Phys.org  April 15, 2021 Researchers in Japan chose mixtures of proton-conducting ionic liquids, inorganic silica nanoparticles, and UV-sensitive photocurable resins as inks for 3D printing of membranes. They found that the mixing ratio of the precursors enabled tuning of the viscosity of inks, and the inks with an appropriate mixing ratio could be applied for 3D printing. They confirmed that the inks can function as proton exchange membranes in all-solid-state electrochemical double-layer capacitors after curing by UV irradiation…read more. TECHNICAL ARTICLE