BiographyOur research interest is focused on nanocarbon and non-novel metal-based hybrid materials for state-of-the-art energy storage and conversion system for renewable energy generation. Currently we are looking for self-sustainable energy storage devices starting from waste/biomass materials. We are in progress in developing a hybrid supercapacitor with battery or biofuel cell for clean and self-sustainable energy storage devices, paper-based biofuel cell electrochemical full water splitting and metal-air battery.
Recently we have made an attempt not only to solve the age-old socio-economic issue of agricultural waste recycling but also to generate value-added ‘wonder materials’ graphene from waste peanut shell, which can powers our increasingly electronic world. The supercapacitor with extremely high surface area (2070 m2 g-1) graphene demonstrated 6-8 times higher energy density (58.125 W h Kg-1) and 3-4 times higher power density (37.5 W Kg-1) than a similar morphology achieved from waste materials. This work has been recognizing globally for its unique nature and economic way to produce mass-scale graphene.
In another work, we have got success to solve a current issue of metal-free supercapacitor by laser-irradiated, highly conductive graphene film. In this work we have shown a simple and innovative way for Ultralong cycle life and outstanding capacitive performance of a 10.8 V metal-free microsupercapacitor with highly conducting and robust laser-irradiated graphene for an integrated
Areas of Research / Professional Expertise
Clean and self-sustainable energy
Flexible energy storage device
Hybrid capacitor/nanohybrid capacitor
Electrochemical CO2 reduction
Hybrid Supercapacitor-biofuel cell/solar cell
Enzymatic and non-enzymatic sensing of small molecules
Reading book and playing table tennis
Ultralong cycle life and outstanding capacitive performance of a 10.8 V metal free micro-supercapacitor with highly conducting and robust laser-irradiated graphene for an integrated storage device
Published: Dec 05, 2019 by Energy Environ. Sci.
Authors: Navpreet Kamboj, Taniya Purkait, Manisha Das, Subhajit Sarkar and Ramendra Sundar Dey*
Subjects: Chemistry, Energy & Clean Technology
Interconnected porous graphene plays a crucial role as supercapacitive material as well as a current collector in developing metal-free microsupercapacitor (MSC) because of its unique structure and superior conductivity. The LIG film on a flexible substrate was patterned with the aim to develop an on-chip flexible MSC, which offers a large working voltage of 1.2 V in an aqueous solid electrolyte.