Microwave-assisted one-pot synthesis of Fe2O3/CNTs composite as supercapacitor electrode materials

α‐Fe2O3 Based Carbon Composite as Pure Negative Electrode for Application as Supercapacitor

“…The α‐Fe 2 O 3 /MWCNT composites exhibit high surface area, excellent cycling stability (65 % capacitance retention after 500 cycles), good rate stability (ca. 68.6 % capacitance retention from 2 to 4 A g –1 ), high specific capacitance (437.5 F g –1 at 2 A g –1 ) which greater than those original α‐Fe 2 O 3 (180 F g –1 at 2 A g –1 ) and MWCNT (87.5 F g –1 at 2 A g –1 ) (as shown in Figure (III)) and energy density of 38.89 W h kg –1 with a power density of 800 W kg –1 …”

“…Yue et al have synthesized Fe 2 O 3 /CNTs composites with shell‐core hierarchy architecture via microwave‐assisted method. The obtained materials exhibit high specific capacitance (204 F g –1 at 0.5 A g –1 ), high energy density (28.3 Wh kg –1 at power density of 1 kW kg –1 ) . As shown in Figure , Raut et al have successfully synthesized α‐Fe 2 O 3 /MWCNT composites via a SILAR method.…”

“…(III) GCD curves of (a) MWCNT (b) Fe 2 O 3 and (c) Fe 2 O 3 /MWCNT thin film in the three electrode system at different current densities; (d) comparison of cycle stability of Fe 2 O 3 /MWCNTs, Fe 2 O 3 , and MWCNT thin film electrodes. Reproduced from ref . with permission from The Royal Society of Chemistry.…”

A novel carbon nanotube–magnesium oxide composite with excellent recyclability to efficiently activate peroxymonosulfate for Rhodamine B degradation

“…14a. It can be seen that a small semicircular curve at high frequency and a straight line at low frequency in CNTs/MgO are detected while only a straight line in MgO, pointing out that CNTs/MgO has smaller resistance than MgO [51,52]. The cyclic voltammetry (CV) curves of CNTs/MgO and MgO were collected at scan rate of 50 mV/s, no obvious redox peaks are detected in curves (Fig.…”

Porous Fe2O3 Nanorods on Hierarchical Porous Biomass Carbon as Advanced Anode for High-Energy-Density Asymmetric Supercapacitors

“…By constructing integrated hybrid electrodes, α-Fe 2 O 3 is directly deposited onto conductive skeletons of carbonaceous materials. Carbon nanotubes (Dong et al, 2018;Yue et al, 2018), porous carbon (Arun et al, 2019), and graphene (Xu et al, 2019) can overcome this vexing issue of low conductivity, which indeed demonstrates that integrated hybrid electrodes show better electrochemical performances than individual components because of the synergistic effect between the α-Fe 2 O 3 nanostructure and the carbon configurations. Thus, far, the unsatisfactory dispersion and small surface area of α-Fe 2 O 3 still causes a relatively low specific capacitance.…”