A multi-interface CoNi-SP/C heterostructure for quasi-solid-state hybrid supercapacitors with a graphene oxide-containing hydrogel electrolyte

Abstract

A quasi-solid-state HSC was assembled by a reasonable multi-phase hybrid material and a novel high ionic conductivity hydrogel electrolyte, which exhibited excellent energy/power density (55.6 W h kg−1/8293.3 W kg−1) and long lifespan of 10 000 cycles.

A forest geotexture-inspired ZnO@Ni/Co layered double hydroxide-based device with superior electrochromic and energy storage performance

“…52 In general, charge storage consists of surface capacitive-controlled (originating from ion adsorption/desorption) and diffusion-controlled (caused by faradaic redox reactions) contributions. 53 The power-law rule was used to shed light on the charge storage behavior of ZnO@Ni/Co-LDH by using: 54 i = av b log( i ) = log( a ) + b log( v )where a and b are adjustable parameters and ν represents the applied scan rate. The expected value of b between 0.5 and 1.0 can be calculated from the slope of the log( i ) versus log( ν ) plot.…”

“…52 In general, charge storage consists of surface capacitive-controlled (originating from ion adsorption/desorption) and diffusioncontrolled (caused by faradaic redox reactions) contributions. 53 The power-law rule was used to shed light on the charge storage behavior of ZnO@Ni/Co-LDH by using:…”

Novel metal enhanced dual-mode fluorometric and SERS aptasensor incorporating a heterostructure nanoassembly for ultrasensitive T-2 toxin detection

“…Recently, two-dimensional (2D) layered graphene oxide (GO) has attracted significant attention for application in SERS and also has superquenching ability because of its distinct properties. [30][31][32] GO can interact easily with various organic analyte molecules via p-p stacking to facilitate the transfer of charge from the analyte molecules which makes it an ideal substrate material for various applications in SERS. 6,33,34 The hybridization of plasmonic nanostructures (Au, Ag) with GO has been confirmed for high-performance SERS biosensing and pinpointed Au nanostars (AuNS) as excellent SERS substrates.…”

Graphene Oxide–Carbamoylated Chitosan Hydrogels with Tunable Mechanical Properties for Biological Applications

“…15 GO, due to its ability to confer high electrical conductivity to hydrogels, has been utilized by Li et al to construct a quasi-solid-state supercapacitor made from PVA, PAM, and GO. 16 The mechanical properties of GO nanosheets have been exploited for the preparation of the anode made of the reduced GO shell with Si nanoparticles and CMC/PEO as the hydrogel core for Li-ion batteries by She et al 17 Additionally, the characteristics of CH-based materials vary with the degree of deacetylation (DDA) and CH molecular weight (M w ), affecting their functionality in different applications. DDA affects the M w and the flexibility of the CH chains, while M w affects the crystallinity, morphology, viscosity, elasticity, and strength.…”

“…For example, Paul et al have previously fabricated an injectable GelMA/PEI functionalized GO nanosheet hydrogel for gene delivery to damaged cardiac tissue . GO, due to its ability to confer high electrical conductivity to hydrogels, has been utilized by Li et al to construct a quasi-solid-state supercapacitor made from PVA, PAM, and GO . The mechanical properties of GO nanosheets have been exploited for the preparation of the anode made of the reduced GO shell with Si nanoparticles and CMC/PEO as the hydrogel core for Li-ion batteries by She et al…”