Biomimetic electron transport via multiredox shuttles from photosystem II to a photoelectrochemical cell for solar water splitting

2017 ◽  
Vol 10 (3) ◽  
pp. 765-771 ◽  
Author(s):  
Zhen Li ◽  
Wangyin Wang ◽  
Chunmei Ding ◽  
Zhiliang Wang ◽  
Shichao Liao ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Electron Transport ◽  
Photosystem Ii ◽  
Water Splitting ◽  
Photoelectrochemical Cell ◽  
Electron Transfer Pathway ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Overall Water Splitting ◽  
Redox Shuttles

A CdS–PSII hybrid PEC cell for overall water splitting contains a biomimetic electron transfer pathway comprising two redox shuttles.

scholarly journals Integrated Membrane-Electrode-Assembly Photoelectrochemical Cell under Various Feed Conditions for Solar Water Splitting

2018 ◽  
Vol 166 (5) ◽  
pp. H3020-H3028 ◽  
Author(s):  
Tobias A. Kistler ◽  
David Larson ◽  
Karl Walczak ◽  
Peter Agbo ◽  
Ian D. Sharp ◽  
...  
Keyword(s):  
Water Splitting ◽  
Membrane Electrode Assembly ◽  
Photoelectrochemical Cell ◽  
Membrane Electrode ◽  
Solar Water ◽  
Solar Water Splitting

Fully solution-processable Cu2O–BiVO4 photoelectrochemical cells for bias-free solar water splitting

2018 ◽  
Vol 20 (16) ◽  
pp. 3732-3742 ◽  
Author(s):  
Hyunwoo Kim ◽  
Sanghyun Bae ◽  
Dasom Jeon ◽  
Jungki Ryu
Keyword(s):  
Water Splitting ◽  
Photoelectrochemical Cell ◽  
Simple Solution ◽  
Photoelectrochemical Cells ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Solution Processes ◽  
Solution Processable

An efficient and stable bias-free photoelectrochemical cell was readily fabricated using only simple solution processes.

scholarly journals Solar water-splitting into H2 and O2: design principles of photosystem II and hydrogenases

2008 ◽  
Vol 1 (1) ◽  
pp. 15 ◽  
Author(s):  
Wolfgang Lubitz ◽  
Edward J. Reijerse ◽  
Johannes Messinger
Keyword(s):  
Photosystem Ii ◽  
Water Splitting ◽  
Design Principles ◽  
Solar Water ◽  
Solar Water Splitting

scholarly journals Assessment of a W:BiVO4–CuBi2O4Tandem Photoelectrochemical Cell for Overall Solar Water Splitting

2020 ◽  
Vol 12 (12) ◽  
pp. 13959-13970 ◽  
Author(s):  
Angang Song ◽  
Peter Bogdanoff ◽  
Alexander Esau ◽  
Ibbi Y. Ahmet ◽  
Igal Levine ◽  
...  
Keyword(s):  
Water Splitting ◽  
Photoelectrochemical Cell ◽  
Solar Water ◽  
Solar Water Splitting

scholarly journals Protagonists and spectators during photocatalytic solar water splitting with SrTaOxNy oxynitride

2021 ◽  
Author(s):  
Craig Lawley ◽  
Zahra Pourmand Tehrani ◽  
Adam Hugh Clark ◽  
Olga V. Safonova ◽  
Max Döbeli ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Grazing Incidence ◽  
Operating Conditions ◽  
Photoelectrochemical Cell ◽  
Light Water ◽  
X Ray ◽  
Solar Water ◽  
Solar Water Splitting

Oxynitrides have been shown to be promising visible light water splitting photocatalysts, but rapidly degrade under operating conditions. With a custom designed photoelectrochemical cell, we perform operando grazing incidence X-ray...

(Invited) Understanding Redox Shuttle Photocatalysis in Z-Scheme Solar Water Splitting Reactors

2018 ◽  
Vol MA2018-01 (31) ◽  
pp. 1890-1890
Author(s):  
Samuel Keene ◽  
William Gaieck ◽  
Anni Zhang ◽  
Houman Yaghoubi ◽  
Jingyuan Liu ◽  
...  
Keyword(s):  
Water Splitting ◽  
Environmental Science ◽  
Transport Processes ◽  
Department Of Energy ◽  
Particle Suspension ◽  
List Type ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Redox Shuttles ◽  
Redox Shuttle

Particle suspension reactors for solar water splitting are capable of generating hydrogen at a cost that is competitive with hydrogen produced from steam methane reforming.1-3 Our team has validated a reactor design that resembles Nature’s Z-scheme where two stacked and connected photocatalyst particle suspension reactor beds together drive overall solar water splitting.3 Electron (and proton) management between the beds occurs by transport of a redox shuttle through a nanoporous separator. Efficient designs require that the redox shuttle is selectively oxidized and reduced at the particles that drive H2 evolution and O2 evolution, respectively. By device physics numerical simulations we showed that even for highly efficient reactor designs (10% STH efficiency) redox shuttle transport between the beds can be sustained with only passive diffusion.3 In my presentation I will report on our team’s recent progress on this design. Using finite-element numerical analyses we modelled and simulated the transient mass transport processes, light absorption, electrochemical kinetics, gas crossover, and thermal transport in the proposed reactor. Experimentally, we synthesized, characterized, and evaluated the photo(electro)chemical performance of the most promising photocatalyst nanocrystallites (BiVO4, WO3, and Rh-doped SrTiO3) as mesoporous thin films and as particles in model reactors, and in the presence of several different redox shuttles and at various pH values. For H2-evolving Rh-doped SrTiO3, we demonstrated that in the presence of Fe(II) the limiting rate of Fe(III) reduction decreases and the rate of H2 evolution increases; however, these desired processes occurred along with undesired Fe(III) reduction and undesired H2 oxidation. Introduction of Ru cocatalysts enhanced performance by increasing the rate of H2 evolution and to a lesser extent undesired Fe(III) reduction. For O2-evolving WO3, we showed that O2 does not interfere with collection of electrons and that selectivity toward Fe(III) reduction is possible at moderate concentrations of Fe(III). Overall, results from several studies using a series of redox shuttles and photocatalyst particles will be presented. Collectively, our efforts represent strides toward achieving a high-level of techno-economic viability in solar water splitting reactors. Acknowledgments: This work was supported by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Fuel Cell Technologies Incubator Program under Award No. DE-EE0006963 and Lawrence Berkeley National Laboratory under Contract No. DE-AC02-05CH11231. References: D. James, G. N. Baum, J. Perez and K. N. Baum, Technoeconomic Analysis of Photoelectrochemical (PEC) Hydrogen Production, Directed Technologies Inc., (US DOE Contract no. GS-10F-009J), Arlington, VA, 2009. A. Pinaud, J. D. Benck, L. C. Seitz, A. J. Forman, Z. Chen, T. G. Deutsch, B. D. James, K. N. Baum, G. N. Baum, S. Ardo, H. Wang, E. Miller, and T. F. Jaramillo, Energy & Environmental Science, 2013, 6, 1983–2002. Bala Chandran, S. Breen, Y. Shao, S. Ardo, and A. Z. Weber, Energy & Environmental Science, 2017, Accepted Manuscript, DOI: 10.1039/C7EE01360D.

A quadruple-band metal–nitride nanowire artificial photosynthesis system for high efficiency photocatalytic overall solar water splitting

2019 ◽  
Vol 6 (7) ◽  
pp. 1454-1462 ◽  
Author(s):  
Yongjie Wang ◽  
Yuanpeng Wu ◽  
Kai Sun ◽  
Zetian Mi
Keyword(s):  
Water Splitting ◽  
Artificial Photosynthesis ◽  
High Efficiency ◽  
Metal Nitride ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Overall Water Splitting

First demonstration of a quadruple-band InGaN nanowire photocatalyst for overall water splitting with an STH efficiency >5%.

Unassisted solar water splitting using a Cu2O/Ni(OH)2-ZnO/Au tandem photoelectrochemical cell

2019 ◽  
Vol 24 (2) ◽  
pp. 321-328 ◽  
Author(s):  
Zhiming Bai ◽  
Jia Liu ◽  
Yinghua Zhang ◽  
Zhian Huang ◽  
Yukun Gao ◽  
...  
Keyword(s):  
Water Splitting ◽  
Photoelectrochemical Cell ◽  
Solar Water ◽  
Solar Water Splitting
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