Postsynthetic treatment of nickel–iron layered double hydroxides for the optimum catalysis of the oxygen evolution reaction oleh Daire Tyndall, Sonia Jaskaniec, Brian Shortall, Ahin Roy, Lee Gannon, Katie O’Neill, Michelle P. Browne, João Coelho, Cormac McGuinness, Georg S. Duesberg, Valeria Nicolosi