Welcome to Polshettiwar's NanoCat Group
Polshettiwar's Nano-catalysis Laboratory is part of Tata Institute of Fundamental Research (TIFR), Mumbai and integrated into the Division of Chemical Sciences (DCS).
Energy and environment are two of our critical societal challenges. Use of solar energy for efficient photocatalytic water splitting to produce hydrogen and dye/perovskite sensitized solar cells to produce electricity are the most promising potential route for the development of alternate energy sources. Whereas photocatalytic decomposition of contaminants such as organic dye is the key for the clean environment.
Climate change due to excessive CO2 levels is the most serious problem mankind has ever faced. This is causing abrupt weather patterns such a flood and drought, and we already witnessed this in recent years. CO2 emissions need to be urgently reduced to avoid potentially dangerous climate change, which may not be reversible. Capture and conversion of CO2 to fuel and fine chemicals is one of the best ways to tackle the challenges of environment and energy together.
One of the stimulating features of nanotechnology is its potential use in almost any field. The discovery of nanoparticles with varied size, shape and composition has stretched the limits of technology in ways that scientists would never have dreamt of a century ago. Nature makes and chemistry re-shapes; huge varieties of nanoparticles have emerged in our daily life, in every field from drugs and electronics to paints and beauty care, and they are now emerging in the field of catalysis.
Nano-Catalysis is becoming a strategic field of science since it represents a new way to meet the challenges of energy and sustainability. These challenges are becoming the main concerns of the global vision of the societal challenges and world economy. Catalysis research became one of the most powerful tools to take on these challenges.
The field of nanocatalysis is undergoing an explosive development. Nanocatalysis can help design catalysts with excellent activity, greater selectivity, and high stability. Their properties can easily be tuned by tailoring the size, shape, and morphology of the particular nanomaterial. In the nano-catalysis (NanoCat) laboratory, we are designing and synthesizing various nano-materials (silica, metal oxides, metals, MOF etc) with specific shapes, sizes and morphologies and then evaluating their use as a nano-catalysts for the development of sustainable protocols for various challenging reactions like photocatalysis, CO2 capture and conversion to fine chemicals, environmental remediation as well as C-H activation, C-C coupling, oxidation, metathesis, hydrogenolysis, hydrogenation reactions. We are also designing nanomaterials for Solar Cells, SERS, Battery and Super-Capacitor applications.
A guiding hypothesis is that catalytic efficiency (activity, kinetics, selectivity and stability) can be controlled by varying the shape and morphology of nanomaterials/nanocatalysts.
Google Scholar- http://scholar.google.co.in/citations?user=mNJfGlQAAAAJ&hl=en
ORCID - http://orcid.org/0000-0003-1375-9668
Scopus Author ID: 16834885300