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Porphyrin‐based NiFe Porous Organic Polymer Catalysts for the Oxygen Evolution Reaction
Author(s) -
Meng Jing,
Xu Ze,
Li Hongxi,
James Young David,
Hu Chuanjiang,
Yang Yonggang
Publication year - 2021
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.202001876
Subject(s) - tafel equation , overpotential , bimetallic strip , catalysis , porphyrin , porosity , nickel , oxygen evolution , electrocatalyst , materials science , polymer , inorganic chemistry , chemical engineering , chemistry , electrochemistry , photochemistry , organic chemistry , electrode , metallurgy , composite material , engineering
Porphyrin‐based NiFe porous organic polymers (POPs) have been synthesized with good porosity and large BET surface areas (261 to 313 m 2 g −1 ). These bimetallic POPs exhibit RuO 2 ‐like OER activity, with the reaction for catalyst FeTAPP‐NiTCPP‐POP reaching a current density of 10 mA cm −2 at a low overpotential of 338 mV and with a small Tafel slope of 52 mV dec −1 . FeTAPP‐NiTCPP‐POP was stable over a long period under reaction conditions. These bimetallic POPs exhibit better catalytic activity than their monometallic counterparts, due to synergetic interactions between the iron and nickel centers to facilitate the electrocatalytic process.