PdCu single atom alloys supported on alumina for the selective hydrogenation of furfural

Abstract

Single-atom catalysts serve as a skilful control of precious metals on heterogenous catalysts where all active sites are accessible for catalytic reactions. Here we report the adoption of PdCu single-atom alloys supported on alumina for the selective hydrogenation of furfural. This is a special class of an atom efficient, single-site catalyst where trace concentrations of Pd atoms (0.0067 wt%) displace surface Cu sites on the host nanoparticle. Confirmed by EXAFS, the Pd atoms are entirely coordinated to Cu, with Pd-Cu bond lengths identical to that of a Cu-Cu bond. Selectively surface oxidised catalysts also confirm surface Pd atoms by EXAFS. These catalysts improve the conversion of furfural to furfuryl alcohol compared to monometallic catalysts, as they have the advantages of Cu (high selectivity but poor activity) and Pd catalysts (superior activity but unselective) without the drawbacks, making them the optimal catalysts for green/atom efficient catalysis.

Publication DOI: https://doi.org/10.1016/j.apcatb.2021.120652
Divisions: College of Engineering & Physical Sciences > Chemical Engineering & Applied Chemistry
College of Engineering & Physical Sciences > Energy and Bioproducts Research Institute (EBRI)
College of Engineering & Physical Sciences > Aston Institute of Materials Research (AIMR)
College of Engineering & Physical Sciences
Additional Information: © 2021, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ Funding: The authors also acknowledge the Energy Research Accelerator (ERA) for the funding of equipment used in this work. GK acknowledges funding from EPSRC (EP/M005186/2). MJT acknowledges funding through the THYME project (UKRI, Research England). ST and GK acknowledge funding by grant no. 80643 provided by the ″K. Karatheodory″, University of Patras.
Full Text Link:
Related URLs: https://linking ... 926337321007773 (Publisher URL)
PURE Output Type: Article
Published Date: 2021-12-15
Published Online Date: 2021-08-21
Accepted Date: 2021-08-19
Authors: Islam, Mohammed J.
Granollers Mesa, Marta (ORCID Profile 0000-0001-8602-9362)
Osatiashtiani, Amin (ORCID Profile 0000-0003-1334-127X)
Manayil, Jinesh C. (ORCID Profile 0000-0002-9864-3332)
Isaacs, Mark A.
Taylor, Martin J.
Tsatsos, Sotirios
Kyriakou, Georgios

Download

[img]

Version: Accepted Version

Access Restriction: Restricted to Repository staff only until 21 August 2022.

License: Creative Commons Attribution Non-commercial No Derivatives


Export / Share Citation


Statistics

Additional statistics for this record