Switching on the Photocatalysis of Metal–Organic Frameworks by Engineering Structural Defects

Ma, Xiaoxuan; Wang, Li; Zhang, Qun; Jiang, Hai‐Long

doi:10.1002/anie.201907074

Cited by 397 publications

(255 citation statements)

References 60 publications

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“…Moreover, the study of defect engineering as the way to improve the photocatalytic performance of MOFs is still rare. 30,31 Herein, we wish to report a facile method to create defects in NH 2 -UiO-66(Zr). Via simply tuning the crystallization temperature, a series of defective NH 2 -UiO-66(Zr) samples were obtained in the present of hydrochloric acid as a modulator and then their photocatalytic activities in CO 2 reduction were also examined.…”

Section: Introductionmentioning

confidence: 99%

Temperature modulation of defects in NH₂-UiO-66(Zr) for photocatalytic CO₂ reduction

et al. 2019

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Temperature modulation of defects in NH₂-UiO-66(Zr) for photocatalytic CO₂ reduction

et al. 2019

RSC Adv.

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“…[28][29][30][31][32][33][34] However, even the carbon materials with good electrical conductivity could facilitate the transformation of the electrons and power the redox reaction in Li-S batteries, the vast majority of common carbon materials are amorphous and structurally uncertain, resulting in uneven characters of the materials and unclear mechanism of the interaction between host materials and sulfur. Nowadays, crystalline metal-organic frameworks (MOFs) with precise structure, [35,36] diverse species, [37][38][39][40][41] and adjustable aperture size [42] have been utilized as the potential cathode host for Li-S batteries. [17,43] MOFs with open metal sites can anchor the soluble PSs and thus suppress the shuttle effects, endowing the MOF-based Li-S batteries with high specific capacity and satisfactory cycling stability.…”

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confidence: 99%

Cationic Covalent‐Organic Framework as Efficient Redox Motor for High‐Performance Lithium–Sulfur Batteries

Liu

Chen

Wang

et al. 2020

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The shuttle effect of soluble lithium polysulfides (LiPSs) leads to the rapid decay of sulfur cathode, severely hindering the practical applications of lithium‐sulfur (Li‐S) batteries. To this point, a covalent‐organic framework (COF) with proper cationic sites, which can be utilized as the cathode host of high‐performance Li–S batteries, is reported. The chemical sulfur anchoring within micropores effectively suppresses the dissolution of LiPSs into the electrolyte. During the discharge step, the cationic sites can accept electrons from anode and deliver them to polysulfides to facilitate the polysulfides' disintegration. Meanwhile, the cationic sites can receive electrons from polysulfides and then send them to the anode during the charge process, which promotes the polysulfides oxidation. Thus, both experiments and computational modeling show that the cationic COF can effectively inhibit the shuttle effect of LiPSs and improve the batteries' performances. Compared with electrically neutral COFs, the cationic COF‐based batteries show much better cycling stability even at high current density, for instance, a high specific capacity of 468 mA h g−1 is retained after 300 cycles at a current density of 4.0 C.

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“…In 2019, Jiang and co-workers conducted an experiment about the influence of defects in UiO-66-NH 2 on photocatalysis. [112] Forgan and co-workers explored the defect-controlled UiO-66 for anticancer drug delivery. [113] Redox-active PdS x nanoparticles can be incorporated in the defected pores of UiO-66, thus exhibited unique semihydrogenation catalytic properties as reported by Wu and co-workers.…”

Section: Microregulation Of Defectsmentioning

confidence: 99%

Recent Progress on Microfine Design of Metal–Organic Frameworks: Structure Regulation and Gas Sorption and Separation

et al. 2020

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costume designing, penetrates everywhere in our daily lives. As indicated in the definition, the most important two points in the design are understanding "how something will look, work, etc." and being able to "draw plans, make models, etc." For the prior point, it requires in-depth research on the basic subjects related to it, such as physics to architectural design. As for the latter, it requires a lot of practice and experience accumulation. In scientific research, the design of new materials also follows the same rules. At first, the advent of a new material generally comes from occasional discovery. After appropriate understanding of the structure, synthesis method, and mechanism, we can attain a certain degree of design and targeted synthesis. Promptly, with the ongoing maturity of design theory and synthesis methods, further development on the functionalization and applications will come along. From "discovery" to "design" to "development," every leap through the stage has important scientific problems to be solved and, among which, the microfine design is an essential part of any new materials, especially for microporous materials, in the process from design to development. Metal-organic frameworks (MOFs) or porous coordination polymers (PCPs) are a new class of crystalline hybrid porous materials encompassing organic linkers and inorganic metal moieties/clusters. [1-9] Due to their excellent structural designability and tunable pore system, they have attracted extensive attention in academia and industry alike and explored in various key applications pertaining to gas storage/separation, [10-16] catalysis, [17-20] luminescence, [21-23] biomedicine, [24-27] proton conduction, [28-30] etc. Different from other traditional porous materials (zeolites, activated carbons, etc.), the inherent diversity of MOFs is more suitable for on-demand targeted design, and the intrinsic hybrid feature comprised of inorganic and organic components enriches the prospect applications of MOFs. The assembly concepts based on novel secondary building units (SBUs) and different topologies enabled MOFs to flourish in the last two decades. Furthermore, the introduction of the molecular building block (MBB) and the supermolecular building block (SBB) approaches have led to the rational design of MOFs, and continuous progress in synthetic methods has also bestowed scientists control over these intricate self-assembly Metal-organic frameworks (MOFs) have emerged as an important and unique class of functional crystalline hybrid porous materials in the past two decades. Due to their modular structures and adjustable pore system, such distinctive materials have exhibited remarkable prospects in key applications pertaining to adsorption such as gas storage, gas and liquid separations, and trace impurity removal. Evidently, gaining a better understanding of the structure-property relationship offers great potential for the enhancement of a given associated MOF property either by structural adjustments via isoreticular chemistry or by the ...

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Switching on the Photocatalysis of Metal–Organic Frameworks by Engineering Structural Defects

Cited by 397 publications

References 60 publications

Temperature modulation of defects in NH₂-UiO-66(Zr) for photocatalytic CO₂ reduction

Temperature modulation of defects in NH₂-UiO-66(Zr) for photocatalytic CO₂ reduction

Cationic Covalent‐Organic Framework as Efficient Redox Motor for High‐Performance Lithium–Sulfur Batteries

Recent Progress on Microfine Design of Metal–Organic Frameworks: Structure Regulation and Gas Sorption and Separation

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Switching on the Photocatalysis of Metal–Organic Frameworks by Engineering Structural Defects

Cited by 397 publications

References 60 publications

Temperature modulation of defects in NH2-UiO-66(Zr) for photocatalytic CO2 reduction

Temperature modulation of defects in NH2-UiO-66(Zr) for photocatalytic CO2 reduction

Cationic Covalent‐Organic Framework as Efficient Redox Motor for High‐Performance Lithium–Sulfur Batteries

Recent Progress on Microfine Design of Metal–Organic Frameworks: Structure Regulation and Gas Sorption and Separation

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Temperature modulation of defects in NH₂-UiO-66(Zr) for photocatalytic CO₂ reduction

Temperature modulation of defects in NH₂-UiO-66(Zr) for photocatalytic CO₂ reduction