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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A New Strategy for Accelerating Dynamic Proton Transfer of Electrochemical CO2 Reduction at High Current Densities
Xinyue Wang,Shaohua Feng,Weichao Lu,Yingjie Zhao,Sixing Zheng,Wanzhen Zheng,Xiahan Sang,Lirong Zheng,Yu Xie,Zhongjian Li,Bin Yang,Lecheng Lei,Shaobin Wang,Yang Hou +13 more
Journal ArticleDOI
Atomic Co–N<sub>4</sub> and Co nanoparticles confined in COF@ZIF-67 derived core–shell carbon frameworks: bifunctional non-precious metal catalysts toward the ORR and HER
TL;DR: In this article , the core-shell structured carbon frameworks, containing uniform Co nanoparticles and atomic CoN 4 sites, were synthesized from TP-BPY-COF@ZIF-67 for the first time, which enable catalyzing ORR and HER with high activities.
Journal ArticleDOI
Atomic regulation of metal–organic framework derived carbon-based single-atom catalysts for the electrochemical CO2 reduction reaction
TL;DR: In this article, the main fabrication strategies of MOF-derived SACs, especially metal node strategy, coordination capture strategy and space restriction strategy, are introduced, and regulations of the coordination environment of central atoms, including symmetrical M−N4 atomic interfaces, asymmetrical M-Nx atomic interfaces and hetero-atom doped atomic interfaces are systematically discussed.
Journal ArticleDOI
A brief review of electrocatalytic reduction of CO2—Materials, reaction conditions, and devices
Journal ArticleDOI
Engineering Water Molecules Activation Center on Multisite Electrocatalysts for Enhanced CO2 Methanation.
Shenghua Chen,Zedong Zhang,Wenjun Jiang,Shishi Zhang,Jiexin Zhu,Liqiang Wang,Honghui Ou,Shahid Uz Zaman,L. Tan,Peng Zhu,Erhuan Zhang,Peng Jiang,Yaqiong Su,Dingsheng Wang,Yadong Li +14 more
TL;DR: In this paper , a novel tandem catalyst comprising Ir single-atom (Ir1)-doped hybrid Cu3N/Cu2O multisite that operates efficiently in converting CO2 to CH4 is presented.
References
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Structural absorption by barbule microstructures of super black bird of paradise feathers
TL;DR: Physical structure is known to contribute to the appearance of bird plumage through structural color and specular reflection, but a third mechanism, structural absorption, leads to low reflectance and super black color in birds of paradise feathers.
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Efficient generation of mouse models of human diseases via ABE- and BE-mediated base editing
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Journal ArticleDOI
CO2 Reduction at Low Overpotential on Cu Electrodes Resulting from the Reduction of Thick Cu2O Films
Christina W. Li,Matthew W. Kanan +1 more
TL;DR: Modified Cu electrodes were prepared by annealing Cu foil in air and electrochemically reducing the resulting Cu(2)O layers, which resulted in electrodes whose activities were indistinguishable from those of polycrystalline Cu and a higher level of activity than all previously reported metal electrodes evaluated under comparable conditions.
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.
Journal ArticleDOI
Carbon capture and conversion using metal–organic frameworks and MOF-based materials
TL;DR: This review provides a comprehensive account of significant progress in the design and synthesis of MOF-based materials, including MOFs, MOF composites and MOF derivatives, and their application to carbon capture and conversion.
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