Electrocatalysts for the oxygen evolution reaction in acidic media

Y Lin, Y Dong, X Wang, L Chen - Advanced Materials, 2023 - Wiley Online Library
The well‐established proton exchange membrane (PEM)‐based water electrolysis, which
operates under acidic conditions, possesses many advantages compared to alkaline water …

Electrocatalysis for the oxygen evolution reaction in acidic media: progress and challenges

HY Qu, X He, Y Wang, S Hou - Applied Sciences, 2021 - mdpi.com
The oxygen evolution reaction (OER) is the efficiency-determining half-reaction process of
high-demand, electricity-driven water splitting due to its sluggish four-electron transfer …

Breaking long-range order in iridium oxide by alkali ion for efficient water oxidation

J Gao, CQ Xu, SF Hung, W Liu, W Cai… - Journal of the …, 2019 - ACS Publications
Oxygen electrochemistry plays a critical role in clean energy technologies such as fuel cells
and electrolyzers, but the oxygen evolution reaction (OER) severely restricts the efficiency of …

Degradation of iridium oxides via oxygen evolution from the lattice: correlating atomic scale structure with reaction mechanisms

O Kasian, S Geiger, T Li, JP Grote… - Energy & …, 2019 - pubs.rsc.org
Understanding the fundamentals of iridium degradation during the oxygen evolution
reaction is of importance for the development of efficient and durable water electrolysis …

Surface electron-hole rich species active in the electrocatalytic water oxidation

JJ Velasco-Vélez, EA Carbonio… - Journal of the …, 2021 - ACS Publications
Iridium and ruthenium and their oxides/hydroxides are the best candidates for the oxygen
evolution reaction under harsh acidic conditions owing to the low overpotentials observed …

Lithium-directed transformation of amorphous iridium (oxy) hydroxides to produce active water oxidation catalysts

J Ruiz Esquius, DJ Morgan… - Journal of the …, 2023 - ACS Publications
The oxygen evolution reaction (OER) is crucial to future energy systems based on water
electrolysis. Iridium oxides are promising catalysts due to their resistance to corrosion under …

Iridium-based nanowires as highly active, oxygen evolution reaction electrocatalysts

SM Alia, S Shulda, C Ngo, S Pylypenko… - ACS Catalysis, 2018 - ACS Publications
Iridium–nickel (Ir–Ni) and iridium–cobalt (Ir–Co) nanowires have been synthesized by
galvanic displacement and studied for their potential to increase the performance and …

Oxygen Evolution Reaction Activity and Stability Benchmarks for Supported and Unsupported IrOx Electrocatalysts

C Daiane Ferreira da Silva, F Claudel, V Martin… - ACS …, 2021 - ACS Publications
Advanced materials are needed to meet the requirements of devices designed for
harvesting and storing renewable electricity. In particular, polymer electrolyte membrane …

Nano-size IrOx catalyst of high activity and stability in PEM water electrolyzer with ultra-low iridium loading

H Yu, N Danilovic, Y Wang, W Willis… - Applied Catalysis B …, 2018 - Elsevier
The balance of catalyst loading, activity and stability remains a challenge for the anode of
proton exchange membrane (PEM) water electrolyzers. Here we report a nano-size …

Atomic-scale insights into surface species of electrocatalysts in three dimensions

T Li, O Kasian, S Cherevko, S Zhang, S Geiger… - Nature Catalysis, 2018 - nature.com
The topmost atomic layers of electrocatalysts determine the mechanism and kinetics of
reactions in many important industrial processes, such as water splitting, chlor-electrolysis or …