Esterification of oxidized carbon nanotubes (CNTs) can open a new route for the separation of zigzag and armchair nanotubes. We studied theoretically (by using hybrid DFT within the ONIOM embedding protocol) the reactions of monocarboxy-substituted oxidized tips of zigzag and armchair single-walled CNTs (SWCNTs) with methanol. According to the calculated values of activation energy, Gibbs free-...

Wearable technologies can contribute to the early and accurate detection of chronic diseases which be achieved by integration biosensors into wearable technologies. However, challenges associated with performance current electrode materials—i.e., flexibility, conductivity, mechanical stability, made from conducting polymers are preventing their widespread usage. Herein, we report a freestanding...

The state-of-the-art Bismuth-Telluride (Bi2Te3) based systems are promising thermoelectric materials for efficient applications. In this study, the effect of graphene nanosheets (GNS) integrity on properties a p-type Bi0.4Sb1.6Te3 alloy has been studied using high-energy ball milling and SPS sintering techniques. synthesized pristine 0.05wt% GNS/Bi0.4Sb1.6Te3 nanocomposites at different additio...

In the past decades, lithium-ion batteries (LIBs), due to the high energy densities, have become a dominant power source in portable electronics and have found applications in transportation, such as in hybrid electrical vehicles (HEVs) and electrical vehicles (EVs). Particularly, they have become indispensable energy storage devices for intermittent energy conversions, like in solar cells and ...

Ganglioneuromas (GNs) are hamartomatous tumors derived from the autonomic nervous system. It is rare to encounter GN in the gastrointestinal tract. Patients with these tumors usually present with abdominal pain, constipation, ileus, weight loss, or even bleeding. GNs are categorized into three different morphological subtypes, namely, polypoid GN, ganglioneuromatous polyposis, and diffuse gangl...

This review article provides a new perspective on the ethics of green nudging. We advance model for assessing ethical permissibility nudges (GNs). On this model, which normative guidance policymakers, GN is ethically permissible when intervention (1) efficacious, (2) cost-effective, and (3) advantages (i.e. reducing environmental harm) are not outweighed by countervailing costs/harms nudgees). ...

Using density-functional theory the stability of armchair and zigzag single-walled carbon nanotubes and graphene nanoribbons was investigated. We found that the stability of armchair and zigzag nanotubes has different linear dependence with regard to their length, with switches in the most stable chirality occurring at specific lengths for each nanotube series. We explain these dependencies by ...

First-principles investigations on the edge energies and edge stresses of single-layer hexagonal boron-nitride (BN) are presented. The armchair edges of BN nanoribbons (BNNRs) are more stable in energy than zigzag ones. Armchair BNNRs are under compressive edge stress while zigzag BNNRs are under tensile edge stress. The intrinsic spin-polarization and edge saturation play important roles in mo...