| Author Name | Affiliation | Postcode | | Tongtong Zhu | State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University | 201620 | | Haige Wang | State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University | 201620 | | Xiaopeng Li* | State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University | 201620 | | Yaozu Liao | State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University | 201620 | | Zhu Meifang | State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University | 201620 |
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| Abstract: |
| Simultaneous heterostructure and composition engineering is an effective route to construct electrocatalyst of high performance. Conjugated microporous polymer (CMP) is a new emerging platform material with designable porosity and functionality. Here, a facile CMP-guest chemistry method was presented to prepare PdP2@Pd/C heterostructure with bifunctional electrocatalytic activity. The formation of heterostructure relies on a CMP precursor consisting of nitrogen groups that allow binding Pd species and introducing phosphorus inclusion. The Pd-bound CMP precursor formed in-situ could be directly converted into nitrogen- and phosphide-doped porous carbon (NPC) during pyrolysis, while P diffused to the Pd/C interface results in shallow phosphorization. The as-prepared NPC consisting of PdP2@Pd/C (Pd content 4 wt.%) heterostructure demonstrated significantly enhanced electrocatalytic performances including a promising HER activity (58mV @ 10 mA cm-2), and an ORR activity approaching commercial 20 wt.% Pd/C together with excellent long-term stability. Our work illustrates the intriguing power of CMP-guest potential in heterostructure engineering. |
| Key words: Conjugated microporous polymers Palladium phosphide heterostructures Bifunctional electrocatalysts Hydrogen evolution reaction Oxygen reduction reaction |
| DOI：10.11916/j.issn.1005-9113.2022036 |
| Clc Number:TQ42 |
| Fund: |
