Postsynthetic Modification of Zirconium Metal‐Organic Frameworks

Marshall, Ross J.; Forgan, Ross S.

doi:10.1002/ejic.201600394

Cited by 201 publications

(146 citation statements)

References 180 publications

(162 reference statements)

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“…[112,113] The components and characteristic properties (the CO 2 adsorption capacity and the HOMO-LUMO gap width) of MOF photocatalysts are summarized in Table 1 www.advmat.de www.advancedsciencenews.com [112,113] The components and characteristic properties (the CO 2 adsorption capacity and the HOMO-LUMO gap width) of MOF photocatalysts are summarized in Table 1 www.advmat.de www.advancedsciencenews.com…”

Section: Pure Mofs As Photocatalystsmentioning

confidence: 99%

Metal–Organic‐Framework‐Based Catalysts for Photoreduction of CO₂

2018

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Photoreduction of CO into reusable carbon forms is considered as a promising approach to address the crisis of energy from fossil fuels and reduce excessive CO emission. Recently, metal-organic frameworks (MOFs) have attracted much attention as CO photoreduction-related catalysts, owing to their unique electronic band structures, excellent CO adsorption capacities, and tailorable light-absorption abilities. Recent advances on the design, synthesis, and CO reduction applications of MOF-based photocatalysts are discussed here, beginning with the introduction of the characteristics of high-efficiency photocatalysts and structural advantages of MOFs. The roles of MOFs in CO photoreduction systems as photocatalysts, photocatalytic hosts, and cocatalysts are analyzed. Detailed discussions focus on two constituents of pure MOFs (metal clusters such as Ti-O, Zr-O, and Fe-O clusters and functional organic linkers such as amino-modified, photosensitizer-functionalized, and electron-rich conjugated linkers) and three types of MOF-based composites (metal-MOF, semiconductor-MOF, and photosensitizer-MOF composites). The constituents, CO adsorption capacities, absorption edges, and photocatalytic activities of these photocatalysts are highlighted to provide fundamental guidance to rational design of efficient MOF-based photocatalyst materials for CO reduction. A perspective of future research directions, critical challenges to be met, and potential solutions in this research field concludes the discussion.

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Section: Pure Mofs As Photocatalystsmentioning

confidence: 99%

Metal–Organic‐Framework‐Based Catalysts for Photoreduction of CO₂

2018

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“…[22] Very recently, UiO-66-SO 3 H was prepared by partial replacement of BDC in UiO-66 with 2monosulfo-benzene-1,4-dicarboxylate (MSBDC) and its activity in the conversion of glucose to fructose and HMF in water was studied. Post-synthetic modification is a viable strategy to introduce sulfonic groups.…”

Section: Uio-66-so 3 H As Solid Acidmentioning

confidence: 99%

Engineering UiO‐66 Metal Organic Framework for Heterogeneous Catalysis

et al. 2019

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frameworks (MOFs) are currently attracting considerable attention as heterogeneous catalysts at moderate temperatures, mainly for liquid-phase reactions. Since structural stability is one of the major concerns for the use of MOFs in catalysis, particularly considering that frequently some of the reported MOF materials are very unstable, the interest in this area has been focused on those MOFs exhibiting the highest structural robustness, UiO-66 being among the most widely used. Two introductory sections deal with the synthesis, structure and main properties of UiO-66, including its remarkable thermal (up to 350°C) and chemical (aqueous solution in a wide pH range) stability. The main body of the review summarizes those examples of using UiO-66 in catalysis grouped according to the nature of the active sites, starting with the use of UiO-66 as Lewis acids. In this section, emphasis has been made in the recent strategies to create structural defects in a controlled way that generate Lewis acidity. Other sections cover examples illustrating substituted terephthalate as active sites and the evidence that there is a synergy between acid and basic sites in close proximity that make some of these UiO-66 with substituents at the linker to act as dual acid-base catalysts. Other sections are focused on the use of UiO-66 as hosts of metal nanoparticles, metal oxides and other host, remarking the influence that the nature of UiO-66 and the possible presence of substituents in the framework play on the activity of the incorporated guest. The last section summarizes the current state of the art in the use of UiO-66 in catalysis and provides our views on future developments regarding the application of UiO-66 in industrial processes.

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“…15 The decoration can be accomplished via A LD i n M OFs (AIM) 16–18 or s olvothermal deposition i n M OFs (SIM) 19–22 —as well as by AIM and SIM in combination. 23 Depending, of course, on their specific chemical composition, the resulting MOF-supported clusters or single metal ions can be rendered competent for photocatalytic H 2 generation, 24 electrocatalytic O 2 production, 25 solution-phase alkene epoxidation, 26, 27 and gas-phase ethylene hydrogenation and oligomerization, 13, 21, 28 hexene polymerization, 20 and propane oxidative dehydrogenation, 29 among other reactions.…”

Section: Introductionmentioning

confidence: 99%

Size effect of the active sites in UiO-66-supported nickel catalysts synthesized via atomic layer deposition for ethylene hydrogenation

Peters

Liu

et al. 2017

Inorg. Chem. Front.

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Ni(II) ions have been deposited on the Zr6 nodes of a metal–organic framework (MOF), UiO-66, via an ALD-like process (ALD = atomic layer deposition). By varying the number of ALD cycles, three Ni-decorated UiO-66 materials were synthesized. A suite of physical methods has been used to characterize these materials, indicating structural and high-surface-area features of the parent MOF are retained. Elemental analysis via X-ray photoelectron spectroscopy (XPS) indicates that the anchored Ni ions are mainly on surface and near-surface MOF defect sites. Upon activation, all three materials are catalytic for ethylene hydrogenation, but their catalytic activities significantly vary, with the largest clusters displaying the highest per-nickel-atom activity. The study highlights the ease and effectiveness ALD in MOFs (AIM) for synthesizing, specifically, UiO-66-supported NiyOx catalysts.

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Postsynthetic Modification of Zirconium Metal‐Organic Frameworks

Cited by 201 publications

References 180 publications

Metal–Organic‐Framework‐Based Catalysts for Photoreduction of CO₂

Metal–Organic‐Framework‐Based Catalysts for Photoreduction of CO₂

Engineering UiO‐66 Metal Organic Framework for Heterogeneous Catalysis

Size effect of the active sites in UiO-66-supported nickel catalysts synthesized via atomic layer deposition for ethylene hydrogenation

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Postsynthetic Modification of Zirconium Metal‐Organic Frameworks

Cited by 201 publications

References 180 publications

Metal–Organic‐Framework‐Based Catalysts for Photoreduction of CO2

Metal–Organic‐Framework‐Based Catalysts for Photoreduction of CO2

Engineering UiO‐66 Metal Organic Framework for Heterogeneous Catalysis

Size effect of the active sites in UiO-66-supported nickel catalysts synthesized via atomic layer deposition for ethylene hydrogenation

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Metal–Organic‐Framework‐Based Catalysts for Photoreduction of CO₂

Metal–Organic‐Framework‐Based Catalysts for Photoreduction of CO₂