Photoelectrocatalytic Production of Solar Fuels from Water and CO2

Hyunwoong Park*
School of Energy Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
Nano-Micro Conference, 2017, 1, 01042
Published Online: 26 October 2017 (Abstract)
DOI:10.11605/cp.nmc2017.01042
Corresponding Author. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

How to Cite

Citation Information: Hyunwoong Park, Photoelectrocatalytic Production of Solar Fuels from Water and CO2. Nano-Micro Conference, 2017, 1, 01042 doi: 10.11605/cp.nmc2017.01042

History

Received: 26 May 2017, Accepted: 16 June 2017, Published Online: 26 October 2017

Abstract

There is renewed interest in the photocatalytic and photoelectrochemical conversion of COinto value-added chemicals using various semiconductor particles and electrodes. Common CO2 reduction products are C1 chemicals (CO, HCOOH, CH3OH, and CH4) in aqueous media, while the production of C2-C4 hydrocarbons (e.g., C2H6 and C3H8) has also been reported. A number of solar-active materials have been reported, but they still suffer from low selectivity, poor energy efficiency, and instability, while failing to drive simultaneous water oxidation. In this regard, p-type CuMO2 (where M = Al3+ and Fe3+) is highly promising because of its unique structure; suitable bandgap energies; high conduction band level, which is sufficient for Hproduction and CO2 reduction; and relative stability in aqueous solution. Unfortunately, the typical synthetic route for CuMO2 is annealing a Cu(I) and M(III) salt mixture at high temperature, which inevitably results in irregular, coarse particles of several micrometers. Furthermore, the as-synthesized particles are difficult to fabricate into durable films on transparent conducting oxide (TCO) substrates because of the absence of particle-to-particle interaction. Even if they are fabricated, the films have less intimate and looser interparticle connections undergoing a significant charge recombination at the solid/solid interface. This difficulty in synthesizing CuMO2 films has caused this material to be less studied despite its potential as a promising photocathode. With this in mind, we have attempted to synthesize high-efficiency CuMO2 films on TCO substrates via electrochemical deposition. This talk presents our recent studies on the solar CO2 conversion to value-added chemicals while using water as an electron donor in various photo-systems [1-11].

References

[1] Sung Kyu Choi; Unseock Kang; Seunghoon Lee; Dong Jin Ham; Sang Min Ji; Hyunwoong Park, Sn-Coupled p-Si Nanowire Arrays for Solar Formate Production from CO2. Advanced Energy Materials. 4, 1301614 (2014). doi:10.1002/aenm.201301614
[2] Hyunwoong Park; Hsin-Hung Ou; Agustín J. Colussi; Michael R. Hoffmann, Artificial Photosynthesis of C1–C3 Hydrocarbons from Water and CO2 on Titanate Nanotubes Decorated with Nanoparticle Elemental Copper and CdS Quantum Dots. Journal of Physical Chemistry A. 119, 4658-4666 (2015). doi:10.1021/jp511329d
[3] Unseock Kang; Sung Kyu Choi; Dong Jin Ham; Sang Min Ji; Wonyong Choi; Dong Suk Han; Ahmed Abdel-Wahabe; Hyunwoong Park, Photosynthesis of formate from CO2 and water at 1% energy efficiency via copper iron oxide catalysis. Energy & Environmental Science. 8, 2638-2643 (2015). doi:10.1039/C5EE01410G
[4] Hyunwoong Park; Hsin-Hung Ou; Unseock Kang; Jina Choi; Michael R. Hoffmann, Photocatalytic conversion of carbon dioxide to methane on TiO2/CdS in aqueous isopropanol solution. Catalysis Today. 266, 153-159 (2016). doi:10.1016/j.cattod.2015.09.017
[5] Narayan Chandra Deb Nath; Seung Yo Choi; Hye Won Jeong; Jae-Joon Lee; Hyunwoong Park, Stand-alone photoconversion of carbon dioxide on copper oxide wire arrays powered by tungsten trioxide/dye-sensitized solar cell dual absorbers. Nano Energy. 25, 51-59 (2016). doi:10.1016/j.nanoen.2016.04.025
[6] Hye Won Jeong; Weon-Sik Chae; Bokyung Song; Chang-Hee Cho; Seong-Ho Baek; Yiseul Park; Hyunwoong Park, Optical resonance and charge transfer behavior of patterned WO3 microdisc arrays. Energy & Environmental Science. 9, 3143-3150 (2016). doi:10.1039/C6EE01003B
[7] Sung Kyu Choi; Weon-Sik Chae; Bokyung Song; Chang-Hee Cho; Jina Choi; Dong Suk Han; Wonyong Choi; Hyunwoong Park, Photoelectrochemical hydrogen production on silicon microwire arrays overlaid with ultrathin titanium nitride. Journal of Materials Chemistry A. 4, 14008-14016 (2016). doi:10.1039/C6TA05200B
[8] Tae Hwa Jeon; Alok D. Bokare; Dong Suk Han; Ahmed Abdel-Wahab; Hyunwoong Park; Wonyong Choi, Dual modification of hematite photoanode by Sn-doping and Nb2O5 layer for water oxidation. Applied Catalysis B: Environmental. 201, 591-599 (2017). doi:10.1016/j.apcatb.2016.08.059
[9] Unseock Kang; Hyunwoong Park, A facile synthesis of CuFeO2 and CuO composite photocatalyst films for the production of liquid formate from CO2 and water over a month. Journal of Materials Chemistry A. 5, 2123 (2017). doi:10.1039/C6TA09378G
[10] Seunghoon Lee; Unseock Kang; Guangxia Piao; Soonhyun Kim; Dong Suk Han; Hyunwoong Park, Homogeneous photoconversion of seawater uranium using copper and iron mixed-oxide semiconductor electrodes. Applied Catalysis B: Environmental. 207, 35-41 (2017). doi:10.1016/j.apcatb.2017.02.004
[11] Hyunwoong Park; Hyoung-il Kim; Gun-hee Moon; Wonyong Choi, Photoinduced charge transfer processes in solar photocatalysis based on modified TiO2. Energy & Environmental Science. 9, 411-433 (2016). doi:10.1039/C5EE02575C

Open Access

This article is licensed under a Creative Commons Attribution 4.0 International License. (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
© The Author(s) 2017

[1] Sung Kyu Choi; Unseock Kang; Seunghoon Lee; Dong Jin Ham; Sang Min Ji; Hyunwoong Park, Sn-Coupled p-Si Nanowire Arrays for Solar Formate Production from CO2. Advanced Energy Materials. 4, 1301614 (2014). doi:10.1002/aenm.201301614
[2] Hyunwoong Park; Hsin-Hung Ou; Agustín J. Colussi; Michael R. Hoffmann, Artificial Photosynthesis of C1–C3 Hydrocarbons from Water and CO2 on Titanate Nanotubes Decorated with Nanoparticle Elemental Copper and CdS Quantum Dots. Journal of Physical Chemistry A. 119, 4658-4666 (2015). doi:10.1021/jp511329d
[3] Unseock Kang; Sung Kyu Choi; Dong Jin Ham; Sang Min Ji; Wonyong Choi; Dong Suk Han; Ahmed Abdel-Wahabe; Hyunwoong Park, Photosynthesis of formate from CO2 and water at 1% energy efficiency via copper iron oxide catalysis. Energy & Environmental Science. 8, 2638-2643 (2015). doi:10.1039/C5EE01410G
[4] Hyunwoong Park; Hsin-Hung Ou; Unseock Kang; Jina Choi; Michael R. Hoffmann, Photocatalytic conversion of carbon dioxide to methane on TiO2/CdS in aqueous isopropanol solution. Catalysis Today. 266, 153-159 (2016). doi:10.1016/j.cattod.2015.09.017
[5] Narayan Chandra Deb Nath; Seung Yo Choi; Hye Won Jeong; Jae-Joon Lee; Hyunwoong Park, Stand-alone photoconversion of carbon dioxide on copper oxide wire arrays powered by tungsten trioxide/dye-sensitized solar cell dual absorbers. Nano Energy. 25, 51-59 (2016). doi:10.1016/j.nanoen.2016.04.025
[6] Hye Won Jeong; Weon-Sik Chae; Bokyung Song; Chang-Hee Cho; Seong-Ho Baek; Yiseul Park; Hyunwoong Park, Optical resonance and charge transfer behavior of patterned WO3 microdisc arrays. Energy & Environmental Science. 9, 3143-3150 (2016). doi:10.1039/C6EE01003B
[7] Sung Kyu Choi; Weon-Sik Chae; Bokyung Song; Chang-Hee Cho; Jina Choi; Dong Suk Han; Wonyong Choi; Hyunwoong Park, Photoelectrochemical hydrogen production on silicon microwire arrays overlaid with ultrathin titanium nitride. Journal of Materials Chemistry A. 4, 14008-14016 (2016). doi:10.1039/C6TA05200B
[8] Tae Hwa Jeon; Alok D. Bokare; Dong Suk Han; Ahmed Abdel-Wahab; Hyunwoong Park; Wonyong Choi, Dual modification of hematite photoanode by Sn-doping and Nb2O5 layer for water oxidation. Applied Catalysis B: Environmental. 201, 591-599 (2017). doi:10.1016/j.apcatb.2016.08.059
[9] Unseock Kang; Hyunwoong Park, A facile synthesis of CuFeO2 and CuO composite photocatalyst films for the production of liquid formate from CO2 and water over a month. Journal of Materials Chemistry A. 5, 2123 (2017). doi:10.1039/C6TA09378G
[10] Seunghoon Lee; Unseock Kang; Guangxia Piao; Soonhyun Kim; Dong Suk Han; Hyunwoong Park, Homogeneous photoconversion of seawater uranium using copper and iron mixed-oxide semiconductor electrodes. Applied Catalysis B: Environmental. 207, 35-41 (2017). doi:10.1016/j.apcatb.2017.02.004
[11] Hyunwoong Park; Hyoung-il Kim; Gun-hee Moon; Wonyong Choi, Photoinduced charge transfer processes in solar photocatalysis based on modified TiO2. Energy & Environmental Science. 9, 411-433 (2016). doi:10.1039/C5EE02575C

 

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