Frontispiece: Water Transport with Ultralow Friction through Partially Exfoliated g‐C3N4 Nanosheet Membranes with Self‐Supporting Spacers

Ultralow Friction MembranesIn their Communication on page 8974 ff., J. Caro et al. report a water purification membrane composed of 2D g-C3N4 nanosheets. Self-supporting spacers and intrinsic and artificial nanopores promote water transport with ultralow friction.