Design of Ir/Pt dual electrocatalysts loaded on exfoliated acetylene black for Li air battery application

This study introduces a novel type of electrocatalysts, where Pt and Ir nanoparticles were incorporated onto exfoliated acetylene black (FAB) substrate. These electrocatalysts were engineered to exhibit dual activity, simultaneously facilitating both oxygen reduction reaction and oxygen evolution re...

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Bibliographic Details
Published in:Materials research express 2023-12, Vol.10 (12), p.125508
Main Authors: Zhou, Lihang, Higashimine, Koichi, Badam, Rajashekar, Matsumi, Noriyoshi
Format: Article
Language:English
Subjects:
Acetylene
Bimetals
Chemical reduction
dual electrocatalysts
Electrocatalysts
Iridium
Li air batteries
Metal air batteries
oxygen evolution reaction
Oxygen evolution reactions
oxygen reduction reaction
Oxygen reduction reactions
Photoelectrons
Scanning transmission electron microscopy
Substrates
Transmission electron microscopy
X ray photoelectron spectroscopy
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Summary:This study introduces a novel type of electrocatalysts, where Pt and Ir nanoparticles were incorporated onto exfoliated acetylene black (FAB) substrate. These electrocatalysts were engineered to exhibit dual activity, simultaneously facilitating both oxygen reduction reaction and oxygen evolution reaction. The successful creation of these dual-function electrocatalysts, namely FAB180-Pt/Ir and FAB60-Pt/Ir, was confirmed through characterization techniques including transmission electron microscopy (TEM), x-ray photoelectron spectroscopy (XPS), energy-dispersive x-ray spectroscopy (EDS), and high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM). Ultimately, this bimetallic Pt-Ir catalyst, supported on exfoliated acetylene black (FAB), hold potential for application in Li-air batteries.
ISSN:2053-1591
2053-1591
DOI:10.1088/2053-1591/ad1359