scholarly journals Correlating flat band and onset potentials for solar water splitting on model hematite photoanodes

RSC Advances ◽  
2015 ◽  
Vol 5 (75) ◽  
pp. 61021-61030 ◽  
Author(s):  
Beniamino Iandolo ◽  
Haixiang Zhang ◽  
Björn Wickman ◽  
Igor Zorić ◽  
Gavin Conibeer ◽  
...  
Keyword(s):  
Grain Boundaries ◽  
Water Splitting ◽  
Water Oxidation ◽  
Oxidation Time ◽  
Flat Band ◽  
Flat Band Potential ◽  
Onset Potential ◽  
Solar Water ◽  
Solar Water Splitting

Increasing oxidation time during fabrication of hematite (Fe2O3) films reduces the amount of grain boundaries, resulting in lower flat band potential and onset potential for water oxidation.

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.

scholarly journals A nanostructured NiO/cubic SiC p–n heterojunction photoanode for enhanced solar water splitting

2019 ◽  
Vol 7 (9) ◽  
pp. 4721-4728 ◽  
Author(s):  
Jingxin Jian ◽  
Yuchen Shi ◽  
Sebastian Ekeroth ◽  
Julien Keraudy ◽  
Mikael Syväjärvi ◽  
...  
Keyword(s):  
Water Splitting ◽  
Fill Factor ◽  
Photoelectrochemical Water Splitting ◽  
Onset Potential ◽  
Solar Water ◽  
Solar Water Splitting

A 3C-SiC/NiO p–n heterojunction photoanode exhibits a substantially improved photoelectrochemical water-splitting performance in terms of photocurrent, onset potential and fill-factor.

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