Solid surface frustrated Lewis pair constructed on layered AlOOH for hydrogenation reaction

Shulin Liu, Minghua Dong, Yuxuan Wu, Sen Luan, Yu Xin, Juan Du, Shaopeng Li, Huizhen Liu () and Buxing Han
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Shulin Liu: Chinese Academy of Sciences
Minghua Dong: Chinese Academy of Sciences
Yuxuan Wu: Chinese Academy of Sciences
Sen Luan: Chinese Academy of Sciences
Yu Xin: Chinese Academy of Sciences
Juan Du: Chinese Academy of Sciences
Shaopeng Li: Chinese Academy of Sciences
Huizhen Liu: Chinese Academy of Sciences
Buxing Han: Chinese Academy of Sciences

Nature Communications, 2022, vol. 13, issue 1, 1-10

Abstract: Abstract Designing heterogeneous solid surface frustrated Lewis pair (ssFLP) catalyst for hydrogenation is a new challenge in catalysis and no research has been reported on the construction of ssFLP on boehmite (AlOOH) surfaces up to now as far as we know. Herein, AlOOH with a layer structure is prepared and it is found that the Lewis basic OHv site (one H removed from OH) and an adjacent Lewis acidic unsaturated Al site (Al3+unsatur.) proximal to a surface OHv (OH vacancy) on AlOOH layers could form the ssFLP. The layered structure of AlOOH and its abundant OH defects over the surface result in a high concentration of OHv/Al3+unsatur. FLPs, which are conducive to highly efficient hydrogen activation for hydrogenation of olefins and alkynes with low H-H bond dissociates activation energy of 0.16 eV under mild conditions (T = 80°C and P(H2) = 2.0 MPa). This work develops a new kind of hydrogenation catalyst and provides a new perspective for creating solid surface FLP.

Date: 2022
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DOI: 10.1038/s41467-022-29970-6

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