Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Facilely Cross-Linking Polybenzimidazole with Polycarboxylic Acids to Improve H2/CO2 Separation Performance

Journal Article · · ACS Applied Materials and Interfaces
 [1];  [2];  [2];  [3];  [2]
  1. State Univ. of New York (SUNY), Buffalo, NY (United States); University at Buffalo, SUNY
  2. State Univ. of New York (SUNY), Buffalo, NY (United States)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Polybenzimidazole (PBI) with a strong size-sieving ability exhibits attractive H2/CO2 separation properties for blue H2 production and CO2 capture. Herein, we report that PBI can be facilely cross-linked with polycarboxylic acids, oxalic acid (OA), and trans-aconitic acid (TaA) to improve its separation performance. The acids react with the amines on the PBI chains, decreasing free volume and increasing size-sieving ability. The acid doping increases H2/CO2 selectivity from 12 to as high as 45 at 35 °C. Here, the acid-doped samples demonstrate stable H2/CO2 separation performance when challenged with simulated syngas containing water vapor at 150 °C, which surpasses state-of-the-art polymers and Robeson’s upper bound for H2/CO2 separation.

Research Organization:
State Univ. of New York (SUNY), Buffalo, NY (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FE0031636
OSTI ID:
1864404
Alternate ID(s):
OSTI ID: 1874925
Journal Information:
ACS Applied Materials and Interfaces, Journal Name: ACS Applied Materials and Interfaces Journal Issue: 10 Vol. 13; ISSN 1944-8244
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (45)

Sorption‐Enhanced Mixed Matrix Membranes with Facilitated Hydrogen Transport for Hydrogen Purification and CO 2 Capture journal July 2019
Molecularly engineering polymeric membranes for H 2 / CO 2 separation at 100–300 °C journal July 2020
Effect of antiplasticization on gas sorption and transport. I. Polysulfone journal May 1987
Gas sorption and transport in semicrystalline poly(4-methyl-1-pentene) journal July 1989
Polymeric membrane materials for solution-diffusion based permeation separations journal January 1988
The effect of degree of acetylation on gas sorption and transport behavior in cellulose acetate journal December 1989
Mixed matrix membranes using carbon molecular sieves journal January 2003
Correlation and prediction of gas permeability in glassy polymer membrane materials via a modified free volume based group contribution method journal March 1997
Separation of IGCC syngas by using ZIF-8/dimethylacetamide slurry with high CO2 sorption capacity and sorption speed but low sorption heat journal June 2020
Highly Polar but Amorphous Polymers with Robust Membrane CO2/N2 Separation Performance journal August 2019
CO2/C2H6 separation using solubility selective membranes journal November 2007
Gas permeability properties of Matrimid® membranes containing the metal-organic framework Cu–BPY–HFS journal April 2008
The upper bound revisited journal July 2008
Highly gas permeable and microporous polybenzimidazole membrane by thermal rearrangement journal July 2010
Carbon dioxide capture with membranes at an IGCC power plant journal February 2012
H2/CO2 separation enhancement via chemical modification of polybenzimidazole nanostructure journal February 2019
Thermally stable cross-linked P84 with superior membrane H2/CO2 separation properties at 100 °C journal April 2019
High performance dual-layer hollow fiber membrane of sulfonated polyphenylsulfone/Polybenzimidazole for hydrogen purification journal December 2019
Influence of temperature on gas transport properties of tetraaminodiphenylsulfone (TADPS) based polybenzimidazoles journal January 2020
Thermally stable, homogeneous blends of cross-linked poly(ethylene oxide) and crown ethers with enhanced CO2 permeability journal September 2020
Thermal analysis and its application in evaluation of fluorinated polyimide membranes for gas separation journal August 2011
Hydrogen sorption in polymers for membrane applications journal May 2013
Polybenzimidazole based random copolymers containing hexafluoroisopropylidene functional groups for gas separations at elevated temperatures journal June 2017
Highly permeable mixed matrix materials comprising ZIF-8 nanoparticles in rubbery amorphous poly(ethylene oxide) for CO2 capture journal October 2018
Conductometric determination of pKa values. Oxalic and squaric acids journal July 1971
Highly Selective and Permeable Microporous Polymer Membranes for Hydrogen Purification and CO 2 Removal from Natural Gas journal July 2018
Polymorphism of Poly(2,6-dimethyl-1,4-phenylene)oxide in Axially Stretched Films journal March 2020
Unexpectedly Strong Size-Sieving Ability in Carbonized Polybenzimidazole for Membrane H2/CO2 Separation journal November 2019
Critical Assessment of CO 2 Solubility in Volatile Solvents at 298.15 K journal February 2011
Effect of structural symmetry on gas transport properties of polysulfones journal June 1992
On the role of intermolecular hydrogen bonding in miscible polymer blends journal September 1984
Hydrogen bonding in polymers: infrared temperature studies of an amorphous polyamide journal September 1985
Conditioning of Fluorine-Containing Polyimides. 2. Effect of Conditioning Protocol at 8 Volume Dilation on Gas-Transport Properties journal May 1999
Materials for next-generation molecularly selective synthetic membranes journal January 2017
Gas-sieving zeolitic membranes fabricated by condensation of precursor nanosheets journal October 2020
Carbon capture and storage (CCS): the way forward journal January 2018
Unprecedented size-sieving ability in polybenzimidazole doped with polyprotic acids for membrane H 2 /CO 2 separation journal January 2018
Tightening polybenzimidazole (PBI) nanostructure via chemical cross-linking for membrane H 2 /CO 2 separation journal January 2017
Ultra-selective defect-free interfacially polymerized molecular sieve thin-film composite membranes for H 2 purification journal January 2018
Novel high performance poly( p -phenylene benzobisimidazole) (PBDI) membranes fabricated by interfacial polymerization for H 2 separation journal January 2019
Growth and characterization of urea-oxalic acid crystals by solution growth technique journal November 2013
Facile manufacture of porous organic framework membranes for precombustion CO 2 capture journal September 2018
Plasticization-Enhanced Hydrogen Purification Using Polymeric Membranes journal February 2006
Maximizing the right stuff: The trade-off between membrane permeability and selectivity journal June 2017
Determination of all pK a Values of Some di- and Tri-Carboxylic Unsaturated and Epoxy Acids and Their Polylinear Correlation with the Carboxylic Group Atomic Charges journal May 2003