Acceptorless dehydrogenation of 1-phenylethanol using Pd/TiO2 catalysts prepared by sol immobilisation

Hannah Rogers; Isaac T. Daniel; Simon J. Freakley

doi:10.1016/j.catcom.2021.106377

Acceptorless dehydrogenation of 1-phenylethanol using Pd/TiO₂ catalysts prepared by sol immobilisation

Hannah Rogers, Isaac T. Daniel, Simon J. Freakley

Research output: Contribution to journal › Article › peer-review

6 Citations (SciVal)

Abstract

Reversible hydrogenation and acceptorless dehydrogenation of organic molecules would enable pre-existing technologies and infrastructure to be leveraged for the storage and transport of hydrogen. We report the synthesis of active Pd/TiO₂ catalysts prepared by sol immobilisation for the acceptorless dehydrogenation of 1-phenylethanol to acetophenone with evolution of molecular hydrogen. The catalyst converts 1-phenylethanol with a TOF of 3600 mol_1-PE h⁻¹ mol_Pd⁻¹ while maintaining high selectivity (>95%) at over 80% conversion. This represents a 3.5 x increase in catalytic activity with comparable selectivity over commercially available 5% Pd/C catalysts.

Original language	English
Article number	106377
Journal	Catalysis Communications
Volume	162
Early online date	8 Dec 2021
DOIs	https://doi.org/10.1016/j.catcom.2021.106377
Publication status	Published - 28 Feb 2022

Bibliographical note

Funding Information:
H.R. thanks the EPSRC for financial support of a studentship. XPS data collection was performed at the EPSRC National Facility for XPS (‘HarwellXPS’), operated by Cardiff University and UCL , under contract No. PR16195 . ICP-OES measurements were performed at Cardiff University with equipment supported by EPSRC Grant EP/L027240/1 .

Publisher Copyright:
© 2021 The Authors

Keywords

Catalysis
Dehydrogenation
Hydrogen
Palladium

ASJC Scopus subject areas

Catalysis
General Chemistry
Process Chemistry and Technology

Access to Document

10.1016/j.catcom.2021.106377Licence: CC BY-NC-ND

Cite this

@article{5aa08f85c7af4ddfbdf15ab3aa1531bb,

title = "Acceptorless dehydrogenation of 1-phenylethanol using Pd/TiO2 catalysts prepared by sol immobilisation",

abstract = "Reversible hydrogenation and acceptorless dehydrogenation of organic molecules would enable pre-existing technologies and infrastructure to be leveraged for the storage and transport of hydrogen. We report the synthesis of active Pd/TiO2 catalysts prepared by sol immobilisation for the acceptorless dehydrogenation of 1-phenylethanol to acetophenone with evolution of molecular hydrogen. The catalyst converts 1-phenylethanol with a TOF of 3600 mol1-PE h−1 molPd−1 while maintaining high selectivity (>95%) at over 80% conversion. This represents a 3.5 x increase in catalytic activity with comparable selectivity over commercially available 5% Pd/C catalysts.",

keywords = "Catalysis, Dehydrogenation, Hydrogen, Palladium",

author = "Hannah Rogers and Daniel, {Isaac T.} and Freakley, {Simon J.}",

note = "Funding Information: H.R. thanks the EPSRC for financial support of a studentship. XPS data collection was performed at the EPSRC National Facility for XPS ({\textquoteleft}HarwellXPS{\textquoteright}), operated by Cardiff University and UCL , under contract No. PR16195 . ICP-OES measurements were performed at Cardiff University with equipment supported by EPSRC Grant EP/L027240/1 . Publisher Copyright: {\textcopyright} 2021 The Authors",

year = "2022",

month = feb,

day = "28",

doi = "10.1016/j.catcom.2021.106377",

language = "English",

volume = "162",

journal = "Catalysis Communications",

issn = "1566-7367",

publisher = "Elsevier",

}

TY - JOUR

T1 - Acceptorless dehydrogenation of 1-phenylethanol using Pd/TiO2 catalysts prepared by sol immobilisation

AU - Rogers, Hannah

AU - Daniel, Isaac T.

AU - Freakley, Simon J.

N1 - Funding Information: H.R. thanks the EPSRC for financial support of a studentship. XPS data collection was performed at the EPSRC National Facility for XPS (‘HarwellXPS’), operated by Cardiff University and UCL , under contract No. PR16195 . ICP-OES measurements were performed at Cardiff University with equipment supported by EPSRC Grant EP/L027240/1 . Publisher Copyright: © 2021 The Authors

PY - 2022/2/28

Y1 - 2022/2/28

N2 - Reversible hydrogenation and acceptorless dehydrogenation of organic molecules would enable pre-existing technologies and infrastructure to be leveraged for the storage and transport of hydrogen. We report the synthesis of active Pd/TiO2 catalysts prepared by sol immobilisation for the acceptorless dehydrogenation of 1-phenylethanol to acetophenone with evolution of molecular hydrogen. The catalyst converts 1-phenylethanol with a TOF of 3600 mol1-PE h−1 molPd−1 while maintaining high selectivity (>95%) at over 80% conversion. This represents a 3.5 x increase in catalytic activity with comparable selectivity over commercially available 5% Pd/C catalysts.

AB - Reversible hydrogenation and acceptorless dehydrogenation of organic molecules would enable pre-existing technologies and infrastructure to be leveraged for the storage and transport of hydrogen. We report the synthesis of active Pd/TiO2 catalysts prepared by sol immobilisation for the acceptorless dehydrogenation of 1-phenylethanol to acetophenone with evolution of molecular hydrogen. The catalyst converts 1-phenylethanol with a TOF of 3600 mol1-PE h−1 molPd−1 while maintaining high selectivity (>95%) at over 80% conversion. This represents a 3.5 x increase in catalytic activity with comparable selectivity over commercially available 5% Pd/C catalysts.

KW - Catalysis

KW - Dehydrogenation

KW - Hydrogen

KW - Palladium

UR - http://www.scopus.com/inward/record.url?scp=85121316951&partnerID=8YFLogxK

U2 - 10.1016/j.catcom.2021.106377

DO - 10.1016/j.catcom.2021.106377

M3 - Article

AN - SCOPUS:85121316951

SN - 1566-7367

VL - 162

JO - Catalysis Communications

JF - Catalysis Communications

M1 - 106377

ER -