A comprehensive review of electrochemical reduction of CO2 to methanol: Technical and design aspects

Wiranarongkorn, Kunlanan; Eamsiri, Kornkamol; Chen, Yong-Song; Arpornwichanop, Amornchai

doi:10.1016/j.jcou.2023.102477

Cited by 33 publications

(9 citation statements)

References 152 publications

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“…44−46 Employing amines can potentially create issues as it can act as a ligand and activate or deactivate the catalyst. 44 Other systems involve metal hydroxide complexes (mimicking carbonic anhydrase), 47 electrochemical cells, 48 plasmons, 49 metal surfaces, 50 and nanomaterials, 51 which target at reducing CO 2 to CO or CH 3 OH or incorporating it to various organic compounds, such as lactones. 3,52,53 Photoelectron spectroscopy experiments combined with density functional theory calculations from the Weber group have shown that first-row transition metal anions M − , such as Ti − , Fe − , Co − , and Mn − , bind strongly to CO 2 .…”

Section: Resultsmentioning

confidence: 99%

Potential of Molecular Catalysts with Electron-Rich Transition Metal Centers for Addressing Long-Standing Chemistry Enigmas

Androutsopoulos,

Sader,

Miliordos

2024

J. Phys. Chem. A

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Molecular complexes with electron-rich metal centers are highlighted as potential catalysts for the following five important chemical transformations: selective conversion of methane to methanol, capture and utilization of carbon dioxide, fixation of molecular nitrogen, water splitting, and recycling of perfluorochemicals. Our initial focus lies on negatively charged metal centers and ligands that can stabilize anionic metal atoms. Catalysts with electron-rich metal atoms (CERMAs) can sustain catalytic cycles with a “ping-pong” mechanism, where one or more electrons are transferred from the metal center to the substrate and back. The donated electrons can activate the chemical bonds of the substrate by populating its antibonding orbitals. At the last step of the catalytic cycle, the electrons return to the metal and the product interacts only weakly with the formed anion, which enables the solvent molecules to remove the product fast from the catalytic cycle and prevent subsequent unfavorable reactions. This process resembles electrocatalysis, but the metal serves as both an anode and a cathode (molecular electrocatalysis). We also analyze the usage of CERMAs as the base of Frustrated Lewis pairs proposing a new type of bimetallic catalysts. This Featured Article aspires to initiate systematic experimental and theoretical studies on CERMAs and their reactivity, the potential of which has probably been underestimated in the literature.

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Section: Resultsmentioning

confidence: 99%

Potential of Molecular Catalysts with Electron-Rich Transition Metal Centers for Addressing Long-Standing Chemistry Enigmas

Androutsopoulos,

Sader,

Miliordos

2024

J. Phys. Chem. A

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“…In the electrochemical CO 2 conversion system for producing alcohols at the industrial scale, current density, cell overpotential, and electrocatalyst durability are some of the key metrics that affect the overall energy efficiency and CO 2 conversion rate. 119 Comprehensive studies and a fundamental understanding of the electrochemical CO 2 reduction process are essential for commercialization. Herein, we review recent progress in developing different types of electrocatalysts and different reactor designs for electrochemical conversion of CO 2 to alcohol.…”

Section: Discussionmentioning

confidence: 99%

“…However, the goal of industrial application is still a long way off. In the electrochemical CO 2 conversion system for producing alcohols at the industrial scale, current density, cell overpotential, and electrocatalyst durability are some of the key metrics that affect the overall energy efficiency and CO 2 conversion rate . Comprehensive studies and a fundamental understanding of the electrochemical CO 2 reduction process are essential for commercialization.…”

Section: Summary and Outlookmentioning

confidence: 99%

Recent Progress and Perspective of the Electrochemical Conversion of Carbon Dioxide to Alcohols

Kaliyaperumal,

Gupta,

Prasad

et al. 2023

ACS Eng. Au

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Since the industrial revolution, energy demand has increased, resulting in an increase in the atmospheric carbon dioxide concentration. Increasing CO2 concentration contributes to global warming and climate change. Strategies to alleviate CO2 emissions by reducing fossil fuel usage and replacing them with renewable energy sources have been devised to resolve this issue. In addition, there are several ways to reduce atmospheric CO2 concentrations including capture, utilization, and sequestration (CCUS). Electrochemical conversion of CO2 is a value-added approach to reducing carbon dioxide emissions as well as producing valuable chemicals, feedstocks, and building blocks. In this review, we report on the electrochemical reduction of CO2 to alcohols and the progress made over the past five years. Alcohols are critical liquid fuels with a higher energy density, ease of storage, and transportation. Herein, we discuss the possible mechanisms for converting CO2 to alcohols and various electrocatalysts employed for this conversion. Detailed studies compared the performances of the electrocatalysts based on the faradaic efficiency, current density, product selectivity, and stability. Furthermore, various types of electrochemical devices that can be used for the conversion of CO2 to alcohol are also discussed. Finally, the challenges and perspectives for further research are presented.

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“…The global conversion of CO 2 into different usable fuels is mostly facilitated by electrocatalytic and photo-electrocatalytic processes. 81–83 Nevertheless, the inert nature of the CO 2 molecule presents a basic challenge, which has to be addressed for an effective electrochemical process on a large scale to be accomplished. 84 Among the spectroscopy methods, UV-vis spectroelectrochemistry is unique because of its wide range of applications and ease of experiments, which facilitate systematic studies on samples under a variety of reaction environments.…”

Section: In Situ Spectroscopic Methods For Electrochemical Co2 Reduct...mentioning

confidence: 99%

A brief review of in situ spectroscopic methods and electrochemical sensors as essential evaluation tools for the electrochemical reduction of CO₂ (ElRC)

Yadav,

Saad,

Al-Marri

et al. 2024

Sustainable Energy Fuels

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A comprehensive review of electrochemical reduction of CO2 to methanol: Technical and design aspects

Cited by 33 publications

References 152 publications

Potential of Molecular Catalysts with Electron-Rich Transition Metal Centers for Addressing Long-Standing Chemistry Enigmas

Potential of Molecular Catalysts with Electron-Rich Transition Metal Centers for Addressing Long-Standing Chemistry Enigmas

Recent Progress and Perspective of the Electrochemical Conversion of Carbon Dioxide to Alcohols

A brief review of in situ spectroscopic methods and electrochemical sensors as essential evaluation tools for the electrochemical reduction of CO₂ (ElRC)

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A comprehensive review of electrochemical reduction of CO2 to methanol: Technical and design aspects

Cited by 33 publications

References 152 publications

Potential of Molecular Catalysts with Electron-Rich Transition Metal Centers for Addressing Long-Standing Chemistry Enigmas

Potential of Molecular Catalysts with Electron-Rich Transition Metal Centers for Addressing Long-Standing Chemistry Enigmas

Recent Progress and Perspective of the Electrochemical Conversion of Carbon Dioxide to Alcohols

A brief review of in situ spectroscopic methods and electrochemical sensors as essential evaluation tools for the electrochemical reduction of CO2 (ElRC)

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Product

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A brief review of in situ spectroscopic methods and electrochemical sensors as essential evaluation tools for the electrochemical reduction of CO₂ (ElRC)