Electricity from nothing but salt and water, and it composts.
Where fresh water meets salt water there is free energy, and the only thing standing between us and it is a membrane tough enough and selective enough to harvest it.
Ours is a slide-ring hydrogel, asymmetrically doped with a polyelectrolyte network, and it composts.
Carson J. Bruns, Associate Professor, ATLAS Institute and the Paul M. Rady Department of Mechanical Engineering, University of Colorado Boulder.
Carson J. Bruns