Journal ArticleDOI
Highly Selective CO 2 Electroreduction to CH 4 by In Situ Generated Cu 2 O Single-Type Sites on a Conductive MOF: Stabilizing Key Intermediates with Hydrogen Bonding
Jun-Dong Yi,Ruikuan Xie,Zai-Lai Xie,Guo-Liang Chai,Tian-Fu Liu,Rui-Ping Chen,Yuan-Biao Huang,Rong Cao +7 more
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TLDR
Operando infrared spectroscopy and density functional theory (DFT) calculations reveal that the key intermediates involved in the formation CH 4 pathway are stabilized by the single active Cu 2 O(111) and hydrogen bonding, thus generating CH 4 instead of CO.Abstract:
It is still a great challenge to achieve high selectivity of CH4 in CO2 electroreduction reactions (CO2 RR) because of the similar reduction potentials of possible products and the sluggish kinetics for CO2 activation. Stabilizing key reaction intermediates by single type of active sites supported on porous conductive material is crucial to achieve high selectivity for single product such as CH4 . Here, Cu2 O(111) quantum dots with an average size of 3.5 nm are in situ synthesized on a porous conductive copper-based metal-organic framework (CuHHTP), exhibiting high selectivity of 73 % towards CH4 with partial current density of 10.8 mA cm-2 at -1.4 V vs. RHE (reversible hydrogen electrode) in CO2 RR. Operando infrared spectroscopy and DFT calculations reveal that the key intermediates (such as *CH2 O and *OCH3 ) involved in the pathway of CH4 formation are stabilized by the single active Cu2 O(111) and hydrogen bonding, thus generating CH4 instead of CO.read more
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Ultrastable Cu Catalyst for CO2 Electroreduction to Multicarbon Liquid Fuels by Tuning C−C Coupling with CuTi Subsurface
Fei Hu,Li Yang,Yawen Jiang,Chongxiong Duan,Xiaonong Wang,Longjiao Zeng,Xuefeng Lv,Delong Duan,Qi Liu,Tingting Kong,Jun Jiang,Ran Long,Yujie Xiong +12 more
TL;DR: In this paper, the coordinatively unsaturated Cu sites on amorphous CuTi alloy (a-CuTi@Cu) were used for electrocatalytic CO2 reduction to multicarbon (C2-4 ) liquid fuels.
Journal ArticleDOI
Monolithic NF@ZnO/Au@ZIF-8 photocatalyst with strong photo-thermal-magnetic coupling and selective-breathing effects for boosted conversion of CO2 to CH4
TL;DR: In this paper , a metal-organic-framework based monolithic photocatalyst that can simulate the respiratory process was synthesized to accelerate adsorption of CO2 and decoupling of CH4 during the photocatalytic reaction.
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Single-Atom Electrocatalysts for Multi-Electron Reduction of CO2.
TL;DR: In this article, a review of recent advances in how to design efficient single-atom electrocatalysts for multi-electron reduction of CO2, with emphasis on strategies in regulating the interactions between active sites and key reaction intermediates, is summarized.
Journal ArticleDOI
Progress and Challenges of Carbon Dioxide Reduction Reaction on Transition Metal Based Electrocatalysts
TL;DR: The capture and reduction of CO2 is one of the main causes of global warming, with the burning of fossil fuels being the main source of anthropogenic CO2 as discussed by the authors, and for this reason, the Capture and Reduction of CO 2 to V...
Journal ArticleDOI
Spatial Sites Separation Strategy to Fabricate Atomically Isolated Nickel Catalysts for Efficient CO2 Electroreduction
TL;DR: In this paper, a carbon-supported atomically isolated metal catalysts with maximized atomic efficiency is proposed. But the design of highly active catalysts remains a big challenge because the adjacent metal species are...
References
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Structural absorption by barbule microstructures of super black bird of paradise feathers
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CO2 Reduction at Low Overpotential on Cu Electrodes Resulting from the Reduction of Thick Cu2O Films
Christina W. Li,Matthew W. Kanan +1 more
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Journal ArticleDOI
Partially oxidized atomic cobalt layers for carbon dioxide electroreduction to liquid fuel
Shan Gao,Yue Lin,Xingchen Jiao,Yongfu Sun,Qiquan Luo,Wenhua Zhang,Dianqi Li,Jinlong Yang,Yi Xie +8 more
TL;DR: In this paper, the role of the two different catalytic sites of pure cobalt and coexisting domains of cobalt metal and cobalt oxide has been evaluated, showing that surface cobalt atoms of the atomically thin layers have higher intrinsic activity and selectivity towards formate production, at lower overpotentials.
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Carbon capture and conversion using metal–organic frameworks and MOF-based materials
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