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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Synergistic Lewis Acid and Pd Active Sites of Metal-Organic Framework for High Efficient Carbonylation of Methyl Nitrite to Dimethyl Carbonate
Hanying Wu,Ye-Yan Qin,Yizhou Xiao,Jianshan Chen,Rong Guo,Siqi Wu,Lei Zhang,Jian Zhang,Yuan-Gen Yao +8 more
TL;DR: In this article , the first MOF UiO-66 was presented for constructing efficient catalysts with improved performance in many fields, such as energy efficiency and robustness to high temperature.
Journal ArticleDOI
Synergistic effect of Co/Ni bimetallic metal-organic nanostructures for enhanced electrochemical energy storage.
TL;DR: In this paper , a series of cobalt-nickel bimetallic MOFs (Co/Ni-MOFs) were synthesized by the Co2+ substitution into Ni-MOF ({Ni3(OH)2(tdc),2(H2O)4}n, H2tdc = 2,5-thiophenedicarboxylic acid).
Journal ArticleDOI
Z-scheme Bi/AgBiS2/P25 for enhanced CO2 photoreduction to CH4 and CO with photo-themal synergy
TL;DR: A ternary Bi/AgBiS2/P25 has been successfully designed by a one-step solvothermal treatment for enhanced photocatalytic CO2 reduction as mentioned in this paper.
Journal ArticleDOI
Spatial Well-defined Bimetallic 2D Polymers with Single Layer Thickness for Electrocatalytic Oxygen Evolution Reaction.
Dejuan Fa,Dingjia Wang,Xin Pan,Guangyuan Feng,Jiangyan Yuan,Qingqing Luo,Yaru Song,Xuejiao J. Gao,Ling Yang,Shengbin Lei,Wen-Bin Hu,Yanhong Tao +11 more
TL;DR: In this paper , a rational design of bimetallic Ni, Co two-dimensional polymer model OER catalyst was proposed to decouple the intrinsic activity of active sites from other factors.
Journal ArticleDOI
Promoting Electrocatalytic CO2 Reduction to CH4 by Copper Porphyrin with Donor-Acceptor Structures.
Ping'er Yu,Ximeng Lv,Qihao Wang,Hao Huang,Weijun Weng,Chen Peng,Linjuan Zhang,Gengfeng Zheng +7 more
TL;DR: In this article , a donor-acceptor modified Cu porphyrin (CuTAPP) is developed, in which amino groups are linked to donate electrons toward the central CuN4 site to enhance the CO2-to-CH4 electroreduction performance.
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.
Journal ArticleDOI
Efficient generation of mouse models of human diseases via ABE- and BE-mediated base editing
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TL;DR: In vivo generation of mouse models carrying clinically relevant mutations using C→T and A→G editors is demonstrated, making it feasible to model and potentially cure relevant genetic diseases.
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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