Synergized Cu/Pb Core/Shell Electrocatalyst for High-Efficiency CO<sub>2</sub> Reduction to C<sub>2+</sub> Liquids

Wang, Pengtang; Yang, Hao; Xu, Yong; Huang, Xiaoqing; Wang, Juan; Zhong, Miao; Cheng, Tao; Shao, Qi

doi:10.1021/acsnano.0c07869

Cited by 84 publications

(51 citation statements)

References 53 publications

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“…As shown in Figure S11 (Supporting Information), compared with Cu@Ag‐4, in addition to the CO desorption peak at 295 °C, the peak of Cu@Ag‐2 at 341 °C is attributed to the chemical adsorption of CO on Cu/Ag interface, which was similar to the reported phenomena. [ 21a ] This result indicates that the Cu@Ag‐2 has stronger bonding strength to CO, which is beneficial to the further C‐C coupling to form C 2 products during CO 2 RR.…”

Section: Resultsmentioning

confidence: 98%

“…Among them, the fabrication of core‐shell structure has been verified to be an effective strategy to boost the performance of nanomaterials through the short diffusion path, high active surface area, low internal resistance, and excellent stability. [ 21 ] Therefore, core‐shell nanomaterials are appealing as electrocatalysts since the core materials are the main active component with specific functions, while the shell materials act as protective layers to enhance the core materials’ performance or to produce new properties.…”

Section: Introductionmentioning

confidence: 99%

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Electrochemical Reduction of CO₂ Toward C₂ Valuables on Cu@Ag Core‐Shell Tandem Catalyst with Tunable Shell Thickness

Zhang

Zhao

et al. 2021

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After a great research on CO 2 electroreduction catalysts, scientists found that copper (Cu) is the only metal that can reduce CO 2 into C 2+ products. However, Cu itself usually has poor selectivity due to the wide product distribution, which limits their potential application in CO 2 RR. [3] Extensive distinguished works have been devoted to regulating the selectivity of Cu catalysts, such as optimizing crystal facets, [4] alloying, [5] modifying oxidation state, [6] surface doping, [7] introducing defects, [8] and modifying ligand. [9] Even so, the reduction of CO 2 into C 2+ products with high selectivity is still a challenging work. Thus, the rational design and preparation of efficient catalysts hold great importance in their fundamental study as well as the technical advancement of CO 2 RR.It is widely accepted that CO related intermediates are the key species to C 2+ products in CO 2 RR. [10] Therefore, the designing of a two-step route (i.e., CO 2 to CO and CO to C 2+ ) provides an appropriate pathway for the highly selective conversion of CO 2 to C 2+ , which can be achieved by the fabrication of tandem catalysts with multicomposite or hierarchical structure. [11] For multicomposite catalysts, a synergistic effect between different components can be used to achieve in situ CO generation, promoting the subsequently reduced to C 2+ . Due to the excellent CO formation ability of Au and Ag, [12] many studies revealed that the combining Au or/and Ag with Cu could significantly improve the selectivity of C 2+ products for CO 2 RR. Many composite catalysts, such as Au-bipy-Cu, [13] Au/Cu, [14] Cu nanowire/Ag nanoparticles (NPs), [15] layered Cu/Ag, [16] Ag@Cu NPs, [17] Cu 500 Ag 1000 , [18] Ag 1 -Cu 1.1 , [19] and Cu-Au/Ag nanoframes, [20] have been developed. In addition to the composition control, the finely engineered structure of the catalysts can also improve their performance. Among them, the fabrication of core-shell structure has been verified to be an effective strategy to boost the performance of nanomaterials through the short diffusion path, high active surface area, low internal resistance, and excellent stability. [21] Therefore, core-shell nanomaterials are appealing as electrocatalysts since the core materials are the main active component with specific functions, while the shell materials act as protective layers to Electrochemical CO 2 reduction reaction (CO 2 RR) is critical to converting CO 2 to high-value multicarbon chemicals. However, the Cu-based catalysts as the only option to reduce CO 2 into C 2+ products suffer from poor selectivity and low activity. Tandem catalysis for CO 2 reduction is an efficient strategy to overcome such problems. Here, Cu@Ag core-shell nanoparticles (NPs) with different silver layer thicknesses are fabricated to realize the tandem catalysis for CO 2 conversion by producing CO on Ag shell and further achieving C-C coupling on Cu core. It is found that Cu@Ag-2 NPs with the proper thickness of Ag shell exhibit the Faradaic efficiency (FE) of total C 2 products ...

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Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Electrochemical Reduction of CO₂ Toward C₂ Valuables on Cu@Ag Core‐Shell Tandem Catalyst with Tunable Shell Thickness

Zhang

Zhao

et al. 2021

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101

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“…Therefore, to battle the increase of viral pandemics and virus-related mortality risks, it is extremely desirable to find appropriate antiviral and viricidal elements to produce hygiene implements, personal protective equipment (PPE). (Huang et al 2020 ). Antiviral coatings can be divided into three major groups depending on material type used at the contaminated surface.…”

Section: Copper Based Materials In Fighting Covid-19 Virusmentioning

confidence: 99%

Antiviral properties of copper and its alloys to inactivate covid-19 virus: a review

et al. 2021

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Copper (Cu) and its alloys are prospective materials in fighting covid-19 virus and several microbial pandemics, due to its excellent antiviral as well as antimicrobial properties. Even though many studies have proved that copper and its alloys exhibit antiviral properties, this research arena requires further research attention. Several studies conducted on copper and its alloys have proven that copper-based alloys possess excellent potential in controlling the spread of infectious diseases. Moreover, recent studies indicate that these alloys can effectively inactivate the covid-19 virus. In view of this, the present article reviews the importance of copper and its alloys in reducing the spread and infection of covid-19, which is a global pandemic. The electronic databases such as ScienceDirect, Web of Science and PubMed were searched for identifying relevant studies in the present review article. The review starts with a brief description on the history of copper usage in medicine followed by the effect of copper content in human body and antiviral mechanisms of copper against covid-19. The subsequent sections describe the distinctive copper based material systems such as alloys, nanomaterials and coating technologies in combating the spread of covid-19. Overall, copper based materials can be propitiously used as part of preventive and therapeutic strategies in the fight against covid-19 virus.

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“…To improve the C 2+ synthesis efficiency, strategies such as doping with heteroatoms (N, B, etc. ), bonding with carbon materials, 15 and forming bimetallic catalysts 8,16 are commonly adopted to provide active interfaces, 17,18 oxygen vacancies, 2,5 defects, 19,20 etc. Among these strategies, the formation of bimetallic catalysts is widely applied because their electronic and geometry structures are different from the corresponding individual metals.…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic CO₂ reduction to ethylene over ZrO₂/Cu-Cu₂O catalysts in aqueous electrolytes

Guo

Yang

et al. 2022

Green Chem.

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Synergized Cu/Pb Core/Shell Electrocatalyst for High-Efficiency CO₂ Reduction to C₂₊ Liquids

Cited by 84 publications

References 53 publications

Electrochemical Reduction of CO₂ Toward C₂ Valuables on Cu@Ag Core‐Shell Tandem Catalyst with Tunable Shell Thickness

Electrochemical Reduction of CO₂ Toward C₂ Valuables on Cu@Ag Core‐Shell Tandem Catalyst with Tunable Shell Thickness

Antiviral properties of copper and its alloys to inactivate covid-19 virus: a review

Electrocatalytic CO₂ reduction to ethylene over ZrO₂/Cu-Cu₂O catalysts in aqueous electrolytes

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Synergized Cu/Pb Core/Shell Electrocatalyst for High-Efficiency CO2 Reduction to C2+ Liquids

Cited by 84 publications

References 53 publications

Electrochemical Reduction of CO2 Toward C2 Valuables on Cu@Ag Core‐Shell Tandem Catalyst with Tunable Shell Thickness

Electrochemical Reduction of CO2 Toward C2 Valuables on Cu@Ag Core‐Shell Tandem Catalyst with Tunable Shell Thickness

Antiviral properties of copper and its alloys to inactivate covid-19 virus: a review

Electrocatalytic CO2 reduction to ethylene over ZrO2/Cu-Cu2O catalysts in aqueous electrolytes

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Synergized Cu/Pb Core/Shell Electrocatalyst for High-Efficiency CO₂ Reduction to C₂₊ Liquids

Electrochemical Reduction of CO₂ Toward C₂ Valuables on Cu@Ag Core‐Shell Tandem Catalyst with Tunable Shell Thickness

Electrochemical Reduction of CO₂ Toward C₂ Valuables on Cu@Ag Core‐Shell Tandem Catalyst with Tunable Shell Thickness

Electrocatalytic CO₂ reduction to ethylene over ZrO₂/Cu-Cu₂O catalysts in aqueous electrolytes