High efficiency graphene/Cu 2 O electrode for the electrochemical reduction of carbon dioxide to ethanol

Geioushy, Ramadan A.; Khaled, Mazen; Hakeem, Abbas Saeed; Alhooshani, Khalid; Basheer, Chanbasha

doi:10.1016/j.jelechem.2016.12.029

Cited by 61 publications

(28 citation statements)

References 40 publications

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“…To increase the efficiency and the selectivity for the CO 2 RR, various kinds of catalysts are needed. rGO has many advantages in terms of efficiency, not only because of the unique electrical and physical properties but also rGO is a support material that can be combined with many kinds of electroactive materials for the CO 2 RR . Therefore many studies have been conducted with rGO‐based catalysts for the electrochemical reduction of CO 2 .…”

Section: Electrochemical Co2 Reductionmentioning

confidence: 99%

“…K, Faradaic efficiency of CO production (gray bar) and current density (based on geometric surface area) vs applied potential (black dot, total current; red dot, CO; blue dot, H 2 ). H‐K, Reprinted from Geioushy et al, Copyright 2018, with permission from WILEY‐VCH. EDA, ethylenediamine; HA, hexylamine; HRTEM, high‐resolution transmission electron microscopy; LSV, linear sweep voltammetry; NP, nanoparticle; OLA, oleylamine; PA, propylamine; PEI, polyethyleneimine; rGO, reduced graphene oxide; RHE, reversible hydrogen electrode; SEM, scanning electron microscope [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Electrochemical Co2 Reductionmentioning

confidence: 99%

“…Also, it is reported that the electrocatalytic activity for CO 2 reduction to ethanol is improved when Cu 2 O is combined with rGO support material . The high electrical conductivity of rGO increased the available surface area of Cu 2 O, resulting in the larger current density.…”

Section: Electrochemical Co2 Reductionmentioning

confidence: 99%

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Reduced graphene oxide‐based materials for electrochemical energy conversion reactions

et al. 2019

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There have been ever-growing demands to develop advanced electrocatalysts for renewable energy conversion over the past decade. As a promising platform for advanced electrocatalysts, reduced graphene oxide (rGO) has attracted substantial research interests in a variety of electrochemical energy conversion reactions. Its versatile utility is mainly attributed to unique physical and chemical properties, such as high specific surface area, tunable electronic structure, and the feasibility of structural modification and functionalization. Here, a comprehensive discussion is provided upon recent advances in the material preparation, characterization, and the catalytic activity of rGO-based electrocatalysts for various electrochemical energy conversion reactions (water splitting, CO 2 reduction reaction, N 2 reduction reaction, and O 2 reduction reaction). Major advantages of rGO and the related challenges for enhancing their catalytic performance are addressed. K E Y W O R D S

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Section: Electrochemical Co2 Reductionmentioning

confidence: 99%

Section: Electrochemical Co2 Reductionmentioning

confidence: 99%

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Reduced graphene oxide‐based materials for electrochemical energy conversion reactions

et al. 2019

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“…Faradaic efficiency (FE) describes the efficiency of charge (electrons) that are transferred in a system facilitating an electrochemical reaction [Eq. ]

true FE (%) of the product = (e_{output} / e_{input}) \times 100

…”

Section: Methodsmentioning

confidence: 99%

“…Recent researches also focus on limiting the selectivity of CO 2 reduction reaction and reducing the overpotential of methane and ethylene formation. In order to improve the electrocatalytic performance of copper, their studies are not only exploring the particle size, surface roughness, and ability to catalyze, but also the formation of Au, Zn, Cd, Ag, S, C, N, P and graphene composites . In their works, the surface structure largely affects the CO 2 reduction in terms of the selectivity of hydrocarbon production .…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Reduction of CO₂ into C1 and C2 Hydrocarbons Using Dendritic Cu and Cu₂O Electrodes

et al. 2020

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Electroreduction of carbon dioxide to C1 and C2 hydrocarbons has emerged as an efficient way to utilize carbon dioxide and maintain the broken carbon‐cycle in the environment. Copper is a promising catalyst for such a purpose. The selectivity and stability of hydrocarbon production is still a challenge. Here we propose a simple one‐step electro‐deposition of copper followed by annealing in air, in which the dendritic structures of Cu and Cu2O electrodes have been prepared, to enhance the copper‐electrode properties in terms of morphology, selectivity, stability, and electrochemical performance. The selectivity of ethylene using modified dendritic Cu2O electrodes remains stable (from 19.21 % to 18.01 %) after the course of over 10 hours by applying a constant potential of −1.4 V. Our finding suggests a promising lead for the design of practical catalytic electrodes for the fuel synthesis with electrochemical CO2 reduction.

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Electrochemical Carbon Dioxide Reduction Reaction

Zhu¹,

Wang²,

Gao³

et al. 2022

Photo‐ and Electro‐Catalytic Processes

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High efficiency graphene/Cu 2 O electrode for the electrochemical reduction of carbon dioxide to ethanol

Cited by 61 publications

References 40 publications

Reduced graphene oxide‐based materials for electrochemical energy conversion reactions

Reduced graphene oxide‐based materials for electrochemical energy conversion reactions

Electrochemical Reduction of CO₂ into C1 and C2 Hydrocarbons Using Dendritic Cu and Cu₂O Electrodes

Electrochemical Carbon Dioxide Reduction Reaction

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High efficiency graphene/Cu 2 O electrode for the electrochemical reduction of carbon dioxide to ethanol

Cited by 61 publications

References 40 publications

Reduced graphene oxide‐based materials for electrochemical energy conversion reactions

Reduced graphene oxide‐based materials for electrochemical energy conversion reactions

Electrochemical Reduction of CO2 into C1 and C2 Hydrocarbons Using Dendritic Cu and Cu2O Electrodes

Electrochemical Carbon Dioxide Reduction Reaction

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Product

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Electrochemical Reduction of CO₂ into C1 and C2 Hydrocarbons Using Dendritic Cu and Cu₂O Electrodes