A long-range synergistic effect between Ptn clusters and Zn1 single atoms for efficient selective hydrogenations

Abstract

Supported platinum group metal (PGM) catalysts are extensively utilized in catalytic hydrogenations. However, the adsorption energies on single PGM surfaces present the inherent scaling properties, which often lead to increased hydrogenation activity at the expense of selectivity. To address this challenge, we developed a space-separated strategy by confining few-atom Ptn clusters in Zn1-N3 sites decorated with microporous carbon material (Ptn@Zn1-N–C) to break the scaling relationship in selective hydrogenations. In detail, Ptn clusters are more favorable for H2 activation, while the Zn1-N3 single-atom sites can preferentially adsorb functional groups with electron-rich oxygen atoms. Benefiting from this long-range synergistic effect, the Ptn@Zn1-N–C catalyst displays superior catalytic performance in the selective hydrogenation of nitroarenes (>99% selectivity at ∼100% conversion, and sulfur compound-resistant hydrogenations) and excellent stability in the reverse water gas shift reaction (>99% selectivity over 40 hours at 600 °C). Our findings provide a confinement approach for further improving catalytic performance in selective hydrogenations.

Graphical abstract: A long-range synergistic effect between Ptn clusters and Zn1 single atoms for efficient selective hydrogenations

Supplementary files

Article information

Article type
Research Article
Submitted
10 Pha 2024
Accepted
04 Mph 2024
First published
04 Mph 2024

Inorg. Chem. Front., 2024, Advance Article

A long-range synergistic effect between Ptn clusters and Zn1 single atoms for efficient selective hydrogenations

H. Wei, J. Li, X. Yan, T. Liu, K. Li, D. Feng and Y. Ren, Inorg. Chem. Front., 2024, Advance Article , DOI: 10.1039/D4QI02027H

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