Electrochemical Generation of Green Rust using Electrocoagulation

2019 ◽  
Vol 3 (18) ◽  
pp. 67-78 ◽  
Author(s):  
Hector A. Moreno ◽  
David L. Cocke ◽  
Jewel A. Gomes ◽  
Paul Morkovsky ◽  
Jose Parga ◽  
...  
Keyword(s):  
Green Rust ◽  
Electrochemical Generation

Electrochemical Generation of Green Rust and Modified Green Rust for Water Treatment Applications

2016 ◽  
Vol 6 (2) ◽  
pp. 83-91 ◽  
Author(s):  
Andrew Jewel Gomes ◽  
Arnab Baksi ◽  
Iftikher Haider ◽  
John Gossage ◽  
Hector Moreno ◽  
...  
Keyword(s):  
Water Treatment ◽  
Green Rust ◽  
Electrochemical Generation

scholarly journals Sustainable Oxygen Evolution Catalysis - Electrochemical Generation of Mössbauerite via Corrosion Engineering of Steel

2021 ◽  
Author(s):  
Sebastian Weiss ◽  
A. V. Radha ◽  
Michael Ertl ◽  
Catherine McCammon ◽  
Josef Breu
Keyword(s):  
Oxygen Evolution ◽  
Steel Substrate ◽  
Electrochemical Corrosion ◽  
Corrosion Process ◽  
Green Rust ◽  
Trivalent Iron ◽  
Electrochemical Generation

A versatile electrochemical corrosion process was used to generate green rust (GR) on a steel substrate and to transform it into the trivalent iron-only oxygen evolution catalyst mössbauerite (GR*) upon...

Electrochemical Vicinal Difluorination of Alkenes: Sustainable, Scalable, and Amenable to Electron-rich Substrates

2019 ◽  
Author(s):  
Sayad Doobary ◽  
Alexi Sedikides ◽  
Henry caldora ◽  
Darren poole ◽  
Alastair Lennox
Keyword(s):  
Bioactive Compounds ◽  
Hypervalent Iodine ◽  
Electrochemical Generation ◽  
Oxidative Decomposition ◽  
Alkyl Groups ◽  
Rich Functionality

Fluorinated alkyl groups are important motifs in bioactive compounds, positively influencing pharmacokinetics, potency and F conformation. The oxidative difluorination of alkenes represents an H important strategy for their preparation, yet current methods are limited in their alkene-types and tolerance of electron-rich, readily oxidized functionalities, as well as in their scalability. Herein, we report a method for the difluorination of a number of unactivated alkene-types that is tolerant of electron-rich functionality, giving products that are otherwise unattainable. Key to success is the electrochemical generation of a hypervalent iodine mediator (in the presence of nucleophilic fluoride and HFIP) using an ‘ex-cell’ approach, which avoids the oxidative decomposition of the substrate. The more sustainable conditions give good to excellent yields of product in up to decagram scales<br>

Properties of electrochemically generated primary cationradicals of phenyl- and 2-(4-tolyl)-1,3,4,7-tetramethylisoindoles

1980 ◽  
Vol 45 (6) ◽  
pp. 1669-1676 ◽  
Author(s):  
Pavel Kubáček
Keyword(s):  
Electrochemical Oxidation ◽  
Spin Polarization ◽  
High Spin ◽  
Epr Spectroscopy ◽  
Half Life ◽  
Electrochemical Behaviour ◽  
Epr Spectra ◽  
Electrochemical Generation ◽  
Splitting Constant ◽  
Reduced Temperature

The first step of electrochemical oxidation of 2-phenyl- and 2-(4-tolyl)-1,3,4,7-tetramethylisoindoles in anhydrous acetonitrile produces relatively stable cationradicals which have been studied by means of EPR spectroscopy using the method of internal electrochemical generation of radicals under reduced temperature. The same electrochemical behaviour of the both studied derivatives and identical EPR spectra of their cationradicals can be explained within the Huckel MO method. The largest contribution to the magnitude of splitting constant of nitrogen nucleus is due to π-σ-spin polarization of C-N bonds caused by high spin abundance of pz-AO of carbon atoms. Half-life of decomposition of the studied cationradicals is 4 min at -30°C.

Preparation and properties of green rust type substances

1987 ◽  
Vol 52 (1) ◽  
pp. 93-102 ◽  
Author(s):  
Jaroslav Vinš ◽  
Jan Šubrt ◽  
Vladimír Zapletal ◽  
František Hanousek
Keyword(s):  
Chemical Composition ◽  
Electron Diffraction ◽  
Green Rust ◽  
X Ray ◽  
Synthesis Conditions ◽  
Diffraction Patterns

A method has been worked out for the reproducible preparation of Green Rust substances involving SO42-, Cl-, Br-, and I- anions. The chemical composition of the substances prepared has been followed in dependence on the synthesis conditions. The powder X-ray and electron diffraction patterns and infrared and Moessbauer spectra have been measured and discussed.

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