g-C3N4 promoted NiFe-LDH self-assemble high performance supercapacitor composites

NiFe-LDH/g-C3N4 binary heterostructures with 2D/2D configuration for highly efficient photocatalytic degradation of antibiotics and hydrogen production

“…2(c)) can be fitted with two spin–orbit doublets of Ni 2p 3/2 and Ni 2p 1/2 at 856.1 and 873.6 eV, respectively, and the two corresponding satellite peaks at 861.5 and 879.9 eV are attributed to Ni 2+ species in NiFe-LDH. 19 For the 1.8LDH/CN nanocomposite, the peak positions of Ni 2p 3/2 and Ni 2p 1/2 shift to higher binding energy relative to that of pure LDH. The Fe 2p spectrum of pristine LDH (Fig.…”

“…Layered double hydroxides (LDHs), a kind of typical 2D inorganic materials, exhibit interesting physicochemical properties. 19 Salehi et al synthesized Ni-Al-LDH/g-C 3 N 4 composites with various weight percentages of g-C 3 N 4 and studied their photocatalytic activity for removing Rhodamine B (RhB) and methyl orange (MO) from wastewater. 20 Abazari et al synthesized g-C 3 N 4 @Ni–Ti layered double hydroxides with large surface areas using an optimized hydrothermal method.…”

“…In the case of 1.8LDH/CN, all the peaks in the N 1s spectrum were positioned at lower binding energies relative to pure CN. The Ni 2p spectrum (Fig.2(c)) can be fitted with two spin-orbit doublets of Ni 2p 3/2 and Ni 2p 1/2 at 856.1 and 873.6 eV, respectively, and the two corresponding satellite peaks at 861.5 and 879.9 eV are attributed to Ni 2+ species in NiFe-LDH 19. For the 1.8LDH/CN nanocomposite, the peak positions of Ni 2p 3/2 and Ni 2p 1/2 shift to higher binding energy relative to that of pure LDH.…”

Progress of layered double hydroxide-based materials for supercapacitors

“…The hybrid supercapacitor assembled with this electrode had an energy density of 34.61 W h kg −1 at 831 W kg −1 and a capacitance retention of 129% at 4 A g −1 after 5000 cycles and 85% after 10 000 cycles at 10 A g −1 . Li et al 219 successfully fabricated soluble graphite nitride (SCN) nanosheets NiFe-LDHs by electrostatic self-assembly (Fig. 14(d)) as a one-layer high performance electrode (NiFe-LDHs@SCN) for supercapacitors.…”

Enhancing Electrochemical Performance with g-C3N4/CeO2 Binary Electrode Material

“…This process of combining different materials with different properties is commonly referred to as “composite design” and has been applied to various energy storage materials to enhance their performance. By leveraging the benefits of both the pseudocapacitive phases and g-C 3 N 4 , it is possible to achieve a synergistic improvement in the electrochemical properties of the materials, e.g., NiCo 2 O 4 /O-g-C 3 N 4 [ 6 ]; NiCo 2 C 2 O 4 /g-C 3 N 4 [ 7 ]; Co-g-C 3 N 4 nanostructure [ 8 ]; BP/g-C 3 N 4 nanostructure [ 9 ]; Cu-g-C 3 N 4 [ 10 ]; CuO/g-C 3 N 4 [ 11 ]; NiAl/g-C 3 N 4 [ 12 ]; g-C 3 N 4 /AgI [ 13 ]; g-C 3 N 4 /CuI [ 14 ]; g-C 3 N 4 /CoNi x S y [ 15 ]; g-C 3 N 4 /Sm(OH) 3 [ 16 ]; NiFe-LDH/g-C 3 N 4 [ 17 ]; MnCo 2 O 4 /g-C 3 N 4 [ 18 ]; NiFe 2 O 4 /g-C 3 N 4 [ 19 ], MnO 2 /g-C 3 N 4 [ 20 ]. These studies demonstrate the significance of g-C 3 N 4 -type binary materials for supercapacitor electrodes and their potential as binary composites.…”