Liu, Y.Zhu, Y.Fan, X.Wang, S.Li, Y.Zhang, F.Zhang, G.Peng, W.2018-09-122018-09-122017Carbon, 2017; 121:163-1690008-62231873-3891http://hdl.handle.net/2440/114377Available online 29 May 2017A new composite material consisting of 0D MoS<inf>2</inf> nanodots and 3D MoS<inf>2</inf> nano-flowers grown on porous reduced graphene oxide (P-rGO) was synthesized via a two-step process. The P-rGO with a surface area of 759 m² g⁻¹ was obtained by CO<inf>2</inf> activation of reduced graphene oxide (rGO) at 800 °C. MoS<inf>2</inf> was then grown on the P-rGO under hydrothermal conditions. Compared to the nonactivated rGO, P-rGO has functional pores for deposition of MoS<inf>2</inf> nanodots and less charge transfer resistance, which can provide more active sites for hydrogen generation, thus leading to the improved activity of (0D/3D) MoS<inf>2</inf>/P-rGO in hydrogen evolution reaction (HER). The overpotential of (0D/3D) MoS<inf>2</inf>/P-rGO was only ∼150 mV vs. RHE, and the corresponding Tafel slope was ∼56 mV Dec⁻¹, which is comparable to most of the present MoS<inf>2</inf>/Graphene HER catalysts. The (0D/3D) MoS<inf>2</inf>/P-rGO exhibits as an efficient noble metal free HER catalyst, and has great potential for the electrochemical hydrogen production.en© 2017 Elsevier Ltd. All rights reserved.Journal article003009654410.1016/j.carbon.2017.05.0920004052944000182-s2.0-85020020555435476Wang, S. [0000-0002-1751-9162]