Stable metal-organic frameworks (MOFs) with the required functions have unique advantages in practical applications. Herein, we studied the electrochemical property of a stable zirconium-based MOF, Zr₆(μ₃-O)₄(μ₃-OH)₄(OH)₆(H₂O)₆(HCHC) (PCN-136), which contains a hexacarboxylate linker with a π-conjugated nanographene moiety (HCHC = hexakis(4-carboxyphenyl)hexabenzocoronene). In light of the high chemical stability and π-conjugated nanographene moiety, PCN-136 exhibits a specific capacitance of 694 F g⁻¹ at the current density of 0.5 A g⁻¹ in a 6 M KOH aqueous solution. PCN-136 holds great potential as a high-performance capacitive material for electrochemical energy storage.

具有所需功能的稳定的金属有机框架（MOF）在实际应用中具有独特的优势。在本文中，我们研究了基于锆稳定MOF的电化学性能，Zr的₆（μ ₃ -O）₄（μ ₃ -OH）₄（OH）₆（H ₂ O）₆（HCHC）（PCN-136），其中含有带有π共轭纳米石墨烯部分的六羧酸酯连接基（HCHC =六（4-羧基苯基）六苯并六氢呋喃）。鉴于高化学稳定性和π共轭纳米石墨烯部分，PCN-136在电流密度为0.5 A g ^-1时显示出694 F g ^-1的比电容在6 M KOH水溶液中。PCN-136作为一种用于电化学能量存储的高性能电容材料具有巨大的潜力。