Electrocatalytic reduction of CO2 to useful chemicals on copper nanoparticles

Dongare, Saudagar; Singh, Neetu; Bhunia, Haripada

doi:10.1016/j.apsusc.2020.148020

Cited by 38 publications

(27 citation statements)

References 48 publications

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“…Reports are also available on doping different heteroatoms in Cu for efficient ECO 2 R to ethanol production. As previously stated, the oxidation state of Cu catalyst plays significant role in multi-carbon product selectivity during ECO 2 R. At low overpotentials, metallic Cu produces CO and HCOOH as the major products, [95] and CH 4 or C 2 H 4 at higher over-potentials. [133] However, CuO and Cu 2 O are commonly reported to produce ethanol with high efficiency.…”

Section: Composition Of Catalystmentioning

confidence: 79%

“…Furthermore, cations (like Na + , K + ) that move through the membrane accumulate in the cathode compartment, and this accumulation will further decrease the CO 2 solubility and ECO 2 R selectivity during longer duration. [95,127] To solve these issues, the ECO 2 R was performed in continuous flow reactor assembly by many groups [61,64,119,123,155] for its industrial applications. As shown in Figure 7b, continuous flow reactor includes current collectors for both electrodes, chambers for electrolytes, membrane, and GDEs.…”

Section: Electrochemical Cellsmentioning

confidence: 99%

“…[105] In ECO 2 R, the formation of the CO 2 * intermediate has been considered as a rate-determining step. [19] As a result, one of the primary functions of these electro-catalysts is to stabilize this CO 2 * intermediate in order to achieve high energy efficiency during ECO 2 R. As compared to untreated metallic Cu, [95,96] the oxide-derived Cu catalysts [32,41,58] display better catalytic efficiency. For example, metallic Cu shows a FE of 9.7 % for ethanol at À 1.05 V vs. RHE [36] in comparison to several studies on oxide-derived Cu catalyst indicate an improved catalytic activity (FE of 35 % for C 2 H 5 OH) with a current density (CD) of 11.8 mA cm À 2 at À 1.0 V (vs. RHE).…”

Section: Metal-based Electrodes/catalysts222 Monometallic Catalystsmentioning

confidence: 99%

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Electrochemical Reduction of Carbon Dioxide to Ethanol: A Review

et al. 2021

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Converting CO2 to renewable fuels via clean and cost‐effective chemical processes is very desirable for the sustainable development of green civilization. The electrochemical CO2 reduction (ECO2R) to ethanol using renewable energy is a green and effective strategy for addressing global warming and energy shortage issues. But, simultaneous generation of multiple gaseous & liquid products and low catalytic activities are limiting the technology‘s practical use in the short term. In this study, recent scientific developments in ECO2R for selective production of ethanol are reviewed which include both theoretical and experimental aspects. The reported electro‐catalysts are categorized into different groups and the performance of these electro‐catalysts/electrodes is summarized. The effect of electro‐catalysts’ composition & its morphology, applied potential, type of electrolyte, metal loading, reactor configuration, etc. are comprehensively summarized. Furthermore, the present status & challenges and future prospects are presented to help in future design and planning of high‐performance electro‐catalysts for ethanol.

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Section: Composition Of Catalystmentioning

confidence: 79%

Section: Electrochemical Cellsmentioning

confidence: 99%

Section: Metal-based Electrodes/catalysts222 Monometallic Catalystsmentioning

confidence: 99%

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Electrochemical Reduction of Carbon Dioxide to Ethanol: A Review

et al. 2021

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“…Copper is an important CO 2 reduction catalyst due to its unique properties; until 2018, it was the only metal reported capable of generating higher value products than carbon monoxide (CO) and formate from CO 2 in appreciable quantities [12][13][14][15]. Therefore, the use of copper as an electrocatalyst for CO 2 reductions is widely extended, employing solid copper surfaces [16][17][18][19], copper foil [20][21][22][23], copper nanoparticles [24][25][26], copper nanocrystals [27][28][29], or hollow copper metal-organic framework (MOF) [30][31][32]. However, frequently, they are sensitive to minor contaminants present in water or bicarbonate solution [33][34][35][36], requiring extensive purification of both the copper surface and reaction medium before electrocatalysis.…”

Section: Introductionmentioning

confidence: 99%

Investigation into the Re-Arrangement of Copper Foams Pre- and Post-CO2 Electrocatalysis

et al. 2021

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The utilization of carbon dioxide is a major incentive for the growing field of carbon capture. Carbon dioxide could be an abundant building block to generate higher-value chemical products. Herein, we fabricated a porous copper electrode capable of catalyzing the reduction of carbon dioxide into higher-value products, such as ethylene, ethanol and propanol. We investigated the formation of the foams under different conditions, not only analyzing their morphological and crystal structure, but also documenting their performance as a catalyst. In particular, we studied the response of the foams to CO2 electrolysis, including the effect of urea as a potential additive to enhance CO2 catalysis. Before electrolysis, the pristine and urea-modified foam copper electrodes consisted of a mixture of cuboctahedra and dendrites. After 35 min of electrolysis, the cuboctahedra and dendrites underwent structural rearrangement affecting catalysis performance. We found that alterations in the morphology, crystallinity and surface composition of the catalyst were conducive to the deactivation of the copper foams.

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“…Copper is an important CO2 reduction catalyst due to its unique properties; until 2018 it was the only metal reported capable of generating higher value products than carbon monoxide (CO) and formate from CO2 in appreciable quantities [12][13][14][15]. Therefore, the use of copper as an electrocatalyst for CO2 reductions is widely extended, employing solid copper surfaces [16][17][18][19], copper foil [20][21][22][23], copper nanoparticles [24][25][26], copper nanocrystals [27][28][29], or hollow copper metal-organic framework (MOF) [30][31][32]. However, frequently, they are sensitive to minor contaminants present in water or bicarbonate solution [33][34][35][36], requiring extensive purification of both the copper surface and reaction medium before electrocatalysis.…”

Section: Introductionmentioning

confidence: 99%

Investigation into the Re-Arrangement of Copper Foams Pre- and Post-CO2 Electrocatalysis

Rudd¹,

Herrnandez-Aldave²,

Kazimierska³

et al. 2021

Preprint

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The utilization of carbon dioxide is a major incentive for the growing field of carbon capture. Carbon dioxide could be an abundant building block to generate higher value products. Herein, we fabricated a porous copper electrode capable of catalyzing the reduction of carbon dioxide into higher value products such as ethylene, ethanol, and propanol. We investigated the formation of the foams under different conditions, not only analyzing their morphological and crystal structure but also documenting their performance as a catalyst. In particular, we studied the response of the foams to CO<sub>2</sub> electrolysis, including the effect of urea as a potential additive to enhance CO<sub>2</sub> catalysis. Before electrolysis, the pristine and urea-modified foam copper electrodes consisted of a mixture of cuboctahedra and dendrites. After 35-minute electrolysis, the cuboctahedra and dendrites underwent structural rearrangement affecting catalysis performance. We found that alterations in the morphology, crystallinity, and surface composition of the catalyst were conducive to the deactivation of the copper foams.

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Electrocatalytic reduction of CO2 to useful chemicals on copper nanoparticles

Cited by 38 publications

References 48 publications

Electrochemical Reduction of Carbon Dioxide to Ethanol: A Review

Electrochemical Reduction of Carbon Dioxide to Ethanol: A Review

Investigation into the Re-Arrangement of Copper Foams Pre- and Post-CO2 Electrocatalysis

Investigation into the Re-Arrangement of Copper Foams Pre- and Post-CO2 Electrocatalysis

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