Pre-lithiated manganous oxide/graphene aerogel composites as anode materials for high energy density lithium ion capacitors

Nb2CT MXene: High capacity and ultra-long cycle capability for lithium-ion battery by regulation of functional groups

“…5, the composition of the surface functional groups of the materials can be identified. The broad peak at 3419 cm À1 and the sharp peaks at 1385 and 1475 cm À1 of all samples are attributed to the tensile vibration and deformation vibration of O-H, respectively [28][29][30]. The peaks at 1051, 1091 and 1639 cm À1 can be attributed to the stretching vibration of C-O, C-F and C=O, respectively [31].…”

Synthesis of holey graphene for advanced nanotechnological applications

“…Electrochemical exfoliation 114 and nanoimprint lithography 115 methods are also used for the synthesis of HG. Other reported methods such as the sol–gel technique have been used to prepare porous graphene aerogel for capacitor application 116 and laser engraving was implemented to create 3D hierarchically porous graphene for supercapacitor electrode application. 117 The combustion method is another approach employed to fabricate porous graphene from GO.…”

“…The green synthesis method is a promising approach for the synthesis of HG/porous graphene where various biomaterials such as, Bougainvillea owers, fungus, biomass or leaves of Plumeria rubra have been used as the starting raw material. [111][112][113] This method is environmentally friendly and likely to be cost-effective as compared to other Other reported methods such as the sol-gel technique have been used to prepare porous graphene aerogel for capacitor application 116 and laser engraving was implemented to create 3D hierarchically porous graphene for supercapacitor electrode application. 117 The combustion method is another approach employed to fabricate porous graphene from GO.…”

Conductive NiMn-based bimetallic metal–organic gel nanosheets for supercapacitors

“…The highest specific capacitance of NiMn-3 MOG was attributed to the laminated nanosheets, exposed metal sites and high specific surface formed by aerogel, supplying adequate electroactive sites for the electrochemical reaction and rapid channel for electrolyte diffusion. 36 Fig. 6(c) is the CV test at various scan rates to estimate the rate capability of the NiMn-3 MOG composite.…”