Energy Storage Options and Their Environmental Impact
Photochemical Energy Storage
Published:18 Oct 2018
G. Neri, M. Forster, and A. J. Cowan, in Energy Storage Options and Their Environmental Impact, ed. R. E. Hester and R. M. Harrison, The Royal Society of Chemistry, 2018, pp. 184-209.
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This chapter highlights energy storage strategies that utilise solar energy to drive the formation of chemicals, fuels and feedstocks. The production of solar fuels that can be stored and transported is an attractive way to address the intermittency of terrestrial solar energy and provide sustainable access to the fundamental feedstocks upon which society has come to rely. The solar energy-driven reactions considered here are the splitting of water to produce hydrogen and oxygen, and the coupled oxidation of water and reduction of CO2 to produce a variety of higher value carbon products and oxygen. The chapter aims to provide an introductory overview of both direct (photochemical) and indirect solar (photovoltaic-enabled electrolysis) routes to these fuels.