CO2 Electroreduction to Multicarbon Products Over Cu2O@Mesoporous SiO2 Confined Catalyst: Relevance of the Shell Thickness DOI Open Access
Yanan Wang, Wenchuan Lai, Haolan Tao

и другие.

Advanced Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 17, 2024

Abstract Despite the advantage of high carbon utilization, CO 2 electroreduction (CO ER) in acid is challenged by competitive hydrogen evolution reaction (HER). Designing confined catalysts a promising strategy to suppress HER and boost ER, yet relationship between structure catalytic performance remains unclear, limiting rational design. Herein, using Cu O@mesoporous SiO core‐shell as well‐defined platform, volcano‐shaped found thickness mesoporous layer productivity multicarbon (C 2+ ) products electroreduction. The optimal shell 15 nm identified, with situ spectroscopies theoretical simulations attributing this trade‐off local alkalinity concentration, arising from nanoconfinement effect. At thickness, O@ catalyst achieves C Faradaic efficiency 83.1% ± 2.5% partial current density 687.8 mA cm −2 acidic electrolytes, exceeding most reported catalysts. This work provides valuable insights for design electrocatalysis.

Язык: Английский

Enhanced Local CO Coverage on Cu Quantum Dots for Boosting Electrocatalytic CO2 Reduction to Ethylene DOI
Yan Wang, Jiarui Wang, Rui Cai

и другие.

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 29, 2024

Abstract Ethylene (C 2 H 4 ) electrosynthesis from the electrocatalytic CO reduction process holds enormous potential applications in industrial production. However, sluggish kinetics of C─C coupling often result low yield and poor selectivity for C Herein, performance Cu catalysts varying sizes is investigated, prepared via a cryo‐mediated liquid phase exfoliation technique, electrochemical to . The activity gradually increase as size decreases tens nanometers few nanometers. Impressively, 5 nm quantum dots (Cu‐5) achieve maximum Faradaic efficiency (FE) 81.5% half‐cell cathodic energy (CEE) 42.2% with large partial current density 1.1 A cm −2 at −0.93 V versus reversible hydrogen electrode. Structural characterization situ spectroscopic analysis reveal that Cu‐5 dots, dominated by (100) facet, provide an abundance active sites enhance adsorption activation, promoting formation *CO intermediates. accumulation intermediates on facilitates CO‐CHO reaction, thus enhancing production rate.

Язык: Английский

Процитировано

15
Catalyst design for the electrochemical reduction of carbon dioxide: from copper nanoparticles to copper single atoms DOI Open Access
Qianwen Li, Jingjing Jiang, Shanshan Jiang

и другие.

Microstructures, Год журнала: 2025, Номер 5(1)

Опубликована: Янв. 17, 2025

Carbon dioxide reduction reaction (CO2RR) is an efficacious method to mitigate carbon emissions and simultaneously convert CO2 into high-value products. The efficiency of CO2RR depends on the development highly active selective catalysts. Copper (Cu)-based catalysts can effectively reduce hydrocarbons oxygen-containing compounds because their unique geometric electronic structures. Most importantly, Cu multiple products (C2+). Therefore, this review aims outline recent research progress in Cu-based for CO2RR. After introducing mechanism electroreduction reaction, we summarize influence size, morphology, coordination environment single component performance, especially performance control that contain nano or single-atom sites. Then, synergistic regulation strategies doping other metals are summarized. Finally, supports used reviewed. prospects challenges discussed.

Язык: Английский

Процитировано

1
Enhancing catalytic CO2 reduction to carbon performance of nano-MnFe2O4 prepared from high-silica manganese ores via MgO phase reconstruction strategy DOI Creative Commons
Jia Wang, Yuanbo Zhang, Jian Su

и другие.

Journal of Materiomics, Год журнала: 2025, Номер unknown, С. 101045 - 101045

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

1
Optimization of electronic structure by defect engineering for electrocatalytic carbon dioxide reduction reaction DOI
Jinghan He,

Jianbin Qiang,

Yangfan Xu

и другие.

Inorganic Chemistry Frontiers, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

This paper reviews the progress of defective Cu-based materials for eCO 2 RR, highlights design strategy defect structure and emphasizes mechanism site on catalytic behaviors.

Язык: Английский

Процитировано

0
Carbon-based nanomaterials for carbon neutralization through electrochemical CO2 reduction and C–N coupling DOI
Tanglue Feng,

Jinze Yang,

Jiajia Huang

и другие.

Matter, Год журнала: 2025, Номер 8(5), С. 102077 - 102077

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0
Recent engineering strategies for enhancing C2+ product formation in copper-catalyzed CO2 electroreduction DOI Creative Commons

Muhammad Shakir Hussain,

Sheraz Ahmed,

Muhammad Irshad

и другие.

Nano Materials Science, Год журнала: 2024, Номер unknown

Опубликована: Окт. 1, 2024

Язык: Английский

Процитировано

2
CO2 Electroreduction to Multicarbon Products Over Cu2O@Mesoporous SiO2 Confined Catalyst: Relevance of the Shell Thickness DOI Open Access
Yanan Wang, Wenchuan Lai, Haolan Tao

и другие.

Advanced Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 17, 2024

Abstract Despite the advantage of high carbon utilization, CO 2 electroreduction (CO ER) in acid is challenged by competitive hydrogen evolution reaction (HER). Designing confined catalysts a promising strategy to suppress HER and boost ER, yet relationship between structure catalytic performance remains unclear, limiting rational design. Herein, using Cu O@mesoporous SiO core‐shell as well‐defined platform, volcano‐shaped found thickness mesoporous layer productivity multicarbon (C 2+ ) products electroreduction. The optimal shell 15 nm identified, with situ spectroscopies theoretical simulations attributing this trade‐off local alkalinity concentration, arising from nanoconfinement effect. At thickness, O@ catalyst achieves C Faradaic efficiency 83.1% ± 2.5% partial current density 687.8 mA cm −2 acidic electrolytes, exceeding most reported catalysts. This work provides valuable insights for design electrocatalysis.

Язык: Английский

Процитировано

1