Covalent organic frameworks based on Schiff-base chemistry: synthesis, properties and potential applications

Segura, José L.; Mancheño, María J.; Zamora, Félix

doi:10.1039/c5cs00878f

Cited by 1,091 publications

(708 citation statements)

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“…Covalent organic frameworks (COFs), 1 a variety of crystalline porous materials that are composed of light elements, have drawn considerable attention in the past decade due to their versatile applications in gas storage and separation, 2 catalysis, 3 sensing, 4 drug delivery, 5 and electronic devices. 6 Compared to other porous organic materials, such as conjugated microporous polymers (CMPs), 7 porous polymer networks (PPNs), 8 and porous aromatic frameworks (PAFs), 9 COFs allow for the atomically precise control of their architectures by changing the structure of their building blocks.…”

Section: Introductionmentioning

confidence: 99%

Regulating the topology of 2D covalent organic frameworks by the rational introduction of substituents

et al. 2017

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Section: Introductionmentioning

confidence: 99%

Regulating the topology of 2D covalent organic frameworks by the rational introduction of substituents

et al. 2017

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“…[12][13][14] However, despite the low potentials offered by catalytic electrodes, the cost of electrodes is not always viable when upscaled to industrial levels. [17][18][19] Thanks to the aforementioned proprieties, performing CO 2 reduction using molecularly defined compounds offer several advantages compared to classical solid-state counterparts. [13,16] The tunable nature and electronic characteristics of molecular catalysts give access to a large variety of catalysts with high activity, selectivity, and durability, as well as their ability to be integrated into sophisticated nanoassemblies.…”

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confidence: 99%

Recent Trends, Benchmarking, and Challenges of Electrochemical Reduction of CO₂ by Molecular Catalysts

Elouarzaki

Kannan

Jose

et al. 2019

Advanced Energy Materials

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provides a promising alternative to hydrocarbon sources for petrochemical feedstock. Thanks to the electrochemical nature of the CO 2 conversion to fuels and chemicals, the electrical energy invested to convert CO 2 in the form of a chemical fuel can be stored and redistributed using established supply chains for future use. Additionally, the integration of renewable energy systems (green electricity) into the grid can potentially create a carbon neutral energy cycle, and when driven by solar energy, offers a completely renewable energy cycle or negative carbon technology. Converting CO 2 electrochemically into compounds with high energy densities, such as alcohols (methanol, ethanol), formates, and CO, represents a form of energy storage and is also adaptable to demand response or energy arbitrage technologies. [3][4][5][6][7] The recoverable energy density of the chemicals that can be converted from CO 2 is substantially higher than most battery technologies.Given CO 2 electroreduction's immense economic and environmental potential, it has been the subject of much research activity over the past decades. [8][9][10][11] One of the greatest challenges of reducing CO 2 in an electrochemical cell is overcoming the immense energy barrier required to do so; the single electron reduction of CO 2 to CO 2 −˙, a common step in many CO 2 reduction mechanisms, requires an applied potential of −1.97 V measured versus standard hydrogen electrode (SHE). To alleviate this problem, many catalytic cathodes have been developed to avoid this intermediate and to reroute the reduction mechanism through alternate pathways requiring much lower applied potentials (a necessity if CO 2 electroreduction is to be implemented at industrial scale). [12][13][14] However, despite the low potentials offered by catalytic electrodes, the cost of electrodes is not always viable when upscaled to industrial levels. [15,16] Therefore, recent research trends in electrocatalytic reduction of CO 2 have been shifting toward the development of molecular catalysts that can exist as either solutes in electrolytes or can be surface-confined on electrodes. [13,16] The tunable nature and electronic characteristics of molecular catalysts give access to a large variety of catalysts with high activity, selectivity, and durability, as well as their ability to be integrated into sophisticated nanoassemblies. [17][18][19] Thanks to the aforementioned proprieties, performing CO 2 reduction using molecularly defined compounds offer several advantages compared to classical solid-state counterparts. Molecular catalysts usually exhibit well-defined homogeneous and/or CO 2 reduction using molecular catalysts is a key area of study for achieving electrical-to-chemical energy storage and feedstock chemical synthesis. Compared to classical metallic solid-state catalysts, these molecular catalysts often result in high performance and selectivity, even under unfavorable aqueous environments. This review considers the recent state-of-the-art molecular catalysts for CO 2 electro...

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“…[2][3][4] In this interest, the Schiff base, which is the condensation product of aldehyde (or ketone) and amine-containing compounds, 5,6 seems to be a viable ligand for sensing metal ions. 4,7,8 Schiff bases have shown several biological activities such as antibacterial, antifungal, antimalarial, anti-inammatory, and antipyretic.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Sb³⁺sensor based on 1,1′-(-(naphthalene-2,3-diylbis(azanylylidene))bis(methanylylidene))bis(naphthalen-2-ol)/nafion/glassy carbon electrode assembly by electrochemical approach

et al. 2018

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Covalent organic frameworks based on Schiff-base chemistry: synthesis, properties and potential applications

Cited by 1,091 publications

References 178 publications

Regulating the topology of 2D covalent organic frameworks by the rational introduction of substituents

Regulating the topology of 2D covalent organic frameworks by the rational introduction of substituents

Recent Trends, Benchmarking, and Challenges of Electrochemical Reduction of CO₂ by Molecular Catalysts

Fabrication of Sb³⁺sensor based on 1,1′-(-(naphthalene-2,3-diylbis(azanylylidene))bis(methanylylidene))bis(naphthalen-2-ol)/nafion/glassy carbon electrode assembly by electrochemical approach

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Covalent organic frameworks based on Schiff-base chemistry: synthesis, properties and potential applications

Cited by 1,091 publications

References 178 publications

Regulating the topology of 2D covalent organic frameworks by the rational introduction of substituents

Regulating the topology of 2D covalent organic frameworks by the rational introduction of substituents

Recent Trends, Benchmarking, and Challenges of Electrochemical Reduction of CO2 by Molecular Catalysts

Fabrication of Sb3+sensor based on 1,1′-(-(naphthalene-2,3-diylbis(azanylylidene))bis(methanylylidene))bis(naphthalen-2-ol)/nafion/glassy carbon electrode assembly by electrochemical approach

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Recent Trends, Benchmarking, and Challenges of Electrochemical Reduction of CO₂ by Molecular Catalysts

Fabrication of Sb³⁺sensor based on 1,1′-(-(naphthalene-2,3-diylbis(azanylylidene))bis(methanylylidene))bis(naphthalen-2-ol)/nafion/glassy carbon electrode assembly by electrochemical approach