Concept introduces mechanochemistry for hydrogen production, suggesting a sustainable synthesis method.
The Concept by K.-i. Saitow (DOI: 10.1002/cssc.202502650) introduces mechanochemistry in planetary ball mills as a transformative and sustainable chemical platform in which mechanical impact is converted into reaction-driving energy. High-energy collisions between balls, analogous to meteorite impacts on Earth, generate transient extreme pressures and temperatures and supercritical water in microscale “hot spots,” allowing reactions once restricted to high-temperature or solvent-intensive laboratory or industrial conditions to proceed. This platform achieves hydrogen evolution efficiencies comparable to those of electrolysis and even realizes a new phenomenon: room-temperature thermochemical water splitting.
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Ken‐ichi Saitow (2026) studied this question.
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