An Improved Electrocatalyst and a Method of Preparing the Same

Summary

This patent applications discloses a multi-metal hydroxide electrocatalyst containing at least five transition metals, typically cobalt (Co), nickel (Ni), iron (Fe), tungsten (W), and molybdenum (Mo). The invention focuses on developing a highly active, low-cost catalyst for electrochemical reactions involved in green hydrogen production through water electrolysis, offering an alternative to expensive noble-metal catalysts such as platinum and iridium.

Key achievements and innovations:

1. Introduces a high-entropy/multi-metal hydroxide catalyst that leverages synergistic interactions among multiple metals to enhance catalytic activity and stability

2. Uses a relatively simple and scalable preparation method based on precursor mixing and precipitation processes, facilitating manufacturability

3. Reduces reliance on scarce and costly precious metals, improving the economic viability of water electrolysis systems

4. Demonstrates strong potential for hydrogen evolution and oxygen evolution reactions, key electrochemical processes required for efficient green hydrogen generation

5. Suitable for deployment in renewable-energy-powered electrolyzers, supporting decarbonization and clean energy initiatives

TRL Level

 1-3

Relevant for

Green hydrogen producers, electrolyzer manufacturers, renewable energy developers, water electrolysis system integrators, catalyst manufacturers, fuel cell and hydrogen infrastructure companies, industrial gas producers, and decarbonisation projects seeking low-cost, precious-metal-free electrocatalysts for large-scale green hydrogen production

About

Inventors: Yee Fun Lim, Zi Hui Jonathan Khoo, Yang Bai, Riko I Made, Yi Jing Lim

Affiliation: Agency for Science, Technology and Research (A*STAR), Institute of Materials Research and Engineering (IMRE)

Contact A*STAR for licensing opportunities and more information.

Please quote ID ref [ip-2022-408] in your email.