Efficient electrocatalytic reduction of carbon dioxide to ethylene on copper–antimony bimetallic alloy catalyst

Jia, Shuaiqiang; Zhu, Qinggong; Wu, Haihong; Chu, Mengen; Han, Shitao; Feng, Ruting; Tu, Jinghui; Zhai, Jianxin; Han, Buxing

doi:10.1016/s1872-2067(20)63542-2

Cited by 43 publications

(25 citation statements)

References 48 publications

(39 reference statements)

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“…It is worth noting that the FE for C 2 H 4 formation is as high as 50.0%, substantially outperforming that of TPA (FE C2H4 % 0.0%), carbon paper (FE C2H4 % 0.0%), commercial Cu (FE C2H4 % 10.6%), Cu 2 O (FE C2H4 % 7.9%), CuO (FE C2H4 % 23.8%) and Cu(OH) 2 (FE C2H4 % 13.3%) (Figure 3(d)), and many recently reported Cu-based electrocatalysts at similar overpotentials (Figure 3(e) and Supplementary Table S1). The Tafel slope for C 2 H 4 production over Cu/TPA-DMF was measured to be about 160.9 mVÁdec À1 (Supplementary Figure S1) lower than defective CuO demonstrated in prior literature, 23 indicating that the as-synthesised catalyst has good reaction kinetics for ECR. The formation of the Ã CO intermediate for tandem catalysis on the surface of the catalyst appeared to control the reaction rate.…”

Section: Electrochemical Measurementsmentioning

confidence: 62%

“…In comparison to methane (CH 4 ) [11], carbon monoxide (CO) [12][13][14][15][16][17], or formic acid (HCOOH or formate [HCOO -] in alkaline electrolyte) [18,19] that are typically the major C 1 products of CO 2 reduction, converting CO 2 into C 2þ (encompassing two or more carbon atoms) hydrocarbons and oxygenates is desirable from both ecological and economic viewpoints [20][21][22][23]. Among various materials, Cu is the only active metal to electrochemically catalyse CO 2 into multi-electron transferred products because of its negative adsorption energy for CO Ã and positive adsorption energy for H Ã [24].…”

Section: Introductionmentioning

confidence: 99%

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Facile synthesis of two-dimensional copper terephthalate for efficient electrocatalytic CO₂ reduction to ethylene

Zhang

Tan

et al. 2021

Journal of Experimental Nanoscience

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Electrochemical CO 2 reduction (ECR) powered by renewable electricity is reckoned to provide an effective strategy to alleviate environmental issues and energy crisis, enabling a potential carbon neutral economy. To boost the ECR to fuels and value-added chemicals, the design of highly active and selective catalysts is important. In this study, we demonstrate facile ultrasonicationfacilitated synthesis of two-dimensional copper terephthalate for efficient ECR. High faradaic efficiencies (FEs) of up to 72.9% for hydrocarbons are achieved at a mild overpotential in an H-type cell. In particular, the FE for ethylene (C 2 H 4 ) formation approaches 50.0% at an applied potential of À1.1 V (vs. the reversible hydrogen electrode), outperforming commercial Cu, Cu 2 O, CuO, Cu(OH) 2 and many recently reported Cu-based materials. The C 2 H 4 partial geometric current density is as high as $6.0 mAÁcm À2 . This work offers a simple avenue to developing advanced electrocatalysts for converting CO 2 into high-value hydrocarbons.

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Section: Electrochemical Measurementsmentioning

confidence: 62%

Section: Introductionmentioning

confidence: 99%

Facile synthesis of two-dimensional copper terephthalate for efficient electrocatalytic CO₂ reduction to ethylene

Zhang

Tan

et al. 2021

Journal of Experimental Nanoscience

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“…Cu is a unique single metal catalyst that can promote the electrochemical reduction of CO2 to multicarbon (C2+) products [12][13][14]. However, pure Cu catalysts lack the desirable activity and selectivity toward C2 products for practical applications [15,16]. The improvement of the efficiency of C2 product generation using Cu and Cu-based catalysts has aroused great interest [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Tuning the intermediate reaction barriers by a CuPd catalyst to improve the selectivity of CO2 electroreduction to C2 products

Zhu

Lin

Liu

et al. 2021

Chinese Journal of Catalysis

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Electrochemical CO2 reduction is a promising strategy for the utilization of CO2 and intermittent excess electricity. Cu is the only single metal catalyst that can electrochemically convert CO2 into multicarbon products. However, Cu exhibits an unfavorable activity and selectivity for the generation of C2 products because of the insufficient amount of CO* provided for the C-C coupling. Based on the strong CO2 adsorption and ultrafast reaction kinetics of CO* formation on Pd, an intimate CuPd(100) interface was designed to lower the intermediate reaction barriers and improve the efficiency of C2 product formation. Density functional theory (DFT) calculations showed that the CuPd(100) interface enhanced the CO2 adsorption and decreased the CO2* hydrogenation energy barrier, which was beneficial for the C-C coupling. The potential-determining step (PDS) barrier of CO2 to C2 products on the CuPd(100) interface was 0.61 eV, which was lower than that on Cu(100) (0.72 eV). Encouraged by the DFT calculation results, the CuPd(100) interface catalyst was prepared by a facile chemical solution method and characterized by transmission electron microscopy. CO2 temperature-programmed desorption and gas sensor experiments further confirmed the enhancement of the CO2 adsorption and CO2* hydrogenation ability of the CuPd(100) interface catalyst. Specifically, the obtained CuPd(100) interface catalyst exhibited a C2 Faradaic efficiency of 50.3% ± 1.2% at -1.4 VRHE in 0.1 M KHCO3, which was 2.1 times higher than that of the Cu catalyst (23.6% ± 1.5%). This study provides the basis for the rational design of Cu-based electrocatalysts for the generation of multicarbon products by fine-tuning the intermediate reaction barriers.

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“…In the Cu−Sb alloy family, the Cu 2 Sb alloy has drawn more attention for its large volume capacity and suitable operating potential precluding the lithium/sodium plating in energy storage batteries [2a–c,3] . Meanwhile, Cu 2 Sb also acts as a highly active and selective electrocatalyst for CO 2 to CO or ethylene conversion [2e,4] . Moreover, Cu−Sb alloys are still considered as potential thermoelectric and superconducting materials [5] .…”

Section: Introductionmentioning

confidence: 99%

Electrochemically Converting Liquid Cu₂S‐Sb₂S₃ to Liquid Cu₂Sb and Sulfur in Molten Salt at 730 °C

Yin

Guo

et al. 2021

ChemElectroChem

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Conventional sulfide metallurgy suffers from SO x gas emission and high energy consumption, owing to the multiple-step extraction processes and high temperatures that are above the melting point of the extracted metals. Herein, liquid Cu 2 Sb alloy can be directly electrochemically extracted from the liquid Sb 2 S 3 -Cu 2 S with no sulfide oxides emission in eutectic NaCl-KCl molten electrolyte at 730 °C. The use of Sb 2 S 3 decreases the melting point of Cu 2 S and the Sb decreases the melting temperature of Cu. The Sb 2 S 3 -Cu 2 S mixture experiences three stages in the electrochemical desulfurization process: the insertion of Na + into liquid sulfides, the removal of S 2À and metallization, and finally the formation of uniform liquid Cu 2 Sb alloy. The Sb 2 S 3 -Cu 2 S can be completely electro-converted into Cu 2 Sb at 2.6 V for 6 hours. This study provides a straightforward and environmentally friendly route to electro-synthesize liquid alloys from their molten sulfide minerals.

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Efficient electrocatalytic reduction of carbon dioxide to ethylene on copper–antimony bimetallic alloy catalyst

Cited by 43 publications

References 48 publications

Facile synthesis of two-dimensional copper terephthalate for efficient electrocatalytic CO₂ reduction to ethylene

Facile synthesis of two-dimensional copper terephthalate for efficient electrocatalytic CO₂ reduction to ethylene

Tuning the intermediate reaction barriers by a CuPd catalyst to improve the selectivity of CO2 electroreduction to C2 products

Electrochemically Converting Liquid Cu₂S‐Sb₂S₃ to Liquid Cu₂Sb and Sulfur in Molten Salt at 730 °C

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Efficient electrocatalytic reduction of carbon dioxide to ethylene on copper–antimony bimetallic alloy catalyst

Cited by 43 publications

References 48 publications

Facile synthesis of two-dimensional copper terephthalate for efficient electrocatalytic CO2 reduction to ethylene

Facile synthesis of two-dimensional copper terephthalate for efficient electrocatalytic CO2 reduction to ethylene

Tuning the intermediate reaction barriers by a CuPd catalyst to improve the selectivity of CO2 electroreduction to C2 products

Electrochemically Converting Liquid Cu2S‐Sb2S3 to Liquid Cu2Sb and Sulfur in Molten Salt at 730 °C

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Product

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Facile synthesis of two-dimensional copper terephthalate for efficient electrocatalytic CO₂ reduction to ethylene

Facile synthesis of two-dimensional copper terephthalate for efficient electrocatalytic CO₂ reduction to ethylene

Electrochemically Converting Liquid Cu₂S‐Sb₂S₃ to Liquid Cu₂Sb and Sulfur in Molten Salt at 730 °C