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Related Experiment Video

Updated: Jan 30, 2026

Preparation of Carbon Nanosheets at Room Temperature

Preparation of Carbon Nanosheets at Room Temperature

Published on: March 8, 2016

pH-Universal Water Splitting Catalyst: Ru-Ni Nanosheet Assemblies.

Jian Yang¹, Qi Shao¹, Bolong Huang²

¹College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu 215123, China.

|January 27, 2019

Summary

Researchers developed a novel Ru-Ni alloy catalyst for efficient and durable electrochemical water splitting across all pH levels. This breakthrough offers a greener method for producing hydrogen and oxygen, outperforming traditional catalysts.

Keywords:

Catalysis Energy Materials Materials Science

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Area of Science:

Materials Science
Electrochemistry
Catalysis

Background:

Electrochemical water splitting is a green technology for hydrogen and oxygen production.
Developing stable, efficient bifunctional catalysts for variable electrolytes remains a challenge.

Purpose of the Study:

To create a novel catalyst for efficient and durable electrochemical water splitting under universal pH conditions.
To investigate the electronic and structural properties influencing catalytic activity.

Main Methods:

Fabrication of a 3D hierarchical catalyst with a Ru shell and Ru-Ni alloy core.
Performance evaluation of the catalyst for overall water splitting.
Density Functional Theory (DFT) calculations to understand catalytic mechanisms.

Main Results:

The Ru-Ni alloy catalyst demonstrated superior performance and durability compared to Ir/C-Pt/C.
Ni introduction modulated the electronic structure, downshifting the d-band center.
DFT revealed optimized binding energies for O-O and H-H formation and minimized surface repulsion.

Conclusions:

The developed Ru-Ni hierarchical catalyst functions effectively under universal pH conditions.
The catalyst's design and electronic modulation contribute to a barrier-free water-splitting process.
This work presents a promising advancement for efficient hydrogen and oxygen production via water splitting.