量子电容修饰半导体纳米孔中的离子间相互作用
Quantum Capacitance Modifies Interionic Interactions in Semiconducting Nanopores
摘要：
由低维半导体材料制成的纳米孔，如碳纳米管和石墨烯狭缝孔，用于超级电容器。在其操作的理论和模拟中，通常假设这样的孔像金属孔一样屏蔽离子-离子相互作用，即屏蔽导致离子分离的相互作用电势的指数衰减。通过引入一个量子电容，占在材料中的状态密度，我们表明，在碳纳米管和石墨烯狭缝孔的离子-离子相互作用实际上衰减代数与离子分离。这一结果提出了一种基于调整孔的电子结构的电容优化的新途径：通过开发用金属材料或大块半金属材料制成的纳米孔，可以实现电容的显着增强。
英文摘要：
Nanopores made with low dimensional semiconducting materials, such as carbon nanotubes and graphene slit pores, are used in supercapacitors. In theories and simulations of their operation, it is often assumed that such pores screen ion-ion interactions like metallic pores, i.e. that screening leads to an exponential decay of the interaction potential with ion separation. By introducing a quantum capacitance that accounts for the density of states in the material, we show that ion-ion interactions in carbon nanotubes and graphene slit pores actually decay algebraically with ion separation. This result suggests a new avenue of capacitance optimization based on tuning the electronic structure of a pore: a marked enhancement in capacitance might be achieved by developing nanopores made with metallic materials or bulk semimetallic materials.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
