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The interface
is the device.

Baldur Series MEAs — engineered platforms where catalyst, ionomer, membrane, and gas-diffusion layer converge into a single integrated component.

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Catalyst-Coated Membrane

Catalyst on the membrane.

Three properties decide whether an electrochemical cell scales: where the catalyst sits, how much of it sits there, and how precisely the active area is bounded. 

The catalyst-coated membrane (CCM) architecture places the active catalyst layer in direct contact with the ion-conducting polymer membrane. This eliminates the ohmic contribution of the separator-electrode interface, halving internal resistance versus catalyst-coated substrate fabrications in equivalent operating regimes. Our CCM platform is configurable across chemistry (AEM or PEM), membrane format (self-supported, reinforced, crosslinked), catalyst composition, mass loading, and geometric definition of the active region.

01

Fully customizable membrane platform

Choose AEM or PEM chemistries in reinforced, self-supported, or crosslinked formats. Thickness, structure, and dimensions tailored to your system design.

02

Application-tuned catalyst formulation

Catalyst composition and mass loading optimized to your performance, durability, and cost targets.

03

Precision-defined active area

Catalyst-coated regions engineered with tight geometric control, ensuring uniform current distribution and reproducible cell-to-cell performance.

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Ultrasonic spray coating

Catalyst inks atomized through an ultrasonic nozzle for precise deposition control. Custom geometries, small-batch flexibility, and rapid iteration for prototyping. The right tool for catalyst screening and process development.

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Roll-to-roll continuous coating

Continuous web coating of catalyst layers onto rolled membrane or substrate. The throughput pathway for production-scale MEA manufacture, with in-line QC ensuring batch-to-batch consistency.

Catalyst-Coated Substrate

Catalyst grown directly
on the substrate.

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Engineered for next-gen electrochemistry

Built for the three-phase interface.

Feynman Dynamics offers a high-performance series of gas diffusion electrodes (GDEs) purpose-built for water electrolysis, CO₂ electroreduction, and a wide range of electrochemical applications. Our Ni-based catalysts are grown directly on nickel foam substrates, delivering robust adhesion, superior electrical conductivity, and optimized gas transport across the three-phase interface.

Uniform Ni-based catalyst layer · precision-deposited

Integrated nickel foam substrate · high conductivity

Scalable manufacturing with rigorous QC

Uniform Ni-based catalyst layer

precision-deposited for consistent activity and reproducible cell performance.

Integrated nickel foam substrate

combines outstanding conductivity with the mechanical robustness needed for demanding stack environments.

Scalable manufacturing with rigorous QC

strict process control ensures batch-to-batch consistency from lab-scale samples to commercial volumes.

Size

CONSTRUCTION

Self-supported · 100% resin composition

5 cm x 5 cm

10 cm x 10 cm

30 cm x 30 cm

80 cm x 110 cm

AEM Water Electrolysis

Applications

CONSTRUCTION

Self-supported · 100% resin composition

CONSTRUCTION

Self-supported · 100% resin composition

Type

Catalyst

Description

MN100

MoNi alloy
Molybdenum nickel (MoNi) Alloy GDE made from nickel mesh

NF100

FeCoNi LDH
Iron cobalt nickel hydroxide (LDH) co-deposited GDE made from nickel mesh

Sizes available

Application

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Tell us your stack 
we'll build to it.

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