CO 2  reduction to alcohols in a polymer electrolyte membrane co-electrolysis cell operating at low potentials

Sebastián, David; Palella, Alessandra; Baglio, V.; Spadaro, Lorenzo; Siracusano, Salvatore; Negro, Piero; Niccoli, Francesca; Aricò, A.S.

doi:10.1016/j.electacta.2017.04.119

Cited by 47 publications

(32 citation statements)

References 58 publications

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“…S4 shows gas chromatograms of the cathodic output gas from the cell in which the cathode potential was held at 0.20 V (vs. RHE). Based on the results obtained using ameionization and thermal-conductivity detectors, only CH 4 was produced during CO 2 reduction at at Pt-Ru/C using an MEA 34 , the rate of CH 4 production in this study is higher.…”

Section: Effect Of Co 2 Concentration On Ch 4 Yieldmentioning

confidence: 71%

H2-CO2 polymer electrolyte fuel cell that generates power while evolving CH4 at the Pt0.8Ru0.2/C cathode

Matsuda

Niitsuma

Yoshida

et al. 2020

Preprint

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Generating electric power using CO2 as a reactant is challenging because the electroreduction of CO2 usually requires a large overpotential. Herein, we report the design and development of a polymer electrolyte fuel cell driven by feeding H2 and CO2 to the anode (Pt/C) and cathode (Pt0.8Ru0.2/C), respectively, based on their theoretical electrode potentials. Pt-Ru/C is a promising electrocatalysts for CO2 reduction at a low overpotential; consequently, CH4 is continuously produced through CO2 reduction with an enhanced faradaic efficiency (18.2%) and without an overpotential (at 0.20 V vs. RHE) was achieved when dilute CO2 is fed at a cell temperature of 40 °C. Significantly, the cell generated electric power (0.14 mW·cm− 2) while simultaneously yielding CH4 at 86.3 µmol·g− 1·min− 1. These results show that a H2-CO2 fuel cell is a promising technology for promoting the carbon capture and utilization (CCU) strategy.

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Section: Effect Of Co 2 Concentration On Ch 4 Yieldmentioning

confidence: 71%

H2-CO2 polymer electrolyte fuel cell that generates power while evolving CH4 at the Pt0.8Ru0.2/C cathode

Matsuda

Niitsuma

Yoshida

et al. 2020

Preprint

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“…The decreasing FE to methanol with increasing potential and current density at higher overpotentials can be allocated to the HER as the dominating reaction. [48] After Ru-based CCM [53] Gas phase 0.46 0.90 0.93 CuÀ TiO 2 /NG based GDE [54] Near neutral (pH = 6.8) À 0.20 À 0.06 19.5 Cu-doped CNTs based GDE [55] Alkaline (pH = 9) 0.28 À 4.75 47.4 CuÀ Bi MOFs based GDE [15] Near neutral (pH = 6.8) blend solution causing densification of the membrane overlayer upon casting and solvent evaporation, as well as the largest water transport reported elsewhere. These results are attributed to the higher accessibility of CO 2 to the catalyst in the uncoated GDE, and confirmed that the membrane over-layer was posing an additional resistance to transport.…”

Section: Electrochemical Reduction Of Comentioning

confidence: 99%

“…Ru-based CCM [53] Gas phase 0.46 0.90 0.93 CuÀ TiO 2 /NG based GDE [54] Near neutral (pH = 6.8) À 0.20 À 0.06 19.5 Cu-doped CNTs based GDE [55] Alkaline (pH = 9) 0.28 À 4.75 47.4 CuÀ Bi MOFs based GDE [15] Near neutral (pH = blend solution causing densification of the membrane overlayer upon casting and solvent evaporation, as well as the largest water transport reported elsewhere. [48] Therefore, this Cu/CS : PVA membrane layer generated the highest current densities generated of all MCE in Table 2, but the catalyst in metallic form seemed to be less accessible for CO 2 and its ionic forms, so the methanol production dropped, in favor of HER as dominant reaction.…”

Section: Electrodementioning

confidence: 99%

Sustainable Membrane‐Coated Electrodes for CO₂ Electroreduction to Methanol in Alkaline Media

2019

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CO 2 electroreduction has high potential to combine carbon capture utilization and energy storage from renewable sources. The key challenge is the construction of highly efficient electrodes giving optimal CO 2 conversion to high-value products. In this regard, research on electrode structures remains as an important task to face. Despite the advancements in gas diffusion electrodes (GDEs) to facilitate CO 2 transfer and electrode efficiency, the catalyst is still vulnerable to be swept by the gas and liquid electrolyte, reducing the stability. We report the fabrication of novel membrane-coated electrodes (MCEs), by coating an anion exchange membrane over a copper (Cu) : chitosan (CS) catalyst layer onto the carbon paper. CS and poly(vinyl) alcohol (PVA) were chosen for membrane preparation and catalyst binder, where Cu was embedded in the polymer matrix as nanoparticles or ion-exchanged in a layered stannosilicate or zeolite Y, to improve their hydrophilic, conductive, mechanical, and environmentally-friendly properties considered relevant to the sustainability of the electrode fabrication and performance. The intimate connection between the CS : PVA polymer membrane over-layer and the CS/Cu catalytic layer protects the MCEs from material losses, enhancing the CO 2 conversion to methanol, even in high alkaline medium. A maximum Faraday Efficiency to methanol of 68.05 % was achieved for the 10CuY/CS : PVA membrane over-layer.

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“…Achieving a maximum Faradaic efficiency (200%) is realizable since the passed electric charge is primarily used twice. However, in CO2 reduction, the conventional approach for up-scaled reactors is the coupling to water oxidation (oxygen evolution reaction, OER) [32][33][34][35][36] .…”

Section: Principlesmentioning

confidence: 99%

A review on the state-of-the-art advances for CO2 electro-chemical reduction using metal complex molecular catalysts

et al. 2019

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Significantly, global warming which is caused by CO2 emission and energy shortage are global problems resulting from artificial photosynthesis because it required many functions (light harvesting, Z water, and oxidation scheme). Therefore, photocatalytic systems development for CO2 reduction is germane in this field. Metal complexes molecular catalyst have become prevalent homogeneous catalysts for carbon dioxide (CO2) photocatalytic reduction since it was initially known as CO2 reduction catalysts in the 70s and the 80s, while utmost part involved macrocyclic cobalt(II) and nickel(II) complexes. This review article presents a broad understanding on some active catalysts recently reported as a metal complex molecular catalytic schemes for CO2 reduction, alongside catalytic activity, stability, selectivity under electro-reduction, and photoreduction circumstances. The progress of in situ spectroelectrochemical methods, typically supported via theoretical calculations, helped to access this know-how by providing information which enabled researchers to acquire more in-depth perception into unveiling the catalytic reaction and mechanisms intermediates.

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CO 2 reduction to alcohols in a polymer electrolyte membrane co-electrolysis cell operating at low potentials

Cited by 47 publications

References 58 publications

H2-CO2 polymer electrolyte fuel cell that generates power while evolving CH4 at the Pt0.8Ru0.2/C cathode

H2-CO2 polymer electrolyte fuel cell that generates power while evolving CH4 at the Pt0.8Ru0.2/C cathode

Sustainable Membrane‐Coated Electrodes for CO₂ Electroreduction to Methanol in Alkaline Media

A review on the state-of-the-art advances for CO2 electro-chemical reduction using metal complex molecular catalysts

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CO 2 reduction to alcohols in a polymer electrolyte membrane co-electrolysis cell operating at low potentials

Cited by 47 publications

References 58 publications

H2-CO2 polymer electrolyte fuel cell that generates power while evolving CH4 at the Pt0.8Ru0.2/C cathode

H2-CO2 polymer electrolyte fuel cell that generates power while evolving CH4 at the Pt0.8Ru0.2/C cathode

Sustainable Membrane‐Coated Electrodes for CO2 Electroreduction to Methanol in Alkaline Media

A review on the state-of-the-art advances for CO2 electro-chemical reduction using metal complex molecular catalysts

Contact Info

Product

Resources

About

Sustainable Membrane‐Coated Electrodes for CO₂ Electroreduction to Methanol in Alkaline Media