The observation of square ice in graphene questioned

Algara-Siller et al.1 reported the observation of a new phase of water—‘square ice’—sandwiched between two graphene layers at room temperature. Their key evidence consists of transmission electron microscope (TEM) images of a square lattice from small encapsulated crystals, the detection…

Nature 528, E1–E2 (24 December 2015) doi:10.1038/nature16145