Deciphering mass transport behavior in membrane electrode assembly by manipulating porous structures of atomically dispersed Metal-Nx catalysts for High-Efficiency electrochemical CO2 conversion

Lee, Seung–Hyun; Jeon, Ye Eun; Lee, Seonggyu; Lee, Wonhee; Kim, Seongbeen; Choi, Jaeryung; Park, Jin‐Kyu; Han, Jeong Woo; Ko, You Na; Kim, Young Eun; Park, Jin-Won; Kim, Jungbae; Park, Ki Tae; Lee, Jinwoo

doi:10.1016/j.cej.2023.142593

Cited by 7 publications

(6 citation statements)

References 75 publications

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“…As in the previous H-cell experiments, a Ni–N–C electrocatalyst was used to produce CO in a flow cell . A stable voltage plateau is observed in Figure b when a constant current is applied at 8 mA cm –2 .…”

mentioning

confidence: 69%

Anode-less Hybrid Na–CO₂ Battery with Sodium Harvesting from Seawater for Both Electricity Storage and Various Chemical Production

Kim,

Lee,

Kim

et al. 2023

ACS Energy Lett.

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mentioning

confidence: 69%

Anode-less Hybrid Na–CO₂ Battery with Sodium Harvesting from Seawater for Both Electricity Storage and Various Chemical Production

Kim,

Lee,

Kim

et al. 2023

ACS Energy Lett.

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“…A recent study linked the porous structure of different NiNC catalysts with their catalytic performance. 48 The authors found that a MEA base on the mesoporous material had the best catalytic performance due to an appropriate pore size that facilitated mass transport. More importantly, the optimized catalysts showed good stability during 50 h at 100 mAcm −2 with a CO FE above 95%.…”

Section: Mnc Catalystsmentioning

confidence: 99%

“…Furthermore, the role that other material properties play in determining the long-term stability of the catalyst should be explored. A recent study linked the porous structure of different NiNC catalysts with their catalytic performance . The authors found that a MEA base on the mesoporous material had the best catalytic performance due to an appropriate pore size that facilitated mass transport.…”

Section: Stable Co2rr Catalystsmentioning

confidence: 99%

Review on Long-Term Stability of Electrochemical CO₂ Reduction

Álvarez-Gómez,

Varela

2023

Energy Fuels

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The electrochemical CO 2 reduction reaction (CO2RR) is a promising technology for converting waste CO 2 into synthetic fuels and carbon-based chemicals using renewable electricity. Most efforts have been dedicated to improving the selectivity at high current densities bringing this process closer to commercial application. However, the long-term stability of the process has received considerably less attention. In this review, we present the progress made on long-term CO 2 electrolysis to bring attention to the crucial piece of the puzzle. While Ag-based electrolyzers for CO production have met the desired durability requirements, this is not yet the case for other catalysts. Therefore, we also review the possible degradation pathways affecting both the catalyst material and the electrolyzer and address different strategies to mitigate them.

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“…It enables the conversion of CO 2 into value-added products without additional emissions (Figure 1) [3][4][5][6]. Due to their high selectivity (>90%) and activity (>100 mA cm −2 ) for industrial applications, the cost of certain CO 2 RR products, particularly C 1 chemicals such as CO and formic acid, has become economically competitive with traditional chemical processes [7][8][9][10][11][12]. This trend has been further supported by the decreasing price of renewable electricity.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress in Electrocatalytic CO2 Reduction to Pure Formic Acid Using a Solid-State Electrolyte Device

et al. 2023

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The electrocatalytic CO2 reduction reaction (CO2RR) to formic acid has gained significant attention as a potential environmentally friendly approach to reducing CO2 emissions and producing carbon-neutral liquid fuels. However, several challenges must be addressed to achieve the production of high-purity and high-concentration formic acid through CO2RR. One major challenge is the formation of a formate mixture instead of pure formic acid in conventional reactors. This requires costly downstream purification and concentration processes to obtain pure formic acid. To overcome this problem, a three-compartment reactor design has been proposed where a solid-state electrolyte (SSE) is inserted between the anode and cathode compartments to recover pure formic acid directly. This reactor design involves the use of an anion exchange membrane (AEM) and a cation exchange membrane (CEM) to separate the anode and cathode compartments, and a center compartment filled with high-conductivity SSE to minimize ohmic resistance. Several studies have implemented this reactor design for continuous CO2RR and have reported remarkable improvements in the concentration and purity of the formic acid product. In this review, we summarize the recent progress of the SSE reactor design for CO2RR to produce pure formic acid (HCOOH) and propose further research to scale up this technology for industrial-scale applications in the future.

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Deciphering mass transport behavior in membrane electrode assembly by manipulating porous structures of atomically dispersed Metal-Nx catalysts for High-Efficiency electrochemical CO2 conversion

Cited by 7 publications

References 75 publications

Anode-less Hybrid Na–CO₂ Battery with Sodium Harvesting from Seawater for Both Electricity Storage and Various Chemical Production

Anode-less Hybrid Na–CO₂ Battery with Sodium Harvesting from Seawater for Both Electricity Storage and Various Chemical Production

Review on Long-Term Stability of Electrochemical CO₂ Reduction

Recent Progress in Electrocatalytic CO2 Reduction to Pure Formic Acid Using a Solid-State Electrolyte Device

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Deciphering mass transport behavior in membrane electrode assembly by manipulating porous structures of atomically dispersed Metal-Nx catalysts for High-Efficiency electrochemical CO2 conversion

Cited by 7 publications

References 75 publications

Anode-less Hybrid Na–CO2 Battery with Sodium Harvesting from Seawater for Both Electricity Storage and Various Chemical Production

Anode-less Hybrid Na–CO2 Battery with Sodium Harvesting from Seawater for Both Electricity Storage and Various Chemical Production

Review on Long-Term Stability of Electrochemical CO2 Reduction

Recent Progress in Electrocatalytic CO2 Reduction to Pure Formic Acid Using a Solid-State Electrolyte Device

Contact Info

Product

Resources

About

Anode-less Hybrid Na–CO₂ Battery with Sodium Harvesting from Seawater for Both Electricity Storage and Various Chemical Production

Anode-less Hybrid Na–CO₂ Battery with Sodium Harvesting from Seawater for Both Electricity Storage and Various Chemical Production

Review on Long-Term Stability of Electrochemical CO₂ Reduction