Skip to content

Research at St Andrews

Phenylacetylene hydrogenation coupled with benzyl alcohol dehydrogenation over Cu/CeO2 : a consideration of Cu oxidation state

Research output: Contribution to journalArticlepeer-review

Open Access Status

  • Embargoed (until 13/11/21)

Author(s)

Chiara Pischetola, Stephen M. Francis, Federico Grillo, Christopher J. Baddeley, Fernando Cárdenas-Lizana

School/Research organisations

Abstract

We have examined the effect of copper oxidation state in the continuous gas phase coupled phenylacetylene hydrogenation (to styrene) with benzyl alcohol dehydrogenation (to benzaldehyde) over Cu/CeO2. Analysis by H2-TPR, XPS, XRD and STEM-EDX analyses demonstrates the generation of a range of Cu oxidation states (Cu0 (13-77%), Cu+ (13-74%), Cu2+ (0-55%)). The stepwise formation of styrene and ethylbenzene was promoted in the stand-alone phenylacetylene hydrogenation. An increase in Cu0/Cu+ (from H2-TPR and XPS) enhanced H2 chemisorption and styrene TOF, but with low hydrogen utilisation efficiency. The formation of benzaldehyde and toluene was promoted in the stand-alone dehydrogenation of benzyl alcohol, where benzaldehyde selectivity and TOF correlate with the concentration of Cu0. Full hydrogen utilisation, exclusive benzaldehyde/styrene formation and a (3-fold) greater styrene TOF (to attain 100% yield) was achieved in the coupled process, where hydrogenation/dehydrogenation activity correlates with Cu+/Cu0. This opens new directions for sustainable “hydrogen free” hydrogenations over non-noble Cu catalysts.
Close

Details

Original languageEnglish
JournalJournal of Catalysis
VolumeIn press
Early online date13 Nov 2020
DOIs
Publication statusE-pub ahead of print - 13 Nov 2020

    Research areas

  • Coupling process, phenylacetylene hydrogenation, benzylalcoholdehydrogenation, Copper oxidation sate, Cu/CeO

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Structural and electronic characterisation of Cu/Au(111) near-surface alloys

    Grillo, F., Megginson, R., Batchelor, D., Muntwiler, M. & Baddeley, C. J., 18 Jun 2019, In: Japanese Journal of Applied Physics. 58, SI, 5 p., SIIB09.

    Research output: Contribution to journalArticlepeer-review

  2. Effect of the pH in the growth of benzotriazole model layers at realistic environmental conditions

    Mirarco, A., Francis, S. M., Baddeley, C. J., Glisenti, A. & Grillo, F., 1 Oct 2018, In: Corrosion Science. 143, p. 107-115

    Research output: Contribution to journalArticlepeer-review

  3. Influence of structure and composition on the surface chemistry of bimetallic Cu/Au model catalysts

    Baddeley, C., Grillo, F., Megginson, R. & Francis, S., 19 Aug 2018, In: Abstracts of Papers of the American Chemical Society. 256, 1 p.

    Research output: Contribution to journalAbstractpeer-review

  4. Structure and reactivity of Cu-doped Au(111) surfaces

    Grillo, F., Megginson, R., Christie, J., Francis, S. M., Richardson, N. V. & Baddeley, C. J., 19 May 2018, In: e-Journal of Surface Science and Nanotechnology. 16, p. 163-171

    Research output: Contribution to journalArticlepeer-review

  5. Metallosupramolecular assembly of Cr and p-terphenylnitrile by dissociation of metal carbonyls on Au(111)

    Anderson, A. E., Grillo, F., Larrea, C. R., Green, R. T. S., Fruchtl, H. A. & Baddeley, C. J., 21 Jan 2016, In: Journal of Physical Chemistry C. 120, 2, p. 1049–1055

    Research output: Contribution to journalArticlepeer-review

Related by journal

  1. The application of inelastic neutron scattering to investigate iron-based Fischer-Tropsch to olefins catalysis

    Davidson, A. L., Gibson, E. K., Cibin, G., van Rensburg, H., Parker, S. F., Webb, P. B. & Lennon, D., Dec 2020, In: Journal of Catalysis. 392, p. 197-208 12 p.

    Research output: Contribution to journalArticlepeer-review

  2. The role of Bi-doping in promoting electron transfer and catalytic performance of Pt/3DOM-Ce1-xBixO2-δ

    Yu, K., Lei, D., Feng, Y., Chang, Y., Yu, H., Wang, Y., Liu, Y., Wang, G-C., Lou, L-L., Liu, S. & Zhou, W., Sep 2018, In: Journal of Catalysis. 365, p. 292-302 11 p.

    Research output: Contribution to journalArticlepeer-review

  3. The application of inelastic neutron scattering to investigate CO hydrogenation over an iron Fischer–Tropsch synthesis catalyst

    Hamilton, N. G., Warringham, R., Silverwood, I. P., Kapitán, J., Hecht, L., Webb, P. B., Tooze, R. P., Zhou, W., Frost, C. D., Parker, S. F. & Lennon, D., Apr 2014, In: Journal of Catalysis. 312, p. 221-231 11 p.

    Research output: Contribution to journalArticlepeer-review

  4. Particle size effect in the low temperature reforming of methane by carbon dioxide on silica-supported Ni nanoparticles

    Baudouin, D., Rodemerck, U., Krumeich, F., de Mallmann, A., Szeto, K. C., Menard, H., Veyre, L., Candy, J-P., Webb, P. B., Thieuleux, C. & Coperet, C., Jan 2013, In: Journal of Catalysis. 297, p. 27-34 8 p.

    Research output: Contribution to journalArticlepeer-review

ID: 271287912

Top