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.

scholarly journals Enhanced photoelectrochemical water-splitting performance of semiconductors by surface passivation layers

2014 ◽  
Vol 7 (8) ◽  
pp. 2504-2517 ◽  
Author(s):  
Rui Liu ◽  
Zhi Zheng ◽  
Joshua Spurgeon ◽  
Xiaogang Yang
Keyword(s):  
Water Splitting ◽  
Surface Passivation ◽  
Review Paper ◽  
Photoelectrochemical Water Splitting ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Passivation Layers

This review paper summarized recent studies on improving the efficiency of semiconductor-based solar water-splitting devices by introducing surface passivation layers.

Carrier Engineering of Zr-mediated Ta3N5 Film as Efficient Photoanode for Solar Water Splitting

2021 ◽  
Author(s):  
Xin Zou ◽  
Xueyang Han ◽  
Chengxiong Wang ◽  
Yunkun Zhao ◽  
Chun Du ◽  
...  
Keyword(s):  
Band Structure ◽  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
Photoelectrochemical Water Splitting ◽  
Promising Candidate ◽  
Visible Light Absorption ◽  
Solar Water ◽  
Solar Water Splitting

Ta3N5 is regarded as a promising candidate material with adequate visible light absorption and band structure for photoelectrochemical water splitting. However, the performance of Ta3N5 is severely limited by the...

Band engineering for efficient catalyst-substrate coupling for photoelectrochemical water splitting

2016 ◽  
Vol 18 (16) ◽  
pp. 10751-10757 ◽  
Author(s):  
Joachim Klett ◽  
Jürgen Ziegler ◽  
Aldin Radetinac ◽  
Bernhard Kaiser ◽  
Rolf Schäfer ◽  
...  
Keyword(s):  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Efficient Catalyst ◽  
Solar Water ◽  
Band Engineering ◽  
Solar Water Splitting ◽  
Substrate Coupling

To achieve an overall efficient solar water splitting device, not only the efficiencies of photo-converter and catalyst are decisive, but also their appropriate coupling must be considered.

How bubbles affect light absorption in photoelectrodes for solar water splitting?

2022 ◽  
Author(s):  
Abhinav Bhanawat ◽  
Keyong Zhu ◽  
Laurent Pilon
Keyword(s):  
Water Splitting ◽  
Light Absorption ◽  
Incident Light ◽  
Gas Bubbles ◽  
Photoelectrochemical Water Splitting ◽  
Solar Water ◽  
Solar Water Splitting

This paper aims to systematically investigate the effect of gas bubbles formation on the performance of a horizontal photoelectrode exposed to normally incident light during photoelectrochemical water splitting. The presence...

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.

A modular device for large area integrated photoelectrochemical water-splitting as a versatile tool to evaluate photoabsorbers and catalysts

2017 ◽  
Vol 5 (10) ◽  
pp. 4818-4826 ◽  
Author(s):  
J.-P. Becker ◽  
B. Turan ◽  
V. Smirnov ◽  
K. Welter ◽  
F. Urbain ◽  
...  
Keyword(s):  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Active Area ◽  
Stable Operation ◽  
Large Area ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Versatile Tool

We present a stand-alone integrated solar water-splitting device with an active area of 64 cm2 and a long-term stable operation. The modular setup of the device provides a versatile tool to integrate and evaluate various combinations of photoelectrodes and catalysts.

New insight into the roles of oxygen vacancies in hematite for solar water splitting

2017 ◽  
Vol 19 (2) ◽  
pp. 1074-1082 ◽  
Author(s):  
Xin Zhao ◽  
Jianyong Feng ◽  
Shi Chen ◽  
Yizhong Huang ◽  
Tze Chien Sum ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Water Splitting ◽  
Oxygen Vacancies ◽  
Active Surface ◽  
Transfer Efficiency ◽  
Surface Species ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Insight Into

Oxygen vacancies have different impacts on the charge transfer efficiency of pristine and Ti-doped hematite through active surface species.

Oxygen Vacancies Engineering of Iron Oxides Films for Solar Water Splitting

2016 ◽  
Vol 120 (14) ◽  
pp. 7482-7490 ◽  
Author(s):  
Maxime Rioult ◽  
Dana Stanescu ◽  
Emiliano Fonda ◽  
Antoine Barbier ◽  
Hélène Magnan
Keyword(s):  
Water Splitting ◽  
Iron Oxides ◽  
Oxygen Vacancies ◽  
Solar Water ◽  
Solar Water Splitting

scholarly journals Enhanced photoelectrochemical water splitting using oxidized mass-selected Ti nanoclusters on metal oxide photoelectrodes

2017 ◽  
Vol 1 (2) ◽  
pp. 336-344 ◽  
Author(s):  
Andrew McInnes ◽  
Simon R. Plant ◽  
Isabel Mecking Ornelas ◽  
Richard E. Palmer ◽  
K. G. Upul Wijayantha
Keyword(s):  
Metal Oxide ◽  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Solar Water ◽  
Solar Water Splitting

Mass-selected Ti nanoclusters have been used to enhance the photocurrent of BiVO4 photoelectrodes for enhanced solar water splitting.

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