Efficient CO2 Reduction to Formate with Nano-Roughened Cu–Bi Alloy Hollow Fiber Electrodes DOI
Zhibin Zhang, Lei Wang, Xixian Yang

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(52), P. 18566 - 18576

Published: Dec. 18, 2024

The electroreduction of CO2 to formate is significant interest due its potential for sustainable fuel and chemical production. Hollow fiber electrodes, which integrate gas diffusion catalytic layers, offer structural advantages. These advantages enhance gas–solid–liquid-phase reactions, making them particularly beneficial electroreduction. This work reports a copper–bismuth alloy hollow with nanostructured surface, designed specific metal ratios transformed into sulfur surface-modified (Cu7S4–CuBi HF) electrode nanoflower structures. CO2-penetration mode enhances current density Faradaic Efficiency (FE) while suppressing the hydrogen evolution reaction (HER), fiber's unique transport. morphology increases electrochemical active surface area, boosting densities. design achieved FE 91.27% at −0.9 V vs RHE 80.12 mA cm–2, outperforming many existing Cu@Bi electrocatalysts. success innovative distinct features electrodes.

Language: Английский

Catalyst Design and Engineering for CO2‐to‐Formic Acid Electrosynthesis for a Low‐Carbon Economy DOI

Karthik Peramaiah,

Moyu Yi,

Indranil Dutta

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 12, 2024

Abstract Formic acid (FA) has emerged as a promising candidate for hydrogen energy storage due to its favorable properties such low toxicity, flammability, and high volumetric capacity under ambient conditions. Recent analyses have suggested that FA produced by electrochemical carbon dioxide (CO 2 ) reduction reaction (eCO RR) using low‐carbon electricity exhibits lower fugitive (H emissions global warming potential (GWP) during the H carrier production, transportation processes compared those of other alternatives like methanol, methylcyclohexane, ammonia. eCO RR can enable industrially relevant current densities without need pressures, temperatures, or auxiliary sources. However, widespread implementation is hindered requirement highly stable selective catalysts. Herein, aim explore evaluate catalyst engineering in designing nanostructured catalysts facilitate economically viable production FA.

Language: Английский

Citations

4
Electrochemical Fiber Electrode Fabrication by Spinning: State-of-the-Art and Perspectives DOI
Yongdan Hou, Emmanuel Ofori, Lemuel Gbologah

et al.

ACS electrochemistry., Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

Language: Английский

Citations

0
Industrial‐Level Modulation of Catalyst‐Electrolyte Microenvironment for Electrocatalytic CO2 Reduction: Challenges and Advancements DOI
Weiyi Liu,

Zunhang Lv,

Changli Wang

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 9, 2024

Abstract CO 2 reduction reaction (CO RR), as a promising strategy for storing renewable energy and promoting carbon resource recycling, is critical industrial development. Previous reports have extensively explored catalyst‐electrolyte microenvironmental modulation to elucidate coupling mechanisms enhance catalytic conversion multicarbon products. Currently, most reviews mainly focus on the impact of microenvironment in low‐current systems mechanism exploration performance optimization, yet few them can integrate macroscopic applications with microscopic investigations explore relevance between development optimization. To address gap, this review focuses summarizing challenges advancements high‐current devices. By introducing models different scales sequentially, connection device clarified. Then, various invalidation effective solutions are summarized intuitively expound stability. Meanwhile, an intuitive measure rationality modulation, evaluation methods should be refined, which also covered further detail below. Finally, more valuable challenging prospects discussed guiding transformation RR.

Language: Английский

Citations

3
Advances and Challenges of Carbon‐Free Gas‐Diffusion Electrodes (GDEs) for Electrochemical CO2 Reduction DOI
Hesamoddin Rabiee,

Beibei Ma,

Yang Yu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 26, 2024

Abstract Electrochemical CO 2 reduction reaction (CO RR) coupled with renewable electricity holds promises for efficient mitigation of carbon emission impacts on the environment and turning into valuable chemicals. One important task in RR development is design fabrication electrodes stable operation long term. Gas‐diffusion (GDEs) have been employed to continuously feed electrolyzers. Despite significant advances GDE tailoring properties, present GDEs often suffer from critical issue flooding due electrowetting carbon‐based substrates, which hinders transition industrial application. To address flooding, intrinsically hydrophobic polymeric substrates recently fabricated shown promising performances. Herein, challenges associated carbon‐free are reviewed RR. This review first briefly outlines electrolyzers basics. Through discussion around shortcomings conventional GDEs, most recent efforts resolve summarized. Subsequently, advances, advantages, elaborated. Finally, priorities future studies suggested, aim support advancement scale‐up extend them other electrochemical systems where gas electrolyte contact.

Language: Английский

Citations

3
Bi Doped In2O3 Nanofiber for Efficient Electrocatalytic CO2 Reduction DOI

Yuanxiang Zhao,

Xinchun Lv,

Zifan Zhu

et al.

ChemCatChem, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 9, 2024

Abstract Electrocatalytic carbon dioxide reduction reaction (CO 2 RR) to formic acid (HCOOH) is attracted for superfluous CO removal and HCOOH production under ambient conditions. Indium‐based catalysts has considered as a good candidate material RR due their environmentally friendly features. However, the catalytic efficiency limited by poor Faradaic (FE) high overpotential of electrocatalyst, activity stability indium‐based are unsatisfactory, especially in industrial current density that critical commercialization. Herein, fiber Bi‐doped In O 3 was synthesized through electrospinning method, it demonstrate FE 88.2% at −1.5 V versus RHE (reversible hydrogen electrode) with partial −21.8 mA cm −2 H type cell. Specially, Bi‐In electrocatalyst also reach standard, which can work −400 92.7% (yield 6.9 mmol h −1 ) home‐made Flow Importantly, shows 24 long‐term test −300 . The improvement catalyst ascribed optimized electronic structure site, reduced function value beneficial reducing formation energy key *OCHO intermediates.

Language: Английский

Citations

1
Engineering interfacial molecular interactions on Ag Hollow fibre gas diffusion electrodes for high efficiency in CO2 conversion to CO DOI

Yizhu Kuang,

Guoliang Chen,

Dimuthu Herath Mudiyanselage

et al.

Chemistry - A European Journal, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 9, 2024

The electrochemical CO

Language: Английский

Citations

1
Efficient CO2 Reduction to Formate with Nano-Roughened Cu–Bi Alloy Hollow Fiber Electrodes DOI
Zhibin Zhang, Lei Wang, Xixian Yang

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(52), P. 18566 - 18576

Published: Dec. 18, 2024

The electroreduction of CO2 to formate is significant interest due its potential for sustainable fuel and chemical production. Hollow fiber electrodes, which integrate gas diffusion catalytic layers, offer structural advantages. These advantages enhance gas–solid–liquid-phase reactions, making them particularly beneficial electroreduction. This work reports a copper–bismuth alloy hollow with nanostructured surface, designed specific metal ratios transformed into sulfur surface-modified (Cu7S4–CuBi HF) electrode nanoflower structures. CO2-penetration mode enhances current density Faradaic Efficiency (FE) while suppressing the hydrogen evolution reaction (HER), fiber's unique transport. morphology increases electrochemical active surface area, boosting densities. design achieved FE 91.27% at −0.9 V vs RHE 80.12 mA cm–2, outperforming many existing Cu@Bi electrocatalysts. success innovative distinct features electrodes.

Language: Английский

Citations

1