Title
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3D-printed electrodes with improved mass transport properties
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Author
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Abstract
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Today's electrochemical reactor design is a less developed discipline as compared to electrocatalytic synthesis. Although catalysts show increasing conversion rates, they are often operated without measures for the reduction of concentration polarization effects. As a result, a stagnant boundary layer forms at the electrode-electrolyte interface. This stagnant boundary layer presents an additional voltage drop and reduces the energy efficiency. It is generally accepted that this phenomenon is caused by a combination of fast electrode reactions and slow diffusion of the reacting species. Our earlier work demonstrated the potential of non-conducting static mixers to reduce concentration polarization effects. However, there are few studies on conductive static mixers applied as electrodes. In this study, we present a new concept of additive manufactured flow through electrode mixers. Our electrode geometry combines a high surface area with mixing properties, diminishing concentration polarization effects of transport-limited reactions. Mass transport properties of these conductive static mixers are evaluated in an additive manufactured electrochemical reactor under controlled conditions by applying the limiting-current method. |
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Language
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English
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Source (journal)
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ChemElectroChem. - Place of publication unknown, 2013, currens
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Publication
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Place of publication unknown
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Wiley
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2017
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ISSN
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2196-0216
[online]
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DOI
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10.1002/CELC.201700662
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Volume/pages
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4
:12
(2017)
, p. 3309-3313
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ISI
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000419269000038
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Full text (Publisher's DOI)
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Full text (open access)
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Full text (publisher's version - intranet only)
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