SnSe nanosheet hybridized with reduced graphene oxide for enhanced hydrogen revolution reaction

• Published in: Applied physics. A, Materials science & processing Materials science & processing, 2023-06, Vol.129 (6), Article 426
• Main Authors: Li, Changle, Qiao, Hui, Liu, Yundan, Huang, Zongyu, Luo, Siwei, Wang, Ziyu, Qi, Xiang
• Format: Article
• Language: English
• Subjects: Applied physics; Characterization and Evaluation of Materials; Charge transfer; Condensed Matter Physics; Electrocatalysts; Graphene; Hydrogen evolution reactions; Machines; Manufacturing; Materials science; Nanosheets; Nanotechnology; Optical and Electronic Materials; Physics; Physics and Astronomy; Processes; Substrates; Sulfuric acid; Surfaces and Interfaces; Thin Films; Transition metal compounds; Two dimensional materials
• ISSN: 0947-8396; 1432-0630
• DOI: 10.1007/s00339-023-06690-2

SnSe with layered structure, as a member of 2D materials and transition metal chalcogenides, is a promising candidate of electrocatalyst for hydrogen evolution. Reduced graphene oxide (RGO) is an excellent substrate of electrocatalyst. In this work, SnSe nanosheets (NSs) had been prepared via liquid exfoliation, and the as-prepared SnSe NSs had been hybridized with RGO by a simple hydrothermal method. The SnSe/RGO hybrid shows superior hydrogen evolution reaction (HER) performance and charge transfer capability than SnSe NSs. In addition, it exhibits a superior HER performance in 1.0 M H 2 SO 4 with overpotential of − 298.79 mV (vs. RHE) at a current density of 10 mA/cm 2 and a Tafel slope determined to be only 97.56 mV/dec. Moreover, the SnSe/RGO hybrid as working electrode is provided with excellent durability, which is capable of maintaining working current for 10 h. As demonstrated above, relative high activity and stability and low price make the SnSe/RGO hybrid a promising electrocatalyst.