Graphene discovery could help generate cheaper and more sustainable hydrogen

protons

, nuclei of hydrogen atoms. The unexpected result started a debate in the community because theory predicted that it would take billions of years for a proton to permeate through graphene's dense crystalline structure. This had led to suggestions that protons permeate not through the crystal lattice itself, but through the pinholes in its structure., a collaboration between the University of Warwick, led by Prof Patrick Unwin, and The University of Manchester, led by Dr.

The discovery has the potential to accelerate the hydrogen economy. Expensive catalysts and membranes, sometimes with significant environmental footprint, currently used to generate and utilize hydrogen could be replaced with more sustainable 2D crystals, reducingThe team used a technique known as scanning electrochemical cell microscopy to measure minute proton currents collected from nanometer-sized areas.

Drs Segun Wahab and Enrico Daviddi, leading authors of the paper, commented,"We were surprised to see absolutely no defects in the graphene crystals. Our results provide microscopic proof that graphene is intrinsically permeable to protons." Unexpectedly, the proton currents were found to be accelerated around nanometer-sized wrinkles in the crystals. The scientists found that this arises because the wrinkles effectively 'stretch' the

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