Modulating oxygen vacancies in Sn-doped hematite film grown on silicon microwires for photoelectrochemical water oxidation

2018 ◽  
Vol 6 (32) ◽  
pp. 15593-15602 ◽  
Author(s):  
Zhongyuan Zhou ◽  
Shaolong Wu ◽  
Linling Qin ◽  
Liang Li ◽  
Liujing Li ◽  
...  
Keyword(s):  
Absorption Spectrum ◽  
Water Splitting ◽  
Water Oxidation ◽  
Oxygen Vacancies ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Silicon Microwires ◽  
Photoelectrochemical Water Oxidation

Dual-absorber photoelectrodes are attractive candidates for solar water splitting due to their broadened absorption spectrum and improved photovoltage compared to single-absorber systems.

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.

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.

scholarly journals Remarkable synergy of borate and interfacial hole transporter on BiVO4 photoanodes for photoelectrochemical water oxidation

2021 ◽  
Author(s):  
Qijun Meng ◽  
Biaobiao Zhang ◽  
Hao Yang ◽  
Chang Liu ◽  
Yingzheng Li ◽  
...  
Keyword(s):  
Water Splitting ◽  
Water Oxidation ◽  
Artificial Photosynthesis ◽  
Building Blocks ◽  
Bismuth Vanadate ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Highly Efficient ◽  
Photoelectrochemical Water Oxidation

Bismuth vanadate (BiVO4) is one of the most fascinating building blocks for the design and assembly of highly efficient artificial photosynthesis devices for solar water splitting. Our recent report has...

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.

scholarly journals Activating the surface and bulk of hematite photoanodes to improve solar water splitting

2019 ◽  
Vol 10 (44) ◽  
pp. 10436-10444 ◽  
Author(s):  
Hemin Zhang ◽  
Jong Hyun Park ◽  
Woo Jin Byun ◽  
Myoung Hoon Song ◽  
Jae Sung Lee
Keyword(s):  
Water Splitting ◽  
Oxygen Vacancies ◽  
Surface Passivation ◽  
Photoelectrochemical Water Splitting ◽  
Electrochemical Activation ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Waking Up

Waking up the hematite lion: a simple electrochemical activation treatment leads to surface passivation outside and generation of oxygen vacancies inside, which greatly enhances photoelectrochemical water splitting.

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