Metal–organic frameworks as heterogeneous photocatalysts: advantages and challenges

Nasalevich, Maxim A.; Veen, Monique A. van der; Kapteijn, Freek; Gascón, Jorge

doi:10.1039/c4ce00032c

Cited by 438 publications

(259 citation statements)

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“…27 Low charge mobility is another limitation in most photocatalytic MOFs. 37 Fortunately, the MOF's porous nature can compensate for it and allows for the diffusion of reactants and redox carriers throughout the crystallite. In addition, limitations by light penetration and light scattering should also be considered in MOF photocatalytic systems.…”

Section: Discussionmentioning

confidence: 99%

“…However, nowadays it is well accepted that, in general, they are insulator materials. 32,37,38 This is due to, on the one hand, the inadequate energy level alignment of ligand and metal orbitals. Typically, organic ligands possess HOMO (highest occupied molecular orbital)-LUMO (lowest unoccupied molecular orbital) gaps above 3 eV.…”

Section: Electronic Structure Of the Main Photocatalytic Mofsmentioning

confidence: 99%

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Understanding metal–organic frameworks for photocatalytic solar fuel production

et al. 2017

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The fascinating chemical and physical properties of MOFs have recently stimulated exploration of their application for photocatalysis. Despite the intense research effort, the efficiency of most photocatalytic MOFs for solar fuel generation is still very modest. In this highlight we analyse the current status of the field and stress the potential of advanced spectroscopic techniques to gain structural and mechanistic insight and hence support the future development of MOFs to harvest and store solar energy.

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Section: Discussionmentioning

confidence: 99%

Section: Electronic Structure Of the Main Photocatalytic Mofsmentioning

confidence: 99%

Understanding metal–organic frameworks for photocatalytic solar fuel production

et al. 2017

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“…5,12,13 Distinct from traditional inorganic materials, MOFs can be reliably synthesized as extended hierarchical structures from well-dened molecular building blocks via crystal engineering.…”

Section: 4mentioning

confidence: 99%

Co@NH₂-MIL-125(Ti): cobaloxime-derived metal–organic framework-based composite for light-driven H₂ production

Nasalevich

Becker

Ramos‐Fernández

et al. 2015

Energy Environ. Sci.

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Co@NH2-MIL-125(Ti): Cobaloxime-derived Metal-Organic Framework-based Composite for Light-driven H2 Production Nasalevich, M.A.; Becker, R.; Ramos-Fernandez, E.V.; Castellanos, S.; Veber, S.L.; Fedin, M.V.; Kapteijn, F.; Reek, J.N.H.; van der Vlugt, J.I.; Gascon, J. Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. We present a synthetic strategy for the efficient encapsulation of a derivative of a well-defined cobaloxime proton reduction catalyst within a photoresponsive metal-organic framework (NH 2 -MIL-125(Ti)). The resulting hybrid system Co@MOF is demonstrated to be a robust heterogeneous composite material. Furthermore, Co@MOF is an efficient and fully recyclable noble metal-free catalyst system for lightdriven hydrogen evolution from water under visible light illumination. Broader contextThe development of new strategies for the efficient valorization of solar light is one the most important challenges we face nowadays. Among the different possibilities, dihidrogen molecule is considered as one of the possible future energy carriers allowing for CO 2 -free energy cycle. Although the photocatalytic water splitting was the rst photocatalytic reaction to be discovered, no photocatalytic systems for this reaction have been industrially applied. This is both due to the fact that most discovered catalysts rely on the use of noble metals and to the low activities achieved so far by alternative catalysts. The application in this eld of materials such as metal-organic frameworks (MOFs) can be a game changer in this research eld. MOFs have been proven to be photoactive and their optical properties can be easily tuned towards visible light operation. The current challenge lies in the development of more appropriate active sites for the desired photocatalytic cycle. In this manuscript, we report a new strategy to achieve this goal. By introducing a derivative of the well-known molecular Co-based electrocatalyst Co-dioxime-diimine into the pores of a photo-active NH 2 -MIL-125(Ti) following a 'Ship-in-a-bottle' strategy, we were able to synthesize a highly active photocatalyst composite free of noble metals, and fully recyclable. Because of the novelty and the implications of this work, we feel that it might appeal to the interdisciplinary readership of energy and environmental science. The journal has previously been an important forum for the research topics touched upon in this paper (new earth abundant materials and their application in (photo) catalysis and hydrogen evolution from water under visible light illumination). We would be glad t...

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“…In combination with the large pores and high surface area, this explains why these materials are considered for many potential applications, in particular in the fields of catalysis, gas storage, chemical sensing and separation [6][7][8]. More recently, the research domain of MOFs is extended toward light-based applications, more specifically their use in photocatalysis [9,10] and as luminescent materials [11].…”

Section: Introductionmentioning

confidence: 99%

Vibrational fingerprint of the absorption properties of UiO-type MOF materials

et al. 2016

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Metal–organic frameworks as heterogeneous photocatalysts: advantages and challenges

Abstract: The use of metal organic frameworks as photocatalysts is critically reviewed and their main advantages and challenges are evaluated.

Cited by 438 publications

References 83 publications

Understanding metal–organic frameworks for photocatalytic solar fuel production

Understanding metal–organic frameworks for photocatalytic solar fuel production

Co@NH₂-MIL-125(Ti): cobaloxime-derived metal–organic framework-based composite for light-driven H₂ production

Vibrational fingerprint of the absorption properties of UiO-type MOF materials

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Metal–organic frameworks as heterogeneous photocatalysts: advantages and challenges

Abstract: The use of metal organic frameworks as photocatalysts is critically reviewed and their main advantages and challenges are evaluated.

Cited by 438 publications

References 83 publications

Understanding metal–organic frameworks for photocatalytic solar fuel production

Understanding metal–organic frameworks for photocatalytic solar fuel production

Co@NH2-MIL-125(Ti): cobaloxime-derived metal–organic framework-based composite for light-driven H2 production

Vibrational fingerprint of the absorption properties of UiO-type MOF materials

Contact Info

Product

Resources

About

Co@NH₂-MIL-125(Ti): cobaloxime-derived metal–organic framework-based composite for light-driven H₂ production