Data from: A novel adenine-based-MOF derived nitrogen-doped nanoporous carbon for flexible solid-state supercapacitor

In this article, we have synthesized a series of nitrogen-doped nanoporous
carbon (NPC) from metal organic framework (MOF) of UiO-66 with different
ratio of adenine and coated on carbon nanotube film (CNTF) to obtain a
flexible porous electrode (NPC/CNTF). It is worth noting that the
introduction of adenine at different ratio did not change the structure of
UiO-66. We also investigated the effect of carbonization temperature from
800 to 1000 °C on the electrochemical properties of the NPC. The ratio (1,
4-benzendicarboxylate: adenine) 9:1 and the NPC carbonized at 900 °C
(noted as NPC-1-900) exhibits better electrochemical properties. The
results show that NPC-1-900/CNTF electrode exhibits an exceptionally areal
capacitance of 121.5 mF cm-2 than that of PC-900/CNTF electrode (22.8 mF
cm-2) at 5 mV s-1 in a three-electrode system, indicating that the
incorporation of nitrogen is beneficial to the electrochemical properties
of nanoporous carbon. A symmetric flexible solid-state supercapacitor of
NPC-1-900/CNTF has also been assembled and tested. Electrochemical date
shows that the device exhibited superior areal capacitance (43.2 mF cm-2)
at the scan rate of 5 mV s-1, the volumetric energy density is 57.3 µWh
cm-3 and the volumetric power density is 2.4 mW cm-3 at the current
density of 0.5 mA cm-2 based on PVA/H3PO4 gel electrolyte. For practical
application, we have also studied the bending tests of the device, which
show that the device exhibits the outstanding mechanical stability under
different bending angles. Furthermore, the flexible device shows excellent
cyclic stability, which can retain 91.5% of the initial capacitance after
2000 cycles.