scholarly journals Photoelectrochemical Device Designs toward Practical Solar Water Splitting: A Review on the Recent Progress of BiVO4 and BiFeO3 Photoanodes

2018 ◽  
Vol 8 (8) ◽  
pp. 1388 ◽  
Author(s):  
Sang Jeong ◽  
Jaesun Song ◽  
Sanghan Lee
Keyword(s):  
Water Splitting ◽  
Water Oxidation ◽  
State Of The Art ◽  
Significant Progress ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Future Challenges ◽  
Promising Solution ◽  
Carrier Separation ◽  
Energy Challenge

Solar-driven water splitting technology is considered to be a promising solution for the global energy challenge as it is capable of generating clean chemical fuel from solar energy. Various strategies and catalytic materials have been explored in order to improve the efficiency of the water splitting reaction. Although significant progress has been made, there are many intriguing fundamental phenomena that need to be understood. Herein, we review recent experimental efforts to demonstrate enhancement strategies for efficient solar water splitting, especially for the light absorption, charge carrier separation, and water oxidation kinetics. We also focus on the state of the art of photoelectrochemical (PEC) device designs such as application of facet engineering and the development of a ferroelectric-coupled PEC device. Based on these experimental achievements, future challenges, and directions in solar water splitting technology will be discussed.

Two photon tandem photoanode with black phosphorous quantum dot sensitized BiVO4 for solar water splitting

2022 ◽  
Author(s):  
Bingjun Jin ◽  
Yoonjun Cho ◽  
Cheolwoo Park ◽  
Jeehun Jeong ◽  
Sungsoon Kim ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Water Splitting ◽  
Water Oxidation ◽  
Oxidation Kinetics ◽  
Light Harvesting ◽  
Charge Recombination ◽  
Solar Water ◽  
Two Photon ◽  
Solar Water Splitting ◽  
Pec Water Splitting

The photoelectrochemical (PEC) water splitting efficiency is profoundly restricted by the limited light harvesting, rapid charge recombination, and sluggish water oxidation kinetics, in which the construction of a photoelectrode requires...

scholarly journals Ferroelectric Materials: A Novel Pathway for Efficient Solar Water Splitting

2018 ◽  
Vol 8 (9) ◽  
pp. 1526 ◽  
Author(s):  
Sangmo Kim ◽  
Nguyen Nguyen ◽  
Chung Bark
Keyword(s):  
Solar Energy ◽  
Water Splitting ◽  
Conversion Efficiency ◽  
Water Oxidation ◽  
Complex Structure ◽  
Ferroelectric Materials ◽  
Promising Candidate ◽  
Solar Water ◽  
Solar Water Splitting ◽  
The Past

Over the past few decades, solar water splitting has evolved into one of the most promising techniques for harvesting hydrogen using solar energy. Despite the high potential of this process for hydrogen production, many research groups have encountered significant challenges in the quest to achieve a high solar-to-hydrogen conversion efficiency. Recently, ferroelectric materials have attracted much attention as promising candidate materials for water splitting. These materials are among the best candidates for achieving water oxidation using solar energy. Moreover, their characteristics are changeable by atom substitute doping or the fabrication of a new complex structure. In this review, we describe solar water splitting technology via the solar-to-hydrogen conversion process. We will examine the challenges associated with this technology whereby ferroelectric materials are exploited to achieve a high solar-to-hydrogen conversion efficiency.

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

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

Highly conformal deposition of ultrathin cobalt acetate on a bismuth vanadate nanostructure for solar water splitting

2019 ◽  
Vol 9 (17) ◽  
pp. 4588-4597 ◽  
Author(s):  
Truong-Giang Vo ◽  
Hsin-Man Liu ◽  
Chia-Ying Chiang
Keyword(s):  
Water Splitting ◽  
Water Oxidation ◽  
Cobalt Acetate ◽  
Bismuth Vanadate ◽  
Acetate Buffer ◽  
Solar Water ◽  
Solar Water Splitting

In this work, the effect of photochemically modifying nanoporous bismuth vanadate in Co2+ solution in acetate buffer (abbreviated as Co–Ac) on water oxidation was thoroughly studied.

Ultrathin NiCo2O4 nanosheets with dual-metal active sites for enhanced solar water splitting of a BiVO4 photoanode

2019 ◽  
Vol 7 (39) ◽  
pp. 22274-22278 ◽  
Author(s):  
Chenchen Feng ◽  
Qi Zhou ◽  
Bin Zheng ◽  
Xiang Cheng ◽  
Yajun Zhang ◽  
...  
Keyword(s):  
Water Splitting ◽  
Water Oxidation ◽  
Active Sites ◽  
Oxygen Vacancies ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Highly Efficient ◽  
Dual Metal ◽  
Nico2o4 Nanosheets ◽  
First Time

Spinel-structured NiCo2O4 nanosheets with dual-metal active sites, an ultrathin structure, and abundant oxygen vacancies were decorated for the first time on a BiVO4 photoanode for highly efficient PEC water oxidation.

Large area high-performance bismuth vanadate photoanode for efficient solar water splitting

2020 ◽  
Vol 8 (7) ◽  
pp. 3845-3850 ◽  
Author(s):  
Meirong Huang ◽  
Wenhai Lei ◽  
Min Wang ◽  
Shuji Zhao ◽  
Changli Li ◽  
...  
Keyword(s):  
Water Splitting ◽  
Water Oxidation ◽  
High Performance ◽  
Large Scale ◽  
Photocurrent Density ◽  
Large Area ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Harsh Conditions ◽  
Density Of Water

Large-scale BiVO4 photoanodes were prepared for solar water splitting. A photocurrent density of water oxidation of ∼2.23 mA cm−2 at 1.23 VRHE and ∼0.83% conversion efficiency at 0.65 VRHE were achieved, with <4% decay after 5 h of operation under harsh conditions.

Kinetic analysis of photoelectrochemical water oxidation by mesostructured Co-Pi/α-Fe2O3 photoanodes

2016 ◽  
Vol 4 (8) ◽  
pp. 2986-2994 ◽  
Author(s):  
Gerard M. Carroll ◽  
Daniel R. Gamelin
Keyword(s):  
Kinetic Analysis ◽  
Water Splitting ◽  
Water Oxidation ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Photoelectrochemical Water Oxidation

Kinetics measurements are used to clarify the effect of Co-Pi on solar water splitting by Co-Pi/α-Fe2O3 composite photoanodes.

Decoupling Hydrogen Production and Water Oxidation in a Hybrid Solar-Driven Vanadium Redox Cell Supported By a Bipolar Membrane with Earth-Abundant Catalysts

2018 ◽  
Vol MA2018-01 (31) ◽  
pp. 1864-1864
Author(s):  
Chengxiang("CX") Xiang
Keyword(s):  
Water Splitting ◽  
Water Oxidation ◽  
Cathode Surface ◽  
Hydrogen Generation ◽  
Anode Surface ◽  
Faradaic Efficiency ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Hydrogen Molecules ◽  
Vanadium Redox

Renewable hydrogen produced by solar water-splitting has the potential to balance the intermittent nature of the sunlight and support grid-scale energy storage. In a solar-driven water-splitting device, the cathode surface and the anode surface involve hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), which are tightly coupled with each other, that is, whenever one oxygen molecule was produced at the cathode surface, two hydrogen molecules were produced at the anode surface at the same time. In this talk, I will show some recent results on an alternative approach to solar water-splitting, where the electron and proton generated at OER was used to charge an aqueous vanadium solution in a 2.0 M sulfuric acid (pH = -0.16) electrolyte with near unity Faradaic efficiency, rather than being used directly to produce hydrogen at the cathode. The produced V2+ species in the cathode chamber was then passed through a MoCx based catalyst to produce hydrogen and to re-generate V3+ for the subsequent reduction, with an average hydrogen generation efficiency of 85% at different depths of charging. Coupled to a solar tracker, the solar-driven vanadium redox cell was charged outdoors under real-world illumination during the day and discharged at night to produce hydrogen with a daily average solar to hydrogen (STH) conversion efficiency of 5.8%.

Introductory lecture: sunlight-driven water splitting and carbon dioxide reduction by heterogeneous semiconductor systems as key processes in artificial photosynthesis

2017 ◽  
Vol 198 ◽  
pp. 11-35 ◽  
Author(s):  
Takashi Hisatomi ◽  
Kazunari Domen
Keyword(s):  
Carbon Dioxide ◽  
Water Splitting ◽  
Artificial Photosynthesis ◽  
State Of The Art ◽  
Carbon Dioxide Reduction ◽  
Economic Aspects ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Introductory Lecture ◽  
Photocatalytic Processes

Both solar water splitting and carbon dioxide reduction using semiconductor systems have been studied as important components of artificial photosynthesis. This paper describes the various photovoltaic-powered electrochemical, photoelectrochemical and photocatalytic processes. An overview of the state-of-the-art is presented along with a summary of recent research approaches. A concept developed by our own research group in which fixed particulate photocatalysts are applied to scalable solar water splitting is discussed. Finally, a description of a possible artificial photosynthesis plant is presented, along with a discussion of the economic aspects of operating such a plant and potential reactor designs.

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