Faraday discussions

01 1 January 2027

DOI 10.1039/d6fd00130k

Designing electrochemical reactors for long-term space missions

Open DOI

Akash Raman, Katharina Brinkert

Water electrolysis is expected to play a key role in the human space exploration by producing oxygen as part of the Environmental Control and Life Support System (ECLSS). However, initial...

02 1 January 2027

DOI 10.1039/d6fd00113k

Bubble detachment from circular cavities and flat surfaces

Open DOI

Ianto Cannon, Stefan Christian Endres, Lutz Mädler et al.

We determine the maximum stable volume of bubbles attached to flat surfaces as a function of the contact radius, contact angle, and capillary length. Using a shooting method to solve...

03 1 January 2027

DOI 10.1039/d6fd00129g

Spiers Memorial Lecture: Mechanistic Non-Adiabatic Chemistry: Everything you always Wanted to Know About but Were Afraid to Ask

Open DOI

Mike A. Robb

We review the central concepts (e.g. conical intersections) of mechanistic non-adiabatic chemistry as well dynamics methods that can be used where more than one potential surface is involved. With the...

04 1 January 2027

DOI 10.1039/d6fd00127k

Preferential Nucleation Sites Regulate Hydrogen Bubble Evolution on Mesh Electrodes

Open DOI

Kensei Tsuburaya, Akash Raman, Stefan Schlautmann et al.

Gas-bubble evolution substantially affects the efficiency of gas-evolving electrochemical processes, including water electrolysis. Bubble nucleation, growth, coalescence, and detachment influence the electrode potential, while persistent...

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05 1 January 2027

DOI 10.1039/d6fd00121a

Passive Magnetohydrodynamic Bubble Removal for Water Electrolysis Across Gravity Regimes

Open DOI

Theo St Francis, Jaroslaw Syzdek, Alvaro Romero-Calvo

06 1 January 2027

DOI 10.1039/d6fd00124f

Reaction Interface Engineering Enables Gravity-Independent Electrolysis

Open DOI

Zhiyuan Chen, Deepak Pant

Electrochemical gas evolution reactions are essential for oxygen and fuel production in space in-situ resource utilization (ISRU), yet their performance is fundamentally limited by gravity-dependent bubble removal. Under reduced-gravity ...

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07 1 January 2027

DOI 10.1039/d6fd00123h

Water Transport Model for Cathode-Vapour-Feed Electrolysers

Open DOI

Sören Heizmann, Chiara Manfletti

Cathode-Vapour-Feed electrolysers are a special type of Proton-Exchange-Membrane cells. While exhibiting various properties making them especially attractive for applications in the spaceflight industry, their performance is limited by t...

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08 1 January 2027

DOI 10.1039/d6fd00077k

Kinetically Controlled Proton Removal via Bio-inspired Hybrid Bilayer Membrane Functionalized Electrode for Ethylene Glycol Oxidation to Generate C2 Products

Open DOI

Xiaoyong Mo, Zuo Hang Yu, Edmund C. M. Tse

As a cornerstone of the circular carbon economy, the upcycling of polyethylene terephthalate (PET) relies on efficient monomer recovery and subsequent high-value transformation. While PET can be effectively broken down...

09 1 January 2027

DOI 10.1039/d6fd00116e

Quantification of the effect of ultrasound in PEM water electrolyser with operando neutron imaging and numerical simulations

Open DOI

Stratis Trachanias, Tamara Miličić, Wenyu Zhao et al.

This study investigates the effect of ultrasound (US) on the electrochemical performance and two-phase flow regimes within a custom-designed polymer electrolyte membrane water electrolyser (PEMWE) cell. The electrolyser cell was...

10 1 January 2027

DOI 10.1039/d6fd00118a

Effect of engineered cracks in the membrane electrode assembly catalyst layer on the performance of PEMWE cells

Open DOI

Jakob Raeymaekers, Jonas Lambie, Johan Steelant et al.

Water electrolysis systems are essential for life-support applications during long-term manned space missions. However, the lack of buoyancy forces under microgravity conditions inhibits bubble detachment from the electrodes, which furth...

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