Regulating C–C coupling in thermocatalytic and electrocatalytic CO<sub>x</sub>conversion based on surface science

Jiang, Yawen; Long, Ran; Xiong, Yujie

doi:10.1039/c9sc02014d

Cited by 39 publications

(19 citation statements)

References 100 publications

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“…[1] To date,i ntensive efforts have been devoted to hydrogenation of CO 2 to value-added C 2+ products (e.g.l ight olefins,a romatics,g asoline,a nd C 2+ alcohols). [2] However,s uch conversions are still very chal-lenging to achieve high space-time yields,due to the requirement of efficient coupling between the transformation of the thermodynamically-stable CO 2 molecules to more reactive C 1 intermediates (e.g. CO [3] and CH 3 OH [4] )and subsequent CÀC bond formation reactions in at andem manner.…”

Section: Introductionmentioning

confidence: 99%

Highly Selective Olefin Production from CO₂ Hydrogenation on Iron Catalysts: A Subtle Synergy between Manganese and Sodium Additives

et al. 2020

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Mn and Na additives have been widely studied to improve the efficiency of CO 2 hydrogenation to valuable olefins on Fe catalysts,b ut their effects on the catalytic properties and mechanism are still under vigorous debate. This study shows that Fe-based catalysts with moderate Mn and Na contents are highly selective for CO 2 hydrogenation to olefins,together with lowselectivities for both CO and CH 4 and muchimproved space-time olefin yields compared to state-ofthe-art catalysts.Combined kinetic assessment and quasi in situ characterizations further unveil that the sole presence of Mn suppresses the activity of Fe catalysts because of the close contact between Fe and Mn, whereas the introduction of Na mediates the Fe-Mn interaction and provides strong basic sites. This subtle synergy between Na and Mn sheds light on the importance of the interplay of multiple additives that could bring an enabling strategy to improve catalytic activity and selectivity.

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Section: Introductionmentioning

confidence: 99%

Highly Selective Olefin Production from CO₂ Hydrogenation on Iron Catalysts: A Subtle Synergy between Manganese and Sodium Additives

et al. 2020

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“…Recently, the electrochemical transformation has emerged as a powerful and green tool in synthetic chemistry . The high tunability by the applied potential or current makes it very suitable for various redox reactions . Among the transformations, the electrochemical reduction reactions are regarded as the most promising, including electrocatalytic water splitting, carbon dioxide reduction reaction, or nitrogen reduction reaction .…”

Section: Figurementioning

confidence: 99%

Electrocatalytic Deuteration of Halides with D₂O as the Deuterium Source over a Copper Nanowire Arrays Cathode

Liu

Han

et al. 2020

Angew Chem Int Ed

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Precise deuterium incorporation with controllable deuterated sites is extremely desirable. Here, a facile and efficient electrocatalytic deuterodehalogenation of halides using D 2 O as the deuteration reagent and copper nanowire arrays (Cu NWAs) electrochemically formed in situ as the cathode was demonstrated. A cross-coupling of carbon and deuterium free radicals might be involved for this ipso-selective deuteration. This method exhibited excellent chemoselectivity and high compatibility with the easily reducible functional groups (C=C, CC, C=O, C=N, CN). The CÀH to CÀD transformations were achieved with high yields and deuterium ratios through a one-pot halogenation-deuterodehalogenation process. Efficient deuteration of less-active bromide substrates, specific deuterium incorporation into top-selling pharmaceuticals, and oxidant-free paired anodic synthesis of high-value chemicals with low energy input highlighted the potential practicality.

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“…Indeed, many concepts and findings in thermal-driven CO 2 and even CO/CH 4 conversion can be borrowed for the development of catalytic sites for solar-driven applications, particularly in terms of forming CÀH and CÀC bonds. 5 In order for valueadded C 2+ products to be formed, the surface design of catalysts often has to combine multiple catalytically active sites featuring different functions. As elucidated in many thermal-based catalytic reactions, C=O cleavage, CÀH for-mation, and CÀC coupling-the three key fundamental steps in CO 2 conversion-can be achieved efficiently at different sites.…”

Section: Catalytically Active Sitesmentioning

confidence: 99%

Catalyst: How Material Chemistry Enables Solar-Driven CO2 Conversion

Kong

Low

Xiong

2020

Chem

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Tingting Kong obtained her PhD degree from Xi'an University of Science and Technology in 2017 and is currently a lecturer at Xi'an Shiyou University. Her research interest focuses on material design for photocatalytic CO 2 conversion. Jingxiang Low obtained his PhD degree from Wuhan University of Technology in 2018 and is currently a postdoctoral fellow at the University of Science and Technology of China (USTC). His research interest focuses on photocatalyst design for CO 2 reduction, nitrogen fixation, and methane conversion. Yujie Xiong is the Cheung Kong Chair Professor, deputy dean of the School of Chemistry and Materials Science at USTC, and director of the Division of Nanocatalysis and Energy Conversion at Hefei National Laboratory for Physical Sciences at the Microscale. His research interests include inorganic materials and devices for CO 2 reduction, nitrogen fixation, methane conversion, water splitting, and chemical production.

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Regulating C–C coupling in thermocatalytic and electrocatalytic CO_xconversion based on surface science

Abstract: This article outlines the recent advances in catalyst design for controlling C–C coupling in syngas conversion, CO2 hydrogenation and CO2 electroreduction from the viewpoint of surface science.

Cited by 39 publications

References 100 publications

Highly Selective Olefin Production from CO₂ Hydrogenation on Iron Catalysts: A Subtle Synergy between Manganese and Sodium Additives

Highly Selective Olefin Production from CO₂ Hydrogenation on Iron Catalysts: A Subtle Synergy between Manganese and Sodium Additives

Electrocatalytic Deuteration of Halides with D₂O as the Deuterium Source over a Copper Nanowire Arrays Cathode

Catalyst: How Material Chemistry Enables Solar-Driven CO2 Conversion

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Regulating C–C coupling in thermocatalytic and electrocatalytic COxconversion based on surface science

Abstract: This article outlines the recent advances in catalyst design for controlling C–C coupling in syngas conversion, CO2 hydrogenation and CO2 electroreduction from the viewpoint of surface science.

Cited by 39 publications

References 100 publications

Highly Selective Olefin Production from CO2 Hydrogenation on Iron Catalysts: A Subtle Synergy between Manganese and Sodium Additives

Highly Selective Olefin Production from CO2 Hydrogenation on Iron Catalysts: A Subtle Synergy between Manganese and Sodium Additives

Electrocatalytic Deuteration of Halides with D2O as the Deuterium Source over a Copper Nanowire Arrays Cathode

Catalyst: How Material Chemistry Enables Solar-Driven CO2 Conversion

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Product

Resources

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Regulating C–C coupling in thermocatalytic and electrocatalytic CO_xconversion based on surface science

Highly Selective Olefin Production from CO₂ Hydrogenation on Iron Catalysts: A Subtle Synergy between Manganese and Sodium Additives

Highly Selective Olefin Production from CO₂ Hydrogenation on Iron Catalysts: A Subtle Synergy between Manganese and Sodium Additives

Electrocatalytic Deuteration of Halides with D₂O as the Deuterium Source over a Copper Nanowire Arrays Cathode