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H2-free Semi-hydrogenation of Butadiene by the Atomic Sieving Effect of Pd Membrane with Tree-like Pd Dendrites Array |
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| Authors: | Yong-Qing Yan Zhao Wei Prof Zhao Wang Yao Li Wei-Hao Wang Bo Jiang Prof Bao-Lian Su |
| Institution: | 1. Laboratory of Living Materials, the, State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 Hubei, China
These authors contributed equally to this work. Contribution: Data curation (lead), Formal analysis (lead), Investigation (lead), Methodology (lead), Writing - original draft (lead), Writing - review & editing (supporting);2. Laboratory of Living Materials, the, State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 Hubei, China These authors contributed equally to this work. Contribution: Conceptualization (equal), Data curation (equal), Formal analysis (equal), Investigation (equal), Methodology (equal), Validation (equal), Writing - original draft (equal), Writing - review & editing (equal);3. Laboratory of Living Materials, the, State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 Hubei, China;4. Laboratory of Living Materials, the, State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 Hubei, China Contribution: Data curation (supporting), Formal analysis (supporting), Investigation (supporting), Writing - original draft (supporting), Writing - review & editing (supporting);5. Laboratory of Living Materials, the, State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 Hubei, China Contribution: Data curation (supporting), Formal analysis (supporting), Investigation (supporting), Writing - original draft (supporting) |
| Abstract: | H2-free semi-hydrogenation at room temperature shows great advantage for replacing the thermocatalytic process in industry owing to the high energy and resource saving, however, remains great challenges. Herein, a tree-like Pd dendrites array decorated Pd membrane was constructed as the core device in an electrochemistry assisted gas-fed membrane reactor for butadiene semi-hydrogenation. It reveals that hydrogen atomic sieving effect of this Pd-based membrane under electrochemical condition was the key for semi-hydrogenation. The configuration study of Pd nanostructured membrane demonstrates that the penetration of hydrogen atoms through Pd membrane from electrochemical side to chemical side is affected by the consumption of hydrogen atom in semi-hydrogenation step. Such atomic sieving property of nanostructured Pd membrane with 5.1 times increase in catalytic active surface area brings above 14 times higher in butadiene conversion than that of bare Pd foil, with ≈90 % of butenes selectivity at butadiene conversion ≈98 % over 300 h of H2-free reaction under 15 mA cm−2. |
| Keywords: | 1 3-Butadiene Pd Membrane Semi-Hydrogenation Unsaturated Hydrocarbons Water Electrolysis |