Highly
Compressible Nitrogen-Doped Carbon Foam Electrode
with Excellent Rate Capability via a Smart Etching and Catalytic Process
Kang Xiao
Yanhua Zeng
Jin Long
Hongbin Chen
Liang-Xin Ding
Suqing Wang
Haihui Wang
10.1021/acsami.7b02381.s001
https://acs.figshare.com/articles/journal_contribution/Highly_Compressible_Nitrogen-Doped_Carbon_Foam_Electrode_with_Excellent_Rate_Capability_via_a_Smart_Etching_and_Catalytic_Process/4905656
Freestanding three-dimensional
nitrogen-doped carbon foam with
large pores is proposed as a promising electrode configuration for
elastic electronics. Although it exhibits excellent mechanical performance,
the capacitive performances (especially its rate capability) are still
unsatisfactory. By using KMnO<sub>4</sub>, we demonstrate a smart
etching and catalytic process to form highly graphitized and etched
nitrogen-doped carbon foam (ENCF) with an exfoliated carbon-shell
architecture. These compositional and structural features endow the
ENCF electrodes with excellent electron conductivity as well as more
ion-accessible electrochemical active sites. Significantly, all-solid-state
symmetric supercapacitor devices based on the ENCF electrodes exhibit
enhanced specific capacitance and marked high-rate capability. Furthermore,
the integrated device has no significant capacity loss under 60% compressive
strain.
2017-04-17 00:00:00
nitrogen-doped carbon foam
capacity loss
KMnO 4
Excellent Rate Capability
ENCF electrodes
ion-accessible electrochemical
electron conductivity
electrode configuration
exfoliated carbon-shell architecture
Catalytic Process Freestanding
rate capability
supercapacitor devices
ENCF electrodes exhibit
Compressible Nitrogen-Doped Carbon Foam Electrode
capacitive performances
Smart Etching