High-energy all-in-one stretchable micro-supercapacitor arrays based on 3D laser-induced graphene foams decorated with mesoporous ZnP nanosheets for self-powered stretchable systems

Supercapattery devices have grasped attention due to their remarkable specific energy (Es) without affecting their specific power (Ps), which is significantly higher compared to batteries and supercapacitors (SCs). In contrast to the traditional electric double layer capacitors (EDLCs) and pseudocapacitors (PCs), supercapattery devices have shown larger specific capacitance. Metal oxides, sulfides, phosphates, and metal-organic frameworks (MOFs) based materials have been extensively utilized for the advancement of hybrid energy storage devices (HESDs). Currently the challenges faced by this technology, is to improve the energy density without compromising the power density. The advantage of two merged technologies (battery and supercapacitor (SC)) into a single system, delivered tremendous power from capacitive components while high specific energy from battery grade material (BGM). This review covers the most recent improvements in vastly used electrode materials, with significant capacity as well as long cyclic life for high-performance supercapattery devices. Furthermore, this study aims to elaborate the electrochemical performance of the metal oxides, sulfides, phosphates, and MOFs for energy storage applications. 

Supercapattery: Merging of battery-supercapacitor electrodes for hybrid energy storage devices

Spinel ferrites (MFe2O4): Synthesis, improvement and catalytic application in environment and energy field.

Multifunctional ZnO nanoparticles bio-fabricated from Canna indica L. flowers for seed germination, adsorption, and photocatalytic degradation of organic dyes.

We investigate Atomic Layer Deposition (ALD) of metal oxide on pristine and functionalized graphene. On pristine graphene, ALD coating can only actively grow on edges and defect sites, where dangling bonds or surface groups react with ALD precursors. This affords a simple method to decorate and probe single defect sites in graphene planes. We used perylene tetracarboxylic acid (PTCA) to functionalize graphene surface and selectively introduced densely packed surface groups on graphene. Uniform ultrathin ALD coating on PTCA graphene was achieved over large area. The functionalization method could be used to integrate ultrathin high-k dielectrics in future graphene electronics.

Atomic Layer Deposition of Metal Oxides on Pristine and Functionalized Graphene

This research was funded by Spanish “Ministerio de Economia y Competitividad” (MAT2016-78155-C2-1-R, MAT2013-40950-R, MAT2011-27573-C04-02 and FPI grant BES-2011-046948 to MSM.A.), “Gobierno del Principado de Asturias” (GRUPIN14-060) and FEDER.

/pdf/impact-of-co2-substitution-on-microstructure-and-magnetic-3ghjun0exd.pdf

Impact of Co2+ Substitution on Microstructure and Magnetic Properties of CoxZn1-xFe2O4 Nanoparticles.

Extraction of thickness, linear and nonlinear optical parameters of Ge20+xSe80-x thin films at normal and slightly inclined light for optoelectronic devices

A facile approach to investigate the charge storage mechanism of MOF/PANI based supercapattery devices

Impact of Cu2+ cations substitution on structural, morphological, optical and magnetic properties of Co1-xCuxFe2O4 nanoparticles synthesized by a facile hydrothermal approach

Meshal Alzaid

Papers

Impact of Co2+ Substitution on Microstructure and Magnetic Properties of CoxZn1-xFe2O4 Nanoparticles.

Extraction of thickness, linear and nonlinear optical parameters of Ge20+xSe80-x thin films at normal and slightly inclined light for optoelectronic devices

A facile approach to investigate the charge storage mechanism of MOF/PANI based supercapattery devices

Impact of Cu2+ cations substitution on structural, morphological, optical and magnetic properties of Co1-xCuxFe2O4 nanoparticles synthesized by a facile hydrothermal approach

Controllable synthesis of La3+ doped Zn0.5Co0.25Cu0.25Fe2−xLaxO4 (x = 0.0, 0.0125, 0.025, 0.0375, 0.05) nano-ferrites by sol-gel auto-combustion route