Applications / CO2

CO2 electrochemical conversion

An anion exchange membrane cell is not only for water splitting. Our electrodes, cell hardware and stacks can be used for CO2 electrochemical conversion research. The cathode catalyst is the part that differs, so the supply boundary is worth settling first.

Typical users
CO2 electrolysis and electroreduction research
Public customer cases
1 case
Recommended starting points
HXP-anHXS-0HXS-2
Good fit

This setup is a good fit when

  • You need an oxygen-evolution electrode and cell hardware for CO2 electrolysis
  • You have your own CO2 reduction catalyst and need a validated cell structure to run it in
  • You want hardware built to a chosen active area, cell count and flow-field design
  • You are moving from single-cell evaluation to short-stack or stack scale
Named cases

Named customer cases

Every customer below has agreed to be named. We describe the use only as far as our order and enquiry records confirm it.

Case 01

RIST

Republic of Korea · Industrial research institute · 2026

2 kW stack hardware · Power-to-Chemicals

Direct CO₂ conversion (CO₂RR) in a 2 kW stack

Customer need

RIST used HydroXpand's 2 kW stack for direct electrochemical CO₂ conversion (CO₂RR). It falls under Power-to-Chemicals within the broader Power-to-X category and differs from e-methanol pathways that combine electrolytic hydrogen with CO₂ downstream.

Supply summary

  • 2 kW stack hardware for a Power-to-Chemicals (CO₂RR) application
  • Hardware specification and supply scope matched to the intended use
HXS-2 2 kW stack hardware
See the timeline and full supply scope

From enquiry to delivery

  1. The review of 2 kW stack hardware for CO₂RR began in March 2026.
  2. In April, the hardware specification and supply scope were refined for the intended application.
  3. RIST used the stack as an electrochemical platform for direct CO₂ conversion under Power-to-Chemicals.

Full supply scope

  • 2 kW stack hardware for a Power-to-Chemicals (CO₂RR) application
  • Hardware specification and supply scope matched to the intended use

Documented fromThe HXS-CO₂RR stack hardware quotations from March and April 2026 and the electrochemistry material shared by the customer

Discuss similar requirementsHXS-2 stackPower-to-X applications

Customer-side output, efficiency, lifetime and publication results are not included because we do not yet have consent to publish them.

Recommended setup

Recommended setup

Recommended product

HXP-an

Anode electrode

The oxygen evolution side is the same reaction as in water electrolysis, so the grown NiFe LDH on nickel foam transfers directly

Recommended product

HXS-0

Single cell · short stack

Active area 1–25 cm², single cell up to 20 cells, built to your flow-field design

Recommended product

HXS-2

2 kW stack

For moving cell-level results to stack scale. The 23-cell build and clamping conditions are on the product page

Before you ask

Worth checking first

The cathode is yoursOur HXP-ca cathode is coated with Pt/C or PtRu/C for hydrogen evolution. It is not a CO2 reduction catalyst and we do not supply it for that purpose. Bring your own catalyst and gas diffusion electrode for the reduction side; we match the anode and the cell structure to it.
We have no CO2 performance dataEvery performance and durability figure we publish was measured under water electrolysis conditions. Current density, selectivity and lifetime in CO2 electrolysis are set by your catalyst and operating conditions, so they are not numbers we can warrant. We provide the hardware specification and the test conditions.
What to tell us firstSend the active area, cell count, flow-field design, whether the cathode is gas-fed or liquid-fed, and the membrane you intend to use, and we will set out a configuration. There is no minimum order quantity, so a single electrode sheet is a valid starting point.

Talk to us about this use case

Tell us the use case and target output, and we will review the right product configuration and quotation scope.

Request a project reviewFAQ