Defect formation and prevention during the preparation of supported carbon membranes
Source abstract
Abstract
Supported carbon membranes were prepared using phenolic resin as the carbon precursor and porous graphite as the support. The support was impregnated with the resin solution, dried, cured and carbonized to obtain a membrane layer. One-time coating cannot effectively reduce the number of defects in the membrane. Repeated impregnation cycles to add more carbon layers, using a slow cooling rate during carbonization, performing carbonization at a low temperature and short time (500 °C and 10 min), and coating the supported membranes with permeable polymers were used simultaneously to reduce the population of defects to a certain extent. As a result, gas separation selectivity of the membranes was significantly increased.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Membrane Separation and Gas Transport · Graphene research and applications · Supercapacitor Materials and Fabrication
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (23)
Show source-provided references
1. A review on the latest development of carbon membranes for gas separation[J]10.1016/S0376-7388(01)00510-5 ↗
2. The preparation of a carbon membrane and its highly effective separation of oxygen over nitrogen[J]
3. Fabrication of carbon membranes for gas separation –a review[J]10.1016/j.carbon.2003.10.022 ↗
4. Polyimide-carbonized membranes for gas separation: structural, composition, and morphological control of precursors[J]10.1080/15422110601003481 ↗
5. The evolution of physicochemical and transport properties of 6FDA-durene toward carbon membranes; from polymer, intermediate to carbon[J]10.1016/j.micromeso.2005.04.026 ↗
6. Gas separation by carbon membranes
7. Adsorption-selective carbon membrane for gas separation[J]10.1016/S0376-7388(00)00458-0 ↗
8. Acharya · 1999
9. Shiflett · 2002
10. Gas separation and pervaporation through microporous carbon membrane derived from phenolic resin
11. Nanoporous carbon membranes for separation of gas mixtures by selective surface flow[J]10.1016/0376-7388(93)85279-6 ↗
12. Preparation of carbon molecular sieve membrane and diffusion of binary mixtures in the membrane[J]10.1021/ie00036a033 ↗
13. Carbon molecular sieve membranes derived from a phenolic resin supported on porous ceramic tubes[J]10.1016/S1383-5866(01)00065-X ↗
14. Preparation of carbon molecular sieve membrane from phenol–formaldehyde Novolac resin[J]10.1016/S0008-6223(01)00306-2 ↗
15. Duke M C, Campbell R, Deniz da Costa J C. Multi-layered silica-carbon molecular sieve membrane for CO2 separation[C]. International Conference on Nanoscience and Nanotechnology, Brisbane, Australia, 2006.10.1109/ICONN.2006.340671 ↗
16. Exploratory development of dual-layer carbon–zeolite nanocomposite hollow fiber membranes with high performance for oxygen enrichment and natural gas separation[J]10.1016/j.micromeso.2007.11.038 ↗
17. Supported carbon molecular sieve membranes based on a phenolic resin[J]10.1016/S0376-7388(99)00083-6 ↗
18. Capillary carbon molecular sieve membrane derived from kapton for high temperature gas separation[J]10.1016/S0376-7388(97)00041-0 ↗
19. Carbon composite membrane: a solution to adverse humidity effects[J]10.1021/ie00040a015 ↗
20. Blocking defects in SAPO-34 membranes with cyclodextrin[J]10.1016/j.memsci.2010.04.006 ↗
21. Simple efficient synthesis of strongly luminescent polypyrene with intrinsic conductivity and high carbon yield by chemical oxidative polymerization of pyrene[J]10.1002/chem.200902621 ↗
22. Productive synthesis and properties of polydiaminoanthraquinone and its pure self-stabilized nanoparticles with widely adjustable electroconductivity[J]10.1002/chem.200700541 ↗
23. Facile synthesis of polysulfoaminoanthraquinone nanosorbents for rapid removal and ultrasensitive fluorescent detection of heavy metal ions[J]10.1021/jp1099706 ↗