Concepedia

Insights into catalyst degradation during alkaline water electrolysis under variable operation

Raúl A. Márquez, Jay T. Bender, Ashton M. Aleman, Emma Kalokowski, Thuy Vy Le, Morten Linding Frederiksen, Kenta Kawashima, Chikaodili E. Chukwuneke, Andrei Dolocan, Delia J. Milliron,

Energy & Environmental Science · 2025 · 45 citations · 70 references

DOIFull text

Open access

Concepts

Abstract

Variable operation causes severe degradation of Ni, Fe, and Co catalysts in liquid alkaline water electrolysis. This work reveals insights into catalyst transformations induced by reverse currents and offers guidelines to improve stability testing.

References

70

Nickel–Iron Oxyhydroxide Oxygen-Evolution Electrocatalysts: The Role of Intentional and Incidental Iron Incorporation

Lena Trotochaud, Samantha L. Young, James K. Ranney et al. · Journal of the American Chemical Society · 2014 · 3.5K citations · Full text

, , +17

Cobalt–Iron (Oxy)hydroxide Oxygen Evolution Electrocatalysts: The Role of Structure and Composition on Activity, Stability, and Mechanism

Michaela S. Burke, Matthew G. Kast, Lena Trotochaud et al. · Journal of the American Chemical Society · 2015 · 1.9K citations · Full text

, , +17

Considerations for the scaling-up of water splitting catalysts

Jakob Kibsgaard, Ib Chorkendorff · Nature Energy · 2019 · 1.3K citations · Full text

, , +12

Oxygen Evolution Reaction Electrocatalysis on Transition Metal Oxides and (Oxy)hydroxides: Activity Trends and Design Principles

Michaela S. Burke, Lisa J. Enman, Adam S. Batchellor et al. · Chemistry of Materials · 2015 · 1.1K citations · Full text

, , +17

Effects of Fe Electrolyte Impurities on Ni(OH)<sub>2</sub>/NiOOH Structure and Oxygen Evolution Activity

Shannon Klaus, Yun Cai, Mary W. Louie et al. · The Journal of Physical Chemistry C · 2015 · 1.1K citations · Full text

, , +17