Co2SnO4/activated carbon composite electrode for supercapacitor

Conjugated NiO‐ZnO/GO nanocomposite powder for applications in supercapacitor electrodes material

“…This attracted researchers interest because of their unique properties such as good physical structure, chemically stable (inertness), high electrical conductivity, better magnetic and optical performance. Many architectures of these nanocomposites have been fabricated using carbonaceous or GO such as Co 2 SnO 4 /activated carbon for supercapacitors electrode application . SnO 2 /GO coated with Co 3 O 4 nanospheres applied in the lithium‐ion battery, SnO 2 ‐Co 3 O 4 /rGO used in producing supercapacitors electrode materials.…”

“…Many architectures of these nanocomposites have been fabricated using carbonaceous or GO such as Co 2 SnO 4 /activated carbon for supercapacitors electrode application. 13 16 fabricated CoNi 2 S 4 / graphene nanocomposites with a specific capacitance of 2009.1 F g −1 with a current density of 1.0 A g −1 that was sustained to 755.4 F g −1 using a current density of 4.0 A g −1 after 2000 charge and discharge cycle. Zhu and Shao 17 synthesized NiO/ZnO nanocomposite as electrode material for supercapacitors, they obtained a specific capacitance of 976.0, 936.0, and 904.0 F g −1 at the current densities of 1.0, 2.0, and 4.0 A g −1 , respectively.…”

In situ synthesis of advantageously united copper stannate nanoparticles for a new high powered supercapacitor electrode

“…9f. The capacitance still remains about 92.4% after 3000 cycles, which suggests an excellent rate capability of the device which is high compared to previously reported transition metals stannates and other binary metal oxides supercapacitor devices such as Mn 2 SnO 4 //Mn 2 SnO 4 (75% after 1000 cycles), 12 Co 2 SnO 4 //AC (70.6% after 1000 cycles), 36 MFO-NSAs//AC (87.3% after 3000 cycles), 43 FeO 4 W/f-MWCNTs symmetric supercapacitor (78.54% after 10 000 cycles), 63 and PCNF//AC (92% after 800 cycles at 2 A g −1 ). 64…”

“…6e). More remarkably, the specific capacitance of the Cu 2 SnO 4 NPs is greater than those of the electrodes based on other transition metal stannates recently reported, such as Mn 2 SnO 4 nanocubes (144 F g −1 at 3 mA cm −2 ), 12 Co 2 SnO 4 /activated carbon composite electrodes (285.3 F g −1 at 5 mA cm −2 ), 36 Co 2 SnO 4 nanocubes (237 F g −1 at 0.5 mA cm −2 ), 37 Co 2 SnO 4 nanoparticles (596 F g −1 at 2 mV s −1 ), 38 Mn 2 SnO 4 /Sn/C composites (908 mA h g −1 at 500 mA g −1 ), 41 and Zn 2 SnO 4 (1384 mA h g −1 ). 57…”

“…Among different electrode materials for electrochemical capacitors, many transition-metal oxides (MTMOs), including stannates, ferrites, cobaltates, and nickelates, have been used as electroactive materials in high-performance supercapacitors. For example, ternary transition metal stannates, including Co 2 SnO 4 , 36–38 Zn 2 SnO 4 , 39 Mg 2 SnO 4 , 40 and Mn 2 SnO 4 41 have received great interest due to their low cost, environmental friendliness and high performance in many energy storage applications such as Li-ion batteries and supercapacitors. They can increase the electrochemical performances synergistically in terms of reversible capacity, fast electrode kinetics, high structural stability, electrical conductivity and favorable electroactive surface/interface between the electrode and electrolyte.…”