A5033010913- Graphene research and applications
- Conducting polymers and applications
- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Nanomaterials for catalytic reactions
- Adsorption and biosorption for pollutant removal
- Advanced Photocatalysis Techniques
- Advanced Sensor and Energy Harvesting Materials
- Semiconductor materials and interfaces
- Recycling and Waste Management Techniques
- Molecular Junctions and Nanostructures
- Electromagnetic wave absorption materials
- Graphene and Nanomaterials Applications
- Electrochemical sensors and biosensors
- Membrane Separation Technologies
- Polymer Nanocomposite Synthesis and Irradiation
- Pickering emulsions and particle stabilization
- Environmental remediation with nanomaterials
- Additive Manufacturing and 3D Printing Technologies
- Electrohydrodynamics and Fluid Dynamics
- Chemical Looping and Thermochemical Processes
- CO2 Reduction Techniques and Catalysts
- Urban Transport Systems Analysis
- Particle Dynamics in Fluid Flows
- Advancements in Solid Oxide Fuel Cells
University of Calgary
2015-2024
University of Faisalabad
2020
Riphah International University
2020
Calgary Laboratory Services
2017
Nanocomposites of poly(methyl methacrylate)/reduced graphene oxide (PMMA/rGO) without and with decorated magnetite nanoparticles a segregated structure were prepared using emulsifier-free emulsion polymerization. Various characterization techniques employed to validate the presence nanofillers formation within nanocomposites. The percolation threshold nanocomposites was found be 0.3 vol %, while maximum electrical conductivity 91.2 S·m-1 electromagnetic interference shielding effectiveness...
Abstract In this research study, graphene oxide (GO) was synthesized using an improved Hummers method and thence oxygen‐based functional groups were replaced with octadecyl amine. Afterwards, epoxy‐based nanocomposites containing GO GO‐octadecyl amine (GO‐ODA) fabricated via a vacuum shock technique. The chemical resistance of the against various solvents, namely xylene, toluene distilled water, investigated effect degradation on hardness structural stability examined. Besides, SEM, contact...
A new, highly-exfoliated nitrogen-doped graphene is electrochemically synthesized, which enhances the catalytic activity of poly(anilineboronic acid) nanocomposite electrodes for dopamine detection in presence excess ascorbic acid. The sensing approach made up nanocomposites electrodeposited on surface a glassy carbon electrode via in-situ electrochemical polymerization anilineboronic acid monomers using cyclic voltammetry. thin layer DNA-functionalized nanotubes, and coated prior to...
This study demonstrates an all-graphene, additive-free aqueous-based ink for direct writing (DIW) to 3D-print functional aerogels electronics and electromagnetic interference (EMI) shields.
Fe-doped double perovskite materials show promise for renewable-derived carbon-neutral fuel production at significantly lower temperatures than current systems.
Electrochemically exfoliated graphene (EEG) with different levels of doping, electrical conductivity, and sheet size was synthesized a one-step method the resulting EEGs were incorporated in poly(vinyl alcohol) (PVA) matrix via simple solution-casting approach to prepare high-performance dielectrics. To maximize EEG potential for making nanocapacitor structure minimizing dielectric loss, we developed an aligned nanofiller structure. The codoped (as nanoelectrodes structure, at 4.0 wt %) PVA...
Abstract Tailoring the oil/water (O/W) interface is a prerequisite for structuring these two immiscible liquids into prescribed architectures, i.e., liquid‐in‐liquid printing, which an emerging area in material science. Here, assemblies of graphene oxide (GO) at O/W and air/W interfaces are characterized using wide range interfacial rheological techniques. It shown that GO nanosheets assemble interface, even extremely low concentrations as 0.04 vol%, significantly increasing elasticity or...
Electrochemical regeneration suffers from low efficiency due to side reactions like oxygen evolution, as well oxidation of the adsorbent. In this study, electrically conducting nanocomposites, including graphene/SnO2 (G/SnO2) and graphene/Sb-SnO2 (G/Sb-SnO2) were successfully synthesized characterized using nitrogen adsorption, scanning electron microscopy, transmission Raman spectroscopy. Thereafter, adsorption electrochemical performance nanocomposites tested methylene blue a model...
Electrochemical exfoliation of graphite is one the most efficient and easiest processes to produce high-quality graphene materials. In this study, efficiency methods for develop graphene-based electromagnetic interference (EMI) shields with high electrical conductivity was investigated. Exfoliation performed in four aqueous solutions inorganic salts Na2SO4, (NH4)2SO4, NH4NO3, (NH4)2HPO4, electrochemically exfoliated (EEG) thoroughly screened separate out more defective small sheets. A 30 μm...
Of the various methods available for preparation of graphene, thermal exfoliation via modified Hummer's method provides a low cost, scalable process. However process has several drawbacks: high temperature processing is required, quality graphene relatively poor, and chemical reduction required to reduce oxide generated by Electrochemical can be carried out under ambient conditions, controlling conditions properties produced tuned. In this study we evaluate electrochemical in aqueous...
During extraction of bitumen at high temperatures, release constituents oil and into produced water occurs. Naphthenic acids (NAs) are those which contaminate the end up in accumulation tailing ponds. NAs removal form is vital due to their toxicity for living beings as well corrosive nature. Pipeline separation system gas industry can be damaged by effect. One processes contribute from waters adsorption [1, 2]. Some adsorbents have been recently developed address environmental challenges...
One of the efficient and cost effective ways to remove organic contaminants from water is adsorption coupled with electrochemical oxidation. Graphite intercalated compounds (GIC) activated carbons (AC) are among common adsorbents for - regeneration process; nevertheless, they have significant shortcomings, i.e. GIC has low adsorptive capacity, whereas AC requires long time high energy consumption associated current efficiency cell voltages. Owing their huge surface area electrical...
Reduced graphene oxide (RGO) has been demonstrated to be an excellent adsorbent for many aqueous contaminants, including dissolved organics 1 . A challenge practical application remains the disposal of loaded adsorbent, with regeneration most desirable outcome. Anodic electrochemical successfully applied graphite flake organic contaminants 2 , however oxidation observed 3 In this study, anodic RGO and metal composites evaluated. Rapid corrosion was found occur during regeneration, so that...
Interfacial Assembly of Graphene Oxide In article number 2101659, Milad Kamkar, Uttandaraman Sundararaj, and co-workers demonstrate the great performance graphene oxide (GO) nanosheets at interface oil water. Super elasticity with highest ever reported interfacial storage modulus oil/water is achieved in presence only 0.04 vol.% GO, enabling sculpting water any desired shape.
Combining adsorption with electrochemical oxidation has been shown to be effective for the removal and of dissolved dispersed organic contaminants from water, using a graphite flake adsorbent. In order increase capacity, we have investigated use graphene based adsorbents, which high specific surface area combined activity. We prepared tested reduced oxide (RGO), foam metal composite materials. RGO offer significantly higher adsorptive capacity than flake. Similarly was found although...