MEA (Membrane Electrode Assembly)
In fuel cell and water electrolysis systems—key technologies for next-generation energy—MEA is a critical component that determines performance and durability. Leveraging its electrode catalyst expertise and extensive manufacturing capabilities, Heesung Catalysts develops and supplies MEAs optimized for both fuel cells and water electrolysis applications.
Based on precise precious metal control, catalyst ink formulation, and coating process technologies, Heesung Catalysts optimizes electrode structures to achieve high performance, enhanced durability, and reduced precious metal usage simultaneously. In addition, our integrated in-house production system—from carbon to MEA—ensures stable mass supply and consistent quality.We provide customized MEA design and optimization tailored to specific performance requirements across applications, including transportation, stationary, residential and marine fuel cells, as well as hydrogen production through water electrolysis.
Anode catalyst
An IrOx-based catalyst that separates water fed to the anode of a water electrolysis device into oxygen, hydrogen cations (proton), and electrons.
Chemical formula : 2H2 → 4H+ + 4e
Cathode catalyst
A precious metal catalyst that recombines hydrogen cations and electrons to produce hydrogen. Generally, catalysts based on precious metals (Pt, Pt alloys, etc.) are used.
Chemical reaction formula : O2 + 4H+ + 4e–→ 2H2O
The technology behind Heesung Catalysts
Nano Structure Control Technology
Maximizes the catalyst’s surface area to enhance reaction efficiency.
Alloy Design
Technology Leverages the synergistic effects of different metals to enhance catalyst performance.
Support Optimization
Improves catalyst stability and lifespan to ensure long-term performance.
Surface modification technologies
Modify carrier surface properties to improve dispersibility and modulate the electronic structure of the active metal to enhance reaction efficiency.
Catalyst interfacial
Engineering Optimise the interface of the electrode and electrolyte film to improve the overall performance of the solution.
The Heesung Catalyst Difference
Proven technology and experience
Reliable solutions based on more than 40 years of catalyst development experience
Continuous R&D
Continuous research and development to bring you the latest and most innovative technologies
One-stop solution
Provide a total solution from design to installation to maintenance
Customised Solutions
Designing the optimal catalyst solution for each industry and process.
Partnership for a Sustainable Future
We work closely with our customers, partners, and academic institutions to support the hydrogen economy and clean energy transition. Our experts will analyse your specific needs and propose the optimal electrocatalyst solution to create a sustainable future together. If you need an optimal electrocatalyst solution for hydrogen technology innovation and the future of clean energy, contact us. Together, we can create a better future.
