Open AccessCorrelation between the surface characteristics of carbon supports and their electrochemical stability and performance in fuel cell cathodes
Author(s) -
JiménezMorales Ignacio,
ReyesCarmona Alvaro,
Dupont Marc,
Cavaliere Sara,
Rodlert Marlene,
Mornaghini Flavio,
Larsen Mikkel J.,
Odgaard Madeleine,
Zajac Jerzy,
Jones Deborah J.,
Rozière Jacques
Publication year - 2021
Publication title -
carbon energy
Language(s) - English
Resource type - Journals
ISSN - 2637-9368
DOI - 10.1002/cey2.109
Subject(s) - chemical engineering , electrochemistry , chronoamperometry , materials science , carbon fibers , carbon black , electrode , raman spectroscopy , cathode , desorption , analytical chemistry (journal) , adsorption , chemistry , cyclic voltammetry , composite material , organic chemistry , natural rubber , physics , optics , composite number , engineering
In this paper, an extensive characterisation of a range of carbon blacks (CB) with similar surface area but different surface chemistry is carried out by flow calorimetry, Raman spectroscopy, dynamic water vapour sorption, instrumental gas analysis, nitrogen adsorption/desorption and high potential chronoamperometry. Using these carbon materials as supports, Pt/CB electrocatalysts are prepared by microwave‐assisted polyol‐mediated synthesis in gram scale. Structural, morphological and electrochemical properties of the prepared electrocatalysts are evaluated by X‐ray diffraction, transmission electron microscopy, rotating disc electrode and in situ fuel cell characterisation of the corresponding membrane–electrode assemblies. The obtained results allow to establish a relationship between surface chemistry and electrochemical properties useful for the design of Pt/C catalyst layers with high performance and stability.