Unassisted Photoelectrochemical Cell with Multimediator Modulation for Solar Water Splitting Exceeding 4% Solar-to-Hydrogen Efficiency

2021 ◽  
Author(s):  
Sheng Ye ◽  
Wenwen Shi ◽  
Yong Liu ◽  
Dongfeng Li ◽  
Hang Yin ◽  
...  
Keyword(s):  
Water Splitting ◽  
Photoelectrochemical Cell ◽  
Solar Water ◽  
Solar Water Splitting

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 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...

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

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

2021 ◽  
Author(s):  
Craig Lawley ◽  
Zahra Pourmand Tehrani ◽  
Adam Clark ◽  
Olga Safonova ◽  
Max Doebeli ◽  
...  
Keyword(s):  
Water Splitting ◽  
Rational Design ◽  
Grazing Incidence ◽  
Operating Conditions ◽  
Photoelectrochemical Cell ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Species Formation ◽  
Invaluable Tool ◽  
A Site

Abstract 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 absorption spectroscopy measurements on the oxynitride semiconductor SrTaOxNy during photocatalytic solar water splitting. We show that the nature of the A-site (Sr) and its evolution during operation, have large impacts on the overall stability and catalytic acitivity of the material, leading to an enriched BO2 (Ta(OH)/TaO(OH)) like surface. However, this usually beneficial effect with respect to increased surface hydrophilicity has complications for the efficiency of the photocatalytic process, as the OH and O(OH) intermediates formed are in competition between O2 generation and NOx species formation in the initial stages of operation. Operando characterisation of the evolution of the electronic structure of the photocatalyst proves to be an invaluable tool for the rational design and discovery of new and better performing materials.

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