Aasiya Shaikh

imec · Energy

We report a facile, ecofriendly, surfactant-free one step green synthesis of a silver-reduced graphene oxide nanocomposite (Ag-RGO) using a Justicia adhatoda (adulsa) leaf extract as green reducing agent and its application to construct a nitrite (NO2⁻) sensor. The crystallinity, size, morphology and composition of as prepared Ag-RGO nanocomposite...

The rapid growth of miniaturized electronic devices has increased the demand for energy storage devices with small dimensions. Micro-supercapacitors have great potential to supplement or replace batteries and electrolytic capacitors for a wide range of applications. Micro-supercapacitor can be fabricated with micro-electronic devices for efficient...

Highly dispersed, ultrafine Pd nanoparticle decorated carbon nano-onions (CNO) were prepared by a facile, one-step sonochemical method. The presence of surface functional groups and the mesoporosity of the as-prepared CNO helped achieve high nanoparticle dispersion at a high Pd loading with a marginal effect on the particle size under the sonochemi...

In this article, we have investigated the consequences of the next to the leading order correction to the effective field theory of nanostructures. This has been done by analyzing the effects of deformed Heisenberg algebra on nanowires and nanotubes. We first deform the Schrodinger equation with cylindrical topology. Then specific solutions to the defor...

In this letter, we analyze low energy implications of discrete spacetime, which is motivated from quantum gravity. We first investigate the effects of leading order Planckian lattice corrections on the deformation of the low energy effective Heisenberg algebra. Then we study the corrections to such an algebra from higher order Planckian lattice cor...

In this work, we investigate the implications of the concept of quantum speed limit in string field theory. We adopt a novel approach to the problem of time on world-sheet based on Fisher information, and arrive at a minimum time for a particle state to evolve into another particle state. This is done using both the Mandelstam-Tamm bound and the Ma...

In this study, a simple one-step approach has been proposed to treat a spent electroless nickel plating bath by precipitating nickel metal as nickel hydroxide. Beta phase nickel hydroxide β-Ni(OH)2 generated after the treatment of an electroless nickel plating bath was characterized by material characterization techniques including X-ray diffractio...

In this article, we have investigated the consequences of the next to the leading order correction to the effective field theory of nanostructures. This has been done by analyzing the effects of deformed Heisenberg algebra on nanowires and nanotubes. We first deform the Schrodinger equation with cylindrical topology. Then specific solutions to the...

Copper oxides nanosheets and nanowires were directly grown on a copper sheet by a single step voltammetry process in an alkaline solution. The transition from the out-of-plane nanosheets to high aspect ratio nanowires is triggered by the change in the voltage sweep rate. The scan rate changes the growth mechanism from nucleation and coarsening at t...

In this communication, we report carbon nano-onions (CNOs) derived from natural oil as metal-free sensors for efficient nitrite determination. The pristine CNOs showed remarkable nitrite oxidation capability with a linear detection range of 1 μM–90 μM (R² = 0.998), the sensitivity of 214.29 μA mM⁻¹ cm⁻² and detection limit as low as 0.75 μM. The pe...

Growing environmental and economical concern necessitates novel materials with inherent electrochemical activity in as-prepared. Herein, we report, the electrochemical reactivity of the nitrogen-doped carbon nano-onions (N-CNO) prepared by a simple flame pyrolysis method. The as-obtained N-CNO has high N-content (4 at.%) and a large Brunauer-Emmett...

The demand for high energy density on-chip micro-supercapacitor is one of the major challenges for its application in a wireless sensor network, healthcare monitoring, and environmental sensing. The development of miniaturized energy storage unit is essential for the growth of autonomous sensor nodes. Currently, most of the portable and microelectr...

The faster growth of the microelectronics industry and consumer’s demand for tiny, portable electronic devices increases the necessity of micro-scale energy storage units. Micro-supercapacitors have potential to support tiny micro-electronic devices by replacing or complimenting batteries and electrolytic capacitors. Nanoporous gold (NPG)–Nitrogen...

The present study was focused on the development of environmentally friendly graphene-based anti-corrosive coatings and understanding the effect of these coatings on the electrochemical corrosion behavior of copper. Through effective functionalization of graphene (<=5 layers) with 3-aminopropyltriethoxysilane (APTES), the corrosion current density...

Hexavalent chromium, Cr(VI), is a mutagenic and carcinogenic heavy metal environmental pollutant. Photoreduction is one of the remediation methods of the hexavalent chromium Cr(VI), which necessitates design of an efficient catalyst for visible light performance. Here, we report a one-step solvothermal synthesis of TiO2-reduced graphene oxide (TiO2...