Hierarchical porous carbon with ordered straight micro-channels templated by continuous filament glass fiber arrays for high performance supercapacitors

Abstract

Hierarchical porous carbon with highly ordered straight micro-channels was prepared though a facile melt vacuum infiltration method using continuous filament glass fiber arrays as the template and glucose as the precursor.

Porous Carbons: Structure‐Oriented Design and Versatile Applications

“…The ordered mesopores boosted effective Li + diffusion and electron transfer, while the macropores provided channels for O 2 diffusion in rechargeable Li–O 2 battery. Via a vacuum melt infiltration approach and utilizing glass fiber arrays as the template and glucose as a carbon source, ordered porous carbon with straight microchannels was prepared, [ 264 ] which was then treated by KOH activation to generate micro/mesopores on the ordered macropore channel walls. As an electrode material for supercapacitors, the optimal sample (SSA = 1880 m 2 g −1 ) exhibited a capacitance of 283 F g −1 at 0.25 A g −1 in 6 m KOH.…”

Hybrid Manufacturing of 3D Hierarchical Porous Carbons for Electrochemical Storage

“…[ 46 ] The intensity ratio of D‐band to G‐band ( I D / I G ) can be calculated to be 0.82 to 1.03 (Table S2, Supporting Information), suggesting a highly disordered structure of the prepared carbons. [ 7,47 ] The intensity ratio differences might be ascribed to the chemical structure of the photosensitive resin precursor. [ 42,48 ]…”

“…The distinguished decrease of the I D / I G of 960‐Act sample compared with the 960 sample is because the KOH amount is large, which enhances the graphitization. [ 7,49 ]…”

Eco-friendly and facile one-step synthesis of a three dimensional net-like magnetic mesoporous carbon derived from wastepaper as a renewable adsorbent

“…19 In order to design a "smart" carbon material with high specic surface area, pores structure, suitable pore size, numerous methods have been used, such as so template, hard template, chemical/physical activation and halogen erosion method. [20][21][22] However, these current prevailing strategies need a complex synthetic procedure or costly ingredients, as well as the utilization of toxic and erosion solutions, such as sodium and potassium hydroxide (NaOH and KOH) or hydrouoric acid (HF). [22][23][24] In addition, previous efforts on the transformation of precursors into carbon material almost relied on harsh synthesis conditions, for instance, chemical vapor deposition, 25 pyrolysis in sealed reactors, 26 or salt melt-based ionothermal carbonization.…”