Nitrogen-doped mesoporous carbon supported CuSb for electroreduction of CO<sub>2</sub>

Hou, Yue; Jiang, Chengjie; Wang, Ying; Zhu, Jingwei; Lu, Jia‐Xing; Wang, Huan

doi:10.1039/d2ra01893d

Cited by 5 publications

(1 citation statement)

References 31 publications

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“…The Cu-Sb-based materials are successfully entering the realms of the green and renewable energy technologies. They are effective as catalysts for electrochemical CO 2 reduction, achieving a good CO selectivity of 85%-90% [1][2][3][4][5][6], as well as enhancing the photoelectrocatalytic performance of BiVO 4 for photoelectrochemical splitting water technology [7]. A Cu 2 Sb layer was tested as a sensor layer catalyzing the oxidation of antibiotic drugs [8].…”

Section: Introductionmentioning

confidence: 99%

Characterization and Electrochemical Investigation of Heterogeneous Sb-Cu Coatings

Kostov,

Tzaneva

2023

Coatings

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In recent years, Cu-Sb-based alloys have been considered promising materials for various green applications; for instance, they can serve as catalysts for CO2 reduction, anodic material for metal-ion batteries, and a light-absorbing layer in solar cell. Our research is focused on the electrodeposition of antimony-copper alloy layers with copper content between 18–30 wt.%. The layers were observed by scanning, atomic force and transmission electron spectroscopies. Their phase structure, roughness, and hardness were also determined. The electrochemical properties were investigated by using electrochemical impedance spectroscopy and potentiodynamic polarization tests in 0.5 M sulfuric acid. Decreasing the copper content leads to an increase in chemical and morphological heterogeneity and an increase in the roughness from 1.74 to 2.94 μm due to the separation of antimony crystal clusters protruding above the surface but does not significantly affect the hardness and electrochemical behavior of the layers. Copper is recorded only in the form of the Cu2Sb phase. The corrosion current density and potentials of the layers are close to those of pure antimony (about 20 µA cm−2 and about −30 mV vs. Ag/AgCl). The highly porous structure obtained after anodic polarization seems suitable for catalytic purposes.

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Section: Introductionmentioning

confidence: 99%

Characterization and Electrochemical Investigation of Heterogeneous Sb-Cu Coatings

Kostov,

Tzaneva

2023

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Insights into Bimetallic Ag₂Cu₂O₃ Precatalyst for Electrochemical CO₂ Reduction to Ethanol

Wang,

Liu,

et al. 2024

ChemCatChem

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The electrochemical CO2 reduction reaction (CO2RR) into valuable chemicals represents an effective approach for realizing carbon neutralization goals. Copper oxide‐derived catalysts are particularly promising due to their tunable electronic structures. In this study, we focused on investigating the Ag2Cu2O3 model catalyst and a mixture of CuO and Ag2O with an identical metal molar ratio (denoted an M‐CuAgO). Electrochemical CO2RR tests revealed that Ag2Cu2O3 exhibited selectivity towards ethanol, while M‐CuAgO showed no selectivity towards multi‐carbon products. Characterizations of the post‐reaction materials showed differences in the specific crystal structures of the two catalysts. Further X‐ray photoelectron spectroscopy (XPS) analysis demonstrated that the Ag2Cu2O3 structure, after the reaction, facilitated the transfer of electrons from Cu to Ag, thereby promoting the formation of multi‐carbon products. This work underscores the significance of structural design in precatalysts and opens up new avenues for the design of high‐performance catalysts.

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Nanoengineering of metal-based electrocatalysts for carbon dioxide (CO2) reduction: A critical review

Pourebrahimi,

Pirooz,

Ahmadi

et al. 2023

Materials Today Physics

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Nitrogen-doped mesoporous carbon supported CuSb for electroreduction of CO₂

Abstract: CuSb anchored onto nitrogen-doped mesoporous carbon (CuSb/NMC) were prepared for electroreduction of CO2 to CH4, C2H4 and CO.

Cited by 5 publications

References 31 publications

Characterization and Electrochemical Investigation of Heterogeneous Sb-Cu Coatings

Characterization and Electrochemical Investigation of Heterogeneous Sb-Cu Coatings

Insights into Bimetallic Ag₂Cu₂O₃ Precatalyst for Electrochemical CO₂ Reduction to Ethanol

Nanoengineering of metal-based electrocatalysts for carbon dioxide (CO2) reduction: A critical review

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Nitrogen-doped mesoporous carbon supported CuSb for electroreduction of CO2

Abstract: CuSb anchored onto nitrogen-doped mesoporous carbon (CuSb/NMC) were prepared for electroreduction of CO2 to CH4, C2H4 and CO.

Cited by 5 publications

References 31 publications

Characterization and Electrochemical Investigation of Heterogeneous Sb-Cu Coatings

Characterization and Electrochemical Investigation of Heterogeneous Sb-Cu Coatings

Insights into Bimetallic Ag2Cu2O3 Precatalyst for Electrochemical CO2 Reduction to Ethanol

Nanoengineering of metal-based electrocatalysts for carbon dioxide (CO2) reduction: A critical review

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Product

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About

Nitrogen-doped mesoporous carbon supported CuSb for electroreduction of CO₂

Insights into Bimetallic Ag₂Cu₂O₃ Precatalyst for Electrochemical CO₂ Reduction to Ethanol