Abstract Graphene oxide – molybdenum disulfide hybrid membranes were prepared using vacuum filtration technique. The thickness and the MoS 2 content in the membranes were varied and their H 2 permeance and H 2 /CO 2 selectivity are reported. A 60 nm hybrid membrane containing ~ 75% by weight of MoS 2 exhibited the highest H 2 permeance of 804 × 10 −9 mol/m 2 s Pa with corresponding H 2 /CO 2 selectivity of 26.7; while a 150 nm hybrid membrane with ~ 29% MoS 2 showed the highest H 2 /CO 2 selectivity of 44.2 with corresponding H 2 permeance of 287 × 10 −9 mol/m 2 s Pa. The hybrid membranes exhibited much higher H 2 permeance compared to graphene oxide membranes and higher selectivity compared to MoS 2 membranes, which fully demonstrated the synergistic effect of both nanomaterials. The membranes also displayed excellent operational long-term stability.

中文翻译：

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用于氢分离的氧化石墨烯-二硫化钼杂化膜

摘要 采用真空过滤技术制备了氧化石墨烯-二硫化钼杂化膜。膜中的厚度和MoS 2 含量是变化的，并且报告了它们的H 2 渗透性和H 2 /CO 2 选择性。含有~75%重量MoS 2 的60 nm混合膜表现出最高的H 2 渗透率为804×10 -9 mol/m 2 s Pa，相应的H 2 /CO 2 选择性为26.7；而具有~29% MoS 2 的 150 nm 混合膜显示出最高的 H 2 /CO 2 选择性为 44.2，相应的 H 2 渗透率为 287 × 10 -9 mol/m 2 s Pa。混合膜显示出更高的 H 2 渗透率与氧化石墨烯膜相比具有更高的选择性，并且与 MoS 2 膜相比具有更高的选择性，这充分证明了两种纳米材料的协同效应。