Innovative Research and Promotion of Ethical Values in Science

Dr. R. K. Kotnala

Awarded with Prestigious Raja Ramanna Fellow (DAE) 2018  

Head (Former) -Environmental Sciences & Biomedical Metrology Division

CSIR-National Physical Laboratory

A Boon for Masses: Green Energy Source


               Dr. R.K. Kotnala & Dr. Jyoti Shah from CSIR-NPL have invented an energy source, coined as “Hydroelectric Cell”, which produces electricity from water droplets using no acid/alkali. This invention is exceptional.
               Energy from splitting of water has opened a new class of revolutionary research in the field of green energy. Hydroelectric cell can be used in a wide variety of consumer products especially in Rural India.

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     Publication Date (Web): July 24, 2018 (C: Energy Conversion and Storage; Energy and Charge       Transport)
     DOI: 10.1021/acs.jpcc.8b04999


  • Editorial, Invention of Hydroelectric Cell: A Green Energy Groundbreaking Revolution in Journal of Physics Research and Applications, Issue 1, Vol. 2, 2018.
  • Environment Friendly Mesoporous Magnetite Nano particles Based Hydroelectric Cell paper in Journal of Physical Chemistry C: .Feb 2018, 122 (11). doi:10.1021/acs.jpcc.7b12561.








A Facile Non-Photocatalytic Technique for Hydrogen Gas Production by Hydroelectric Cell, International J. of Hydrogen Energy Vo. 42, Issue 52, Nov. 2017



                  The environment is an important issue which needs extensive scientific investigations to understand causal mechanisms which change the state of environment and its consequences on health, livelihood, economy and climate. CSIR-NPL is among the pioneering institutions in India where research in this field has started several decades ago. Various research activities carried out in the division which includes:

  • Environmental Science and Metrology of Lower and Upper Atmosphere

  • Providing Calibration of Ozone Analyzers using Primary Ozone Reference Standard
  • Preparation of Primary Gas Standards for Air Quality Measurements

  • Certified Reference Materials Developments for Pollutants Listed in National Ambient Air Quality Standards (NAAQS)

  • Solar Radiation Flux Measurements

  • Measurement and Creating Inventory of Greenhouse Gases from Different Sources Like Paddy Fields, Biomass Burning and Others

  • Measurement of Trace Atmospheric Gases, Particulate Matter Related Air Pollution Problem

  • Chemical, Physical and Radiative Properties of Atmospheric Aerosols

  • Studies of Physical and Chemical Processes of Atmosphere

  • Metrology in Chemistry to Determine Different Elements and Compounds in Air and Water

  • Biomedical Equipment Standards Development and Certification

  • Spintronic Materials and Magnetic Standards for Industrial Metrology

  • Development of Recently Invented Green Energy Device – Hydroelectric Cell