4.6 Article

An electrochemical oscillatory flow reactor with pillar array electrodes improving mass transfer in electrosynthesis

Journal

ELECTROCHIMICA ACTA
Volume 436, Issue -, Pages -

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2022.141435

Keywords

Oscillatory flow; electrochemistry; mass transfer; electrosynthesis; flow chemistry; green chemistry; Electrochemical; Oscillatory Flow Reactor; Synthetic Organic; increased productivity

Funding

  1. Flanders Innovation & Entrepreneurship
  2. Research Foundation - Flanders (FWO)
  3. [HBC.2020.2532]
  4. [76245]

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Synthetic organic electrochemistry has gained attention due to its environmental impact and energy demand advantages. Researchers propose a novel electrochemical reactor concept that improves mass transfer through oscillatory flow regime and conductive pillar field electrodes.
Synthetic organic electrochemistry, due to its advantages in terms of environmental impact and energy demand, has in the past years increasingly attracted researchers and companies. Consequently, a variety of (commercially available) electrochemical reactors have been developed. However, the focus remained on conducting funda-mental electrochemical research rather than on scalability and productivity. In this work, we present a novel electrochemical reactor concept by applying an oscillatory flow regime in a reactor fitted with conductive pillar field electrodes which serve both as electroactive interface and turbulence promotor. The use of this electro-chemical oscillatory flow reactor (eOFR) enabled the control and improvement of mass transfer, irrespective of residence time. This resulted in current densities rise up to 4-fold versus conventional steady state flow regimes and as such, this novel reactor bridges the gap between fundamental research and industrial applications.

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