An investigation of ligand effects on the visible light-induced formation of porphyrin–iron(iv)-oxo intermediates

2017 ◽  
Vol 41 (23) ◽  
pp. 14334-14341 ◽  
Author(s):  
Ka Wai Kwong ◽  
Dharmesh Patel ◽  
Jonathan Malone ◽  
Ngo Fung Lee ◽  
Benjamin Kash ◽  
...  
Keyword(s):  
Visible Light ◽  
Kinetic Studies ◽  
Radical Cations ◽  
Oxidation Reactions ◽  
Ligand Effects

Depending on the structure of the porphyrin ligands, the visible light photolysis of porphyrin–iron(iii) bromates produced iron(iv)-oxo radical cations or iron(iv)-oxo porphyrins, permitting direct kinetic studies of their oxidation reactions.

LaTaON2-BaTaO2N solid solution for water oxidation

2021 ◽  
Author(s):  
Yuwei Zhang ◽  
Xiaoxiang Xu
Keyword(s):  
Solid Solution ◽  
Visible Light ◽  
Water Oxidation ◽  
Oxidation Reactions ◽  
Visible Light Active

Solid solution of LaTaON2 and BaTaO2N, i.e., La1-xBaxTaO1+yN2-y (0 ≤ x, y ≤ 1), have been investigated as visible-light-active photocatalysts for water oxidation reactions. A number of important parameters such...

Kinetic studies on visible light-assisted degradation of acid red 88 in presence of metal-ion coupled oxone reagent

2008 ◽  
Vol 83 (1-2) ◽  
pp. 8-14 ◽  
Author(s):  
J. Madhavan ◽  
P. Maruthamuthu ◽  
S. Murugesan ◽  
S. Anandan
Keyword(s):  
Visible Light ◽  
Metal Ion ◽  
Kinetic Studies

scholarly journals Benzothiadiazole Conjugated Metalorganic Framework for Organic Aerobic Oxidation Reactions under Visible Light

2017 ◽  
Vol 75 (1) ◽  
pp. 80 ◽  
Author(s):  
Wen-Qiang Zhang ◽  
Qiu-Yan Li ◽  
Xinyu Yang ◽  
Zheng Ma ◽  
Huanhuan Wang ◽  
...  
Keyword(s):  
Visible Light ◽  
Aerobic Oxidation ◽  
Oxidation Reactions ◽  
Metalorganic Framework

Nitrogen-doped LaZrTa3O11 as a visible light-active photocatalyst for water-reduction and -oxidation reactions

2020 ◽  
Vol 7 (14) ◽  
pp. 2669-2675
Author(s):  
Shunhang Wei ◽  
Xiaoxiang Xu
Keyword(s):  
Visible Light ◽  
Absorption Edge ◽  
Nitrogen Doping ◽  
Oxidation Reactions ◽  
Nitrogen Doped ◽  
Water Reduction ◽  
Light Activity ◽  
Visible Light Active ◽  
Reduction And Oxidation

Nitrogen doping red-shifted the absorption edge of LaZrTa3O11 markedly and induced visible-light activity for photocatalytic water-reduction and -oxidation reactions.

scholarly journals New Insights into the Electrocatalytic Mechanism of Methanol Oxidation on Amorphous Ni-B-Co Nanoparticles in Alkaline Media

Catalysts ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 749 ◽  
Author(s):  
Wu ◽  
Zhang ◽  
Zhang ◽  
Duan ◽  
Li ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Amorphous Materials ◽  
Reaction Order ◽  
Chemical Reduction ◽  
Three Dimensional ◽  
Kinetic Studies ◽  
Alkaline Media ◽  
Methanol Oxidation Reaction ◽  
Oxidation Reactions ◽  
Co Nanoparticles

Despite an increased interest in sustainable energy conversion systems, there have been limited studies investigating the electrocatalytic reaction mechanism of methanol oxidation on Ni-based amorphous materials in alkaline media. A thorough understanding of such mechanisms would aid in the development of amorphous catalytic materials for methanol oxidation reactions. In the present work, amorphous Ni-B and Ni-B-Co nanoparticles were prepared by a simple chemical reduction, and their electrocatalytic properties were investigated by cyclic voltammetry measurements. The diffusion coefficients (D0) for Ni-B, Ni-B-Co0.02, Ni-B-Co0.05, and Ni-B-Co0.1 nanoparticles were calculated to be 1.28 × 10−9, 2.35 × 10−9, 4.48 × 10−9 and 2.67 × 10−9 cm2 s−1, respectively. The reaction order of methanol in the studied transformation was approximately 0.5 for all studied catalysts, whereas the reaction order of the hydroxide ion was nearly 1. The activation energy (Ea) values of the reaction were also calculated for the Ni-B and Ni-B-Co nanoparticle systems. Based on our kinetic studies, a mechanism for the methanol oxidation reaction was proposed which involved formation of an electrocatalytic layer on the surface of amorphous Ni–B and Ni-B-Co nanoparticles. And methanol and hydroxide ions could diffuse freely through this three-dimensional porous conductive layer.

scholarly journals Correction: A Bpp-based dinuclear ruthenium photocatalyst for visible light-driven oxidation reactions

2020 ◽  
Vol 10 (20) ◽  
pp. 7068-7068
Author(s):  
Seán Hennessey ◽  
Pau Farràs ◽  
Jordi Benet-Buchholz ◽  
Antoni Llobet
Keyword(s):  
Visible Light ◽  
Oxidation Reactions ◽  
Visible Light Driven ◽  
Dinuclear Ruthenium

Correction for ‘A Bpp-based dinuclear ruthenium photocatalyst for visible light-driven oxidation reactions’ by Seán Hennessey et al., Catal. Sci. Technol., 2019, 9, 6760–6768, DOI: 10.1039/C9CY01796H.

Kinetic studies on visible-light-switchable photochromic fluorophores based on diarylethenes

2011 ◽  
Vol 10 (9) ◽  
pp. 1488 ◽  
Author(s):  
Britta Seefeldt ◽  
Kai Altenhöner ◽  
Oliver Tosic ◽  
Thomas Geisler ◽  
Markus Sauer ◽  
...  
Keyword(s):  
Visible Light ◽  
Kinetic Studies
Sign in / Sign up

Export Citation Format

Share Document