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Synthesis of Sub‐nanometer Porous Carbon Film for Energy Storage
Author(s) -
Shu Zhen,
Liu Zhifang,
Cao Huaqiang
Publication year - 2020
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.202000797
Subject(s) - nanometre , materials science , porosity , energy storage , nanotechnology , carbon fibers , chemical engineering , engineering physics , physics , engineering , composite material , composite number , power (physics) , quantum mechanics
Carbon‐based supercapacitors are a kind of supercapacitors with very promising applications because of their low cost, good stability and adjustable properties. Simple and rapid syntheses of carbon materials with a high surface area and narrow pore size distribution are of great significance to practical applications of carbon‐based supercapacitors. Here we report a new strategy to synthesize sub‐nanometer porous carbon films (Snp‐CF) via a condensation reaction under mild conditions. Carbon films exhibit a narrow pore size distribution (6.6 Å) and high surface area (508 m 2 g −1 ) after annealing at 700 °C. Snp‐CF‐700 displays a good specific capacity and excellent cycle performance (130 F g −1 after 5000 cycles, 118 % of initial 110 F g −1 ).