Catalytic decomposition of phenethyl phenyl ether to aromatics over Pd–Fe bimetallic catalysts supported on ordered mesoporous carbon

Kim, Jeong Kwon; Lee, Jong Kwon; Kang, Ki Hyuk; Song, In Kyu

doi:10.1016/j.molcata.2015.09.023

Cited by 29 publications

(17 citation statements)

References 55 publications

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“…Conversely, the profile of bimetallic Pd-Fe/OMC catalyst, shows a broad and intense peak related to the simultaneous reduction of both Pd and Fe cations suggesting that: (i) Pd nanoparticles increase the reducibility of Fe species and (ii) the addition of Fe inhibits formation of palladium hydride species. The same authors investigated analogous Pd-Fe based catalysts with different Pd/Fe composition [144]. By increasing the Fe content, the H2-TPR broad peak moves toward higher temperature clearly indicating that the bimetallic phase can be tuned by an opportune Pd/Fe ratio.…”

Section: Hydrogen Temperature-programmed Reduction (H 2 -Tpr)mentioning

confidence: 99%

“…An interesting approach, based on the use of a single step surfactant-templating procedure was used to prepare Pd-Fe/OMC supported catalysts [143,144]. The co-impregnation is fast and simple, but it is generally characterized by a poor interaction between the two precursors during the impregnation stage.…”

Section: Incipient Wetness Impregnation-iwimentioning

confidence: 99%

“…The aromatic yield follows the order Pd/OMC (36.2%) < Fe/OMC (37.2%) < Pd-Fe/OMC (74.3%) denoting, also in this case, the higher tendency of Pd-Fe systems in producing aromatics because of Fe addition on the Pd catalyst. The same authors investigated a series of Pd-Fe catalysts with different Fe/Pd molar ratio (X) in the hydrogenolysis of the PPE [144]. The catalytic activity was strongly influenced by the Fe/Pd molar ratio with the best results, in terms of aromatic yield, obtained with a Fe/Pd molar ratio of 0.7 ( Figure 18).…”

Section: Hydrodeoxygenation Of Phenol Derivativesmentioning

confidence: 99%

“…The same authors investigated a series of Pd-Fe catalysts with different Fe/Pd molar ratio (X) in the hydrogenolysis of the PPE [144]. The catalytic activity was strongly influenced by the Fe/Pd molar ratio with the best results, in terms of aromatic yield, obtained with a Fe/Pd molar ratio of 0.7 ( Figure 18).…”

Section: Hydrodeoxygenation Of Phenol Derivativesmentioning

confidence: 99%

“…Specifically, results obtained in important "green and sustainable" reactions will be presented including: aqueous-phase reforming [128][129][130], hydrogenolysis [131][132][133][134][135][136] and CTH [137,138] of C6-C2 polyols, hydrogenolysis and transfer hydrogenolysis of furfural [139,140], hydrodeoxygenation of phenol derivatives [141,142], HDO and CTH of aromatic ethers [143][144][145]. All these reactions will be discussed in details with the aim to show the unicity of heterogeneous Pd-Fe catalysts that are suitable for a wide reductive valorization processes of all constituent components of lignocellulosic biomasses having the potential to be successfully used in modern biorefineries to produce simple bulk compounds.…”

Section: Introductionmentioning

confidence: 99%

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Upgrading Lignocellulosic Biomasses: Hydrogenolysis of Platform Derived Molecules Promoted by Heterogeneous Pd-Fe Catalysts

et al. 2017

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Abstract:This review provides an overview of heterogeneous bimetallic Pd-Fe catalysts in the C-C and C-O cleavage of platform molecules such as C2-C6 polyols, furfural, phenol derivatives and aromatic ethers that are all easily obtainable from renewable cellulose, hemicellulose and lignin (the major components of lignocellulosic biomasses). The interaction between palladium and iron affords bimetallic Pd-Fe sites (ensemble or alloy) that were found to be very active in several sustainable reactions including hydrogenolysis, catalytic transfer hydrogenolysis (CTH) and aqueous phase reforming (APR) that will be highlighted. This contribution concentrates also on the different synthetic strategies (incipient wetness impregnation, deposition-precipitaion, co-precipitaion) adopted for the preparation of heterogeneous Pd-Fe systems as well as on the main characterization techniques used (XRD, TEM, H 2 -TPR, XPS and EXAFS) in order to elucidate the key factors that influence the unique catalytic performances observed.

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Section: Hydrogen Temperature-programmed Reduction (H 2 -Tpr)mentioning

confidence: 99%

Section: Incipient Wetness Impregnation-iwimentioning

confidence: 99%

Section: Hydrodeoxygenation Of Phenol Derivativesmentioning

confidence: 99%

Section: Hydrodeoxygenation Of Phenol Derivativesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Upgrading Lignocellulosic Biomasses: Hydrogenolysis of Platform Derived Molecules Promoted by Heterogeneous Pd-Fe Catalysts

et al. 2017

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Single Molecular Wells–Dawson‐Like Heterometallic Cluster for the In Situ Functionalization of Ordered Mesoporous Carbon: A T₁‐ and T₂‐Weighted Dual‐Mode Magnetic Resonance Imaging Agent and Drug Delivery System

Zhang

Wang

Ling

et al. 2017

Adv Funct Materials

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Developing a feasible way to prepare highly dispersed heterometallic nanoparticles incorporated in porous carbon composites is of significant importance for multifunctional materials. In this work, heterometallic γ-Fe 2 O 3 and GdPO 4 nanoparticles that are incorporated in ordered mesoporous carbon composites are facilely prepared by a one-pot in situ method using a Wells-Dawson-like cluster of [Fe 6 Gd 6 (μ 3 -O) 2 (CO 3 )(O 3 PPh) 6 (O 2 C t Bu) 18 ] ({Fe 6 Gd 6 P 6 } for short) as the precursor. It is verified that the γ-Fe 2 O 3 and GdPO 4 nanoparticles are highly dispersed and embedded into the carbon matrix with a particle size smaller than 5 nm, even when the carbon matrix is changed from 2D hexagonal P6mm to 3D body-centered cubic Im-3m symmetry. Additionally, a formation mechanism is proposed. Furthermore, dual-mode magnetic resonance (MR) imaging and drug carrier properties are evaluated by in vitro experiments, which show a satisfactory T 1 -and T 2 -weighted MR imaging effect with r 1 and r 2 relaxivity values of 2.7 and 183.7 mM −1 s −1 , respectively, and doxorubicin hydrochloride carrier amount of 102 mg g −1 , identifying a combined function for potential diagnostic and therapy.

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Effects of metal promoters in bimetallic catalysts in hydrogenolysis of lignin derivatives into value‐added chemicals

Jia

et al. 2020

ChemCatChem

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Bimetallic catalysts have been widely employed in the lignin hydrogenolysis research, which is attributed to that the interaction between the two metals can regulate the catalyst surface properties, thus improving the catalytic performance. The metal promoters can change the adsorption strength and orientation between the catalyst surface and the substrates, the active sites dispersion and the catalyst stability, so the activity, selectivity and stability of bimetallic catalysts are better than those of the corresponding monometallic catalysts in lignin hydrogenolysis. The effects between the two metals can be divided into the following four types: the electronic (ligand) effect, synergistic effect, stabilizing effect and geometric (ensemble) effect. Herein, these four different effects between the two metals and the reaction mechanisms over different bimetallic catalysts in lignin hydrogenolysis are discussed in this minireview, aiming to point out the challenges and further perspectives in the design of efficient bimetallic catalysts.

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Catalytic decomposition of phenethyl phenyl ether to aromatics over Pd–Fe bimetallic catalysts supported on ordered mesoporous carbon

Cited by 29 publications

References 55 publications

Upgrading Lignocellulosic Biomasses: Hydrogenolysis of Platform Derived Molecules Promoted by Heterogeneous Pd-Fe Catalysts

Upgrading Lignocellulosic Biomasses: Hydrogenolysis of Platform Derived Molecules Promoted by Heterogeneous Pd-Fe Catalysts

Single Molecular Wells–Dawson‐Like Heterometallic Cluster for the In Situ Functionalization of Ordered Mesoporous Carbon: A T₁‐ and T₂‐Weighted Dual‐Mode Magnetic Resonance Imaging Agent and Drug Delivery System

Effects of metal promoters in bimetallic catalysts in hydrogenolysis of lignin derivatives into value‐added chemicals

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Catalytic decomposition of phenethyl phenyl ether to aromatics over Pd–Fe bimetallic catalysts supported on ordered mesoporous carbon

Cited by 29 publications

References 55 publications

Upgrading Lignocellulosic Biomasses: Hydrogenolysis of Platform Derived Molecules Promoted by Heterogeneous Pd-Fe Catalysts

Upgrading Lignocellulosic Biomasses: Hydrogenolysis of Platform Derived Molecules Promoted by Heterogeneous Pd-Fe Catalysts

Single Molecular Wells–Dawson‐Like Heterometallic Cluster for the In Situ Functionalization of Ordered Mesoporous Carbon: A T1‐ and T2‐Weighted Dual‐Mode Magnetic Resonance Imaging Agent and Drug Delivery System

Effects of metal promoters in bimetallic catalysts in hydrogenolysis of lignin derivatives into value‐added chemicals

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Product

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Single Molecular Wells–Dawson‐Like Heterometallic Cluster for the In Situ Functionalization of Ordered Mesoporous Carbon: A T₁‐ and T₂‐Weighted Dual‐Mode Magnetic Resonance Imaging Agent and Drug Delivery System