Synthesis of 3D marigold flower-like rGO/BN/Ni(OH)₂ternary nanocomposites for supercapacitor applications

Abstract

Supercapacitors are efficient and developing energy storage devices.

Cooperative catalysis of Zn3(VO4)2/Ni(OH)2/rGO nanosheet arrays advancing highly active O2 reduction and water-splitting

“…22 Similarly, as shown in Fig. S9 [23][24][25][26][27][28] In addition, the positive shift of metal-oxygen (M-O) in binding energy linked to Zn 3 (VO 4 ) 2 /Ni(OH) 2 and rGO interactions is due to a change in the atomic coordination number or charge-transfer effects. 29 For Zn 3 (VO 4 ) 2 /Ni(OH) 2 , the respective peaks at 856.0 and 873.7 eV for Ni 2p 3/2 and Ni 2p 1/2 , are accompanied by the respective satellites at 861.6 and 879.9 eV, which can be ascribed to the characteristic peak of Ni 2+ (Fig.…”

“…As expected, compared with Zn 3 (VO 4 ) 2 /Ni(OH) 2 , three distinct peaks (H–OH, CO, and C–O) appear in the Zn 3 (VO 4 ) 2 /Ni(OH) 2 /rGO nanosheet arrays, which proves that Zn 3 (VO 4 ) 2 /Ni(OH) 2 nanosheets are successfully loaded onto the rGO support. 23–28 In addition, the positive shift of metal–oxygen (M–O) in binding energy linked to Zn 3 (VO 4 ) 2 /Ni(OH) 2 and rGO interactions is due to a change in the atomic coordination number or charge-transfer effects. 29 For Zn 3 (VO 4 ) 2 /Ni(OH) 2 , the respective peaks at 856.0 and 873.7 eV for Ni 2p 3/2 and Ni 2p 1/2 , are accompanied by the respective satellites at 861.6 and 879.9 eV, which can be ascribed to the characteristic peak of Ni 2+ (Fig.…”

Synthesis and Modification of Boron Nitride Nanomaterials for Electrochemical Energy Storage: From Theory to Application

“…To improve the electrode capacitance, pseudocapacitors (such as Ni(OH) 2 , Fe 3 O 4 , NiO, α-MnO 2 , and Ni 3 S 2 /NiS 2 ) have been added to BN-C-based composites. [74,[78][79][80][81] Nayak and coworkers focused on the characteristics of BN in supercapacitors with modifying polyaniline (PANI). [74] BN prevents the material from laminating and changes the surface morphology.…”

Density functional theory studies on graphene/h-boron nitride hybrid nanosheets for supercapacitor electrode applications

“…48 Experimentally, the h-BN/rGO hybrid superlattice and the rGO/BN/Ni(OH)2 hybrid nanocomposite were used as an electrode material and were observed to have a higher energy density. 49,50 From the literature, it is clear that experimentally combining graphene with h-BN not only improved the energy density of the supercapacitor but also formed a distinct interface between layers. Also, theoretically, the formation of a sharp interface between graphene and h-BN nanosheets seems to offer precise control over the tunability of electronic properties.…”

“…48 Experimentally, the h-BN/rGO hybrid superlattice and the rGO/BN/Ni(OH)2 hybrid nanocomposite were used as an electrode material and were observed to have a higher energy density. 49,50…”