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Title: Solar carbon fuel via photoelectrochemistry
Authors: Kalamaras, Evangelos
Maroto-Valer, M. Mercedes
Shao, Minhua
Xuan, Jin
Wang, Huizhi
Keywords: Solar fuels
Photoelectrochemical CO2 conversion
Artificial photosynthesis
Energy storage
Issue Date: 2018
Publisher: Elsevier © The Authors
Citation: KALAMARAS, E. ... et al, 2018. Solar carbon fuel via photoelectrochemistry. Catalysis Today, doi:10.1016/j.cattod.2018.02.045.
Abstract: A promising strategy to mitigate both energy shortage and global warming is the conversion of CO 2 into chemicals that can be used as fuels (chemical fuels) by utilizing renewable energy sources. Up to date, solar-driven CO 2 reduction has been achieved with photochemical (PC) and photoelectrochemical (PEC) systems or electrochemical cells combined with a photovoltaic system (PV-EC). This study is intended to compare and highlight the state-of-the-art PEC systems for CO 2 reduction and show the limitation factors that still hinder their widespread utilization. The review starts with a description of semiconducting photocatalyst properties and fundamental understanding of PEC CO 2 reduction process. Then, the most significant performance metrics used for evaluation of PEC systems are explained in details. In addition, recent progress in PEC CO 2 reduction systems is summarized and classified in different categories according to the chemical product. Different strategies such as doping, combination of two or more semiconductors, synthesis of nanostructured materials, passivation layers and co-catalysts that enhance light absorption, chemical stability, charge transfer and reduce ohmic losses and overpotentials of photoactive materials are reviewed. Besides the improvement of photocatalysts, research progress on the front of PEC reactor design, combined with the development of advanced modelling tools and characterization techniques are expected to bring PEC CO 2 reduction a step closer to commercialization.
Description: This is an Open Access Article. It is published by Elsevier under the Creative Commons Attribution 4.0 International Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/
Sponsor: The authors would like to acknowledge The Engineering and Physical Sciences Research Council (EPSRC) for financial support through the projects EP/K021796/1,EP/N009924/1, and EP/R012164/1. JX and MS would like to acknowledge the support from Royal Society Kan Tong Po International Fellowship (KTPR1170014).
Version: Published
DOI: 10.1016/j.cattod.2018.02.045
URI: https://dspace.lboro.ac.uk/2134/33650
Publisher Link: https://doi.org/10.1016/j.cattod.2018.02.045
ISSN: 0920-5861
Appears in Collections:Published Articles (Chemical Engineering)

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