Publications by authors named "Ranjith Prasannachandran"
Chem Commun (Camb)
August 2020
Article Synopsis
- - The study showcases 0-D/2-D hybrids combining phosphorene quantum dots with few-layered MoS nanosheets as effective electrocatalysts for generating hydrogen and oxygen in alkaline environments.
- - These PQD/MoS hybrids exhibit impressive bifunctional electrocatalytic performance due to their distinct structure that enhances charge transfer.
- - The improved kinetics for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are linked to the unique morphological features of the hybrids.
Article Synopsis
- - Green hydrogen production is essential for developing a hydrogen-based economy, primarily through water electrolysis using renewable energy sources and solar-to-hydrogen conversion.
- - The study explores how functionalizing graphene nanoplatelets (GNPs) can enhance their catalytic properties for the hydrogen evolution reaction (HER), revealing an inverse relationship between catalytic activity and the strength of the electrical double layer.
- - Using density functional theory (DFT) modeling, researchers explain the electrocatalytic activity and suggest that reducing the electrical double layer strength could improve the catalysts' performance in hydrogen production.
Article Synopsis
- Phosphorene, a two-dimensional nanomaterial, shows potential for improving electrocatalytic activity in oxygen evolution reactions (OER) but requires controlled synthesis of few-layered structures for better performance.
- A new method for creating phosphorene quantum dots (PQDs) through a single-step electrochemical exfoliation allows for in situ surface functionalization, enhancing their electrocatalytic activity.
- Functionalized phosphorene quantum dots (FPQDs) demonstrate efficient OER performance with low overpotential and Tafel slope, while exhibiting stronger electron transfer kinetics, making them promising materials for water-splitting devices.
