scholarly journals Hematite Photoanode with Complex Nanoarchitecture Providing Tunable Gradient Doping and Low Onset Potential for Photoelectrochemical Water Splitting

ChemSusChem ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 1873-1879 ◽  
Author(s):  
Hyo-Jin Ahn ◽  
Anandarup Goswami ◽  
Francesca Riboni ◽  
Stepan Kment ◽  
Alberto Naldoni ◽  
...  
Keyword(s):  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Onset Potential

Photoelectrochemical water splitting at low applied potential using a NiOOH coated codoped (Sn, Zr) α-Fe2O3 photoanode

2015 ◽  
Vol 3 (11) ◽  
pp. 5949-5961 ◽  
Author(s):  
Andebet Gedamu Tamirat ◽  
Wei-Nien Su ◽  
Amare Aregahegn Dubale ◽  
Hung-Ming Chen ◽  
Bing-Joe Hwang
Keyword(s):  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Applied Potential ◽  
Photoelectrochemical Performance ◽  
Onset Potential

We synthesized a NiOOH decorated codoped (Sn, Zr) α-Fe2O3 photoanode that results in enhanced photoelectrochemical performance and drastically lower onset potential.

scholarly journals A significant cathodic shift in the onset potential of photoelectrochemical water splitting for hematite nanostructures grown from Fe–Si alloys

2014 ◽  
Vol 1 (3) ◽  
pp. 344-347 ◽  
Author(s):  
Lei Wang ◽  
Chong-Yong Lee ◽  
Robin Kirchgeorg ◽  
Helga Hildebrand ◽  
Julian Müller ◽  
...  
Keyword(s):  
Thermal Oxidation ◽  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Onset Potential

Thermal oxidation of Fe to nanostructured hematite (wires, flakes) is currently widely investigated to produce efficient photoanodes for photoelectrochemical water splitting.

Mg–Zr Cosubstituted Ta3N5 Photoanode for Lower-Onset-Potential Solar-Driven Photoelectrochemical Water Splitting

2015 ◽  
Vol 137 (40) ◽  
pp. 12780-12783 ◽  
Author(s):  
Jeongsuk Seo ◽  
Tsuyoshi Takata ◽  
Mamiko Nakabayashi ◽  
Takashi Hisatomi ◽  
Naoya Shibata ◽  
...  
Keyword(s):  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Onset Potential

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.

Characteristics of crystalline sputtered LaFeO3 thin films as photoelectrochemical water splitting photocathodes

Nanoscale ◽  
2020 ◽  
Vol 12 (17) ◽  
pp. 9653-9660 ◽  
Author(s):  
Min-Kyu Son ◽  
Hyunwoong Seo ◽  
Motonori Watanabe ◽  
Masaharu Shiratani ◽  
Tatsumi Ishihara
Keyword(s):  
Thin Films ◽  
Water Splitting ◽  
Early Onset ◽  
Photoelectrochemical Water Splitting ◽  
Onset Potential

A transparent crystalline sputtered LaFeO3 photocathode with an early onset potential for stable photoelectrochemical water splitting.

Nanostructured TaON/Ta3N5 as a highly efficient type-II heterojunction photoanode for photoelectrochemical water splitting

2018 ◽  
Vol 47 (27) ◽  
pp. 8949-8955 ◽  
Author(s):  
Lang Pei ◽  
Hongxu Wang ◽  
Xiaohui Wang ◽  
Zhe Xu ◽  
Shicheng Yan ◽  
...  
Keyword(s):  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Type Ii ◽  
Reversible Hydrogen Electrode ◽  
Hydrogen Electrode ◽  
Onset Potential ◽  
Highly Efficient ◽  
Negative Shift ◽  
Efficient Type

A heterostructured TaON/Ta3N5 photoanode exhibits a 350 mV negative shift of photocurrent onset potential to 0.65 V versus the reversible hydrogen electrode.

scholarly journals Photoelectrochemical water splitting using WO3 photoanodes: the substrate and temperature roles

2016 ◽  
Vol 18 (7) ◽  
pp. 5232-5243 ◽  
Author(s):  
Paula Dias ◽  
Tânia Lopes ◽  
Laura Meda ◽  
Luísa Andrade ◽  
Adélio Mendes
Keyword(s):  
Water Splitting ◽  
Recombination Rate ◽  
Operating Conditions ◽  
Photoelectrochemical Water Splitting ◽  
Onset Potential ◽  
Substrate Influence

The substrate influence on the performance of WO3 photoanodes was studied up to 65 °C. The photocurrent increased with temperature and the onset potential shifted to lower potentials. The best operating conditions were: 45 °C for WO3/FTO and 55 °C for WO3/metal; the recombination rate increased for higher temperatures.

Defect-rich decorated TiO2 nanowires for super-efficient photoelectrochemical water splitting driven by visible light

2015 ◽  
Vol 8 (11) ◽  
pp. 3363-3373 ◽  
Author(s):  
Md Anisur Rahman ◽  
Samad Bazargan ◽  
Saurabh Srivastava ◽  
Xiongyao Wang ◽  
Marwa Abd-Ellah ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Conversion Efficiency ◽  
Photoelectrochemical Water Splitting ◽  
Visible Light Region ◽  
Tio2 Nanowires ◽  
High Conversion Efficiency ◽  
Splitting Property ◽  
Onset Potential ◽  
Light Region

Defect-rich 1D TiO2 nanostructures show excellent photoelectrochemical water splitting property in the visible light region with a low onset potential of 0.3 V vs. RHE and a remarkably high conversion efficiency of 3.6%.

Sequentially surface modified hematite enables lower applied bias photoelectrochemical water splitting

2017 ◽  
Vol 19 (31) ◽  
pp. 20881-20890 ◽  
Author(s):  
Andebet Gedamu Tamirat ◽  
Amare Aregahegn Dubale ◽  
Wei-Nien Su ◽  
Hung-Ming Chen ◽  
Bing-Joe Hwang
Keyword(s):  
Water Splitting ◽  
Surface Passivation ◽  
Surface Treatments ◽  
Passivation Layer ◽  
Photoelectrochemical Water Splitting ◽  
Applied Bias ◽  
Onset Potential ◽  
Heavily Doped ◽  
Surface Modified

We achieve a low onset potential of 0.49 V using heavily doped Fe2−xSnxO3surface passivation layer and NiOOH dual surface treatments.

Towards zero bias photoelectrochemical water splitting: onset potential improvement on a Mg:GaN modified-Ta3N5 photoanode

2018 ◽  
Vol 6 (31) ◽  
pp. 15265-15273 ◽  
Author(s):  
Ela Nurlaela ◽  
Yutaka Sasaki ◽  
Mamiko Nakabayashi ◽  
Naoya Shibata ◽  
Taro Yamada ◽  
...  
Keyword(s):  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Electron Hole ◽  
Zero Bias ◽  
Hole Transfer ◽  
Potential Shift ◽  
Onset Potential ◽  
Potential Improvement ◽  
Mg Doped

A remarkable onset potential shift has been demonstrated on Ta3N5 modified with a Mg:GaN layer. The Mg-doped GaN band positions facilitate more efficient electron/hole transfer to/from Ta3N5, inducing a negative onset potential shift to 0 vs. RHE.

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