Chemical and Thermal Stability of Isotypic Metal–Organic Frameworks: Effect of Metal Ions

Kang, In Joong; Khan, Nazmul Abedin; Haque, Enamul; Jhung, Sung Hwa

doi:10.1002/chem.201100316

Cited by 276 publications

(179 citation statements)

References 62 publications

(71 reference statements)

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“…A c c e p t e d M a n u s c r i p t 9 the strong inertness of Cr [32]. As uniformly distributed -SO 3 H groups and ionic bond between -SO 3 -and Ag + , the distribution of silver(I) is relatively homogeneous.…”

Section: Characterization Of Mofsmentioning

confidence: 99%

Enhanced removal of iodide from water induced by a metal-incorporated porous metal–organic framework

Zhao

Han

et al. 2015

Applied Surface Science

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Section: Characterization Of Mofsmentioning

confidence: 99%

Enhanced removal of iodide from water induced by a metal-incorporated porous metal–organic framework

Zhao

Han

et al. 2015

Applied Surface Science

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“…Increasing the conjugation of organic ligand can aid in the formation of MOFs with hydrophilic pores, or that can be used for light absorbing or sensing applications. [30][31][32][33][34][35][36][37][38][39] Ligands such as H4TCPB have been incorporated into MOFs, allowing for selective uptake of p-xylene over other isomers such as m-xylene. [35] While porphyrin based MOFs (Al-PMOF) have been used to harvest light for water reduction.…”

Section: Ligand Design In Mofsmentioning

confidence: 99%

Biologically derived metal organic frameworks

Anderson

Stylianou

2017

Coordination Chemistry Reviews

135

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Metal organic frameworks (MOFs) are extended structures composed of a network of organic ligands and metal ions or clusters connected to each other via coordination bonds. The numerous choices of organic ligands and metal coordination geometries have led to the construction of porous MOFs with various compositions, network topologies, pore sizes and shapes and they possess high surface areas and low densities. The structures of MOFs can be tailor-tuned in such a way that any desired ligand or/and metal ion can be incorporated; this has given to researchers the advantage of designing MOFs for a targeted application. Within this review, we overview recent examples of a sub-class of MOFs namely biologically derived MOFs (bio-MOFs), made of multifunctional and commercially available biologically derived ligands (bio-ligands) such as: amino acids, peptides, nucleobases and saccharides and focus on their coordination chemistry with a variety of metals. Central to this review are four tables detailing the coordination modes of bio-ligands to metals, along with a visual representation of the bio-MOF that is subsequently formed. Through the detail analysis of these structures, we highlight the structural impact of these ligands on the structure, and their contribution to the MOFs properties and applications. Finally, we showcase the potential of bio-MOFs in several research areas such as CO2 capture, separation, catalysis, drug delivery and sensing.

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“…29 In general, MOFs with Al-carboxylate coordination tend to exhibit very high chemical and thermal stability. 30,31 In ref. 29, the experimental optical spectra of Al-PMOF resembles that of the isolated porphyrin, which confers the material an almost molecular behaviour.…”

Section: Introductionmentioning

confidence: 99%

Porphyrin-based metal-organic frameworks for solar fuel synthesis photocatalysis: band gap tuning via iron substitutions

et al. 2017

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Photocatalysts based on metal-organic frameworks (MOFs) are very promising due to a combination of high tuneability and convenient porous structure. Introducing porphyrin units within MOFs is a potential route to engineer these natural photosynthesis molecular catalysts into artificial photosynthesis heterogeneous catalysts. Using computer simulations based on density functional theory, we explore how to modify the electronic structure of porphyrin-based MOFs to make them suitable for the photocatalysis of solar fuel synthesis via water splitting or carbon dioxide reduction. In particular, we have investigated the effect that Fe substitutions have on the electronic properties of porphyrin-based metal organic frameworks. By aligning the electron levels with a vacuum reference, we show that Fe at the porphyrin metal centre has the effect of slightly raising the position of the valence band edge, whereas Fe at the octahedral metal node has the ability to significantly lower the position of the conduction band edge on the absolute scale. Iron is therefore a very useful dopant to engineer the band structure and alignment of these MOFs. We find that the porphyrin-based structure with Al in the octahedral sites and Zn in the porphyrin centres has a band gap that is slightly too wide to take advantage of visible-light solar radiation, while the structure with Fe in the octahedral sites has bandgaps that are too narrow for water splitting photocatalysis. We then show that the optimal composition is achieved by partial substitution of Al by Fe at the octahedral sites, while keeping Zn at the porphyrin centres. Our study demonstrates that porphyrinbased MOFs can be engineered to display intrinsic photocatalytic activity in solar fuel synthesis reactions.

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Chemical and Thermal Stability of Isotypic Metal–Organic Frameworks: Effect of Metal Ions

Cited by 276 publications

References 62 publications

Enhanced removal of iodide from water induced by a metal-incorporated porous metal–organic framework

Enhanced removal of iodide from water induced by a metal-incorporated porous metal–organic framework

Biologically derived metal organic frameworks

Porphyrin-based metal-organic frameworks for solar fuel synthesis photocatalysis: band gap tuning via iron substitutions

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