Covalently anchoring covalent organic framework on carbon nanotubes for highly efficient electrocatalytic CO2 reduction
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TL;DR: In this paper, por-based covalent organic frameworks (Por-COF) were anchored on carbon nanotubes for efficient electrocatalytic CO2 reduction reaction (CO2RR).
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Abstract: Porphyrin-based covalent organic frameworks (Por-COF) nanosheets were vertically anchored on carbon nanotubes (CNT) with covalent connection for efficient electrocatalytic CO2 reduction reaction (CO2RR). The CNT not only acts as ideal carriers for the dispersion of Pro-COF but also facilitates electron transfer along porphyrin planes to immobilized metal active sites. As a result, covalently linked MWCNT-Por-COF-M (M: Co, Ni, Fe) display improved electrocatalytic CO2-to-CO activity and selectivity compared to pure Por-COF-M and MWCNT@Por-COF-M without covalent connection between two components. In particular, MWCNT-Por-COF-Co exhibits superior activity (FECO: 99.3%), higher partial current density and good durability in 0.5 M KHCO3 by H-type cell, while MWCNT-Por-COF-Cu exhibits the highest CH4 faradaic efficiency of 71.2% in 1.0 M KOH by flow cell. The results of HRTEM and Auger spectrum revealed that the high performance of MWCNT-Por-COF-Cu could be attributed to the generated Copper-based nanoclusters during the electrocatalytic CO2RR process.
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Citations
Electrochemical Reduction of Carbon Dioxide to Multicarbon (C2+) Products: Challenges and Perspectives
TL;DR: In this paper , a promising and attractive strategy to achieve carbon neutrality for sustainable chemical production was developed as a promising approach for achieving carbon neutrality in the chemical industry by using electrocatalytic CO2 reduction.
Porphyrin and phthalocyanine based covalent organic frameworks for electrocatalysis
TL;DR: A systematic overview of the application of por-and phthalocyanine-based COFs in the electrocatalytic reactions including CO2 reduction reaction (CO2RR), hydrogen evolution reaction (HER), oxygen evolution reaction and ORR are presented in this paper .
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Construction of Catalytic Covalent Organic Frameworks with Redox-Active Sites for the Oxygen Reduction and the Oxygen Evolution Reaction.
Minghao liu,Sijia Liu,Cheng-Xing Cui,Qiyang Miao,Yue He,Xuewen Li,Qing Xu,Gaofeng Zeng +7 more
- 14 Oct 2022
TL;DR: In this paper , the authors constructed bifunctional COFs for ORR and OER by integrating diarylamine derivatives into the Co-porphyrin based frameworks, which showed higher catalytic activities than that of the COF without redox-active units.
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In Situ Reconstruction of Cu–N Coordinated MOFs to Generate Dispersive Cu/Cu2O Nanoclusters for Selective Electroreduction of CO2 to C2H4
TL;DR: In this article , highly active Cu/Cu2O nanoclusters were produced via in situ electrochemical reconstruction using Cu-N coordinated MOFs as precursors for the highly selective C2H4 synthesis, showing a Faradaic efficiency of 70.2 ± 1.7% with a partial current density of 12.38 mA·cm 2 at −1.03 V vs RHE in the CO2RR.
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Integrating Enrichment, Reduction And Oxidation Sites in One System for Artificial Photosynthetic Diluted CO2 Reduction.
Yan Yang,Ya Wang,Luyu Shao,Hongying Dong,Meng Lu,Long-Zhang Dong,Ya-Qian Lan,Feng-Ming Zhang +7 more
TL;DR: In this article , a Zn-Salen-based covalent organic framework (Zn-S-COF) with oxidation and reductive sites was synthesized, then ionic liquids (ILs) were loaded into the pores.
74
References
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Conductive phthalocyanine-based metal-organic framework as a highly efficient electrocatalyst for carbon dioxide reduction reaction
TL;DR: In this paper, a two-dimensional (2D) Ni-phthalocyanine-based MOF (NiPc-Ni(NH)4) constructed by 2,3,9,10,16,17,23,24-octaaminophthalocyaninato nickel(II) and nickel ions attained high electrical conductivity due to the high overlap of d-π conjugation orbitals between the nickel node and o-phenylenediamine.
85
Coupling CsPbBr 3 Quantum Dots with Covalent Triazine Frameworks for Visible‐Light‐Driven CO 2 Reduction
TL;DR: In this article, a new photocatalytic system based on CTFs and perovskite quantum dots was proposed for visible-light-driven CO2 reduction, which highlights the potential of perovsite-based photocatalyst for solar fuel applications.
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Chloroplast-like porous bismuth-based core–shell structure for high energy efficiency CO2 electroreduction
TL;DR: In this paper, a series of chloroplast-like porous bismuth-based core-shell (CPBC) materials have been designed for electrochemical CO2 reduction reaction (CO2RR) to formate.
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