Fabrication of a vanadium nitride/N-doped carbon hollow nanosphere composite as an efficient electrode material for asymmetric supercapacitors

Abstract

Using low-cost material and facile process to obtain novel electrode material for assembling asymmetric supercapacitors (ASC) is urgently needed. Herein, vanadium nitride/nitrogen-doped carbon nanosphere (VN/NCS) composite composed of VN nanoparticles...

Phytic acid controlled in situ synthesis of amorphous cobalt phosphate/carbon composite as anode materials with a high mass loading for symmetrical supercapacitor: amorphization of the electrode to boost the energy density

“…6G). 2,18,[53][54][55][56][57][58][59][60][61] The highest volumetric energy density was achieved 2.0 mW h cm À3 at a 31.65 mW cm À3 power density (Fig. S23B †).…”

VN@C hollow structures derived from ZIF-8 templates for a lithium-ion battery anode

“…2a, the broad diffraction peak centered at ∼25° is associated with amorphous carbon. 34 However, from the TGA curves, the decomposition process started at an earlier stage for V 2 O 5 @ZIF-8 (300 °C) as compared to that for ZIF-8 (450 °C). The lower decomposition temperature of V 2 O 5 @ZIF-8 can be attributed to the presence of V 2 O 5 .…”

Vanadium nitride nanoparticle decorated N-doped carbon nanotube/N-doped carbon nanosheet hybrids via a C3N4 self-sacrificing method for electrochemical capacitors

“…16 Except for metal-oxides, lots of VN/carbon nanocomposites have been fabricated and achieved enhanced electrochemical performance. [17][18][19] Recently, C 3 N 4 was chosen as N-doped source for preparation of N-doped carbon materials. 20,21 In addition, C 3 N 4 can also be used for the synthesis of nitrides, such as VN, TiN, MoN et al [22][23][24][25] During these processes, C 3 N 4 decomposes under high temperature and is easy to eliminate.…”

“…16 Except for metal-oxides, lots of VN/carbon nanocomposites have been fabricated and achieved enhanced electrochemical performance. 17–19…”