Highly selective oxidation of benzene to phenol with air at room temperature promoted by water

Jijia Xie, Xiyi Li, Jian Guo, Lei Luo, Juan J. Delgado, Natalia Martsinovich and Junwang Tang ()
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Jijia Xie: University College London
Xiyi Li: University College London
Jian Guo: University College London
Lei Luo: Northwest University
Juan J. Delgado: Universidad de Cádiz
Natalia Martsinovich: University of Sheffield
Junwang Tang: University College London

Nature Communications, 2023, vol. 14, issue 1, 1-12

Abstract: Abstract Phenol is one of the most important fine chemical intermediates in the synthesis of plastics and drugs with a market size of ca. $30b1 and the commercial production is via a two-step selective oxidation of benzene, requiring high energy input (high temperature and high pressure) in the presence of a corrosive acidic medium, and causing serious environmental issues2–5. Here we present a four-phase interface strategy with well-designed Pd@Cu nanoarchitecture decorated TiO2 as a catalyst in a suspension system. The optimised catalyst leads to a turnover number of 16,000–100,000 for phenol generation with respect to the active sites and an excellent selectivity of ca. 93%. Such unprecedented results are attributed to the efficient activation of benzene by the atomically Cu coated Pd nanoarchitecture, enhanced charge separation, and an oxidant-lean environment. The rational design of catalyst and reaction system provides a green pathway for the selective conversion of symmetric organic molecules.

Date: 2023
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DOI: 10.1038/s41467-023-40160-w

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