Simple preparation of highly active water splitting FTO/BiVO4 photoanode modified with tri-layer water oxidation catalysts

EMI triflate assisted in producing a highly mechanically stable FTO/BiVO4 photoanode modified with tri-layer WOCs for efficient solar-driven water oxidation.

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Nanostructured Manganese Oxides as Highly Active Water Oxidation Catalysts: A Boost from Manganese Precursor Chemistry

ChemSusChem ◽

10.1002/cssc.201402169 ◽

2014 ◽

Vol 7 (8) ◽

pp. 2202-2211 ◽

Cited By ~ 83

Author(s):

Prashanth W. Menezes ◽

Arindam Indra ◽

Patrick Littlewood ◽

Michael Schwarze ◽

Caren Göbel ◽

...

Keyword(s):

Water Oxidation ◽

Manganese Oxides ◽

Precursor Chemistry ◽

Oxidation Catalysts ◽

Highly Active ◽

Manganese Precursor

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“Hybrid Tandem Device Based on Thin-Film Silicon Photovoltaics and Nanostructured Water Oxidation Catalysts for Solar Water Splitting”

10.29363/nanoge.nfm.2019.216 ◽

2019 ◽

Author(s):

Drialys Cardenas-Morcoso ◽

Tsvetelina Merdzhanova ◽

Vladimir Smirnov ◽

Friedhelm Finger ◽

Bernhard Kaiser ◽

...

Keyword(s):

Thin Film ◽

Water Splitting ◽

Water Oxidation ◽

Oxidation Catalysts ◽

Solar Water ◽

Solar Water Splitting ◽

Thin Film Silicon ◽

Silicon Photovoltaics

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Dye functionalized carbon nanotubes for photoelectrochemical water splitting – role of inner tubes

Journal of Materials Chemistry A ◽

10.1039/c6ta00143b ◽

2016 ◽

Vol 4 (7) ◽

pp. 2473-2483 ◽

Cited By ~ 16

Author(s):

Yi Cheng ◽

Amir Memar ◽

Martin Saunders ◽

Jian Pan ◽

Chang Liu ◽

...

Keyword(s):

Carbon Nanotubes ◽

Water Splitting ◽

Water Oxidation ◽

Photoelectrochemical Water Splitting ◽

Oxidation Catalysts ◽

Functionalized Carbon Nanotubes ◽

Walled Carbon Nanotubes

Dye functionalized double- and triple-walled carbon nanotubes are effective photoanodes for water splitting without the attachment of semiconductor and water oxidation catalysts.

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Fast and Simple Preparation of Iron-Based Thin Films as Highly Efficient Water-Oxidation Catalysts in Neutral Aqueous Solution

Angewandte Chemie ◽

10.1002/ange.201412389 ◽

2015 ◽

Vol 127 (16) ◽

pp. 4952-4957 ◽

Cited By ~ 44

Author(s):

Yizhen Wu ◽

Mingxing Chen ◽

Yongzhen Han ◽

Hongxia Luo ◽

Xiaojun Su ◽

...

Keyword(s):

Thin Films ◽

Aqueous Solution ◽

Water Oxidation ◽

Oxidation Catalysts ◽

Highly Efficient ◽

Simple Preparation ◽

Neutral Aqueous Solution ◽

Iron Based

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Enhanced oxygen evolution on visible light responsive TaON photocatalysts co-loaded with highly active Ru species for IO3− reduction and Co species for water oxidation

Sustainable Energy & Fuels ◽

10.1039/c7se00110j ◽

2017 ◽

Vol 1 (4) ◽

pp. 748-754 ◽

Cited By ~ 10

Author(s):

Yukari Iwase ◽

Osamu Tomita ◽

Masanobu Higashi ◽

Ryu Abe

Keyword(s):

Visible Light ◽

Water Splitting ◽

Oxygen Evolution ◽

Water Oxidation ◽

Redox Couple ◽

Highly Active ◽

One Step ◽

Type Water ◽

Ru Species

Loading an appropriate cocatalyst significantly enhances the activity of semiconductor photocatalysts in both conventional one-step water splitting and Z-scheme-type water splitting with a redox couple.

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On the Stability of Water Oxidation Catalysts: Challenges and Prospects

Australian Journal of Chemistry ◽

10.1071/ch12024 ◽

2012 ◽

Vol 65 (6) ◽

pp. 638 ◽

Cited By ~ 24

Author(s):

Alex Izgorodin ◽

Orawan Winther-Jensen ◽

Douglas R. MacFarlane

Keyword(s):

Water Splitting ◽

Water Oxidation ◽

Commercial Application ◽

Significant Progress ◽

Oxidation Catalysts ◽

Research Focus ◽

Catalytic Activities ◽

The Stability ◽

Stability Of Water

Future requirements for water splitting technologies need highly efficient water oxidation catalysts that are sufficiently stable for operation over many years. Recent research has achieved significant progress in improving the electro-catalytic activities of these catalysts. However, there has not been a strong research focus on their long-term mechanical and chemical stability, yet this is critical for commercial application. In this paper we discuss some of the chemical and thermodynamic challenges confronting this goal, as well as some of the strategies that are available to overcome them. The challenge becomes even greater in the area of photo-active electromaterials; fortunately some of the same strategies may allow progress in this area also.

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Fast and Simple Preparation of Iron-Based Thin Films as Highly Efficient Water-Oxidation Catalysts in Neutral Aqueous Solution

Angewandte Chemie International Edition ◽

10.1002/anie.201412389 ◽

2015 ◽

Vol 54 (16) ◽

pp. 4870-4875 ◽

Cited By ~ 208

Author(s):

Yizhen Wu ◽

Mingxing Chen ◽

Yongzhen Han ◽

Hongxia Luo ◽

Xiaojun Su ◽

...

Keyword(s):

Thin Films ◽

Aqueous Solution ◽

Water Oxidation ◽

Oxidation Catalysts ◽

Highly Efficient ◽

Simple Preparation ◽

Neutral Aqueous Solution ◽

Iron Based

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Dye-sensitized photoelectrochemical water oxidation through a buried junction

Proceedings of the National Academy of Sciences ◽

10.1073/pnas.1804728115 ◽

2018 ◽

Vol 115 (27) ◽

pp. 6946-6951 ◽

Cited By ~ 15

Author(s):

Pengtao Xu ◽

Tian Huang ◽

Jianbin Huang ◽

Yun Yan ◽

Thomas E. Mallouk

Keyword(s):

Solar Cell ◽

Water Splitting ◽

Water Oxidation ◽

Molecular Water ◽

Phosphate Solution ◽

Oxidation Catalysts ◽

Faradaic Efficiency ◽

Dye Sensitized ◽

Electrode Potentials ◽

Oxide Electrodes

Water oxidation has long been a challenge in artificial photosynthetic devices that convert solar energy into fuels. Water-splitting dye-sensitized photoelectrochemical cells (WS-DSPECs) provide a modular approach for integrating light-harvesting molecules with water-oxidation catalysts on metal-oxide electrodes. Despite recent progress in improving the efficiency of these devices by introducing good molecular water-oxidation catalysts, WS-DSPECs have poor stability, owing to the oxidation of molecular components at very positive electrode potentials. Here we demonstrate that a solid-state dye-sensitized solar cell (ss-DSSC) can be used as a buried junction for stable photoelectrochemical water splitting. A thin protecting layer of TiO2 grown by atomic layer deposition (ALD) stabilizes the operation of the photoanode in aqueous solution, although as a solar cell there is a performance loss due to increased series resistance after the coating. With an electrodeposited iridium oxide layer, a photocurrent density of 1.43 mA cm−2 was observed in 0.1 M pH 6.7 phosphate solution at 1.23 V versus reversible hydrogen electrode, with good stability over 1 h. We measured an incident photon-to-current efficiency of 22% at 540 nm and a Faradaic efficiency of 43% for oxygen evolution. While the potential profile of the catalyst layer suggested otherwise, we confirmed the formation of a buried junction in the as-prepared photoelectrode. The buried junction design of ss-DSSs adds to our understanding of semiconductor–electrocatalyst junction behaviors in the presence of a poor semiconducting material.

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