Assessing the CO2 Capture and Electro-Reduction in Imidazolium-Based Ionic Liquids: Role of the Ion Exchange Membrane DOI Open Access
Mario Gallone, Alessia Fortunati, Simelys Hernández

et al.

Catalysts, Journal Year: 2025, Volume and Issue: 15(4), P. 318 - 318

Published: March 26, 2025

The electrochemical CO2 reduction (eCO2RR) to valuable chemicals offers a promising method combat global warming by recycling carbon. Among the possible products, syngas—a CO and H2 mixture—is especially for industrial reactions. use of Room Temperature Ionic Liquids (RTILs) electrolytes presents pathway eCO2RR because lower overpotential required increased solubility with respect aqueous ones. Ensuring constant CO/H2 production is essential, it relies on both catalyst reactor design. This study explores in RTIL mixtures 1-butyl-3-methyl imidazolium trifluoromethanesulfonate (good conversion) acetate capture), various amounts water as proton source. We evaluated syngas stability across different cells ion exchange membranes after determining appropriate electrolyte mixture suitable ratio near 1:1. two-chamber cell configuration outperformed single-cell designs reducing oxidative RTILs degradation by-products formation. Using bipolar membrane (BPM) forward mode led catholyte acidification, causing an increase HER relative over time, confirmed Multiphysics modeling. Conversely, anionic (AEM) maintained extended periods. work guidelines generation RTIL-based systems from waste-CO2 reduction, which can be useful other green chemical synthesis processes.

Language: Английский

Electro-, thermo-, and photocatalysis of versatile nanocomposites toward tandem process DOI Creative Commons
Weikang Wang,

Jialun He,

Juan Deng

et al.

iScience, Journal Year: 2024, Volume and Issue: 27(2), P. 108781 - 108781

Published: Jan. 6, 2024

Tandem reactions involve multi-step processes conducted in one pot, offering a cost-effective, environmentally friendly, and efficient approach to chemical transformations with high atom economy. The catalytic systems employed tandem are crucial for achieving desirable activity, selectivity, stability. Researchers worldwide have extensively explored driven by various energy fields, such as electrocatalysis, thermocatalysis, photocatalysis, aiming facilitate multiple bond transformations. Continuous advancements been made reaction conditions, catalyst design, preparation methods. This review provides comprehensive overview of recent progress reactions, specifically focusing on electro-, thermo-, categorizes them into catalysts, reactors, fields based their applications. Furthermore, the highlights significance rational design nanomaterial catalysts integration sources, emphasizing potential enhance performance, development combined catalysis.

Language: Английский

Citations

7
Electrochemical Approaches to CO2 Conversion on Copper-Based Catalysts DOI
Gong Zhang, Lulu Li, Zhi‐Jian Zhao

et al.

Accounts of Materials Research, Journal Year: 2022, Volume and Issue: 4(3), P. 212 - 222

Published: Dec. 2, 2022

ConspectusAs one of the essential pathways to carbon neutrality or negativity, electrochemical reduction CO2 offers tremendous prospects for platform chemicals and fuel production. Copper (Cu) is currently only metal material that able reduce multicarbon (C2+) products. Despite fact copper-based materials have been investigated decades, we still confront numerous challenges on path fundamental understanding large-scale deployment electrocatalysts reduction. For investigations, it remains a variety open questions about mechanisms. The convoluted C–C coupling product bifurcation processes confuse design efficient catalysts. active sites catalysts remain ambiguous due surface reconstruction. As theoretical calculations, construction electrolyte–electrode models investigation solvation effects are premature obtaining confident conclusions. In addition, simple easily scalable techniques catalyst synthesis need be continuously developed.For practical applications, electrolyzer with must operated high current densities, Faradaic efficiencies, energetic single-pass conversion rates (high concentration), long stability. Nevertheless, intricate nature systems, high-performance electrocatalyst alone not sufficient meet all above commercialization requirements. Therefore, reactor involving mass transfer enhancement calls more research input. Based background urgency net-zero goal, initiated our electrolysis using an emphasis site identification enhancement.This Account describes contribution field C2+ products formation. We first discuss controlled atomic arrangement valence states based neural network-accelerated computational simulations. Using synthesized catalyst, selectivity target improved energy consumption reduced. Then, describe efforts investigate reaction mechanisms, such as first-principles calculations at level, in situ surface-enhanced vibrational spectroscopies micrometer kinetics studies apparent performance level. also overview system engineering, consisting vapor-fed three-compartment flow cell membrane electrode assembly, which can increase yield. Furthermore, put forward main technical obstacles surmounted provide insights into commercial application technology.

Language: Английский

Citations

23
Membrane Electrode Assembly for Electrocatalytic CO2 Reduction: Principle and Application DOI
Zheng Zhang, Xin Huang, Zhou Chen

et al.

Angewandte Chemie, Journal Year: 2023, Volume and Issue: 135(28)

Published: March 27, 2023

Abstract Electrocatalytic CO 2 reduction reaction (CO RR) in membrane electrode assembly (MEA) systems is a promising technology. Gaseous can be directly transported to the cathode catalyst layer, leading enhanced rate. Meanwhile, there no liquid electrolyte between and anode, which help improve energy efficiency of whole system. The remarkable progress achieved recently points out way realize industrially relevant performance. In this review, we focus on principles MEA for RR, focusing gas diffusion electrodes ion exchange membranes. Furthermore, anode processes beyond oxidation water are considered. Besides, voltage distribution scrutinized identify specific losses related individual components. We also summarize generation different reduced products together with corresponding catalysts. Finally, challenges opportunities highlighted future research.

Language: Английский

Citations

15
Tandem electrocatalysis for CO2 reduction to multi-carbons DOI
X. N. Li, Tianxiang Yan,

Yichen Meng

et al.

Science China Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 29, 2024

Language: Английский

Citations

6
Forked Vein Structure W/WO3−x with Dual Active Sites in W and Oxygen Vacancies to Enhance Methylene Self‐Coupling for Efficient Conversion of Methane to Ethylene DOI
Huimin Li, Zhe Sun,

Chengkun Lei

et al.

Small, Journal Year: 2024, Volume and Issue: 20(29)

Published: Feb. 11, 2024

The directional conversion of methane to ethylene is challenging due the dissociation C─H bond and self-coupling methyl intermediates. Herein, a novel W/WO

Language: Английский

Citations

5
Tandem Electrocatalytic–Thermocatalytic Conversion of CO2 to Aromatic Hydrocarbons DOI
Samay Garg, Zhenhua Xie,

Alexandria X. Lam

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(6), P. 2990 - 2996

Published: May 28, 2024

The reaction of CO2 with H2O to produce aromatic hydrocarbons (benzene, toluene, ethylbenzene, and xylene isomers) (BTEX) represents a promising pathway for converting value-added liquid products. However, this cannot be achieved in single electrochemical or thermochemical process. This work utilizes tandem electrochemical–thermochemical reactors as new paradigm by starting the feed membrane electrode assembly (MEA) C2H4, which subsequently undergoes aromatization using gallium- phosphorus-modified zeolite ZSM-5 catalyst (Ga/ZSM-5/P) at ambient pressure BTEX. current study also demonstrates potential advantage strategy mitigating negative effects water testing reactor system under different hydration conditions performing situ X-ray diffraction (XRD) absorption (XAS) characterization catalysts. These results highlight process use trap before reactor.

Language: Английский

Citations

5
CO2 Conversion to Butene via a Tandem Photovoltaic–Electrochemical/Photothermocatalytic Process: A Co-design Approach to Coupled Microenvironments DOI
Kyra M. K. Yap, Aisulu Aitbekova,

Matthew Salazar

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(9), P. 4369 - 4377

Published: Aug. 15, 2024

We developed a tandem, unassisted, solar-driven electrochemical and photothermocatalytic process for the single-pass conversion of CO2 to butene using only simulated solar irradiation as energetic input. The two-step involves reduction (CO2R) ethylene followed by dimerization butene. assessed two unassisted setups concentrate in CO2R reactor, achieving concentrations up 5.4 vol% with 1.8% average solar-to-ethylene 5.6% CO2-to-ethylene under 1-sun illumination. When effluent gas stream was passed through oligomerization we generated 600 ppm 3-sun Through analysis this process, identified that presence H2, CO, H2O leads rapid deactivation Ni-based catalyst.

Language: Английский

Citations

5
Electrocatalytic CO2 reduction to C2H4: From lab to fab DOI Creative Commons

Zeyu Guo,

F.F. Yang,

Xiaotong Li

et al.

Journal of Energy Chemistry, Journal Year: 2023, Volume and Issue: 90, P. 540 - 564

Published: Nov. 26, 2023

The global concerns of energy crisis and climate change, primarily caused by carbon dioxide (CO2), are utmost importance. Recently, the electrocatalytic CO2 reduction reaction (CO2RR) to high value-added multi-carbon (C2+) products driven renewable electricity has emerged as a highly promising solution alleviate shortages achieve neutrality. Among these C2+ products, ethylene (C2H4) holds particular importance in petrochemical industry. Accordingly, this review aims establish connection between fundamentals (CO2RR-to-C2H4) laboratory-scale research (lab) its potential applications industrial-level fabrication (fab). begins summarizing fundamental aspects, including design strategies high-performance Cu-based electrocatalysts advanced electrolyzer devices. Subsequently, innovative techniques presented address inherent challenges encountered during implementations CO2RR-to-C2H4 industrial scenarios. Additionally, case studies techno-economic analysis process discussed, taking into factors such cost-effectiveness, scalability, market potential. concludes outlining perspectives associated with scaling up process. insights expected make valuable contribution advancing from lab fab.

Language: Английский

Citations

13
Rational Modulation of Interface Microenvironment and Design of the Flow Electrolyzer for COx Electroreduction to Alcohol DOI
Jiayi Chen, Xianyun Peng, Zhongjian Li

et al.

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

Published: Aug. 7, 2024

Abstract The electrocatalytic reduction of CO x (including 2 and CO) into value‐added fuels chemicals, particularly multi‐carbon (C 2+ ) alcohols, presents a significant opportunity to close the manmade carbon cycle support sustainable energy systems. catalytic performance electrochemical reactions (CO RR) is strongly correlated with local microenvironments, flow electrolyzer, catalysis approaches electrolyzers, which contribute kinetic thermodynamic landscape reaction, ultimately determining efficiency selectivity RR toward desired products. However, controllable microenvironment construction, rationally designed matchable electrolyzers derived chosen for improving RR‐to‐alcohol still face challenges. Building upon foundation laid by previous research, this review article will provide an in‐depth summary regulation reaction interface microenvironment, design development stepwise comprehensive strategic approach enhancing process alcohol production, offering valuable insights innovative solutions that can significantly impact field conversion more chemical production methods.

Language: Английский

Citations

4
CO2 Reduction by Nanosecond-Plasma Discharges: Revealing the Dissociation’s Time Scale and the Importance of Pulse Sequence DOI Creative Commons
Cesare Montesano, Toine P.W. Salden, Luca Martini

et al.

The Journal of Physical Chemistry C, Journal Year: 2023, Volume and Issue: 127(21), P. 10045 - 10050

Published: May 18, 2023

Power-to-chemical technologies with CO2 as feedstock recycle and store energy into value-added compounds. Plasma discharges fed by renewable electricity are a promising approach to conversion. However, controlling the mechanisms of plasma dissociation is crucial improving efficiency technology. We have investigated pulsed nanosecond discharges, showing that while most deposited in breakdown phase, only occurs after an order microsecond delay, leaving system quasi-metastable condition intervening time. These findings indicate presence delayed mediated excited states rather than direct electron impact. This "metastable" condition, favorable for efficient dissociation, can be prolonged depositing more form additional pulses critically depends on sufficiently short interpulse

Language: Английский

Citations

10