Titanium trisulphide (TiS3) nanoribbons for easy hydrogen photogeneration under visible light

2015 ◽  
Vol 3 (15) ◽  
pp. 7959-7965 ◽  
Author(s):  
M. Barawi ◽  
E. Flores ◽  
I. J. Ferrer ◽  
J. R. Ares ◽  
C. Sánchez
Keyword(s):  
Mass Spectrometry ◽  
Visible Light ◽  
Photoelectrochemical Cell ◽  
Flat Band ◽  
Flat Band Potential

Flat band potential of TiS3 in a photoelectrochemical cell is determined and the photogenerated hydrogen is quantified by mass spectrometry.

scholarly journals Synthesis of four-angle star-like CoAl-MMO/BiVO4 p–n heterojunction and its application in photocatalytic desulfurization

RSC Advances ◽  
2017 ◽  
Vol 7 (41) ◽  
pp. 25455-25460 ◽  
Author(s):  
Limin Yun ◽  
Zhanxu Yang ◽  
Zong-Bao Yu ◽  
Tianfeng Cai ◽  
Yue Li ◽  
...  
Keyword(s):  
Visible Light ◽  
Band Gap ◽  
Visible Light Irradiation ◽  
Photocatalytic Oxidation ◽  
Light Irradiation ◽  
Flat Band ◽  
Flat Band Potential ◽  
Highly Efficient ◽  
Highly Dispersed

Four-angle star-like BiVO4 loaded with highly dispersed CoAl-MMO nanoparticles demonstrated highly efficient photocatalytic oxidation of thiophene under visible light irradiation. It's due to a narrower band gap, and more negative flat band potential of the composite.

On the Flat-Band Potential and the Frequency Dispersion of Capacitance and Its Removal in an Normal-Cadmium Telluride in Alkaline Selenide, Polyselenide Photoelectrochemical Cell

1986 ◽  
Vol 39 (2) ◽  
pp. 347
Author(s):  
LE Lyons ◽  
TL Young
Keyword(s):  
Goodness Of Fit ◽  
Frequency Dispersion ◽  
Surface Damage ◽  
Photoelectrochemical Cell ◽  
Flat Band ◽  
Sufficient Information ◽  
Flat Band Potential ◽  
Schottky Plot ◽  
Dispersion Data ◽  
Pt Cell

When seepage of the electrolyte between the semiconductor crystal and its insulation was prevented, the equivalent series capacitance CS of an n-CdTe|Se2-, Sen2-,OH-|Pt cell was almost independent of frequency (<2% increase of CS per decade decrease of frequency) in the range 104-2 Hz. Attributing CS wholly to the space-charge capacitance resulted in a linear Mott- Schottky plot and this yielded a flat-band potential of -2.0�0.1 V v . s.c.e . and a built-in potential of 1.08�0.06 V. This was consistent with the observed current-voltage curves in both dark and light. Two conditions under which frequency dispersion was observed were (a) electrolyte seepage and (b) surface damage. The insulating techniques which allowed seepage were similar to those of other workers. The effects of these imperfections on the Mott- Schottky plot are considered. Attempts to extract useful information from frequency dispersion data showed that it is difficult or impossible to obtain a unambiguous equivalent circuit solely on the basis of goodness-of-fit of calculated to observed impedances. The ambiguity can be removed only when sufficient information beyond impedance-frequency data is available. For electrodes with seepage, a model due to Tomkiewicz led to the correct value of the built-in potential.

Flat band potential of as-grown n-MoSe2 single crystal electrodes

1988 ◽  
Vol 110 (1) ◽  
pp. 293-299 ◽  
Author(s):  
R. Srivastava ◽  
V. M. Pathak ◽  
V. V. Rao
Keyword(s):  
Single Crystal ◽  
Flat Band ◽  
Flat Band Potential

Fermi level pinning or semiconductor electrodes in aqueous and non aqueous electrolytes: influence of the modification of the electrode surface

1989 ◽  
Vol 67 (3) ◽  
pp. 382-388 ◽  
Author(s):  
O. Savadogo
Keyword(s):  
Fermi Level ◽  
Acidic Medium ◽  
Open Circuit ◽  
Flat Band ◽  
Flat Band Potential ◽  
Fermi Level Pinning ◽  
Material Surfaces ◽  
Electrolyte Interface ◽  
Semiconductor Electrodes ◽  
Minority Carriers

Modification of several semiconductors material surfaces with H4SiW12O40•nH2O have been carried out to produce an increase in the open circuit photopotential at the semiconductor/electrolyte interface (Voc) without changing the flat-band potential. The augmentation of Voc is shown to be attributed to a decrease of the minority carriers recombination at the semiconductor/electrolyte interface along with the suppression of Fermi level pinning. The enhancement of Voc and the electrocatalytic activity of the hydrogen evolution reaction in acidic medium of the derivatized electrodes is attributed to the Fermi level unpinning. Keywords: photoelectrodes, photoelectrocatalysis, pinning, modification improvement.

FeCoW multimetal oxide-coated W:BiVO4 photoanode for efficient oxygen evolution

2018 ◽  
Vol 2 (9) ◽  
pp. 2053-2059 ◽  
Author(s):  
Xiaorong Liang ◽  
Jiale Xie ◽  
Jinyun Xiong ◽  
Liangping Gong ◽  
Chang Ming Li
Keyword(s):  
Oxygen Evolution ◽  
Flat Band ◽  
Flat Band Potential ◽  
Negative Shift

A FeCoW multimetal oxide-coated W:BiVO4 photoanode performs a 3.8 times photocurrent and a negative shift of the flat-band potential by 280 mV in comparison to a W:BiVO4 photoanode.

scholarly journals Visible-light reversible photopolymerisation: insights via online photoflow – electrospray ionisation – mass spectrometry

2020 ◽  
Vol 11 (40) ◽  
pp. 6435-6440
Author(s):  
Matthias Van De Walle ◽  
Charlotte Petit ◽  
James P. Blinco ◽  
Christopher Barner-Kowollik
Keyword(s):  
Mass Spectrometry ◽  
Visible Light ◽  
Electrospray Ionisation ◽  
Electrospray Ionisation Mass Spectrometry ◽  
Ionisation Mass Spectrometry ◽  
Ionisation Mass

Herein, we introduce a scalable photopolyaddition polymerisations using the pyrene-chalcone [2+2]-cycloaddition and monitor the photodepolymerisation process via an online photoflow – electrospray ionisation mass spectrometry setup.

Effect of electrolytes on flat-band potential of n-BaTiO3 semiconductor

1983 ◽  
Vol 28 (8) ◽  
pp. 1063-1066 ◽  
Author(s):  
Maheshwar Sharon ◽  
Ashwani Sinha
Keyword(s):  
Flat Band ◽  
Flat Band Potential
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