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Related Experiment Video

Updated: Nov 9, 2025

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

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Published on: April 10, 2018

Efficient fish-scale CeO₂/NiFeCo composite material as electrocatalyst for oxygen evolution reaction.

Huanhuan You¹, Bo Wang¹, Yuanzhe Wang¹

¹Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, People's Republic of China.

|April 9, 2021

Summary

Novel amorphous polymetallic doped ceria (CeO2) particles serve as efficient electrocatalysts for energy storage. This new CeO2/NiFeCo material demonstrates superior performance in oxygen evolution reactions.

Keywords:

CeO2 composite oxygen evolution reaction

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Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

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Published on: December 6, 2021

Area of Science:

Materials Science
Electrochemistry
Energy Storage

Background:

Global energy concerns necessitate high-performance materials for efficient oxygen and hydrogen evolution.
Existing catalysts often lack the required efficiency, stability, or cost-effectiveness.

Purpose of the Study:

To develop novel amorphous polymetallic doped ceria (CeO2) particles as an efficient electrochemical catalyst.
To investigate the catalytic properties of CeO2/NiFeCo for oxygen evolution reactions (OER).

Main Methods:

Homogeneous phase precipitation at room temperature to synthesize amorphous CeO2/NiFeCo.
Characterization of the material's structure and electrochemical performance.
Investigation of the oxygen evolution mechanism via lattice oxygen oxidation mechanism (LOM).

Main Results:

CeO2/NiFeCo exhibits enhanced electron transport capacity due to embedded metal ions and increased active sites.
The amorphous composite material demonstrates tunable active states in different environments.
Oxygen evolution reaction is driven by the lattice oxygen oxidation mechanism (LOM), bypassing intermediate adsorption limitations.
Achieved a low oxygen evolution overpotential of 260 mV at 10 mA cm-2, outperforming commercial RuO2.

Conclusions:

Amorphous CeO2/NiFeCo is a highly efficient and stable electrocatalyst for oxygen evolution.
The unique LOM mechanism contributes to the catalyst's superior performance.
This material offers a cost-effective and competitive alternative for energy storage applications.