High Pressure (6 MPa) H-Type Electrochemical Cell with Separated Dual Chambers, CHPHTECSDC
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A high-pressure electrochemical cell with separated dual chambers is a specialized reactor designed to perform electrolysis, synthesis, or battery testing under significant internal pressure (often up to 100 bar or more). Unlike a standard "H-cell," these are typically precision-machined from solid metals to prevent leaks and ensure the total separation of the anode and cathode environments.
The "dual-chamber" design is essential when the reaction products (such as H2 and O2 in water splitting) must be kept separate for purity and safety, or when the anode and cathode require different electrolytes (e.g., pH-asymmetric cells). (1) Separator/Membrane: A solid electrolyte membrane (like Nafion) or a porous diaphragm (like Zirfon) is sandwiched between the two chambers. In high-pressure cells, this membrane must be supported by a porous metal frit (Titanium or Stainless Steel) to prevent it from rupturing if there is a pressure differential between the chambers. (2) The "Zero-Gap" Design: To minimize internal resistance (IR drop) which increases at high pressures, the electrodes are often pressed directly against the membrane.
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CHPHTECSDC (C-HPHTEC-SDC) |
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| Note | The cell components should be thoroughly cleaned and dried after use. |
References:
2. B. Endrődi, et al. Multilayer Electrolyzer Stack Converts Carbon Dioxide to Gas Products at High Pressure with High Efficiency, ACS Energy Lett. 2019, 4, 7, 1770–1777.