4.7 Article

Carbon molecular-sieve membranes developed from a Troger's base polymer and possessing superior gas-separation performance

Related references

Note: Only part of the references are listed.
Article Chemistry, Physical

Advanced carbon molecular sieve membranes derived from molecularly engineered cross-linkable copolyimide for gas separations

Zhongyun Liu et al.

Summary: Reported are carbon molecular sieve (CMS) membranes derived from structurally engineered cross-linkable copolyimide, enabling precise molecular discrimination and scalability for energy-efficient gas separations. The CMS membranes with kinked backbones and cross-linkable backbones demonstrate improved gas separation performance due to controlled pyrolysis conditions. These membranes provide a versatile platform for challenging gas separations and hold promise for environmentally friendly applications.

NATURE MATERIALS (2023)

Article Engineering, Chemical

Fine tune gas separation property of intrinsic microporous polyimides and their carbon molecular sieve membranes by gradient bromine substitution/removal

Chao Ye et al.

Summary: By debromination assisted carbonization, carbon molecular sieve membranes (CMSMs) with remarkable gas separation properties were obtained from a series of brominated intrinsic microporous polyimides (PIM-PIs). The CMSM-550s exhibited smaller, more intensive, and higher percentage of ultra-micropores compared to their pristine PIM-PIs, resulting in higher permeability and selectivity. The 6FDBPI-550 showed unprecedented H2 permeability and selectivity that far exceeded the latest trade-off lines.

JOURNAL OF MEMBRANE SCIENCE (2023)

Article Engineering, Chemical

Carbon molecular sieve hollow fiber membranes derived from dip-coated precursor hollow fibers comprising nanoparticles

Yuhe Cao et al.

Summary: This study presents an economically viable method to fabricate composite nanoparticle-containing carbon molecular sieve hollow fiber membranes with excellent gas separation performance through a coating process.

JOURNAL OF MEMBRANE SCIENCE (2022)

Article Engineering, Chemical

Stable cellulose-based carbon molecular sieve membranes with very high selectivities

Tiago Araujo et al.

Summary: Carbon molecular sieve membranes (CMSMs) prepared from an ionic liquid regenerated cellulose precursor exhibit remarkable separation performance and stability, achieving high selectivities for different gas mixtures. Post-treatment with propylene has been shown to enhance the aging resistance of CMSMs, preserving their separation performance after exposure to ambient air for over 1 year.

JOURNAL OF MEMBRANE SCIENCE (2022)

Article Multidisciplinary Sciences

An integrated materials approach to ultrapermeable and ultraselective CO2 polymer membranes

Marius Sandru et al.

Summary: This study introduces a hybrid-integrated membrane strategy that combines improved permeability and selectivity for carbon dioxide separation. The membrane is chemically functionalized to enhance CO2 transport, and the method of fabrication is cost-effective and scalable. This research has great potential for practical applications in mitigating global climate change.

SCIENCE (2022)

Article Multidisciplinary Sciences

Tailoring sub-3.3 Å ultramicropores in advanced carbon molecular sieve membranes for blue hydrogen production

Leiqing Hu et al.

Summary: By doping polymers with thermolabile cross-linkers before low-temperature carbonization, the processability of the polymers can be retained and superior hydrogen/carbon dioxide separation properties can be achieved.

SCIENCE ADVANCES (2022)

Article Engineering, Chemical

Catalytic arene-norbornene annulation (CANAL) ladder polymer derived carbon membranes with unparalleled hydrogen/carbon dioxide size-sieving capability

Khalid Hazazi et al.

Summary: Hydrogen, an emerging energy source, has a wide range of applications and can be produced in conjunction with CO2. Carbon molecular sieve (CMS) membranes prepared by membrane technology show excellent gas separation performance for hydrogen/carbon dioxide separation, making them a promising solution for a more sustainable hydrogen economy.

JOURNAL OF MEMBRANE SCIENCE (2022)

Article Engineering, Chemical

High-performance carbon molecular sieving membrane derived from a novel hydroxyl-containing polyetherimide precursor for CO2 separations

Mengjie Hou et al.

Summary: In this study, a carbon molecular sieve (CMS) membrane with high CO2 separation performance was prepared using a unique precursor. By controlling the thermal treatment conditions, the membrane's pore structure and CO2 permeability were successfully improved, showing promising potential for practical applications.

JOURNAL OF MEMBRANE SCIENCE (2022)

Article Engineering, Chemical

Tailoring selective pores of carbon molecular sieve membranes towards enhanced N2/CH4 separation efficiency

Hyun Jung Yu et al.

Summary: The importance of controlling the effective pore size in a newly developed hybrid carbon molecular sieve matrix for enhanced N-2/CH4 selectivity is reported through experimental characterizations and density functional theory (DFT) calculations. A new class of CMS membranes with excellent N-2/CH4 selectivity is demonstrated by pyrolysis of a homogeneous blend. DFT calculations suggest that electron accumulation at SiOx phases hinders CH4 diffusion more than N-2, resulting in a smaller effective pore size and enhanced selectivity.

JOURNAL OF MEMBRANE SCIENCE (2021)

Article Multidisciplinary Sciences

Carbon hollow fiber membranes for a molecular sieve with precise-cutoff ultramicropores for superior hydrogen separation

Linfeng Lei et al.

Summary: The authors present a facile and scalable method for fabricating cellulose-based asymmetric carbon hollow fiber membranes with ultramicropores for superior hydrogen separation. The membranes do not require complex pretreatments and demonstrate high selectivity for hydrogen over other gas molecules.

NATURE COMMUNICATIONS (2021)

Article Engineering, Chemical

Benchmark CO2 separation achieved by highly fluorinated nanoporous molecular sieve membranes from nonporous precursor via in situ cross-linking

Zhenzhen Yang et al.

Summary: This study successfully developed an in situ cross-linking strategy to prepare molecular sieve membranes with fluorinated micropores using polystyrene as a precursor template, which exhibit excellent performance in CO2/N-2 separation.

JOURNAL OF MEMBRANE SCIENCE (2021)

Article Multidisciplinary Sciences

Ultra-selective molecular-sieving gas separation membranes enabled by multi-covalent-crosslinking of microporous polymer blends

Xiuling Chen et al.

Summary: Researchers have designed a porous polymer membrane with high permeability and selectivity through multi-crosslinking, surpassing traditional separation membrane limits. Adjusting reaction conditions can achieve ultra-selective gas separation.

NATURE COMMUNICATIONS (2021)

Article Chemistry, Multidisciplinary

Key Features of Polyimide-Derived Carbon Molecular Sieves

Wulin Qiu et al.

Summary: Carbon molecular sieve (CMS) membranes have impressive separation properties, and this study characterizes CMS with the simplest polyimide (PI) PMDA/pPDA to better understand the chemical and morphology structures. Comparisons were made with a CMS derived from a more conventional PI precursor, revealing the presence of various components in both types of CMS. The morphologies of CMS show similarities consistent with distributed molecular sieving plate-like structures, aiding in understanding the diverse CMS membrane separation performance.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Engineering, Chemical

Reduced Aging in Carbon Molecular Sieve Membranes Derived from PIM-1 and MOP-18

Whitney K. Cosey et al.

Summary: This study presents a novel strategy to mitigate physical aging in carbon molecular sieve membranes (CMSMs) by pillaring them with copper nanoparticles. The introduction of copper nanoparticles prevented the collapse of micropores, thus minimizing aging. Copper-pillared CMSMs showed essentially no decline in CH4 permeability, demonstrating a general approach to reducing physical aging in CMSMs.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2021)

Article Engineering, Chemical

CMS membranes from PBI/PI blends: Temperature effect on gas transport and separation performance

Jose Manuel Perez-Francisco et al.

JOURNAL OF MEMBRANE SCIENCE (2020)

Article Engineering, Chemical

High CO2 permeability of ceramic-carbonate dual-phase hollow fiber membrane at medium-high temperature

Tianjia Chen et al.

JOURNAL OF MEMBRANE SCIENCE (2020)

Article Engineering, Chemical

H2-selective Troger's base polymer based mixed matrix membranes enhanced by 2D MOFs

Jing Deng et al.

JOURNAL OF MEMBRANE SCIENCE (2020)

Article Engineering, Environmental

Carbon membranes for CO2 removal: Status and perspectives from materials to processes

Linfeng Lei et al.

CHEMICAL ENGINEERING JOURNAL (2020)

Article Chemistry, Applied

Ultraselective carbon molecular sieve membrane for hydrogen purification

Ruisong Xu et al.

JOURNAL OF ENERGY CHEMISTRY (2020)

Article Engineering, Chemical

Preparation of carbon molecular sieve membranes from an optimized ionic liquid-regenerated cellulose precursor

Sandra C. Rodrigues et al.

JOURNAL OF MEMBRANE SCIENCE (2019)

Article Engineering, Chemical

Troger's base mixed matrix membranes for gas separation incorporating NH2-MIL-53(Al) nanocrystals

Yanfang Fan et al.

JOURNAL OF MEMBRANE SCIENCE (2019)

Article Nanoscience & Nanotechnology

Thin Composite Carbon Molecular Sieve Membranes from a Polymer of Intrinsic Microporosity Precursor

Wojciech Ogieglo et al.

ACS APPLIED MATERIALS & INTERFACES (2019)

Article Chemistry, Multidisciplinary

Hyperaging Tuning of a Carbon Molecular-Sieve Hollow Fiber Membrane with Extraordinary Gas-Separation Performance and Stability

Wulin Qiu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

Article Chemistry, Multidisciplinary

Creation of Well-Defined Mid-Sized Micropores in Carbon Molecular Sieve Membranes

Yao Ma et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

Article Nanoscience & Nanotechnology

Unexpectedly Strong Size-Sieving Ability in Carbonized Polybenzimidazole for Membrane H2/CO2 Separation

Maryam Omidvar et al.

ACS APPLIED MATERIALS & INTERFACES (2019)

Article Chemistry, Physical

Next generation membranes -using tailored carbon

Oishi Sanyal et al.

CARBON (2018)

Article Chemistry, Multidisciplinary

Ultraselective Carbon Molecular Sieve Membranes with Tailored Synergistic Sorption Selective Properties

Chen Zhang et al.

ADVANCED MATERIALS (2017)

Editorial Material Multidisciplinary Sciences

Seven chemical separations to change the world

David S. Sholl et al.

NATURE (2016)

Article Engineering, Chemical

Propylene/Propane Mixture Separation Characteristics and Stability of Carbon Molecular Sieve Membranes

Xiaoli Ma et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2015)

Article Chemistry, Multidisciplinary

Nitrogen-doped carbon dots with heterogeneous multi-layered structures

Fengyi Du et al.

RSC ADVANCES (2014)

Article Engineering, Chemical

Fabrication and characterization of PPO/PVP blend carbon molecular sieve membranes for H2/N2 and H2/CH4 separation

Arun Kumar Itta et al.

JOURNAL OF MEMBRANE SCIENCE (2011)

Article Engineering, Chemical

CO2-CH4 permeation in high zeolite 4A loading mixed matrix membranes

Ryan T. Adams et al.

JOURNAL OF MEMBRANE SCIENCE (2011)

Review Chemistry, Multidisciplinary

Honeycomb Carbon: A Review of Graphene

Matthew J. Allen et al.

CHEMICAL REVIEWS (2010)

Article Engineering, Chemical

Aging study of carbon molecular sieve membranes

S. Lagorsse et al.

JOURNAL OF MEMBRANE SCIENCE (2008)

Article Engineering, Chemical

The upper bound revisited

Lloyd M. Robeson

JOURNAL OF MEMBRANE SCIENCE (2008)

Article Engineering, Chemical

High pressure CO2/CH4 separation using carbon molecular sieve hollow fiber membranes

DQ Vu et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2002)