Engineering Pt Nanoparticles onto Resin‐Derived Iron and Nitrogen Co‐Doped Porous Carbon Nanostructure Boosts Oxygen Reduction Catalysis. Issue 23 (23rd September 2021)

• Record Type: Journal Article
• Authors: Liao, Wei; Zhou, Shangyan; Wang, Zhengcheng; Liu, Fei; Pan, Hongyan; Xie, Tian; Wang, Qingmei
• Is Part Of: ChemCatChem. Volume 13:Issue 23(2021)
• Page Start: 4925
• Page End: 4930
• Publication Date: 2021-09-23
• Subjects: fuel cells -- oxygen reduction reaction -- Pt nanoparticles -- resin-derived Fe/NC support -- supported catalysts; Catalysis -- Periodicals; 541.39505
• DOI: 10.1002/cctc.202101096
• Languages: English
• ISSNs: 1867-3880

Abstract

Abstract: The high cost and deficiency of long‐term durability of carbon supported Pt catalysts have been regarded as obstacle that impeding their practical proton exchange membrane fuel cells (PEMFCs) technologies. Furtherly, iron and nitrogen co‐doped carbons (Fe/NC) are emerging as a steady electrocatalyst. Unfortunately, there are less‐active sites in acidic electrolyte. Herein, combining the advantages of Fe/NC and Pt catalysts, we propose an in‐situ surfactant‐free self‐templating solution reduction strategy to construct Pt nanoparticles (NPs) onto well‐devised Fe/NC porous nanostructures in order to manufacture highly performing Pt−Fe/NC catalyst for oxygen reduction reaction (ORR). The obtained Pt−Fe/NC catalyst displays excellent ORR performance, realizing an account of 2.53 improvement in specific activity and an account of 1.20 strengthening in mass activity toward ORR compared to the commercial Pt/C catalysts. Stability tests confirm that the as‐synthesized Pt−Fe/NC catalyst is more electrochemically steady than the commercial Pt/C catalysts on account of the electronic interaction between Pt and N which result from the difference in electronegativity. Our work provides a promising strategy for exploring the accomplishment of better ORR in acid electrolytes. Abstract : Nano‐Pt Catalysis : Combining the advantages of Fe/NC and Pt catalysts, an in‐situ surfactant‐free self‐templating solution reduction strategy can be applied to construct Pt nanoparticles (NPs) onto well‐devised Fe/NC porous nanostructures in order to manufacture highly performing Pt−Fe/NC catalyst for oxygen reduction reaction (ORR). The obtained Pt−Fe/NC catalyst displays excellent ORR performance, realizing an account of 2.53 improvement in specific activity and an account of 1.20 strengthening in mass activity toward ORR compared to the commercial Pt/C catalysts.