2D Cu-BDC MOF nanosheets were designed and synthesized by controlling the reaction time, and then annealed at different pyrolysis temperatures; the final MOF-derived carbons C₅₀₀ (Final product at 500 °C) and C₇₀₀ (Final product at 700 °C) were obtained by acid etching. Both carbon derivatives possessed abundant mesoporous structures which could facilitate ion migration and be conducive to the storage of lithium/potassium ions. C₅₀₀ and C₇₀₀ exhibited different dominant kinetic behaviors in lithium ion/potassium ion batteries. C₅₀₀, which was controlled by diffusion process, showed better performance when used as anode material for lithium-ion batteries (LIBs). The C₅₀₀ anode exhibited a reversible specific capacity of 690.4 mAhg^-1 at a current density of 0.1 Ag^-1. Even after 500 cycles at a current density of 5.0 Ag^-1, the high specific capacity of 210.3 mAhg^-1 was still maintained. C₇₀₀, which was dominated by surface capacitance contribution, was a superior anode material for potassium-ion batteries (PIBs). The reversible specific capacity of C₇₀₀ anode was maintained at 286.2 mAhg^-1 at the current density of 0.1 Ag^-1 after 100 cycles. Even after 500 cycles at a current density of 1.0 A g^-1, C₇₀₀ anode still maintained 170.8 mAhg^-1.

通过控制反应时间设计合成二维Cu-BDC MOF纳米片，然后在不同的热解温度下进行退火。最终的MOF衍生碳C ₅₀₀（最终产品在500°C）和C ₇₀₀（最终产品在700°C）通过酸蚀刻获得。两种碳衍生物均具有丰富的中孔结构，可以促进离子迁移并有利于锂/钾离子的存储。C ₅₀₀和C ₇₀₀在锂离子/钾离子电池中表现出不同的主导动力学行为。通过扩散过程控制的C ₅₀₀在用作锂离子电池（LIB）的负极材料时表现出更好的性能。C ₅₀₀阳极表现出690.4 mAhg的可逆比容量^-1 0.1 Ag构成的电流密度^-1。即使在以5.0 Ag ^-1的电流密度进行500次循环之后，仍保持了210.3 mAhg ^-1的高比容量。以表面电容贡献为主的C ₇₀₀是钾离子电池（PIB）的优质阳极材料。在100次循环后，在电流密度为0.1 Ag ^{-1的情况下}，C ₇₀₀阳极的可逆比容量保持在286.2 mAhg ^-1。即使在以1.0 A g ^-1的电流密度进行500次循环之后，C ₇₀₀阳极仍保持170.8 mAhg^-1。