On June 13, 2022, Professor Qiao Jinli of Donghua University was in the new Energy JournalNano Research Energy (https://www.sciopen.com/journal/2790-8119) published the latest roundup titled “Copper as a single metal atom based photo-, electro- and photoelectrochemical catalyst decorated on carbon nitride surface for efficient CO2 reduction: A review”, The review is comprehensiveCarbon nitride anchors copper single-atom catalysts in photocatalytic, electrocatalytic and photocatalytic carbon dioxide reduction reactionsThe latest research advances.
Figure: Carbon nitride-anchored single-atom copper for photocatalytic carbon dioxide reduction
With the increase of the world’s population and the acceleration of the industrialization process, the consumption of fossil fuels such as oil and coal has increased significantly, resulting in a sharp increase in carbon dioxide content in the atmosphere, which has triggered a series of climate problems such as the greenhouse effect and sea level rise. Therefore, researchers have developed efficient results from the aspects of thermal catalysis, biochemistry, photocatalysis, and electrocatalysisCarbon dioxide conversion technology。 Among them, thermal catalytic carbon dioxide hydrogenation reaction is requiredHigh temperature, high pressureReaction conditions, biochemical enzyme catalytic methodsHigh cost, low conversion rate, long reaction time, all of which restrict its development. Photocatalysis can be usedClean and pollution-free renewable energy solar energy, promote the separation of catalyst photogenerated electrons from holes, which can effectively drive carbon dioxide to reduce to hydrocarbon fuel; atNormal temperature and pressureElectrocatalysis has achieved the possibility of continuously converting carbon dioxide into low-carbon energy by adjusting conditions such as electrolyte, temperature, oxidation potential, and pH, but the reaction still existsPoor stability, low efficiency of a single product Faradayand other drawbacks. Therefore, the researchers tried to reduce carbon dioxide by photocatalysis and electrocatalysisAdvantageous couplingTogether, on the one handPhotogenerated electrons are generated by excitation by illuminationOn the other handThe use of an applied electric field realizes the conduction of multiple electrons and protons at lower potentials, and improves the separation efficiency of carriers, thus further improving the efficiency of carbon dioxide conversion.
Among the various semiconductor optical materials, catalysts of the carbon nitride series are a classNon-toxic, structurally stable, and excellent carbon dioxide reduction performanceof inorganic non-metallic materials. Among the various carbon nitride materials, C3N4 is duePhotogenerated charge carriers have the lowest coincidence rate, while exhibiting the best photocatalytic efficiency. butPure C3N4 has poor electrical conductivityIn the electrocatalytic performance, hydrogen evolution is also more serious. With this in mind, one needs to be addedAuxiliary catalystsTo promote charge transfer and improve the adsorption conversion capacity of carbon dioxide. Copper is the only energyMetal catalyst that converts carbon dioxide into C1 and C2 productsespeciallyCopper single-atom catalystIt can provide more active sites to further stimulate the intrinsic activity of reducing carbon dioxide. Based on this, this article summarizes the last five yearsCarbon nitride anchors copper single-atom catalystsImportant advances in photocatalytic, electrocatalytic, and photocatalytic carbon dioxide reduction reactions, with a focus on carbon nitride anchoring copper single-atom catalystsStructural characteristics and related characterization methods； And systematically expounded the light, electricity, photoelectric catalysisCarbon dioxide reduction mechanism and reaction pathway。 Finally, the existence of carbon nitride anchored copper single-atom catalysts in the light, electricity and photoelectric reduction of carbon dioxide is summarized at this stageChallenges and outlook, discussed future realizationsPossibilities of industrial production。 This review provides a reference for scientific research in the field of photoelectric, electrical and photoelectric carbon dioxide reduction.
Related paper information:
Lulu Li, Israr Masood ul Hasan, Farwa, Ruinan He, Luwei Peng, Nengneng Xu, Nabeel Khan Niazi, Jia-Nan Zhang, and Jinli Qiao. Copper as a single metal atom based photo-, electro- and photoelectrochemical catalyst decorated on carbon nitride surface for efficient CO2 reduction: A review. Nano Res. Energy 2022, DOI: 10.26599/NRE.2022.9120015.
As a sister journal of Nano Research, Nano Research Energy (ISSN: 2791-0091; e-ISSN: 2790-8119; Official website: https://www.sciopen.com/journal/2790-8119It was launched in March 2022 and co-edited by Professor Qu Liangti of Tsinghua University and Professor Chunyi Zhi of the City University of Hong Kong. Nano Research Energy is an international multidisciplinary, all-English open access journal, focusing on the cutting-edge research and application of nanomaterials and nanoscience technology in new energy-related fields, benchmarking against the top international energy journals, and committed to publishing high-level original research and review papers. Submissions are welcome, and APC fees will be waived until 2023. Please contact NanoResearchEnergy@tup.tsinghua.edu.cn for submissions.
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