Growth of Au Nanoparticles on 2D Metalloporphyrinic Metal‐Organic Framework Nanosheets Used as Biomimetic Catalysts for Cascade Reactions

Huang, Ying; Zhao, Meiting; Han, Shi‐Kui; Lai, Zhuangchai; Yang, Jian; Tan, Chaoliang; Ma, Qinglang; Lu, Qipeng; Chen, Junze; Zhang, Xiao; Zhang, Zhicheng; Li, Bing; Chen, Bin; Zong, Yun; Zhang, Hua

doi:10.1002/adma.201700102

Cited by 413 publications

(284 citation statements)

References 38 publications

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“…In this new 2D ZnTCPP SURMOF, [38][39][40] the paddle-wheel Zn 2 (COO) 4 metal nodes are connected by the tetratopic TCPP ligands, forming layers which are stacked perpendicular to the substrate in an AB packing fashion (Figure 1c,d). Note, that in this structure the PW units are located directly above the center of the macrocycles of the previous layer ( Figure 1c and Figure S1, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

van der Waals Epitaxial Growth of 2D Metal–Porphyrin Framework Derived Thin Films for Dye‐Sensitized Solar Cells

Wang

Chen

Haldar

et al. 2018

Adv Materials Inter

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nature, which cannot meet the increasing demand for its broad applications in DSSCs. Thus, there is a huge interest in Pt-free materials for CE fabrication, such as inorganic semiconductors, [5] carbon materials, [6] conductive organic polymers, [7] and so on. [8,9] Metal-organic frameworks (MOFs) represent a class of porous coordination polymers that consist of organic ligands linker by metal ions to form crystalline assemblies, [10,11] which have been widely investigated for their attractive physical and chemical properties. [12,13] Recently, the tunable functionality of MOFs has allowed these porous materials as precursors or sacrificial templates for the preparation of electrode materials in DSSCs. [14,15] In particular, porphyrin-based MOFs (also called metal-porphyrin frameworks) [16] have been demonstrated to exhibit tunable optical, electrical, and photophysical properties, [17][18][19] which in particular suggest applications in DSSCs. However, up to now, employing metal-porphyrin frameworks for CE materials in DSSCs has not been reported.When aiming to use the potential of MOFs for electrical, electrochemical, and electronic applications, MOF thin films [20][21][22] prepared by a layer-by-layer (lbl) liquid-phase epitaxial (LPE) procedure have attracted huge interest. These surfacemounted MOFs or SURMOFs are assembled by a sequence of simple immersion processes, subsequently into solution of the metal source and the organic ligand. They exhibit a number of interesting properties, including controllable thickness, crystallinity, high degree of orientation, and homogeneous surface. So far, the lbl-approach has been successfully used to realize several types of SURMOFs, [23] e.g., HKUST-1 (Cu 3 (BTC) 2 , BTC = benzene-1,3,5-tri-carboxylate), SURMOF-2, Zn(2-methylimidazolate) 2 (ZIF-8), etc. [23][24][25] These SUR-MOFs are epitaxially grown on appropriately functionalized substrates by coordination bonding between metal ions and organic ligands. The growth of SURMOFs based on lbl protocols involving noncovalent interactions (such as van der Waals, hydrogen bonding, and other weak interactions, etc.) has not yet been studied. When using porphyrinic ligands, such SUR-MOFs are expected to have interesting applications in catalysis, electronic devices, and in photovoltaics. [26][27][28][29][30][31][32][33][34] Herein, we report a layer-by-layer epitaxial growth strategy for preparing SURMOFs with a layered structure. 2D sheets consisting of paddle-wheel (PW) units linked by porphyrin linkers are stacked by the interaction between layers being of van der Waals type. X-ray diffraction (XRD) data reveal that layer-by-layer deposition on appropriately functionalized substrates yields In this work, monolithic, crystalline, porous, and oriented porphyrin thin films are grown using a novel van der Waals layer-by-layer (lbl) epitaxial growth protocol, yielding an unusual AB-stacking motif of these interesting macrocycles units. Subsequently, these surface-mounted metal-organic frameworks (SURMOFs) are transformed by th...

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Section: Resultsmentioning

confidence: 99%

van der Waals Epitaxial Growth of 2D Metal–Porphyrin Framework Derived Thin Films for Dye‐Sensitized Solar Cells

Wang

Chen

Haldar

et al. 2018

Adv Materials Inter

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“…[213] Especially, previously reported LD MOF-based composites normally exhibited enhanced performances, which are arised from the successful combination of advantages of both LD MOFs and other functional materials. [214] To date, a variety of rationally designed LD MOF-based composites, such as MIL-88 rod@ZIF-8 composite, [215] Fe-MOF NP/ Ni-MOF nanosheet composite, [216] and Au NP/Cu-TCPP(Fe) nanosheet composite, [59] have been prepared via various methods, such as in-situ reduction method, epitaxial growth method, etc. [214] To date, a variety of rationally designed LD MOF-based composites, such as MIL-88 rod@ZIF-8 composite, [215] Fe-MOF NP/ Ni-MOF nanosheet composite, [216] and Au NP/Cu-TCPP(Fe) nanosheet composite, [59] have been prepared via various methods, such as in-situ reduction method, epitaxial growth method, etc.…”

Section: Synthesis Of Ld Mof-based Compositesmentioning

confidence: 99%

“…[59] In addition to hybridizing MOFs with inorganic nanomaterials, the construction of MOF/organic material composites has also been demonstrated. [59] In addition to hybridizing MOFs with inorganic nanomaterials, the construction of MOF/organic material composites has also been demonstrated.…”

Section: Ld Mof/non-mof Compositesmentioning

confidence: 99%

“…[125] Moreover, 2D MOF nanosheets have been also widely used in catalysis. [59,165,302] Recently, Lin and co-workers reported a series of 2D metal-organic layers, i.e., Fe-TPY/ Zr-BTB MOL, [64] CoCl 2 /Hf-TPY MOL, [178] FeBr 2 /Hf-TPY MOL, [178] which are efficient heterogeneous catalysts for various organic reactions, including hydrosilylation of terminal olefins, CH amination benzylic, CH borylation. [301] Zr-porphyrinic MOF nanosheets with thickness of ≈1.48 nm exhibited excellent photocatalytic performance for the oxidation of 1,5-dihydroxynaphthalene, which is owing to their highly exposed active sites and unique properties of porphyrin units.…”

Section: Other Catalysismentioning

confidence: 99%

“…[41][42][43][44][45][46][47] More recently, LD MOFs have attracted intensive interest and been investigated in various applications. [57][58][59] Owing to their unique structures, LD MOFs are promising for a variety of applications, including gas adsorption and separation, heterogeneous catalysis, energy storage and conversion, and so on (Figure 1). Besides, the intrinsic characteristics of MOFs allow the facile tuning of their microstructures and properties for LD MOFs.…”

Section: Introductionmentioning

confidence: 99%

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Structural Engineering of Low‐Dimensional Metal–Organic Frameworks: Synthesis, Properties, and Applications

et al. 2019

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Low‐dimensional metal–organic frameworks (LD MOFs) have attracted increasing attention in recent years, which successfully combine the unique properties of MOFs, e.g., large surface area, tailorable structure, and uniform cavity, with the distinctive physical and chemical properties of LD nanomaterials, e.g., high aspect ratio, abundant accessible active sites, and flexibility. Significant progress has been made in the morphological and structural regulation of LD MOFs in recent years. It is still of great significance to further explore the synthetic principles and dimensional‐dependent properties of LD MOFs. In this review, recent progress in the synthesis of LD MOF‐based materials and their applications are summarized, with an emphasis on the distinctive advantages of LD MOFs over their bulk counterparties. First, the unique physical and chemical properties of LD MOF‐based materials are briefly introduced. Synthetic strategies of various LD MOFs, including 1D MOFs, 2D MOFs, and LD MOF‐based composites, as well as their derivatives, are then summarized. Furthermore, the potential applications of LD MOF‐based materials in catalysis, energy storage, gas adsorption and separation, and sensing are introduced. Finally, challenges and opportunities of this fascinating research field are proposed.

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Synthesis of MOF ‐Supported Nanoparticles and Their Interest in Catalysis

Zhan

Zeng

2021

Nanoparticles in Catalysis

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Growth of Au Nanoparticles on 2D Metalloporphyrinic Metal‐Organic Framework Nanosheets Used as Biomimetic Catalysts for Cascade Reactions

Cited by 413 publications

References 38 publications

van der Waals Epitaxial Growth of 2D Metal–Porphyrin Framework Derived Thin Films for Dye‐Sensitized Solar Cells

van der Waals Epitaxial Growth of 2D Metal–Porphyrin Framework Derived Thin Films for Dye‐Sensitized Solar Cells

Structural Engineering of Low‐Dimensional Metal–Organic Frameworks: Synthesis, Properties, and Applications

Synthesis of MOF ‐Supported Nanoparticles and Their Interest in Catalysis

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