Creating Giant Secondary Building Layers via Alkali-Etching Exfoliation for Precise Synthesis of Metal–Organic Frameworks

Li, Lan; Yi, Jun‐Dong; Fang, Zhibin; Wang, Xu‐Sheng; Liu, Nan; Chen, Yanan; Liu, Tian‐Fu; Cao, Rong

doi:10.1021/acs.chemmater.9b02375

Cited by 38 publications

(28 citation statements)

References 40 publications

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“…6c). In a typical study, Zn-TRZ-TDA (TDA = 2,5-thiophenedicarboxylic acid, TRZ = 1,2,4-triazole), a 3D bulk MOF consisting of Zn-TRZ layers connected with each other by TDA, was etched with sodium hydroxide in methanol-water system, and Zn-TRZ nanosheets were obtained as expected 291 . In addition, stepwise expansion has been observed in some layered MOFs, which enables the exfoliation of MOFs in a layernumber-controlled fashion.…”

Section: D Metal-organic Frameworkmentioning

confidence: 90%

Recent Progress on Two-Dimensional Materials

Chang¹,

Chen²,

Chen³

et al. 2021

Acta Physico Chimica Sinica

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312

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Research on two-dimensional (2D) materials has been explosively increasing in last seventeen years in varying subjects including condensed matter physics, electronic engineering, materials science, and chemistry since the mechanical exfoliation of graphene in 2004. Starting from graphene, 2D materials now have become a big family with numerous members and diverse categories. The unique structural features and physicochemical properties of 2D materials make them one class of the most appealing candidates for a wide range of potential applications.In particular, we have seen some major breakthroughs made in the field of 2D materials in last five years not only in developing novel synthetic methods and exploring new structures/properties but also in identifying innovative applications and pushing forward commercialisation. In this review, we provide a critical summary on the recent progress made in the field of 2D materials with a particular focus on last five years. After a brief background 物理化学学报 Acta Phys. -Chim. Sin. 2021, 37 (12), 2108017 (3 of 151) introduction, we first discuss the major synthetic methods for 2D materials, including the mechanical exfoliation, liquid exfoliation, vapor phase deposition, and wet-chemical synthesis as well as phase engineering of 2D materials belonging to the field of phase engineering of nanomaterials (PEN). We then introduce the superconducting/optical/magnetic properties and chirality of 2D materials along with newly emerging magic angle 2D superlattices. Following that, the promising applications of 2D materials in electronics, optoelectronics, catalysis, energy storage, solar cells, biomedicine, sensors, environments, etc. are described sequentially. Thereafter, we present the theoretic calculations and simulations of 2D materials. Finally, after concluding the current progress, we provide some personal discussions on the existing challenges and future outlooks in this rapidly developing field.

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Section: D Metal-organic Frameworkmentioning

confidence: 90%

Recent Progress on Two-Dimensional Materials

Chang¹,

Chen²,

Chen³

et al. 2021

Acta Physico Chimica Sinica

Self Cite

312

119

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“…2D nanosheet structures have aroused tremendous research interest owing to their unique structural merits, such as readily accessible active sites on their surface and shortening the distance between the substrates and active sites. [91,92] Our group developed a novel robust 2D porphyrinbased MOF (PMOF) nanosheet including titanium oxo clusters through a facial solvothermal method for photocatalytic H 2 production. [93] The photocatalytic reaction over PMOF is a typical LMCT process.…”

Section: D Nanosheet Structuresmentioning

confidence: 99%

Titanium‐Based MOF Materials: From Crystal Engineering to Photocatalysis

et al. 2020

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Titanium (Ti)‐based metal–organic frameworks (MOFs) have attracted intensive attention due to the low toxicity, high earth's crust abundance, and unique photocatalytic properties of Ti elements. Great efforts have been devoted to the synthesis of novel architectures and their potential applications involving photocatalysis. However, Ti‐MOFs are still very scarce owing to their challenges in controlling the Ti chemistry in the reaction system. Until now, some significant results have been achieved, which may shed new insight into the future investigation of Ti‐MOFs. Herein, some representative researches in Ti‐MOFs are summarized and reviewed from the following four aspects: first, various synthetic strategies for preparing Ti‐MOFs are introduced; second, diverse structures containing multi‐connected ligands are presented in detail; third, the potential photocatalytic applications of Ti‐based MOFs involving H2 production, CO2 reduction, H2O2 production, N2 fixation, remediation of organic and inorganic pollutants, as well as organic transformation reaction and photocatalytic sensors are discussed; finally, perspectives on current challenges and emerging opportunities in this research field are discussed. Through summarizing this specific type of MOF, this review is expected to stimulate researchers’ interest for in‐depth investigation of novel structures synthesis, as well as new applications and concepts in these intriguing fields.

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“…Recently, Cao and workers took advantage of the differences in dative bond strength between carboylate ligands and azolate ligands to partially deconstruct mixed-ligand metal–organic frameworks [ 67 ]. The authors synthesized a metal–organic framework from a Zn(II) source and a mixture of H 2 Me 4 bpz and 1,4-benzenedicarboxylate ligands, and then used a pH 13 ammonia solution to dissolve the Zn–carboxylate bonds but not the Zn–pyrazolate bonds.…”

Section: Recent Advancement Of Bipyrazole Synthesesmentioning

confidence: 99%

Section: Figures and Schemesmentioning

confidence: 99%

Homocoupling Reactions of Azoles and Their Applications in Coordination Chemistry

2020

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Pyrazole, a member of the structural class of azoles, exhibits molecular properties of interest in pharmaceuticals and materials chemistry, owing to the two adjacent nitrogen atoms in the five-membered ring system. The weakly basic nitrogen atoms of deprotonated pyrazoles have been applied in coordination chemistry, particularly to access coordination polymers and metal-organic frameworks, and homocoupling reactions can in principle provide facile access to bipyrazole ligands. In this context, we summarize recent advances in homocoupling reactions of pyrazoles and other types of azoles (imidazoles, triazoles and tetrazoles) to highlight the utility of homocoupling reactions in synthesizing symmetric bi-heteroaryl systems compared with traditional synthesis. Metal-free reactions and transition-metal catalyzed homocoupling reactions are discussed with reaction mechanisms in detail.

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Creating Giant Secondary Building Layers via Alkali-Etching Exfoliation for Precise Synthesis of Metal–Organic Frameworks

Cited by 38 publications

References 40 publications

Recent Progress on Two-Dimensional Materials

Recent Progress on Two-Dimensional Materials

Titanium‐Based MOF Materials: From Crystal Engineering to Photocatalysis

Homocoupling Reactions of Azoles and Their Applications in Coordination Chemistry

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