Three-Dimensional Printed MoS/Graphene Aerogel Electrodes for Hydrogen Evolution Reactions.

In this work, we demonstrate the use of direct ink writing (DIW) technology to create 3D catalytic electrodes for electrochemical applications. Hybrid MoS/graphene aerogels are made by mixing commercially available MoS and graphene oxide powders into a thixotropic, high concentration, viscous ink. A porous 3D structure of 2D graphene sheets and MoS particles was created after post treatment by freeze-drying and reducing graphene oxide through annealing.