Electrosynthesis

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Electrochemistry – Escaping Stoichiometric Redox Reagents

by Jonathan Kennedy-Ellis

Redox chemistry is ubiquitous throughout organic chemistry since control of the oxidation state of carbon and heteroatom within chemical structures is vital to the construction of both simple and complex organic compounds. Aside from elegant reactions where the oxidant or reductant are directly incorporated into the final product, reactions often require stoichiometric amounts of external oxidant and reductant, reducing the atom economy, increasing the cost, and the environmental impact of the process. While there are proposed solutions utilizing molecular oxygen as a “green” oxidant, this introduces new concerns such as the safety of oxygenated environments and organic solvents, or the stability of intermediates in oxygen.1,2  Currently there aren’t similarly low environmental impact reducing agents available.

Electrochemistry offers the potential to eliminate both stoichiometric chemical oxidant or reductant. By utilizing electrons directly as the oxidant or reductant, we can perform these reactions in an easily controlled manner, potentially offering fewer side-reactions.

 

For Full Article click here

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Unlocking New Potential using Photoelectrochemistry in Organic Synthesis

by Michael Clark

Introduction

Photocatalysis and electrochemistry have long been useful tools in organic synthesis. These techniques allow for transformations under mild conditions without the use of stoichiometric reagents; however, by combining these two well-studied techniques it is possible to uncover previously inaccessible reactions. By using a photocatalyst to perform chemical transformations followed by the electrochemical regeneration of the catalyst, the need for strong chemical oxidants or reductants is removed, along with the possibility for unwanted electrochemical reactions due to the relatively low potential required.1 Some of these reactions have even been demonstrated in a flow-cell capacity, enabling the ability for potential scale-up to industrial production. Limitations currently exist in these chemical processes like the use of organic solvents that make it difficult to scale. However, companies such as the Electrosynthesis Company are uniquely positioned to help bridge that gap thanks to a deep understanding of both research lab, and industrial plant processes.

Below are a series of recent reports on the use of photoelectrochemistry in organic synthesis that demonstrate the combined use of photocatalysts with electrochemistry to perform previously difficult reactions, as well as issues that must be overcome before these techniques could be implemented for large-scale use.

Full Article: Unlocking New Potential using Photoelectrochemistry in Organic Synthesis

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Electrosynthesis Company Announces Partnership with Eurodia Group

 

A market-leading expertise for an optimal performance

Eurodia Group and Electrosynthesis Company, Inc have decided to gather their expertise and strengths in electrochemistry by establishing a partnership for commercialization of electrodialysis on the north American market and Mexico.

Combining Electrosynthesis’s internationally recognized expertise in fundamental and applied R&D with our market-leading position in various sectors, we will offer customers a complete range of top-quality services from feasibility and pilot tests to industrial units for conventional and bipolar electrodialysis. 

ED has a wide range of applications in many industrial fields among which food products, wine, amino acids, lithium industry, decarbonation of chemical processes, etc.

Whatever your project is, these two experts will design, develop and install your customized industrial purification process.

This strong technological and commercial cooperation for electrodialysis represents a significant and valuable step forward for industries worldwide requiring electro-membrane purification processes.

Because alone you go faster but together we go further, contact us!

 

 

 

 

 

 

 

 

 

 

About Electrosynthesis Company, Inc.

Based in Lancaster, NY-USA, Electrosynthesis specializes in the development of electrochemical technologies for energy storage systems, fuel cells, electrodialysis, separations, sensors, synthesis of inorganic and organic chemicals and recycling of waste streams.

We offer strictly confidential electrochemistry research and development services, engineering, and the sale of electrochemical systems to provide practical solutions for clients worldwide.

Our internationally recognized expertise in electrochemistry gives our clients fast-track technology development and competitive advantage at affordable cost.

More info at www.electrosynthesis.com

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Optimizing Battery Performance

Optimizing Battery Performance

Electrosynthesis Company has been developing and supporting the commercialization of redox flow battery technologies for more than 30 years. One of our key developmental tools is to test single cell batteries (as shown in photo) leading to cell stack testing at scales ranging from 10 cm2 (laboratory) to 0.7 m2 (commercial). The results of such testing help us screen and validate battery components, design-based performance, and stability.

Battery cells comprise various materials assembled in layers including bipolar/flow field plates, electrodes, gaskets, and membranes. Each component has its own role to make the battery operational and each will contribute to the internal cell resistance. A high performing battery will require the cell resistance to be as small as possible!

Our first step to reduce the cell resistance is to understand the composition of it. One of our skills is to diagnose the battery cell in-situ and identify the factor(s) limiting the battery performance using electrochemical impedance spectroscopy (EIS). Understanding the dominating factor(s), will facilitate how to improve the battery performance.

For the full article click Optimizing Battery Performance

 

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Exploring the Reach of Organic Electrochemistry

by Jonathan Kennedy-Ellis

Organic electrochemistry continues to enjoy a renaissance as more groups investigate its ability to perform selective transformations without the use of stoichiometric chemical oxidants, metal catalysts, or high energy precursors. Since our previous review by Matthew Hartle, research groups have prevailed to further expand the organic electrochemistry toolkit.1 Furthermore, there has been renewed interest by major industry players who see electrochemistry’s potential to use renewable electricity sources as an increasingly more economical pathway to essential products. The gap between academia and industry continues as while new processes develop in lab-based environments, they often scale poorly due to low current densities, faradic efficiencies, and the use of hazardous solvents. Companies such as the Electrosynthesis Company are uniquely positioned to help bridge that gap thanks to their deep understanding of both research lab, and industrial plant processes.

Full Article: Exploring the Reach of Organic Electrochemistry