Anchored silver-palladium aerogel on carbon cloth via diazonium chemistry for electrochemical reduction of CO2

Wang, Junyan; Fang, Zehao; Shao, Tsuimy; Lieu, Kelly; Motlagh, Mozhgan Khorasani; Noroozifar, Meissam; Kraatz, Heinz-Bernhard

doi:10.1016/j.jelechem.2024.118311

Journal of Electroanalytical Chemistry

2024

DOI: 10.1016/j.jelechem.2024.118311

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Anchored silver-palladium aerogel on carbon cloth via diazonium chemistry for electrochemical reduction of CO2

Junyan Wang,

Zehao Fang,

Tsuimy Shao

et al.

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Cited by 3 publications

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Regulating Organic Modifiers on Metal‐Based Catalysts for Enhanced Electrocatalytic CO₂ Reduction

Li,

Zheng,

Zhu

et al. 2024

Chemistry An Asian Journal

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Electrochemical CO2 reduction reaction (CO2RR) has been proved as a promising pathway for valuable chemical production and sustainable carbon cycling. Various regulatory strategies have been explored to boost CO2RR performance. Among these, metal‐based electrocatalytic CO2RR systems regulated by organic modifiers have been shown to play a pivotal role in regulating the complex catalytic processes. Herein, we provide an overview of the recent effective research for regulating the organic modifiers on metal‐based catalyst to enhance CO2RR performance. Two main fundamental mechanisms of enhanced CO2RR with organic modifiers are discussed, including controlling the local microenvironment (local concentration of reactant/intermediate, local pH, local electric field) at the electrode surface and modulating intrinsic catalytic active sites (crystal and electronic structure). Moreover, effective strategies to preserve a stable organic modifier/catalysts interface are also reviewed. Finally, the challenges and prospects faced by organic modifiers regulated metal‐based catalyst in CO2RR are proposed. We hope this review will provide a systematic and comprehensive understanding of the actual impacts of organic modifiers on the development of efficient CO2RR catalysts with favorable activity, selectivity, and stability.

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Regulating Organic Modifiers on Metal‐Based Catalysts for Enhanced Electrocatalytic CO₂ Reduction

Li,

Zheng,

Zhu

et al. 2024

Chemistry An Asian Journal

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Maximizing CO₂ Reduction Efficiency: Surface‐Regulated Highly Porous Ag‐Cu Alloy Aerogel Inserted With Multi‐Wall Carbon Nanotube Achieving Nearly Complete CO Selectivity

Wang,

Soo‐Hyun Park,

Imam

et al. 2024

ChemCatChem

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The electrochemical reduction of CO2 (eCO2RR) holds promise in mitigating atmospheric greenhouse gas levels but is hindered by low reaction kinetics, high energy barriers, and poor selectivity. To address these challenges, we developed a novel series of cost‐effective AgCu‐containing metal‐aerogel catalysts with high electrochemical surface areas (ECSA) using a top‐down reduction approach. The Ag85Cu15 aerogel, with an ECSA of 27.41 cm², achieved a Faraday efficiency (FE%) of 89.3% for CO production at ‐0.9 V vs. RHE. Increasing the Cu content to over 50% in the aerogel matrix produced small amounts of C2H4, with a maximum FE% of 12.9% at ‐1.0 V vs. RHE. To further enhance CO2 reduction efficiency, multi‐walled carbon nanotubes (CNT) were incorporated into the Ag85Cu15 alloy aerogel via a hydrothermal treatment. The highly dispersed CNTs within the aerogel matrix increased the ECSA to 57.00 cm² by forming a well‐defined porous structure through van‐der Waals interactions, improving CO selectivity, and achieving a FE% of 98.6% at ‐0.7 V vs. RHE and a partial current density of 9.6 mA/cm² in an H‐cell. 86% of the initial FECO% was maintained during an 18 h test with continuous electrolysis.

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Bimetallic Rh–Pd aerogels as efficient materials for ethanol electrooxidation

Fang,

Wang,

Huang

et al. 2024

International Journal of Hydrogen Energy

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Anchored silver-palladium aerogel on carbon cloth via diazonium chemistry for electrochemical reduction of CO2

Cited by 3 publications

References 71 publications

Regulating Organic Modifiers on Metal‐Based Catalysts for Enhanced Electrocatalytic CO₂ Reduction

Regulating Organic Modifiers on Metal‐Based Catalysts for Enhanced Electrocatalytic CO₂ Reduction

Maximizing CO₂ Reduction Efficiency: Surface‐Regulated Highly Porous Ag‐Cu Alloy Aerogel Inserted With Multi‐Wall Carbon Nanotube Achieving Nearly Complete CO Selectivity

Bimetallic Rh–Pd aerogels as efficient materials for ethanol electrooxidation

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Anchored silver-palladium aerogel on carbon cloth via diazonium chemistry for electrochemical reduction of CO2

Cited by 3 publications

References 71 publications

Regulating Organic Modifiers on Metal‐Based Catalysts for Enhanced Electrocatalytic CO2 Reduction

Regulating Organic Modifiers on Metal‐Based Catalysts for Enhanced Electrocatalytic CO2 Reduction

Maximizing CO2 Reduction Efficiency: Surface‐Regulated Highly Porous Ag‐Cu Alloy Aerogel Inserted With Multi‐Wall Carbon Nanotube Achieving Nearly Complete CO Selectivity

Bimetallic Rh–Pd aerogels as efficient materials for ethanol electrooxidation

Contact Info

Product

Resources

About

Regulating Organic Modifiers on Metal‐Based Catalysts for Enhanced Electrocatalytic CO₂ Reduction

Regulating Organic Modifiers on Metal‐Based Catalysts for Enhanced Electrocatalytic CO₂ Reduction

Maximizing CO₂ Reduction Efficiency: Surface‐Regulated Highly Porous Ag‐Cu Alloy Aerogel Inserted With Multi‐Wall Carbon Nanotube Achieving Nearly Complete CO Selectivity