Controlled Substrate Transport to Electrocatalyst Active Sites for Enhanced Selectivity in the Carbon Dioxide Reduction Reaction

Liu, Yingshuo; Leung, Kwan Yee; Michaud, Samuel E.; Soucy, Taylor L.; McCrory, Charles C. L.

doi:10.1080/02603594.2019.1628025

Cited by 20 publications

(23 citation statements)

References 139 publications

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“…In this scheme, CO2 is expected to diffuse through the selective membrane Figure 6. Schematic illustrating gas and ion transport in the membrane-coated electrode (MCE) configuration, adapted from the conventional gas diffusion electrodes (GDE) configuration proposed by Liu et al [15].…”

Section: Membrane-coated Electrodes In the Framework Of Co 2 Electrormentioning

confidence: 99%

“…Therefore the interest of CO 2 R researchers of developing systems that can tune up the transport of CO 2 and ions to the catalyst active sites [15]. The mass transport limitation on continuous flow electrochemical cells attempted so far by applying high-pressure, gas diffusion electrodes (GDEs) and metal catalyst-coated ion-exchange membrane electrodes can be addressed by according a more active role to the membrane than just as separation barrier [16,17].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, statistical analysis of the large amount of dispersed experimental works has been applied to develop decision trees that help to determine the significance of the main variables influencing electrochemical reactor viability in CO2 conversion, such as Faradaic efficiency (FE), production rate, and the selectivity to a particular product [13], which in complex heterogeneous electrodes may differ from FE [14]. Therefore the interest of CO2R researchers of developing systems that can tune up the transport of CO2 and ions to the catalyst active sites [15]. The mass transport limitation on continuous flow electrochemical cells attempted so far by applying high-pressure, gas diffusion electrodes (GDEs) and metal catalyst-coated ion-exchange membrane electrodes can be addressed by according a more active role to the membrane than just as separation barrier [16,17].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An Analysis of Research on Membrane-Coated Electrodes in the 2001–2019 Period: Potential Application to CO2 Capture and Utilization

et al. 2020

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The chemistry and electrochemistry basic fields have been active for the last two decades of the past century studying how the modification of the electrodes’ surface by coating with conductive thin films enhances their electrocatalytic activity and sensitivity. In light of the development of alternative sustainable ways of energy storage and carbon dioxide conversion by electrochemical reduction, these research studies are starting to jump into the 21st century to more applied fields such as chemical engineering, energy and environmental science, and engineering. The huge amount of literature on experimental works dealing with the development of CO2 electroreduction processes addresses electrocatalyst development and reactor configurations. Membranes can help with understanding and controlling the mass transport limitations of current electrodes as well as leading to novel reactor designs. The present work makes use of a bibliometric analysis directed to the papers published in the 21st century on membrane-coated electrodes and electrocatalysts to enhance the electrochemical reactor performance and their potential in the urgent issue of carbon dioxide capture and utilization.

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Section: Membrane-coated Electrodes In the Framework Of Co 2 Electrormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An Analysis of Research on Membrane-Coated Electrodes in the 2001–2019 Period: Potential Application to CO2 Capture and Utilization

et al. 2020

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“…This avoids the diffusion barrier created by adsorption and inactivating the electrocatalyst, modulating pH and access to active sites by anticipating that rapid transport to the electrode th rough enhances sensitivity by modulating pH and CO2 concentration near the active sites. [49,50] Encapsulation of metal particles into conductive polymers has enhanced the activity of Cu2O electrocatalysts on the reduction of CO2 even in aqueous media [25,51]. Figure 7.…”

Section: Membrane-coated Electrodes In the Framework Of Co2 Electrorementioning

confidence: 99%

“…Sche matic illustrating gas and ion transport in the MCE configuration, adapted from the conve ntional GDE configuration proposed by Liu e t al. [50].…”

Section: Membrane-coated Electrodes In the Framework Of Co2 Electrorementioning

confidence: 99%

A Bibliometric Analysis of Research on Membrane Coated Electrodes in the 2001-2019 Period: Potential Application to CO2 Capture and Utilization

Casado-Coterillo¹,

Marcos-Madrazo²,

Garea³

et al. 2020

Preprint

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The chemistry and electrochemistry basic fields have been active since the last two decades of the past century studying how surface modification of electrodes by coating with conductive films enhances their activity and performance. In the light of the development of alternative sustainable ways of energy storage and carbon dioxide conversion by electrochemical processes, these research studies have jumped in the 21st century to more applied fields such as chemical engineering, energy and environmental science and engineering. The huge amount of literature on experimental works dealing with the development of CO2 electroreduction processes addresses electrocatalyst development. Membranes can help understanding and controlling the mass transport limitations of current electrodes and reactors designs. The present bibliometric review addresses the papers published in the 21st century regarding membrane coated electrodes and electrocatalysts to enhance electrochemical reactor performance and viability with a special focus on the urgent issue of carbon dioxide capture and utilization.

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Simulation‐based guidance for improving CO2${\rm CO}_{2}$ reduction on silver gas diffusion electrodes

Heßelmann

Bräsel

Keller

et al. 2022

Electrochemical Science Adv

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The reduction of CO2${\rm CO}_{2}$ in an electrochemical reactor using electrical energy is a promising approach to implement a more sustainable carbon economy and to replace fossil fuels with renewable carbon sources. Conventionally used solid plate electrodes are limited by poor mass transport of the reactants. Gas diffusion electrodes (GDEs) can overcome this limitation and have gained industrial relevance during the last decades. A comprehensive understanding of transport and conversion phenomena within such porous electrodes is not yet well developed. Here, we report a one‐dimensional steady state model of the GDE to investigate the influence of relevant operational parameters and GDE properties on CO2${\rm CO}_{2}$ reduction. The results indicate the importance of controlling the local reaction environment, that is, the reactant concentration and the pH value, by tuning the electrolyte and gas composition, and flow rate as well as the catalyst layer properties.

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Controlled Substrate Transport to Electrocatalyst Active Sites for Enhanced Selectivity in the Carbon Dioxide Reduction Reaction

Cited by 20 publications

References 139 publications

An Analysis of Research on Membrane-Coated Electrodes in the 2001–2019 Period: Potential Application to CO2 Capture and Utilization

An Analysis of Research on Membrane-Coated Electrodes in the 2001–2019 Period: Potential Application to CO2 Capture and Utilization

A Bibliometric Analysis of Research on Membrane Coated Electrodes in the 2001-2019 Period: Potential Application to CO2 Capture and Utilization

Simulation‐based guidance for improving CO2${\rm CO}_{2}$ reduction on silver gas diffusion electrodes

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