A hierarchically structured Bi₂S₃/graphene aerogel composite is constructed that shows excellent sodium storage properties. Specifically, the composite delivers a stable reversible capacity of 397 mA h g⁻¹ at 100 mA g⁻¹ after 50 cycles and 348 mA h g⁻¹ at 1 A g⁻¹ after 120 cycles. Furthermore, even at a high current density of 2 A g⁻¹, a reversible capacity of 336 mA h g⁻¹ is achieved.

中文翻译：

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花状的Bi ₂ S ₃和石墨烯气凝胶偶联，具有优异的钠储存性能

构造出表现出优异的钠存储性能的分层结构的Bi ₂ S ₃ /石墨烯气凝胶复合材料。具体地，复合物在50个循环后在100mA g ^-1下提供397mA hg ^-1的稳定可逆容量，在120个循环后在1 A g ^-1下提供348 mA hg ^-1的稳定可逆容量。此外，即使在2 A g ^-1的高电流密度下，也可实现336 mA hg ^-1的可逆容量。