Effect of a Cobalt-Based Oxygen Evolution Catalyst on the Stability and the Selectivity of Photo-Oxidation Reactions of a WO3Photoanode

2011 ◽  
Vol 23 (5) ◽  
pp. 1105-1112 ◽  
Author(s):  
Jason A. Seabold ◽  
Kyoung-Shin Choi
Keyword(s):  
Oxygen Evolution ◽  
Oxidation Reactions ◽  
Photo Oxidation ◽  
The Stability

Interfacing RuO2 with Pt to induce efficient charge transfer from Pt to RuO2 for highly efficient and stable oxygen evolution under acidic media

2021 ◽  
Author(s):  
Taehyun Kwon ◽  
Heesu Yang ◽  
Minki Jun ◽  
Taekyung Kim ◽  
Jinwhan Joo ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Acidic Media ◽  
Highly Efficient ◽  
Efficient Charge ◽  
Stable Oxygen ◽  
The Stability

The oxygen evolution reaction (OER) requires a large overpotential which undermines the stability of electrocatalysts, typically IrOx or RuOx. RuOx is particularly vulnerable to high overpotential in acidic media, due...

scholarly journals Rust Conversion Performance of Phosphoric Acid-Gallic Acid in Vinyl Chloride Acrylic Emulsion

Coatings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 152
Author(s):  
Xin Wang ◽  
Qingjun Zhu ◽  
Xiangju Liu ◽  
Baorong Hou
Keyword(s):  
Phosphoric Acid ◽  
Gallic Acid ◽  
Vinyl Chloride ◽  
Salt Spray ◽  
Corrosion Current ◽  
Oxidation Reactions ◽  
Acrylic Emulsion ◽  
Conversion Performance ◽  
The Stability ◽  
Iron Complexation

This work studied the application of phosphoric acid-gallic acid in vinyl chloride acrylic emulsion and its rust conversion performance. The increase of phosphoric acid affected the stability of the system, leading to the rapid precipitation of flocculent precipitation. Rust conversion coating (RCC) showed the best synergistic conversion effect when gallic acid (GA) was 0.2 wt.% and phosphoric acid (PA) was 2 wt.%. XRD and FTIR analysis show that the components of adherent rust (AR) are α-FeOOH, γ-FeOOH and Fe3O4. The conversion products are ferric phosphate (FP) and ferric gallate (FG). The RCC can effectively treat the rusted steel (RS) produced by simulated marine atmospheric corrosion. The corrosion current density was reduced by three orders of magnitude, the adhesion reached 2.75 MPa, and the salt spray corrosion resistance was 20 days. The results of Raman, XPS, SEM and EDS show that the ionic dissolution of iron, complexation and further oxidation reactions occur at the interface between the adherent rust and the RCC. After rust conversion treatment, unreacted rust (UR) affects the further improvement of adhesion strength and anti-corrosion performance.

scholarly journals Characteristics and Kinetics of Rosin Pentaerythritol Ester via Oxidation Process under Ultraviolet Irradiation

Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 2816 ◽  
Author(s):  
Yuanlin Li ◽  
Xiongmin Liu ◽  
Qiang Zhang ◽  
Bo Wang ◽  
Chang Yu ◽  
...  
Keyword(s):  
Light Intensity ◽  
Oxidation Kinetics ◽  
Pseudo First Order Reaction ◽  
Initial Oxidation ◽  
Photo Oxidation ◽  
Average Value ◽  
Pentaerythritol Ester ◽  
Fundamental Information ◽  
The Stability ◽  
Kinetics Of

A self-designed reaction device was used as a promising equipment to investigate the oxidation characteristics and kinetics of rosin pentaerythritol ester (RPE) under UV irradiation. Photo-oxidation kinetics and the initial quantum yield (Φ) of RPE were calculated. The initial oxidation product of the photo-oxidation reaction—peroxide was analyzed by iodimetry. The peroxide concentration is related to the light intensity (I) and the temperature (T), and the increasing T and I would destabilize the RPE by accelerating peroxide forming. Photo-oxidation of RPE follows the pseudo first-order reaction kinetics. The relationship between activation energy and logarithm of light intensity (ln I) is linear, and it is expressed as Ea = −4.937ln I + 45.565. Φ was calculated by the photo-oxidation kinetics, and the average value of Φ was 7.19% in the light intensity range of 200–800 μW cm−2. This research can provide fundamental information for application of RPE, and help obtain a better understanding of the stability of rosin esters.

Excimers and exciplex as sensitisers for photo-oxidation reactions

Tetrahedron ◽  
1984 ◽  
Vol 40 (6) ◽  
pp. 999-1004 ◽  
Author(s):  
R. Stephen Davidson ◽  
Julie E. Pratt
Keyword(s):  
Oxidation Reactions ◽  
Photo Oxidation

The Rates and Mechanisms for VOC Photo-oxidation Reactions under Simulated Tropospheric Conditions

1997 ◽  
pp. 128-134
Author(s):  
J. Alistair Kerr ◽  
David W. Stocker ◽  
Marco Semadeni ◽  
Jürg Eberhard ◽  
Claudia Müller
Keyword(s):  
Oxidation Reactions ◽  
Photo Oxidation

Electrocatalytic Oxidative Upgrading of Biomass Platform Chemicals: From the Aspect of Reaction Mechanism

2021 ◽  
Author(s):  
Hua Zhou ◽  
Zhenhua Li ◽  
Lina Ma ◽  
Haohong Duan
Keyword(s):  
Reaction Mechanism ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Oxidation Reactions ◽  
Platform Chemicals ◽  
Wide Range

Oxidation reactions provide a wide range of important chemicals in industry; however, most of them are produced from fossil feedstocks. As a candidate of oxygen evolution reaction (OER), the electrooxidation...

Carbon oxidation reactions could misguide the evaluation of carbon black-based oxygen-evolution electrocatalysts

2017 ◽  
Vol 53 (84) ◽  
pp. 11556-11559 ◽  
Author(s):  
Wang Wang ◽  
Jin Luo ◽  
Shengli Chen
Keyword(s):  
Carbon Black ◽  
Oxygen Evolution ◽  
Carbon Oxidation ◽  
Oxidation Reactions

Carbon may suffer severe oxidation during OER, leading to overestimation of the activity of carbon-black based electrocatalysts towards OER.

Organic chemistry at anodes and photoanodes

2018 ◽  
Vol 2 (9) ◽  
pp. 1905-1927 ◽  
Author(s):  
Lacey M. Reid ◽  
Tengfei Li ◽  
Yang Cao ◽  
Curtis P. Berlinguette
Keyword(s):  
Organic Chemistry ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Hydrogen Generation ◽  
Oxidation Reactions ◽  
Organic Oxidation

Organic oxidation reactions can replace the anodic oxygen evolution of water splitting for clean hydrogen generation paired with high-value product.

scholarly journals Correction: Improving the stability and selectivity for the oxygen-evolution reaction on semiconducting WO3 photoelectrodes with a solid-state FeOOH catalyst

2016 ◽  
Vol 4 (8) ◽  
pp. 3153-3153 ◽  
Author(s):  
Charles R. Lhermitte ◽  
J. Garret Verwer ◽  
Bart M. Bartlett
Keyword(s):  
Solid State ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
The Stability

Correction for ‘Improving the stability and selectivity for the oxygen-evolution reaction on semiconducting WO3 photoelectrodes with a solid-state FeOOH catalyst’ by Charles R. Lhermitte et al., J. Mater. Chem. A, 2016, DOI: 10.1039/c5ta04747a.

Mechanisms of photo-oxidation reactions

1979 ◽  
Vol 10 (2) ◽  
pp. 158-170 ◽  
Author(s):  
Robert S. Davidson
Keyword(s):  
Oxidation Reactions ◽  
Photo Oxidation
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