Modulating the Hydrogenation Mechanism of Electrochemical CO₂ Reduction Using Ruthenium Atomic Species on Bismuth

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Июнь 8, 2024

Abstract The conversion of CO 2 into formate through electrochemical methods is emerging as an elegant approach for industrial‐scale utilization in the near future. Although Bismuth (Bi)‐based materials have shown promise thank to their excellent selectivity, limited reactivity remains a challenge. Herein, this study demonstrates significant enhancement ‐to‐formate efficiency Bi by incorporating ruthenium (Ru) atomic species. Ru single atom doped exhibited nearly twofold higher partial current density compared with pure and clusters Bi, while over 95% Faradaic (FE) maintained. Through comprehensive investigations using combined techniques, operando spectroscopy, theoretical calculations, elucidates that presence promotes H O dissociation H* migration sites significantly reducing energy barrier via spillover path. Besides, it constructed Ru–Bi bridge efficient hydrogenation non‐spillover path, which served major mechanism Bi.

Язык: Английский

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A Regenerable Bi‐based Catalyst for Efficient and Stable Electrochemical CO2 Reduction to Formate at Industrial Current Densities

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(50)

Опубликована: Авг. 22, 2024

Renewable electricity shows immense potential as a driving force for the carbon dioxide reduction reaction (CO

Язык: Английский

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Boosting and stabilizing the electrocatalytic reduction of carbon dioxide on Bi2O2CO3 via surface modification with p-aminobenzoic acid

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 358, С. 124451 - 124451

Опубликована: Июль 27, 2024

Язык: Английский

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A Regenerable Bi‐based Catalyst for Efficient and Stable Electrochemical CO2 Reduction to Formate at Industrial Current Densities

Angewandte Chemie, Год журнала: 2024, Номер 136(50)

Опубликована: Авг. 22, 2024

Abstract Renewable electricity shows immense potential as a driving force for the carbon dioxide reduction reaction (CO 2 RR) in production of formate (HCOO − ) at industrial current density, providing promising path value‐added chemicals and chemical manufacturing. However, achieving high selectivity stable HCOO density remains challenge. Here, we present robust Bi 0.6 Cu 0.4 NSs catalyst capable regenerating necessary catalytic core (Bi−O) through cyclic voltammetry (CV) treatment. Notably, 260 mA cm −2 , faradaic efficiency reaches an exceptional to 99.23 %, maintaining above 90 % even after 400 h, which is longest time reported density. Furthermore, stability test, was constructed by CV reconstruction achieve efficient . In 20 h has rate 13.24 mmol m s −1 concentration 1.91 mol L energy consumption 129.80 kWh kmol situ Raman spectroscopy reveals formation Bi−O structure during gradual transformation from NBs NSs. Theoretical studies highlight pivotal role modifying adsorption behavior intermediates, further reduces barrier *OCHO conversion CO RR.

Язык: Английский

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Sulfur doping and oxygen vacancy in In2O3 nanotube co-regulate intermediates of CO2 electroreduction for efficient HCOOH production and rechargeable Zn-CO2 battery

Journal of Energy Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Окт. 1, 2024

Язык: Английский

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