TPHE-Graphene: A First-Principles Study of a New 2D Carbon Allotrope for Hydrogen Storage - José A. S. Laranjeira; Nicolas F. Martins; Kleuton Antunes Lopes Lima; Luis A. Cabral; Luiz A. Ribeiro Júnior; Douglas S. Galvão; Julio R. Sambrano (ACS Omega)