Rational design of mixed-matrix metal-organic framework membranes for molecular separations

被引：301

作者：

Datta, Shuvo Jit ^{[1
,2
]}

Mayoral, Alvaro ^{[3
,4
,5
]}

Bettahalli, Narasimha Murthy Srivatsa ^{[1
]}

Bhatt, Prashant M. ^{[1
,2
]}

Karunakaran, Madhavan ^{[1
,7
]}

Carja, Ionela Daniela ^{[2
]}

Fan, Dong ^{[6
]}

Mileo, Paulo Graziane M. ^{[6
]}

Semino, Rocio ^{[6
]}

Maurin, Guillaume ^{[6
]}

Terasaki, Osamu ^{[3
,4
]}

Eddaoudi, Mohamed ^{[1
,2
]}

机构：

[1] King Abdullah Univ Sci & Technol KAUST, Adv Membrane & Porous Mat Ctr, Div Phys Sci & Engn, Thuwal 239556900, Saudi Arabia

[2] KAUST, Div Phys Sci & Engn, Funct Mat Design Discovery & Dev FMD3, Adv Membrane & Porous Mat Ctr, Thuwal 239556900, Saudi Arabia

[3] ShanghaiTech Univ, Ctr High Resolut Electron Microscopy, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China

[4] ShanghaiTech Univ, Shanghai Key Lab High Resolut Electron Microscopy, Shanghai 201210, Peoples R China

[5] Univ Zaragoza, Inst Nanociencia & Mat Aragon, Lab Microscopias Avanzadas, CSIC, Zaragoza 50009, Spain

[6] Univ Montpellier, Inst Charles Gerhardt Montpellier ICGM, ENSCM, CNRS, F-34095 Montpellier, France

[7] Council Sci & Ind Res CSIR, Natl Aerosp Labs, Ctr Carbon Fiber & Prepregs, Bengaluru 560017, India

来源：

SCIENCE | 2022年 / 376卷 / 6597期

关键词：

GAS-SEPARATION; CO2/CH4; SEPARATION; CHEMICAL SEPARATIONS; COMPOSITE MEMBRANES; POLYIMIDE MEMBRANES; NEXT-GENERATION; FORCE-FIELD; PERFORMANCE; NANOSHEETS; POLYMER;

D O I：

10.1126/science.abe0192

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Conventional separation technologies to separate valuable commodities are energy intensive, consuming 15% of the worldwide energy. Mixed-matrix membranes, combining processable polymers and selective adsorbents, offer the potential to deploy adsorbent distinct separation properties into processable matrix. We report the rational design and construction of a highly efficient, mixed-matrix metal-organic framework membrane based on three interlocked criteria: (i) a fluorinated metal-organic framework, AlFFIVE-1-Ni, as a molecular sieve adsorbent that selectively enhances hydrogen sulfide and carbon dioxide diffusion while excluding methane; (ii) tailoring crystal morphology into nanosheets with maximally exposed (001) facets; and (iii) in-plane alignment of (001) nanosheets in polymer matrix and attainment of [001]-orientedmembrane. The membrane demonstrated exceptionally high hydrogen sulfide and carbon dioxide separation from natural gas under practical working conditions. This approach offers great potential to translate other key adsorbents into processable matrix.

引用

页码：1080 / +

页数：78

共 140 条

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