment tissue-mimicking phantom were performed with an interstitial dipole antenna radiating 15 W power at 2.45 GHz. Microwave heating of 5 mg/mL MNP-agar phantom mixtures with 10 and 20 nm spherical, and hexagonal MNPs in a waveguide yielded heating rates of 0.78 ± 0.02 °C/s, 0.72 ± 0.01 °C/s and 0.51 ± 0.03 °C/s, respectively, compared to 0.5 ± 0.1 °C/s for control. Greater heating enhancements were observed at 2.0 GHz compared to 2.45 and 2.6 GHz. Heating experiments in two-compartment phantoms with an interstitial dipole antenna demonstrated potential for extending the radial extent of therapeutic heating with 10 and 20 nm diameter spherical MNPs, compared to homogeneous phantoms (i.e., without MNPs). Of the MNPs considered in this study, spherical Fe/Fe3O4 nanoparticles offer the greatest heating enhancement when exposed to microwave radiation. These nanoparticles show strong potential for enhancing the rate of heating and radial extent of heating during microwave hyperthermia and ablation procedures.

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Carbon dioxide hydrogenation to aromatic hydrocarbons by using an iron/iron oxide nanocatalyst

Cited by 24 publications

References 70 publications

Recent Advances in Direct Synthesis of Value‐Added Aromatic Chemicals from Syngas by Cascade Reactions over Bifunctional Catalysts

Recent Advances in Direct Synthesis of Value‐Added Aromatic Chemicals from Syngas by Cascade Reactions over Bifunctional Catalysts

NiFe₂O₄ production from α‐Fe₂O₃ via improved solid state reaction: Application as catalyst in CH₄ dry reforming

Experimental Investigation of Magnetic Nanoparticle-Enhanced Microwave Hyperthermia

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Carbon dioxide hydrogenation to aromatic hydrocarbons by using an iron/iron oxide nanocatalyst

Cited by 24 publications

References 70 publications

Recent Advances in Direct Synthesis of Value‐Added Aromatic Chemicals from Syngas by Cascade Reactions over Bifunctional Catalysts

Recent Advances in Direct Synthesis of Value‐Added Aromatic Chemicals from Syngas by Cascade Reactions over Bifunctional Catalysts

NiFe2O4 production from α‐Fe2O3 via improved solid state reaction: Application as catalyst in CH4 dry reforming

Experimental Investigation of Magnetic Nanoparticle-Enhanced Microwave Hyperthermia

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NiFe₂O₄ production from α‐Fe₂O₃ via improved solid state reaction: Application as catalyst in CH₄ dry reforming