CO<sub>2</sub>electoreduction reaction on heteroatom-doped carbon cathode materials

Tian-fu, Liu; Ali, Sajjad; Lian, Zan; Li, Bo; Su, Dang Sheng

doi:10.1039/c7ta06674k

Cited by 70 publications

(45 citation statements)

References 48 publications

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“…However, carbon materials generally possess negligible inherent activity for the electroreduction of CO 2 , due to the absence of active sites. Heteroatom doping into the carbon framework stands out as an effective tuning knob for improving the activity of CO 2 reduction, by modulating the electronic properties of adjacent carbons, e.g., charge and spin density …”

Section: Electrocatalysts For Selectively Reducing Co2 To Comentioning

confidence: 99%

Recent Advances in Electrochemical CO₂‐to‐CO Conversion on Heterogeneous Catalysts

2018

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Electrochemical reduction of carbon dioxide (CO ) to fuels and chemicals provides a promising solution for renewable energy storage and utilization. Among the many possible reaction pathways, CO conversion to carbon monoxide (CO) is the first step in the synthesis of more complex carbon-based fuels and feedstocks, and holds great significance for the chemical industry. Herein, recent advances in heterogeneous catalysts for selective CO evolution from electrochemical reduction of CO are described. With Au catalysts as a paradigm, principles for catalyst design including size, morphology, and grain boundary densities tuning, surface modifications, as well as metal-support interaction are comprehensively summarized, which shed light on the development of other transition metal catalysts targeting efficient CO -to-CO conversion. In addition, recently emerged novel materials including transition metal single-atom catalysts, which present significantly different catalytic behaviors compared to their bulk counterparts and thus open up many unexpected opportunities, are summarized. Furthermore, the technical aspects with respect to large-scale production of CO are presented, focusing on the full-cell design and implementation. Finally, short comments related to the future direction of real-word CO electrolysis for CO supply are provided in terms of catalyst optimization and technical breakthrough.

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Section: Electrocatalysts For Selectively Reducing Co2 To Comentioning

confidence: 99%

Recent Advances in Electrochemical CO₂‐to‐CO Conversion on Heterogeneous Catalysts

2018

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“…For instance, S‐doped porous carbon (CPSN) was demonstrated to be able to generate both CO and CH 4 with a FE CO of 11.3% and FE CH4 of 0.2%, respectively, at an applied potential of −0.99 V . Moreover, Liu et al reported that phosphorous‐doped carbon could selectively reduce CO 2 to CO with FE CO of 81% at −0.9 V with partial j CO of −4.9 mA cm −2 . The DFT calculations indicate that the PC bonding configuration is responsible for higher reactivity toward the adsorption of radical intermediates and this allows the attainment of high FE CO .…”

Section: Active Sites In Carbon‐based Catalystsmentioning

confidence: 99%

A Disquisition on the Active Sites of Heterogeneous Catalysts for Electrochemical Reduction of CO₂ to Value‐Added Chemicals and Fuel

Daiyan

Saputera

Masood

et al. 2020

Advanced Energy Materials

135

104

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Renewable‐electricity‐powered electrocatalytic CO2 reduction reactions (CO2RR) have been identified as an emerging technology to address the issue of rising CO2 emissions in the atmosphere. While the CO2RR has been demonstrated to be technically feasible, further improvements in catalyst performance through active sites engineering are a prerequisite to accelerate its commercial feasibility for utilization in large CO2‐emitting industrial sources. Over the years, the improved understanding of the interaction of CO2 with the active sites has allowed superior catalyst design and subsequent attainment of prominent CO2RR activity in literature. This review tracks the evolution of the understanding of CO2RR active sites on different electrocatalysts such as metals, metal‐oxides, single atoms, metal‐carbon, and subsequently metal‐free carbon‐based catalysts. Despite the tremendous research efforts in the field, many scientific questions on the role of various active sites in governing CO2RR activity, selectivity, stability, and pathways are still unanswered. These gaps in knowledge are highlighted and a discussion is set forth on the merits of utilizing advanced in‐situ and operando characterization techniques and machine learning (ML). Using this technique, the underlying mechanisms can be discerned, and as a result new strategies for designing active sites may be uncovered. Finally, this review advocates an interdisciplinary approach to discover and design CO2RR active sites (rather than focusing merely on catalyst activity) in a bid to stimulate practical research for industrial application.

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“…For example, pyridinic nitrogen has been widely proved to activate graphene, carbon nanotube, and nanodiamond . Boron, phosphorus, and fluorine activating strategies have also been proved successfully, with an example of fluorine dopant improving the j CO with 250,000 times enhancement over the commercial carbon material . This exciting results can be explained with the reason that the fluorine dopant could activate more than one carbon atoms among several bonds as the highly active reaction sites (Figure ).…”

Section: Recent Progress Towards Practical Electrochemical Co2 Splittingmentioning

confidence: 99%

Electrochemical Carbon Dioxide Splitting

Xie

Huang

et al. 2019

ChemElectroChem

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To realize renewable energy storage with a reduced carbon footprint for replacing fossil fuel and closing the unbalanced carbon cycle, electrochemical CO 2 splitting, commonly containing aqueous CO 2 reduction and water oxidation as core reactions, has received booming interest for its unique ability to produce chemicals and fuels from CO 2 powered by renewable electricity. In this Review, recent progress of electrochemical CO 2 splitting from a fundamental understanding to practical control of the main performance index, including production rate, product selectivity, and energetic efficiency, is discussed with the highlight of the methodologies used to increase CO 2 supply in water media and active site design. The roles of the main components in electrochemical CO 2 splitting devices, such as catalyst, electrode, electrolyzer, membrane, and electrolyte, are discussed. Finally, we also provide personal perspectives to highlight the opportunities to overcome low stability and limited selectivity for practical electrochemical CO 2 splitting.[a] Dr.

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CO₂electoreduction reaction on heteroatom-doped carbon cathode materials

Abstract: This highlight summarizes the recent developments of heteroatom-doped carbon cathode catalysts for CERR.

Cited by 70 publications

References 48 publications

Recent Advances in Electrochemical CO₂‐to‐CO Conversion on Heterogeneous Catalysts

Recent Advances in Electrochemical CO₂‐to‐CO Conversion on Heterogeneous Catalysts

A Disquisition on the Active Sites of Heterogeneous Catalysts for Electrochemical Reduction of CO₂ to Value‐Added Chemicals and Fuel

Electrochemical Carbon Dioxide Splitting

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CO2electoreduction reaction on heteroatom-doped carbon cathode materials

Abstract: This highlight summarizes the recent developments of heteroatom-doped carbon cathode catalysts for CERR.

Cited by 70 publications

References 48 publications

Recent Advances in Electrochemical CO2‐to‐CO Conversion on Heterogeneous Catalysts

Recent Advances in Electrochemical CO2‐to‐CO Conversion on Heterogeneous Catalysts

A Disquisition on the Active Sites of Heterogeneous Catalysts for Electrochemical Reduction of CO2 to Value‐Added Chemicals and Fuel

Electrochemical Carbon Dioxide Splitting

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Product

Resources

About

CO₂electoreduction reaction on heteroatom-doped carbon cathode materials

Recent Advances in Electrochemical CO₂‐to‐CO Conversion on Heterogeneous Catalysts

Recent Advances in Electrochemical CO₂‐to‐CO Conversion on Heterogeneous Catalysts

A Disquisition on the Active Sites of Heterogeneous Catalysts for Electrochemical Reduction of CO₂ to Value‐Added Chemicals and Fuel