What question did this study set out to answer?

The aim is to develop an efficient OER electrocatalyst using cobalt phthalocyanine to enhance performance in water electrolyzers.

May 10, 2026

Cobalt Phthalocyanine Doping‐Induced Electronic Modulation in Metal‐Organic Framework‐Derived Co 3 O 4 and Boosted Alkaline Oxygen Evolution Reaction to Ampere Level

Key Points

The aim is to develop an efficient OER electrocatalyst using cobalt phthalocyanine to enhance performance in water electrolyzers.
Cobalt phthalocyanine was anchored on N-doped Co3O4 carbon network derived from metal organic framework (MOF).
Evaluated the electron transfer and stability of the Co3O4-NC2Pc catalyst during water electrolysis at varying potentials.
Measured current density at an overpotential of 1.2 V and durability in comparison to commercial RuO2.
Co3O4-NC2Pc delivers a current density of 1000 mA cm−2 at an overpotential of 1.2 V with excellent stability.
The catalyst exhibits a potential of 1.66 V to maintain 1000 mA cm−2, outperforming commercial RuO2.
The findings contribute to green technology and hydrogen energy advancements.

Abstract

The oxygen evolution reaction (OER) using noble metal‐based catalysts faced significant commercialization challenges due to the scarcity and substantial expense of these noble metals. Thus, the development of an efficient OER electrocatalyst for proton exchange membrane (PEM) water electrolyzers is still a challenging task. Herein, we present a facile approach to preparing cobalt phthalocyanine anchored on N‐doped Co 3 O 4 carbon network (Co 3 O 4 ‐NC) derived from metal organic framework (MOF). This strategy facilitates fast electron transfer and modulates the electronic structure. This improved electron transport induced by CoPc plays a significant role in enhancing OER, requiring only an overpotential of 1.2 V to deliver a current density of 1000 mA cm −2 with excellent stability. The Co 3 O 4 ‐NC2 Pc catalyst shows excellent durability during PEM water electrolysis and delivers industrially required current density of 1000 mA cm −2 at a potential of 1.66 V, outperforming commercial RuO 2 . The results of this research are twofold. Firstly, they promote green and low‐carbon development. Secondly, they inject new vitality into the development of hydrogen energy technologies.

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Cite This Study

Ghali et al. (Fri,) studied this question.

synapsesocial.com/papers/6a002191c8f74e3340f9c7f2 https://doi.org/https://doi.org/10.1002/cplu.70168

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