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Electrochemical Aspects in Practicable Artificial Photosynthesis: The best way to store electricity derived from sunlight at every home and at every thermal power plant

The only option available today for humankind to make energy, environment, economy and life sustainable on Earth is to harvest sunlight to meet all the energy needs of the society without any back-up from fossil fuels by using carbon dioxide and water as energy storing materials. To achieve this goal, apart from developing methods to convert sunlight into electricity, methods for splitting water and to reduce CO2 to CO, etc., with product formation rates and product yields suitable for industrial practice with economic viability also must be developed. As CO2 concentration in atmosphere is only about 400 ppm (~0.04%), it is not possible to produce any of the renewable carbon-neutral energy rich fuel chemicals (i.e., solar fuels) by following direct photochemical or photocatalytic routes with rates and yields suitable for practicing at industry with economic viability as the yields of the products to be formed in these photochemical routes does not exceed 1%. According to Department of Energy (DoE), USA, the efficiency of the any of the methods that harvest sunlight into chemical energy must exceed 10% in order for them to be economically viable while practicing at industry. Today, for example, lithium ion batteries (LIBs) are indispensable for portable electronic devices such as, mobile phones, laptops, etc., but it is a difficult task to store, for example, 500 MW equivalent electricity derived from sunlight to run a city without any back-up from fossil fuels. Nature clearly indicates that any amount energy can be stored by using carbon dioxide and water as energy storing materials while beneficially contributing to the environment. In view of the importance of developing the electrochemical CO2 reduction and water splitting reactions to harvest sunlight in the form of chemical fuels such as, CO at every thermal power plant, and H2, and O2 at every home, respectively, this special topical issue of the Journal of Solid State Electrochemistry will focus on recent experimental and theoretical work devoted to these two electrochemical reactions. The issue is anticipated to cover wide audience in the community related to energy and environment across the globe.

Editors

  • Dr. Ibram Ganesh

    is a scientist at ARCI, Hyderabad, India. He invented a brand-new “Semiconductor and Liquid Assisted Photothermal Effect (SLAPE)” technology for generating electricity from sunlight. He experimentally discovered that bmim-BF4 mediated electrochemical reduction of CO2 to CO is a reverse reaction of CO oxidation in air that doesn’t involve protons in the reduction process. He wrote the book “Practicable Artificial Photosynthesis: The only option available today for humankind to make energy, environment, economy and life sustainable on Earth”, is an author of 98 publications, inventor of 10 patents, and one of the top 2% scientists in the world.

Articles (5 in this collection)