图1、
a) Schematic overview of the synthetic pathways to HTMC, TMC, and MPC. SEM images of b,c) GO@ZIF-8, e,f) GO@ZIF-8@mPDA, h,i) GO@mPDA. TEM images of d) GO@ZIF-8, g) GO@ZIF-8@mPDA, and j) GO@mPDA.
图2、Schematic illustrations of pore structures and morphologies of a-i) TMC, b-i) HTMC, and c-i) MPC. SEM images of a-ii, iii) TMC, b-ii, iii) HTMC, and c-ii, iii) MPC. TEM images of a-iv) TMC, b-iv) HTMC, and c-iv) MPC. STEM images of HTMC with d-i) secondary electron and d-ii) dark field. e) XRD spectra for TMC, MPC, and HTMC. f) TGA and DTG of GO, ZIF-8, GO@ZIF-8, and GO@ZIF-8@mPDA. g) N
2
adsorption-desorption isotherms for TMC, MPC, and HTMC. h)
S
BET
and pore volumes for TMC, MPC, and HTMC.
图4、
High-resolution TEM images of a) TMC, b) MPC, and c) HTMC. STEM dark-field images and EDS mapping of d) TMC, e) MPC, and f) HTMC. g-i) Schematic description of nitrogen bonding type in the carbon microstructure. g-ii) Relative percentages of nitrogen bonding type calculated from N 1s high-resolution XPS spectra.
图5、a) CV curves at 500 mV s
−1
and b) GCD curves at 3 A g
−1
, and c)
C
sp
values at various scan rates from 1 mV s
−1
to 500 mV s
−1
of TMC, MPC, and HTMC measured in 1 M H
2
SO
4
. d) ECSA values and ECSA values of TMC, MPC, and HTMC normalized to their
S
BET
values. e) Frequency-dependent capacitance plot showing imaginary capacitance of TMC, MPC, and HTMC from 10 MHz to 100 kHz, f) specific capacitance values (
C
sp_EIS
) and relaxation time constants (τ
0
) calculated from EIS data for TMC, MPC, and HTMC, and g) schematic illustrations of ion and electron mobility through the hierarchically porous network of HTMC.
