Palladium catalysts supported on carbon–nitrogen composites for aqueous-phase hydrogenation of phenol

Feng, Gang; Chen, Ping; Liu, Hui

doi:10.1039/c4cy01647e

Cited by 33 publications

(24 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Reference source not found.. The range of reaction products observed in the present work agrees well with earlier studies where furfural and phenol hydrogenations were performed separately [19,22,[56][57][58][59][60]62,67].…”

Section: Effect Of Temperature On the Product Distributionsupporting

confidence: 82%

“…A recent work was focussed on the hydrogenation of phenol in the aqueous phase through which the use of an organic solvent could be eliminated by its replacement with water identified as a 'green' solvent [18,19]. The analysis can then be extended further, for example, acetic or propionic acid can be co-fed with a phenolic model compound to investigate reactant interactions before feeding the whole bio-oil [14,20,21].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Hydrogenation of bio-oil into higher alcohols over Ru/Fe3O4-SiO2 catalysts

Cherkasov

Jadvani

Mann

et al. 2017

Fuel Processing Technology

View full text Add to dashboard Cite

Permanent WRAP URL:http://wrap.warwick.ac.uk/91922 Copyright and reuse:The Warwick Research Archive Portal (WRAP) makes this work by researchers of the University of Warwick available open access under the following conditions. Copyright © and all moral rights to the version of the paper presented here belong to the individual author(s) and/or other copyright owners. To the extent reasonable and practicable the material made available in WRAP has been checked for eligibility before being made available.Copies of full items can be used for personal research or study, educational, or not-for-profit purposes without prior permission or charge. Provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way. A note on versions:The version presented here may differ from the published version or, version of record, if you wish to cite this item you are advised to consult the publisher's version. Please see the 'permanent WRAP URL' above for details on accessing the published version and note that access may require a subscription. AbstractLiquid-phase hydrogenation of a solution of furfural, phenol and acetic acid has been studied in the 50-235 o C range over magnetic Ru/Fe3O4-SiO2 catalyst targeting the renewable production of second generation biofuels with minimum hydrogen consumption.Phenol was fully hydrogenated to cyclohexanol in the entire temperature range. Below 150 o C, furfural was mainly hydrogenated to tetrahydrofurfuryl alcohol while hydrogenolysis to cyclopentanol was the main reaction pathway above 200 o C. The hydrogenation rate was doubled in an acidic solution (pH=3) as compared to that at a pH 6. The spent catalyst was regenerated and reused in subsequent catalytic runs.

show abstract

Section: Effect Of Temperature On the Product Distributionsupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Hydrogenation of bio-oil into higher alcohols over Ru/Fe3O4-SiO2 catalysts

Cherkasov

Jadvani

Mann

et al. 2017

Fuel Processing Technology

View full text Add to dashboard Cite

show abstract

“…As is well known, the sizes of metal nanoparticles [1][2][3][4][5][6][7][8][9][10][11][12][13][14] and oxide substrates 6,[15][16][17] are important factors in determining the activity of catalysts. However, the high costs and the finite resources of these noble metals limited their future applications as catalysts in large-scale production.…”

Section: Introductionmentioning

confidence: 99%

Theoretical investigations of non-noble metal single-atom catalysis: Ni₁/FeO_x for CO oxidation

Liang

Yang

Wang

et al. 2016

Catal. Sci. Technol.

View full text Add to dashboard Cite

Significant progress has recently been made in single-atom catalysis involving noble metals. We report here a theoretical investigation on the catalytic mechanism of CO oxidation on a non-noble metal single-atom catalyst (SAC) Ni1/FeOx using density functional theory (DFT). The calculation results show that this new SAC Ni1/FeOx has high catalytic activity at room temperature for CO oxidation. The CO adsorption strength is a key factor in determining the catalytic activity for CO oxidation. Comparing with noble-metal Pt1/FeOx and Ir1/FeOx catalysts, the catalytic activity for CO oxidation on Ni1/FeOx is found to be comparable with that on Pt1/FeOx, but is considerably higher than that on Ir1/FeOx. Our theoretical prediction of this new non-noble metal Ni1/FeOx catalyst with high catalytic activity for CO oxidation at room temperature may find practical applications. The theoretical investigation provides fundamental understanding on the catalytic mechanism of singly-dispersed surface atoms and helps to stimulate further experimental study on highly active non-noble metal singleatom catalysts.

show abstract

“…This suggests that the dispersion of Pd NPs in Pd@CN‐F is the worst and that Pd@CN‐R has the best Pd dispersion. The addition of N has a positive effect on the dispersion of Pd NPs . Hence, the influence of the CN precursor separation mode on the Pd dispersion should be related to the change of N content in Pd@CN, which will be discussed below.…”

Section: Resultsmentioning

confidence: 99%

Selective catalytic hydrogenation of phenol to cyclohexanone over Pd@CN: Role of CN precursor separation mode

Zhang

Jiang

et al. 2018

Can J Chem Eng

View full text Add to dashboard Cite

The one-step hydrogenation of phenol to cyclohexanone is green and sustainable. In this study, the effect of a CN (N-doped carbon) precursor separation mode on the catalytic performance of a Pd@CN catalyst for selective hydrogenation of phenol to cyclohexanone in water was investigated. Three modes, i.e., rotary evaporation, centrifugation, and filtration, were designed to separate the CN precursor while preparing the Pd@CN catalyst. The results highlight that the separation mode significantly affects the phenol hydrogenation performance of the Pd@CN catalyst. The best catalytic performance is obtained when separating the CN precursor by the rotary evaporation mode. Based on a series of characterizations, it is confirmed that the separation mode of rotary evaporation can introduce more N into the mesoporous carbon, improve the Pd dispersion, and enhance the basic sites and Pd loading, leading to higher catalytic activity. Furthermore, the Pd@CN catalyst prepared by rotary evaporation exhibits better catalytic stability. Less Pd leaching is responsible for its slight deactivation. These findings can provide a point of reference for the development of Pd@CN catalysts with high catalytic performance.

show abstract

Palladium catalysts supported on carbon–nitrogen composites for aqueous-phase hydrogenation of phenol

Cited by 33 publications

References 27 publications

Hydrogenation of bio-oil into higher alcohols over Ru/Fe3O4-SiO2 catalysts

Hydrogenation of bio-oil into higher alcohols over Ru/Fe3O4-SiO2 catalysts

Theoretical investigations of non-noble metal single-atom catalysis: Ni₁/FeO_x for CO oxidation

Selective catalytic hydrogenation of phenol to cyclohexanone over Pd@CN: Role of CN precursor separation mode

Contact Info

Product

Resources

About

Palladium catalysts supported on carbon–nitrogen composites for aqueous-phase hydrogenation of phenol

Cited by 33 publications

References 27 publications

Hydrogenation of bio-oil into higher alcohols over Ru/Fe3O4-SiO2 catalysts

Hydrogenation of bio-oil into higher alcohols over Ru/Fe3O4-SiO2 catalysts

Theoretical investigations of non-noble metal single-atom catalysis: Ni1/FeOx for CO oxidation

Selective catalytic hydrogenation of phenol to cyclohexanone over Pd@CN: Role of CN precursor separation mode

Contact Info

Product

Resources

About

Theoretical investigations of non-noble metal single-atom catalysis: Ni₁/FeO_x for CO oxidation