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SnSe nanosheet hybridized with reduced graphene oxide for enhanced hydrogen revolution reaction
Applied Physics A ( IF 2.5 ) Pub Date : 2023-05-17 , DOI: 10.1007/s00339-023-06690-2
Changle Li , Hui Qiao , Yundan Liu , Zongyu Huang , Siwei Luo , Ziyu Wang , Xiang Qi

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 H2SO4 with overpotential of − 298.79 mV (vs. RHE) at a current density of 10 mA/cm2 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.



中文翻译:

SnSe 纳米片与还原氧化石墨烯杂化用于增强氢革命反应

具有层状结构的硒化亚锡作为二维材料和过渡金属硫族化物的一员,是一种很有前途的析氢电催化剂。还原氧化石墨烯(RGO)是一种优良的电催化剂底物。在这项工作中,已通过液体剥离制备 SnSe 纳米片 (NSs),并通过简单的水热法将所制备的 SnSe NSs 与 RGO 杂化。SnSe/RGO 杂化物显示出优于 SnSe NSs 的析氢反应 (HER) 性能和电荷转移能力。此外,它在 1.0 MH 2 SO 4中表现出优异的 HER 性能,在 10 mA/cm 2的电流密度下具有 − 298.79 mV(相对于 RHE)的过电势确定的 Tafel 斜率仅为 97.56 mV/dec。此外,作为工作电极的SnSe/RGO杂化物具有优异的耐久性,能够维持10小时的工作电流。如上所述,相对高的活性和稳定性以及低廉的价格使 SnSe/RGO 杂化物成为一种很有前途的电催化剂。

更新日期:2023-05-17
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