Journal Article10.1021/ACS.LANGMUIR.7B04212
Porous Liquid: A Stable ZIF-8 Colloid in Ionic Liquid with Permanent Porosity
Shengjun Liu,Jiandang Liu,Xudong Hou,Tingting Xu,Jing Tong,Junxiang Zhang,Bangjiao Ye,Bo Liu +7 more
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TL;DR: Two essential challenges, stable colloid formation and porosity retention, have been overcome to prepare MOF-based porous liquid and this porous liquid could provide a new material platform for liquid-bed-based gas separations.
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Abstract: We reported an example of metal–organic framework (MOF)-based porous liquid by dispersing ZIF-8 ({Zn(mim)2}, mim = 2-methylimidazole) nanocrystallites in ionic liquid (IL) of [Bpy][NTf2] (N-butyl pyridinium bis(trifluoromethyl sulfonyl)imide). Two essential challenges, stable colloid formation and porosity retention, have been overcome to prepare MOF-based porous liquid. Preventing ZIF-8 nanocrystals from aggregation before dispersing is vital to form a stable ZIF-8 colloid in IL via enhancing the interaction between ZIF-8 and IL. The resultant ZIF-8–[Bpy][NTf2] colloid is able to be stable over months without precipitating. [Bpy][NTf2] with larger ion sizes cannot occupy pores in ZIF-8, leaving the ZIF-8 cage empty for enabling access by guest molecules. The porosity of this porous liquid system was verified by positron (e+) annihilation lifetime spectroscopy and I2 adsorption in ZIF-8 in the colloid. MOF-based porous liquids could provide a new material platform for liquid-bed-based gas separations.
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Citations
Postsynthetic Modification: An Enabling Technology for the Advancement of Metal-Organic Frameworks
Mark Kalaj,Seth M. Cohen +1 more
TL;DR: Both covalent and coordinative PSM have been used to create hierarchal MOFs, MOF-based porous liquids, and other unusual MOF materials, and the view on future directions of the field is highlighted.
Metal–organic frameworks (MOFs) beyond crystallinity: amorphous MOFs, MOF liquids and MOF glasses
TL;DR: The field of metal-organic frameworks (MOFs) has been incorrectly believed to be purely crystalline as mentioned in this paper, however, non-crystalline MOFs (amorphous MOFs, MOF liquids, and MOF glasses) are starting to emerge as alternative materials, beyond the dictatorial domain of crystalline materials.
366
Solution processable metal-organic frameworks for mixed matrix membranes using porous liquids.
Alexander Knebel,Alexander Knebel,Anastasiya Bavykina,Shuvo Jit Datta,Lion Sundermann,Luis Garzón-Tovar,Yury Lebedev,Sara Durini,Rafia Ahmad,Sergey M. Kozlov,Genrikh Shterk,Madhavan Karunakaran,Ionela Daniela Carja,Dino Simic,Irina Weilert,Manfred Klüppel,Ulrich Giese,Luigi Cavallo,Magnus Rueping,Mohamed Eddaoudi,Jürgen Caro,Jürgen Caro,Jorge Gascon +22 more
TL;DR: It is demonstrated that metal–organic frameworks, a type of highly crystalline porous solid, can be made solution processable via outer surface functionalization using N-heterocyclic carbene ligands, and a surface modification is reported that allows porous liquid formation and so synthesis of highly loaded and mechanically robust mixed matrix membranes.
Porous Ionic Liquids or Liquid Metal–Organic Frameworks?
TL;DR: Porous liquids prepared from 5 % of ZIF-8 in a phosphonium-based ionic liquid are capable of absorbing reversibly up to 150 -% more nitrogen and 100% more methane than the pure ionicLiquid.
168
Porous Metal–Organic Framework Liquids for Enhanced CO2 Adsorption and Catalytic Conversion
Yu-Huang Zou,Yu-Huang Zou,Yuan-Biao Huang,Duan-Hui Si,Qi Yin,Qiu-Jin Wu,Zixiang Weng,Rong Cao +7 more
TL;DR: In this paper, surface ionization of an imidazolium-functionalized framework with a sterically hindered poly(ethylene glycol) sulfonate (PEGS) canopy was used for the fabrication of a MOF liquid (Im-UiO-PL).
158
References
Exceptional chemical and thermal stability of zeolitic imidazolate frameworks
Kyo Sung Park,Zheng Ni,Adrien P. Côté,Jae Yong Choi,Rudan Huang,Fernando J. Uribe-Romo,Hee K. Chae,Michael O'Keeffe,Omar M. Yaghi +8 more
TL;DR: Study of the gas adsorption and thermal and chemical stability of two prototypical members, ZIF-8 and -11, demonstrated their permanent porosity, high thermal stability, and remarkable chemical resistance to boiling alkaline water and organic solvents.
6.6K
Zr-based metal-organic frameworks: design, synthesis, structure, and applications.
TL;DR: Advances in Zr-MOFs since 2008 are summarized and reviewed from three aspects: design and synthesis, structure, and applications to provide guidance for the in-depth investigation of MOFs towards practical applications.
2.1K