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
Reads0
Chats0
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
Citations
More filters
Journal ArticleDOI
Boosting CH<sub>4</sub> selectivity in CO<sub>2</sub> electroreduction using a metallacycle-based porous crystal with biomimetic adaptive cavities
onovenystp,Dominique Chevalier +1 more
TL;DR: A metallacycle-based porous crystal with intrinsic cavities could efficiently steer CO 2 -to-CH 4 electrocatalytic conversion by the synergic effect of size-adaptivity and confined microenvironment as discussed by the authors .
Journal ArticleDOI
Modulation of *CHxO Adsorption to Facilitate Electrocatalytic Reduction of CO2 to CH4 over Cu-Based Catalysts.
Jing Zhao,Peng Zhang,Tenghui Yuan,Dongfang Cheng,Shiyu Zhen,Hui Gao,Tuo Wang,Zhi-Jian Zhao,Jinlong Gong +8 more
TL;DR: In this paper , a controllable electrodeposition approach to alloying Cu with oxophilic metal (M) to steer the reaction pathway toward CH4 was proposed, which achieved a CH4 Faradaic efficiency of 64.5% with the partial current density of 193.5 mA cm-2.
Journal ArticleDOI
Steering CO2 electroreduction selectivity towards CH4 and C2H4 on tannic acid-modified Cu electrode
TL;DR: The CO2 electroreduction (CO2RR) offers a promising way to address CO2 emission and high-value ultilizaiton but it remains challenging to steer the selectivity of products due to complicated reaction pathways as mentioned in this paper .
Journal ArticleDOI
Large-scale synthesis of low-cost 2D metal-organic frameworks for highly selective photocatalytic CO_2 reduction
Ning-Yu Huang,Zhengnan Chen,Feilong Hu,Chunli Shang,Wen-Jing Wang,Jia-Run Huang,Lei Li,Qiang Xu +7 more
Journal ArticleDOI
The Progress of Metal-Organic Framework for Boosting CO2 Conversion
TL;DR: In this article, metal-organic frameworks (MOFs) have shown potential for application in the area of catalysis due to their ultra-high specific surface area, structural versatility and designability as well as ease of modification and post-synthesis.
References
More filters
Journal ArticleDOI
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
Zhen Liu,Zongyang Lu,Guang Yang,Shisheng Huang,Guanglei Li,S. M. Feng,Yajing Liu,Jianan Li,Wenxia Yu,Yu Zhang,Jia Chen,Qiang Sun,Xingxu Huang,Xingxu Huang +13 more
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.
Related Papers (5)
Progress and Perspectives of Electrochemical CO2 Reduction on Copper in Aqueous Electrolyte
Stephanie A. Nitopi,Erlend Bertheussen,Søren Bertelsen Scott,Xinyan Liu,Albert K. Engstfeld,Albert K. Engstfeld,Sebastian Horch,Brian Seger,Ifan E. L. Stephens,Ifan E. L. Stephens,Karen Chan,Karen Chan,Christopher Hahn,Christopher Hahn,Jens K. Nørskov,Jens K. Nørskov,Jens K. Nørskov,Thomas F. Jaramillo,Thomas F. Jaramillo,Ib Chorkendorff +19 more