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Updated: Jul 23, 2025
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A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions
Published on: August 17, 2016
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Electrochemically Activatable Liquid Organic Hydrogen Carriers and Their Applications
Juhyun Cho1, Byeongyoon Kim2, Sandhya Venkateshalu2
1Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Republic of Korea.
Journal of the American Chemical Society
|July 13, 2023
Summary
Electrochemical liquid organic hydrogen carriers (EC-LOHCs) offer a safer, more efficient alternative to thermochemical systems for hydrogen storage. This technology enables lower temperature and pressure operation, reducing energy waste and improving practicality.
Area of Science:
- Energy storage
- Green chemistry
- Electrochemistry
Background:
- Hydrogen is a clean energy alternative to fossil fuels.
- Storing and transporting gaseous hydrogen is challenging.
- Current thermochemical liquid organic hydrogen carriers (LOHCs) are energy-intensive due to high temperature and pressure requirements.
Purpose of the Study:
- To propose electrochemical (EC)-LOHCs as a more efficient and practical hydrogen storage solution.
- To explore EC-LOHC candidates and their associated electrocatalysts.
- To present integrated fuel cell systems utilizing EC-LOHCs.
Main Methods:
- Review and discussion of EC-LOHC candidates (e.g., isopropanol, phenolic compounds, organic acids).
- Analysis of homo/hetero-based electrocatalyst design concepts.
- Proposal of fuel-cell systems for electrochemical (de)hydrogenation.
Main Results:
- EC-LOHCs demonstrate potential for efficient, safe hydrogen storage at lower temperatures and pressures.
- Various EC-LOHC candidates and electrocatalyst strategies are identified.
- Integrated fuel cell systems offer a viable pathway for hydrogen utilization.
Conclusions:
- Electrochemical LOHCs represent a significant advancement over thermochemical methods.
- Further research into EC-LOHC materials and electrocatalysts is crucial.
- EC-LOHC technology holds promise for practical hydrogen energy systems.
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