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Updated: Apr 30, 2026
06:43
Writing and Low-Temperature Characterization of Oxide Nanostructures
Published on: July 18, 2014
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Electronic modulation and interface engineering via amorphous ceria for enhanced OER in NiMoO4 heterostructures
Yudong Liu1, Yani Hua1, Zhan Gao1
1School of Chemical Engineering and Technology, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an 710049, China. zhangao18@xjtu.edu.cn.
Chemical Communications (Cambridge, England)
|February 19, 2026
Summary
Amorphous ceria enhances nickel molybdate
Area of Science:
- Materials Science
- Catalysis
- Electrochemistry
Background:
- Nickel molybdate (NiMoO4) is a promising electrocatalyst.
- Improving oxygen evolution reaction (OER) activity is crucial for energy applications.
Purpose of the Study:
- To investigate the mechanism of enhanced OER activity in NiMoO4 by amorphous ceria.
- To understand the role of interfacial Ce-O-Ni species.
Main Methods:
- Synthesis of NiMoO4@CeOx nanocomposites.
- Electrochemical characterization of OER performance.
- In situ spectroscopic analysis to probe interfacial species.
Main Results:
- The NiMoO4@CeOx composite exhibited superior OER activity and stability compared to pristine NiMoO4.
- In situ generated Ce4+-O-Ni species were identified at the interface.
- These species were shown to regulate electronic structure, facilitate charge transfer, and promote hydroxyl adsorption.
Conclusions:
- Amorphous ceria significantly enhances the OER performance of NiMoO4.
- The interfacial Ce4+-O-Ni species are key to the improved catalytic activity and stability.
- This work provides insights into designing advanced electrocatalysts for OER.
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