Porous Organic Polymer-Derived Fe₂P@N,P-Codoped Porous Carbon as Efficient Electrocatalysts for pH Universal ORR.

ABSTRACT: A new porous organic polymer (CP-CMP) was designed and synthesized via the direct polymerization of pyrrole and hexakis(4-formyl-phenoxy)cyclotriphosphazene, skipping the tedious synthetic procedure of porphyrin-monomers containing special groups. This special porous organic polymer (POP) serves as an "all in one" precursor for C, N, P, and Fe. Direct carbonization of this special POP afforded Fe₂P@N,P-codoped porous carbons with hierarchical pore structure and high graphitization. Finally, the optimal catalyst (CP-CMP-900) prepared by carbonization of CP-CMP at 900 °C exhibited high efficiency for oxygen electroreduction. Typically, CP-CMP-900 presented an oxygen reduction reaction half-wave potential (E _1/2) of 0.85, 0.73, and 0.65 V, respectively, in alkalin

SUBMITTER: Zhang M 

PROVIDER: S-EPMC7143406 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature