Constructing strain in electrocatalytic materials for CO<sub>2</sub> reduction reactions

Lin, Junshan; Zhang, Ning

doi:10.1039/d4gc00514g

Green Chem.

2024

DOI: 10.1039/d4gc00514g

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Constructing strain in electrocatalytic materials for CO₂ reduction reactions

Junshan Lin,

Ning Zhang

Abstract: The electrocatalytic conversion of carbon dioxide (CO2) into valuable carbon-based compounds has attracted considerable attention. In the quest for efficient electrocatalysts, strain engineering, characterized by localized relative deformation, emerges as...

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Cited by 3 publications

References 133 publications

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Construction of Interlayered Single-Atom Active Sites on Bipyridine-Based 2D Conjugated Covalent-Organic Frameworks for Boosting the C₂ Products of Electrochemical CO₂ Reduction

Dai,

Lv,

et al. 2024

ACS Appl. Mater. Interfaces

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The electrochemical carbon dioxide reduction (eCO 2 RR) shows great potential in the realization of carbon neutrality, which requires a dedicated catalyst design. To develop electrocatalysts that favor C 2 products, herein, the synthetic protocol for engineering interlayered single-atom metal active sites on the bipyridine-linked 2D conjugated covalent-organic framework (2D c-COF) has been developed by utilizing the interlayer π−π stacking. The resultant M@BTT-BPy-COF (where M = Cu, Ni, and Fe) provides fully exposed single-atom active sites with a suitable interdistance for catalyzing the key C−C coupling in the eCO 2 RR process. The Faradaic efficiency of ethanol (FE ethanol ) exceeds 40% with M@BTT-BPy-COF at −0.8 V vs RHE, outperforming most reported COF-based electrocatalysts. Density functional calculations suggest that the proximal active sites in the pore channel of COFs are the key active sites for promoting the C−C coupling to generate ethanol product. This investigation presents a novel way to engineer single-atom catalytic centers on 2D c-COFs, displaying the great potential of 2D c-COFs in electrocatalysis.

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Construction of Interlayered Single-Atom Active Sites on Bipyridine-Based 2D Conjugated Covalent-Organic Frameworks for Boosting the C₂ Products of Electrochemical CO₂ Reduction

Dai,

Lv,

et al. 2024

ACS Appl. Mater. Interfaces

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Electronic Structure Engineering of Transition-Metal-based Electrocatalysts for Water Splitting

Sun,

Zhang

2024

ACS Sustainable Chem. Eng.

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Electrochemical water splitting is regarded as the most promising technology for producing hydrogen energy. In the quest for efficient and inexpensive electrocatalysts, electronic structural engineering in transition metals has gained increasing attention. This review provides an overview of the advancement of electronic structural engineering in transition-metal electrocatalytic materials for water splitting. It begins by introducing the features of different electronic structures and their effects on the water splitting reactions. Subsequently, the recent research progress in oxygen evolution reactions and hydrogen evolution reactions through electronic structural modulation engineering is analyzed. The electronic tuned structure influences the adsorption energy between reactive intermediates and catalyst substrates in the electrocatalytic water splitting process. Finally, the review briefly describes the transition-metal-based electrocatalysts in industrial applied proton exchange membrane water electrolyzers. This review will provide deep insight for designing highly efficient electrocatalytic materials for water splitting reactions.

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Biomass Gasification as a Scalable, Green Route to Combined Heat and Power (CHP) and Synthesis Gas for Materials: A Review

Lackner,

Fei,

Guo

et al. 2024

Fuels

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The high externalized and still partly unknown costs of fossil fuels through air pollution from combustion, and their limited resources have caused mankind to (re)turn to renewable sources such as wind, solar, and biomass to meet its energy needs. Converting biomass to synthesis gas is advantageous since it can utilize a wide variety of (waste) feedstocks to obtain an energetic and versatile product at low cost in large quantities. Gasification is no new technology; yet in recent years, biomass gasification has attracted significant attention. Due to the non-depletable nature of agricultural waste and similar biomass side streams, which have little value and can bring environmental problems when mismanaged such as methane emissions, it is possible to obtain cheap electrical or thermal energy through the gas produced with high efficiencies. Combined heat and power (CHP) is the preferred use case, and recently the focus has moved to polygeneration, e.g., to make value-added products from the synthesis gas. Fischer–Tropsch synthesis from coal-derived syngas is now being complemented by the gas fermentation of biobased synthesis gas, where microorganisms yield materials from CO/H2 (and CO2) in an anaerobic process and from CH4/O2 in an aerobic process. Syngas methanation offers an alternative route to produce synthetic natural gas (SNG, or bio-SNG) as additional feedstock for gas fermentation. Materials made from syngas are decoupled from primary agricultural operations and do not compete with feed and food production. Due to the ample raw material base for gasification, which can basically be all kinds of mostly dry biomass, including waste such as municipal solid waste (MSW), syngas-derived products are highly scalable. Amongst them are bioplastics, biofuels, biobased building blocks, and single-cell protein (SCP) for feed and food. This article reviews the state-of-the-art in biomass gasification with a spotlight on gas fermentation for the sustainable production of high-volume materials.

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Constructing strain in electrocatalytic materials for CO₂ reduction reactions

Abstract: The electrocatalytic conversion of carbon dioxide (CO2) into valuable carbon-based compounds has attracted considerable attention. In the quest for efficient electrocatalysts, strain engineering, characterized by localized relative deformation, emerges as...

Cited by 3 publications

References 133 publications

Construction of Interlayered Single-Atom Active Sites on Bipyridine-Based 2D Conjugated Covalent-Organic Frameworks for Boosting the C₂ Products of Electrochemical CO₂ Reduction

Construction of Interlayered Single-Atom Active Sites on Bipyridine-Based 2D Conjugated Covalent-Organic Frameworks for Boosting the C₂ Products of Electrochemical CO₂ Reduction

Electronic Structure Engineering of Transition-Metal-based Electrocatalysts for Water Splitting

Biomass Gasification as a Scalable, Green Route to Combined Heat and Power (CHP) and Synthesis Gas for Materials: A Review

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Constructing strain in electrocatalytic materials for CO2 reduction reactions

Abstract: The electrocatalytic conversion of carbon dioxide (CO2) into valuable carbon-based compounds has attracted considerable attention. In the quest for efficient electrocatalysts, strain engineering, characterized by localized relative deformation, emerges as...

Cited by 3 publications

References 133 publications

Construction of Interlayered Single-Atom Active Sites on Bipyridine-Based 2D Conjugated Covalent-Organic Frameworks for Boosting the C2 Products of Electrochemical CO2 Reduction

Construction of Interlayered Single-Atom Active Sites on Bipyridine-Based 2D Conjugated Covalent-Organic Frameworks for Boosting the C2 Products of Electrochemical CO2 Reduction

Electronic Structure Engineering of Transition-Metal-based Electrocatalysts for Water Splitting

Biomass Gasification as a Scalable, Green Route to Combined Heat and Power (CHP) and Synthesis Gas for Materials: A Review

Contact Info

Product

Resources

About

Constructing strain in electrocatalytic materials for CO₂ reduction reactions

Construction of Interlayered Single-Atom Active Sites on Bipyridine-Based 2D Conjugated Covalent-Organic Frameworks for Boosting the C₂ Products of Electrochemical CO₂ Reduction

Construction of Interlayered Single-Atom Active Sites on Bipyridine-Based 2D Conjugated Covalent-Organic Frameworks for Boosting the C₂ Products of Electrochemical CO₂ Reduction