Glucose-derived carbon molecular sieve membrane: An inspiration from cooking

Polymeric precursor affects the structure of carbon membrane, and ultimately, its separating capability after pyrolysis. There, however, remains a large pool of unexplored polymer for low-cost, high-performing carbon membrane. Herein, we explore glucose, a simple sugar, as the precursor for carbon m...

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Bibliographic Details
Published in:Carbon (New York) 2017-01, Vol.111, p.334-337
Main Authors: Chen, Xinwei, Eugene Chong, Jia Jun, Celine Fah, Zi Wei, Hong, Liang
Format: Article
Language:English
Subjects:
Bars
Carbon
Ceramics
Combustion
Cooking
Glucose
Heating
Molecular sieves
Molecular structure
Permeability
Polymeric precursor
Porous
Pyrolysis
Separation
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Summary:Polymeric precursor affects the structure of carbon membrane, and ultimately, its separating capability after pyrolysis. There, however, remains a large pool of unexplored polymer for low-cost, high-performing carbon membrane. Herein, we explore glucose, a simple sugar, as the precursor for carbon membrane. The idea originates from observing burnt char during cooking. The glucose layer on a supported ceramic is converted to carbon matrix at 180 °C and 50 bars in nitrogen. The carbon matrix exhibits size-sieving mechanism, with ideal H2/N2 and H2/CH4 selectivities of 11.6 and 9.9 respectively, and H2 permeability of 8705 Barrer, exceeding the Robeson line. [Display omitted]
ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2016.10.006