62. Ziliang Chen,  Renbing Wu,  Yang Liu,  Yuan Ha,  Yanhui Guo,  Dalin Sun,  Miao Liu,  Fang Fang ,Ultrafine Co Nanoparticles Encapsulated in Carbon‐Nanotubes‐Grafted Graphene Sheets as Advanced Electrocatalysts for the Hydrogen Evolution Reaction, ADVANCED MATERIALS 30, 1802011 (2018).