Publications by authors named "Aniket Raut"
Utilizing Binary Phase Segregation and Extrusion to Enhance the Electronic Properties of Graphene Nanocomposites.
ACS Appl Mater Interfaces
November 2024
Our goal in this study is to incorporate graphene nanoplatelets (GNPs) in a polymer blend of poly(lactic acid) (PLA) and isotactic polypropylene (iPP) to facilitate the dispersion of GNPs and use the morphology of phase segregation to create a pathway for concentrating GNPs to achieve percolation with lower GNP concentration. Investigating the interfacial properties between PLA/GNPs and iPP/GNPs, we noticed that iPP has a lower contact angle on GNPs compared to PLA on GNPs. This showed a great potential that the GNP are easily confined in iPP rather than in PLA domains or at the PLA/PP interfaces.
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- Formamidinium lead iodide (FAPI) is considered for hybrid perovskite solar cells due to its stability and narrow bandgap, but achieving the stable "black phase" for better performance is challenging due to bulky FA cations favoring the "yellow phase".
- Researchers used a templated growth strategy with thiol-functionalized MoS nanosheets to effectively encourage the formation of high-quality α-FAPI films, leading to improved charge transport and light absorption.
- The improved α-FAPI films significantly boosted power conversion efficiency from 20.6% to 22.5%, while also demonstrating excellent stability, retaining 91% efficiency after 1600 hours without encapsulation.
Migration and Precipitation of Platinum in Anion-Exchange Membrane Fuel Cells.
Angew Chem Int Ed Engl
September 2023
Article Synopsis
- Anion-exchange membrane fuel cells (AEMFCs) have made progress in power generation but still lag behind proton exchange membrane fuel cells (PEMFCs) in durability.
- Research using X-ray micro-CT, SEM, and EDX techniques identified that platinum (Pt) ion migration contributes significantly to AEMFC performance decay, as Pt ions dissolve or move to the membrane in alkaline conditions.
- Switching from a Pt/C cathode to a FeCo-N-C catalyst reduces metal ion diffusion into the membrane, with Fe and Co ions migrating to the anode instead, enhancing membrane stability.
Carboxycellulose nanofibers (CNFs) promise to be a sustainable and inexpensive alternative material for polymer electrolyte membranes compared to the expensive commercial Nafion membrane. However, its practical applications have been limited by its relatively low performance and reduced mechanical properties under typical operating conditions. In this study, carboxycellulose nanofibers were derived from wood pulp by TEMPO oxidation of the hydroxyl group present on the C6 position of the cellulose chain.
View Article and Find Full Text PDFRemotely sensed imagery is used as a tool to aid decision makers and scientists in a variety of fields. A recent world event in which satellite imagery was extensively relied on by a variety of stakeholders was the COVID-19 pandemic. In this article we aim to give an overview of the types of information offered through remote sensing (RS) to help address different issues related to the pandemic.
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