Transforming MOFs for Energy Applications Using the Guest@MOF Concept

Abstract

As the world transitions from fossil fuels to clean energy sources in the coming decades, many technological challenges will require chemists and material scientists to develop new materials for applications related to energy conversion, storage, and efficiency. Because of their unprecedented adaptability, metal-organic frameworks (MOFs) will factor strongly in this portfolio. By utilizing the broad synthetic toolkit provided by the fields of organic and inorganic chemistry, MOF pores can be customized to suit a particular application. Of particular importance is the ability to tune the strength of the interaction between the MOF pores and guest molecules. By cleverly controlling these MOF-guest interactions, the chemist may impart new function into the Guest@MOF materials otherwise lacking in vacant MOF. Herein, we highlight the concept of the Guest@MOF as it relates to our efforts to develop these materials for energy-related applicatons. Our work in the areas of H2 and noble gas storage, hydrogenolysis of biomass, light-harvesting, and conductive materials will be discussed. Of relevance to light-harvesting applications, we report for the first time a postsynthetic modification strategy for increasing the loading of a light-sensitive electron-donor molecule in the pores of a functionalized MIL-101 structure. Through the demonstrated versatility of these approaches, we show that, by treating guest molecules as integral design elements for new MOF constructs, MOF science can have a significant impact on the advancement of clean energy technologies.

Defective Metal‐Organic Frameworks

“…We here like to refer to a conceptual article on guest@MOF systems, published by Allendorf and our group . Additionally, there are other illuminating articles that specifically address the use of MOFs in energy‐related applications, for electroacoustic or resistive sensing devices . Besides that, a roadmap for the integration of MOFs into electronic devices and chemical sensors was already proposed in 2011 and updated in 2017 .…”

Designing next generation of photon upconversion: Recent advances in organic triplet-triplet annihilation upconversion nanoparticles

“…In addition, precise control of the distance of the chromophore can efficiently avoid the aggregation -induced fluorescence quenching in the MOFs. [73][74][75][76][77][78][79][80] Harnessing the advantages of MOFs, one can begin the development of TTA-UC MOFs to create a new type of upconversion material. As shown in Figure 12, Park et al reported a low toxicity TTA-UC MOF and applied in in vivo bioimaging.…”

MOFs (METAL-ORGANIC FRAMEWORKS): UMA FASCINANTE CLASSE DE MATERIAIS INORGÂNICOS POROSOS

“…As propriedades físicas e químicas características das MOFs tornam-nas materiais relevantes para uma gama de aplicações. [164][165][166] Importantes e atuais trabalhos de referencia nas áreas de biomedicina, [167][168][169][170] fotônica, 28,171-173 adsorção 174,175 e separação de gases, 176,177 catálise, 26,[178][179][180] entre outras, [181][182][183] O hidrogênio pode vir a ser uma matriz energética muito eficiente que apresenta água como subproduto de sua combustão. Já o dióxido de carbono e o metano são os principais gases estufa causadores do aquecimento global.…”