Monolithic co-aerogels of carbon/titanium dioxide as three dimensional nanostructured electrodes for energy storage

Three-Dimensional Porous Architectures of Carbon Nanotubes and Graphene Sheets for Energy Applications

“…Qiu et al (2014) prepared TiO 2 nanocrystal/graphene aerogel as LIB anode, using glucose as dispersion and linking agent. A reversible capacity of 956.2 mA h g −1 was achieved, which is superior to the previously reported TiO 2 /carbon electrodes (Yang et al, 2012). Even at a high current density of 5000 mA h g −1 , the hybrid foam electrode still gives a reversible capacity of 99 mA h g −1 , four times higher than that of pure TiO 2 based electrode.…”

Hydrogels: Promising Energy Storage Materials

“…Liu et al have synthesized 3D nanostructured electrodes based on the aerogels of carbon and titanium dioxide to improve the electrochemical performance by combining the surface storage mechanism and lithium insertion in LIBs anode . This hydrogel was directly used as an active electrode without using any additional binder and this resulted in appreciable improvement in performance of LIBs . Another anode material for LIBs was a graphene foams cross‐linked with pre‐encapsulate Fe 3 O 4 nanospheres .…”

Facile Preparation and Lithium Storage Properties of TiO2@Graphene Composite Electrodes with Low Carbon Content

“…To solve these issues, many auxiliary materials with excellent electrochemical properties were introduced into the TiO 2 electrode system, such as metals, transition‐metal compounds, and allotropes of carbon . Among the allotropes of carbon, graphene is considered an ideal auxiliary material for mixing or anchoring, because of its high surface area, superior electrical conductivity, good thermal stability, and excellent mechanical flexibility .…”

“…To solve these issues, many auxiliary materials with excellent electrochemical properties were introduced into the TiO 2 electrode system,s uch as metals,t ransition-metal compounds, and allotropes of carbon. [12][13][14] Amongt he allotropeso fc arbon,g raphenei sc onsidered an ideal auxiliary materialf or mixing or anchoring, because of its high surface area, superior electrical conductivity,g ood thermals tability, and excellent mechanical flexibility. [15,16] Introducing graphene into the TiO 2 electrode systemc ould both increasec onductivity ands urface area of the electrodesa nd buffer the strain from the volume change of TiO 2 during discharge-charge processes.…”