Premium
Polybenzoxazine‐Derived N‐doped Carbon as Matrix for Powder‐Based Electrocatalysts
Author(s) -
Barwe Stefan,
Andronescu Corina,
Masa Justus,
Ventosa Edgar,
Klink Stefan,
Genç Aziz,
Arbiol Jordi,
Schuhmann Wolfgang
Publication year - 2017
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201700593
Subject(s) - doping , carbon fibers , materials science , electrocatalyst , nanotechnology , matrix (chemical analysis) , chemical engineering , chemistry , electrochemistry , electrode , optoelectronics , composite number , composite material , engineering
In addition to catalytic activity, intrinsic stability, tight immobilization on a suitable electrode surface, and sufficient electronic conductivity are fundamental prerequisites for the long‐term operation of particle‐ and especially powder‐based electrocatalysts. We present a novel approach to concurrently address these challenges by using the unique properties of polybenzoxazine (pBO) polymers, namely near‐zero shrinkage and high residual‐char yield even after pyrolysis at high temperatures. Pyrolysis of a nanocubic prussian blue analogue precursor (K m Mn x [Co(CN) 6 ] y ⋅ n H 2 O) embedded in a bisphenol A and aniline‐based pBO led to the formation of a N‐doped carbon matrix modified with Mn x Co y O z nanocubes. The obtained electrocatalyst exhibits high efficiency toward the oxygen evolution reaction (OER) and more importantly a stable performance for at least 65 h.