Enhanced Electrochemical Reduction of CO2 by Zeolitic Imidazolate Frameworks-8 Supported Silver Nanoparticles

Zhuang, Zhihong

doi:10.5185/amlett.2020.081546

Cited by 1 publication

(1 citation statement)

References 23 publications

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“…[5,6] Furthermore, supported silver nanostructures offer the opportunity to improve the electrocatalytic performance, while lowering the cost of the expensive metal. [7] Hence, many research groups devoted their efforts to synthesizing size-controlled silver nanoparticles supported on different substrates, such as titania, [8] zeolitic imidazolate frameworks, [9] highly pyrolytic graphite, [10] carbon nitride [11] and glassy carbon. [12] Carbon-based materials are popular in electrochemistry, due to their low cost, high abundance, great conductivity, and surface tunability.…”

Section: Introductionmentioning

confidence: 99%

Alkylamine‐Functionalized Carbon Supports to Enhance the Silver Nanoparticles Electrocatalytic Reduction of CO₂ to CO

Mattarozzi,

van den Akker,

Peerlings

et al. 2023

ChemElectroChem

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Silver electrocatalysts enable the conversion of CO2 to CO, thereby facilitating the transition to a carbon neutral society. To lower the cost of the expensive metal, silver nanostructures are often supported on carbon. This substrate offers great electrical conductivity, but it enhances the selectivity towards the competing hydrogen evolution reaction. In this work, carbon supports were functionalized with linear alkylamines of different chain lengths, to understand its effect on electrochemical performance. Alkylamines interact with the carbon surface and confer hydrophobic properties to the carbon support as well as making the local environment less acidic. These properties led not only to a suppression of the hydrogen evolution, but also to a remarkable enhancement in CO production. Despite the low silver weight loading (0.0016 mgAg cm−2), hexylamine‐functionalized carbon‐based catalysts achieved a CO to H2 ratio of 2.0, while the same material without the alkylamine functionalization only reached a ratio of 0.3, at −1.3 V vs RHE. This demonstrates the potential of hydrophobic functionalization for enhancing the CO selectivity of carbon‐supported catalysts.

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Section: Introductionmentioning

confidence: 99%

Alkylamine‐Functionalized Carbon Supports to Enhance the Silver Nanoparticles Electrocatalytic Reduction of CO₂ to CO

Mattarozzi,

van den Akker,

Peerlings

et al. 2023

ChemElectroChem

View full text Add to dashboard Cite

show abstract

Enhanced Electrochemical Reduction of CO2 by Zeolitic Imidazolate Frameworks-8 Supported Silver Nanoparticles

Cited by 1 publication

References 23 publications

Alkylamine‐Functionalized Carbon Supports to Enhance the Silver Nanoparticles Electrocatalytic Reduction of CO₂ to CO

Alkylamine‐Functionalized Carbon Supports to Enhance the Silver Nanoparticles Electrocatalytic Reduction of CO₂ to CO

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Enhanced Electrochemical Reduction of CO2 by Zeolitic Imidazolate Frameworks-8 Supported Silver Nanoparticles

Cited by 1 publication

References 23 publications

Alkylamine‐Functionalized Carbon Supports to Enhance the Silver Nanoparticles Electrocatalytic Reduction of CO2 to CO

Alkylamine‐Functionalized Carbon Supports to Enhance the Silver Nanoparticles Electrocatalytic Reduction of CO2 to CO

Contact Info

Product

Resources

About

Alkylamine‐Functionalized Carbon Supports to Enhance the Silver Nanoparticles Electrocatalytic Reduction of CO₂ to CO

Alkylamine‐Functionalized Carbon Supports to Enhance the Silver Nanoparticles Electrocatalytic Reduction of CO₂ to CO