How carbon contamination on the photocatalysts interferes with the performance analysis of CO<sub>2</sub> reduction

You, Jiakang; Xiao, Mingzhao; Liu, Siqi; Lu, Haijiao; Chen, Peng; Zhi, Junge; Shangguan, Wenfeng; Wang, Zhiliang; Wang, Luyao

doi:10.1039/d3ta00834g

J. Mater. Chem. A

2023

DOI: 10.1039/d3ta00834g

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How carbon contamination on the photocatalysts interferes with the performance analysis of CO₂ reduction

Jiakang You

Mingzhao Xiao

Siqi Liu

et al.

Abstract: Photocatalytic carbon dioxide (CO2) reduction reaction (CO2RR) for valuable chemicals production is a promising solar-driven strategy to mitigate CO2 emission. However, the carbon contamination on the photocatalysts will interfere the...

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2024

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Cited by 6 publications

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Electrocatalysis for Green(er) Chemistry: Limitations and Opportunities with Traditional and Emerging Characterization Methods for Tangible Societal Impact

Sherrell,

Iesalnieks,

Ehrnst

et al. 2024

Adv Energy and Sustain Res

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The world is facing grand challenges in energy security, environmental pollution, and sustainable use (and re‐use) of resources. Electrochemical processes, incorporating electrosynthesis, electrochemical catalysis, and electrochemical energy storage devices, provide pathways to address these challenges via green chemistry. However, the applicability of electrochemical processes for these systems is limited by the required energy input, the “electrons” in electrochemistry. Electrocatalysis as a subset of electrochemistry is set to underpin many of the United Nations Sustainable Development Goals, including “Affordable and Clean Energy” through the production of future fuels and abatement of carbon emissions; “Responsible Consumption and Production” through recycling and degradation of waste; and “Climate Action” through CO2 (and other greenhouse gas) remediation. The rise of green photovoltaic power has lowered the carbon cost of these electrons, making electrocatalysis an even more viable, green(er), chemical conversion pathway. This perspective highlights the need for comprehensive understanding of catalyst structure via in situ and operando analysis to complement device design considerations. The challenges faced by the field of electrocatalysis in data reporting, elimination of electrochemical artifacts, catalyst stability, and scaling to industrial relevance, along with opportunities, emerging tools, are discussed with a view to achieve the maximum ‘potential’ of electrocatalysis.

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Electrocatalysis for Green(er) Chemistry: Limitations and Opportunities with Traditional and Emerging Characterization Methods for Tangible Societal Impact

Sherrell,

Iesalnieks,

Ehrnst

et al. 2024

Adv Energy and Sustain Res

View full text Add to dashboard Cite

show abstract

Surface Modifications of Heterogeneous Photocatalysts for Photocatalytic Conversion of CO₂ by H₂O as the Electron Donor

Nakamoto,

Iguchi,

Naniwa

et al. 2024

ChemCatChem

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The photocatalytic conversion of CO2 using H2O over heterogeneous photocatalysts has attracted worldwide attention because it enables direct solar‐to‐chemical energy conversion. However, further development of this technology requires solutions to overcome the low formation rates of CO2 reduction products and their insufficient selectivity, mainly caused by the rapid charge recombination of photogenerated electron/hole pairs, competition for thermodynamically preferential H2 evolution from H2O, and the relatively low concentration of CO2 on the surface of the photocatalysts. Surface modification of heterogeneous photocatalysts is crucial for improving their formation rates and selectivity. This review article introduces four strategies for designing photocatalyst surfaces for the photocatalytic conversion of CO2 by H2O: (I) loading of an Ag cocatalyst, (II) utilisation of cocatalysts for H2O oxidation, (III) suppression of undesired H2 evolution, and (IV) loading of basic materials for CO2 adsorption. The strategies introduced in this review successfully enhanced the formation rates of the products and/or their selectivity in the heterogeneous photocatalytic conversion of CO2 by H2O.

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Polar materials for photocatalytic applications: A critical review

Liu,

Zhang,

Wang

et al. 2024

Interdisciplinary Materials

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The critical challenges of the energy crisis and environmental degradation promote innovative approaches for energy conversion. Semiconductor‐based photocatalytic technology, which transforms solar energy into chemical energy, emerges as a promising solution. However, the practical application of this technology faces several challenges, such as the rapid recombination of photogenerated electrons and holes, significantly limiting photocatalytic efficiency. In this review, we provide a detailed discussion, an insightful perspective, and a critical evaluation of recent advances, challenges, and opportunities in the field of photocatalysis using polar materials. We present a comprehensive examination of the photocatalytic mechanisms, activity, and diverse applications of photocatalysts based on polar materials. We also briefly discuss the engineering design of polar photocatalysis in experiments and its scalability in the industry. This review outlines future trends and potential breakthroughs in the photocatalytic field using polar materials, projecting their transformative impact on environmental chemistry and energy engineering.

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How carbon contamination on the photocatalysts interferes with the performance analysis of CO₂ reduction

Abstract: Photocatalytic carbon dioxide (CO2) reduction reaction (CO2RR) for valuable chemicals production is a promising solar-driven strategy to mitigate CO2 emission. However, the carbon contamination on the photocatalysts will interfere the...

Cited by 6 publications

References 50 publications

Electrocatalysis for Green(er) Chemistry: Limitations and Opportunities with Traditional and Emerging Characterization Methods for Tangible Societal Impact

Electrocatalysis for Green(er) Chemistry: Limitations and Opportunities with Traditional and Emerging Characterization Methods for Tangible Societal Impact

Surface Modifications of Heterogeneous Photocatalysts for Photocatalytic Conversion of CO₂ by H₂O as the Electron Donor

Polar materials for photocatalytic applications: A critical review

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How carbon contamination on the photocatalysts interferes with the performance analysis of CO2 reduction

Abstract: Photocatalytic carbon dioxide (CO2) reduction reaction (CO2RR) for valuable chemicals production is a promising solar-driven strategy to mitigate CO2 emission. However, the carbon contamination on the photocatalysts will interfere the...

Cited by 6 publications

References 50 publications

Electrocatalysis for Green(er) Chemistry: Limitations and Opportunities with Traditional and Emerging Characterization Methods for Tangible Societal Impact

Electrocatalysis for Green(er) Chemistry: Limitations and Opportunities with Traditional and Emerging Characterization Methods for Tangible Societal Impact

Surface Modifications of Heterogeneous Photocatalysts for Photocatalytic Conversion of CO2 by H2O as the Electron Donor

Polar materials for photocatalytic applications: A critical review

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Product

Resources

About

How carbon contamination on the photocatalysts interferes with the performance analysis of CO₂ reduction

Surface Modifications of Heterogeneous Photocatalysts for Photocatalytic Conversion of CO₂ by H₂O as the Electron Donor