Tuning Sn-Catalysis for Electrochemical Reduction of CO<sub>2</sub> to CO via the Core/Shell Cu/SnO<sub>2</sub> Structure

Li, Qing; Fu, Jiaju; Zhu, Wenlei; Chen, Zhengzheng; Shen, Bo; Wu, Liheng; Xi, Zheng; Wang, Tanyuan; Lü, Gang; Zhu, Jun‐Jie; Sun, Shouheng

doi:10.1021/jacs.7b00261

Cited by 604 publications

(507 citation statements)

References 27 publications

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“…[1][2][3] Electrochemical reduction of CO 2 has attracted wide attention because it can convert and store renewable energy resources, such as solar and wind energies, in the form of chemical energy. However, as ingle catalyst showing activity in both solvent types is still rare, to the best of our knowledge.W ed eveloped ac ore-shell-structured AgNW/NC700 composite using aA gn anowire( NW) core encapsulated by aN -doped carbon (NC) shell at 700 8C.…”

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confidence: 99%

A Core–Shell‐Structured Silver Nanowire/Nitrogen‐Doped Carbon Catalyst for Enhanced and Multifunctional Electrofixation of CO₂

Yang

Zhang

et al. 2018

ChemSusChem

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Numerous catalysts have been successfully introduced for CO fixation in aqueous or organic systems. However, a single catalyst showing activity in both solvent types is still rare, to the best of our knowledge. We developed a core-shell-structured AgNW/NC700 composite using a Ag nanowire (NW) core encapsulated by a N-doped carbon (NC) shell at 700 °C. Through control experiments and density functional theory calculations, it was confirmed that Ag nanowires acted as the active sites for CO fixation and the uniformly coating of N-doped carbon created a CO -rich environment around the Ag nanowires, which could significantly improve the catalytic activity of Ag nanowires for electrochemical CO fixation. Under mild conditions, up to 96 % faradaic efficiency of CO, 95 % yield of Ibuprofen and 92 % yield of propylene carbonate could be obtained in the electrochemical CO direct reduction, carboxylation and cycloaddition, respectively, using the same AgNWs/NC700 catalyst. These results might provide an alternative strategy for efficient electrochemical fixation of CO .

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confidence: 99%

A Core–Shell‐Structured Silver Nanowire/Nitrogen‐Doped Carbon Catalyst for Enhanced and Multifunctional Electrofixation of CO₂

Yang

Zhang

et al. 2018

ChemSusChem

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“…Besides pure metals, alloying of two different metals is explored so as to tune the binding strength of key intermediates through geometric and electronic effects, and therefore optimize the CO 2 RR reaction activity and selectivity. Thus far, most research attention has been focused on Cu‐based alloys, such as Cu–Au, Cu–Pd, Cu–In and Cu–Pt and Cu–Sn, and some showed very exciting results 92, 93, 94, 95, 96. It can be reasonably expected that the alloying strategy would soon be expanded to other combination for better possibilities.…”

Section: Electrocatalytic Materials For Co2 Reductionmentioning

confidence: 99%

CO₂ Reduction: From the Electrochemical to Photochemical Approach

et al. 2017

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Increasing CO2 concentration in the atmosphere is believed to have a profound impact on the global climate. To reverse the impact would necessitate not only curbing the reliance on fossil fuels but also developing effective strategies capture and utilize CO2 from the atmosphere. Among several available strategies, CO2 reduction via the electrochemical or photochemical approach is particularly attractive since the required energy input can be potentially supplied from renewable sources such as solar energy. In this Review, an overview on these two different but inherently connected approaches is provided and recent progress on the development, engineering, and understanding of CO2 reduction electrocatalysts and photocatalysts is summarized. First, the basic principles that govern electrocatalytic or photocatalytic CO2 reduction and their important performance metrics are discussed. Then, a detailed discussion on different CO2 reduction electrocatalysts and photocatalysts as well as their generally designing strategies is provided. At the end of this Review, perspectives on the opportunities and possible directions for future development of this field are presented.

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“…For instance, Yu and his team [5] report that copper nanoparticle interspersed MoS 2 nanoflowers facilitate CO 2 electroreduction to hydrocarbon, such as CH 4 and C 2 H 4 with high FE at low overpotentials. Sun et al [6] demonstrated a new strategy of controlling synergistic effect between Cu and SnO 2 in the core/shell Cu/SnO 2 structure to achieve selective electrochemical reduction of CO 2 to CO with FE reaching 93% at −0.7 V vs. reversible hydrogen electrode (RHE) in 0.5 M KHCO 3 .…”

Section: Introductionmentioning

confidence: 99%

Electroreduction of CO2 into Ethanol over an Active Catalyst: Copper Supported on Titania

et al. 2017

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A simple, inexpensive, and novel method was used to prepare electrocatalysts from Cu supported on titanium dioxide (Cu/TiO 2 ). XRD, SEM, and TEM characterizations confirmed different loadings of Cu nanoparticles (NPs) on TiO 2 . Cyclic voltammetry tests indicated that Cu/TiO 2 exhibited lower overpotential for CO 2 reduction than that of Cu NPs. Moreover, 40 wt % Cu/TiO 2 exhibited the highest faradaic efficiency for ethanol (FE ethanol ) of 27.4%, which is approximately 10-fold higher than that for Cu NPs (FE ethanol = 2.7%). The 40 wt % Cu/TiO 2 electrocatalyst exhibits a stable current density of 8.66 mA/cm 2 over a 25 h stability test. The high efficiency towards CO 2 electroreduction to ethanol may be attributed to the synergistic effect of Cu and TiO 2 NPs. This work highlights the importance of compositional effect of NPs on their catalytic activities and provides a strategy for designing efficient catalysts for CO 2 electroreduction in the future.

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Tuning Sn-Catalysis for Electrochemical Reduction of CO₂ to CO via the Core/Shell Cu/SnO₂ Structure

Cited by 604 publications

References 27 publications

A Core–Shell‐Structured Silver Nanowire/Nitrogen‐Doped Carbon Catalyst for Enhanced and Multifunctional Electrofixation of CO₂

A Core–Shell‐Structured Silver Nanowire/Nitrogen‐Doped Carbon Catalyst for Enhanced and Multifunctional Electrofixation of CO₂

CO₂ Reduction: From the Electrochemical to Photochemical Approach

Electroreduction of CO2 into Ethanol over an Active Catalyst: Copper Supported on Titania

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Tuning Sn-Catalysis for Electrochemical Reduction of CO2 to CO via the Core/Shell Cu/SnO2 Structure

Cited by 604 publications

References 27 publications

A Core–Shell‐Structured Silver Nanowire/Nitrogen‐Doped Carbon Catalyst for Enhanced and Multifunctional Electrofixation of CO2

A Core–Shell‐Structured Silver Nanowire/Nitrogen‐Doped Carbon Catalyst for Enhanced and Multifunctional Electrofixation of CO2

CO2 Reduction: From the Electrochemical to Photochemical Approach

Electroreduction of CO2 into Ethanol over an Active Catalyst: Copper Supported on Titania

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Product

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Tuning Sn-Catalysis for Electrochemical Reduction of CO₂ to CO via the Core/Shell Cu/SnO₂ Structure

A Core–Shell‐Structured Silver Nanowire/Nitrogen‐Doped Carbon Catalyst for Enhanced and Multifunctional Electrofixation of CO₂

A Core–Shell‐Structured Silver Nanowire/Nitrogen‐Doped Carbon Catalyst for Enhanced and Multifunctional Electrofixation of CO₂

CO₂ Reduction: From the Electrochemical to Photochemical Approach