Hydrogen Production Boosted by Strain-Controlled Pt Single-Atom Catalyst on Crumpled MXene

A new experimental study demonstrates that a strain-engineered platinum single-atom catalyst supported on crumpled Mo2TiC2Tx MXene nanosheets delivers remarkably low overpotentials in alkaline hydrogen evolution, according to the indexed abstract on PubMed. The work pairs atom-level platinum dispersion with deliberate mechanical deformation of the support. The result: unusually low overpotentials and high mass activity under laboratory testing conditions.

• Overpotential of 24.9 mV at 10 mA cm⁻² and 75.5 mV at 50 mA cm⁻², the indexed abstract reports.
• Pt mass activity of 11 859 mA mgPt⁻¹, approximately 178-fold higher than commercial Pt/C, according to PubMed.
• Tafel slope of 31.61 mV dec⁻¹, the abstract states.
• Current density of 3 A cm⁻² at 1.98 V and stable operation at 1 000 mA cm⁻² for over 500 hours, according to the indexed abstract.

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