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Updated: Sep 7, 2025

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Published on: March 16, 2018
Method for evaluating the performance of catalytic reactions using renewable-energy-derived materials
Yuichi Manaka1,2, Yuki Nagata3, Keisuke Kobayashi4
1Renewable Energy Research Center, National Institute of Advanced Industrial Science and Technology, 2-2-9 Machiikedai, Koriyama, Fukushima, 963-0298, Japan. yuichi.manaka@aist.go.jp.
This study introduces a simple screening method for catalysts used in renewable energy applications, addressing fluctuating hydrogen supply. A three-axis graph combining three evaluation methods offers an intuitive way to screen catalysts.
Area of Science:
- Catalysis
- Renewable Energy
- Chemical Engineering
Background:
- Hydrogen production via electrolysis using renewable energy sources results in a fluctuating supply.
- Conventional catalyst evaluation methods are not suitable for fluctuating feedstock conditions.
Purpose of the Study:
- To investigate a simple screening method for catalysts applicable to renewable energy.
- To adapt catalyst synthesis and evaluation for fluctuating feedstock.
Main Methods:
- A combination of three catalyst evaluation methods was employed: Light-off Performance, equilibrium achievement degree, and maximum ammonia concentration.
- Analysis of evaluation method combinations and elemental trends was performed.
Main Results:
- The study identified trends for each element within the evaluated catalysts.
- A three-axis graph integrating the three evaluation methods was found to be effective.
Conclusions:
- The proposed three-axis graph provides an intuitive, rather than purely quantitative, method for obtaining essential catalyst screening information.
- This method is suitable for screening catalysts used with fluctuating renewable energy-derived feedstocks.
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