Constructing Ni–Co PBA derived 3D/1D/2D NiO/NiCo₂O₄/NiMn-LDH hierarchical heterostructures for ultrahigh rate capability in hybrid supercapacitors

Abstract

Engineering a kind of hierarchical heterostructure materials has been acknowledged the challenging but prepossessing strategy in developing hybrid supercapacitors. Thus, Ni-Co PBA derived 3D/1D heterostructure NiO/NiCo2O4 based layered double hydroxide...

A Co-Reactive Immunosensor Based on Ti3C2Tx MXene@TiO2–MoS2 Hybrids Promoting luminol@Au@Ni–Co NCs Electrochemiluminescence for CYFRA 21–1 Detection

“…In the Supporting Information, Ni–Co NCs detailed steps were described . First, 15 mg Ni–Co NCs was dissolved in 30 mL ethanol and stirred for 0.5 h. After adding 250 μL HAuCl 4 ·6H 2 O (1.0 wt %) stirred for 0.5 h, 10 μL NaBH 4 (3 mg mL –1 ) was quickly added to stirring for 1 h, washed and centrifuged several times.…”

“…In the Supporting Information, Ni−Co NCs detailed steps were described. 31 First, 15 mg Ni−Co NCs was dissolved in 30 mL ethanol and stirred for 0.5 h. After adding 250 μL HAuCl 4 •6H 2 O (1.0 wt %) stirred for 0.5 h, 10 μL NaBH 4 (3 mg mL −1 ) was quickly added to stirring for 1 h, washed and centrifuged several times. Subsequently, it was resuspended in 20 mL of ultrapure water, 1 mL of luminol (10 mmol L −1 ) was added, and the mixture was stirred for 8 h. The obtained product was centrifuged, purified, and dissolved in 0.1% chitosan for use at 4 °C.…”

Unveiling the potential of nanosheet-based NiTe2@MnTe hollow nanospheres in hybrid supercapacitor technology

“…The capacity value of the battery-like faradaic electrodes was estimated from the GCD measurement using the following equation that considers the capacity ( C s , C g −1 ), applied current ( I , A), mass of materials ( m , g), and discharge time (Δ t , s). 41 …”

MOF-derived NiAl2O4/NiCo2O4 porous materials as supercapacitors with high electrochemical performance

“…2d at 855.4 eV and 873.1 eV correspond to Ni 2+ , and two satellite peaks at 861.4 and 879.1 eV are also found. 25 In Fig. 2e, the fitted O 1s peaks at 532.2, 531.1 and 529.7 eV can be attributed to adsorbed oxygen, TM-O (TM = Co, Ni), and lattice oxygen, respectively.…”