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Self Assembled Ordered Mesoporous Carbon: Synthesis, Characterization and Applications (pp.509-538) $100.00
Authors:  (Dipendu Saha, Shuguang Deng, Carbon Materials Group, Material Science and Technology Division, Oak Ridge National Laboratory, and New Mexico State University, Las Cruces, New Mexico, USA)
Abstract:
Controlled and ordered mesoporosity in carbon-based materials has gained a lots
interests and applications in the present technology. Conventionally, ordered mesoporous
carbon was nanocasted by doping a suitable inorganic scaffold or template (mostly silica)
with an organic carbon precursor followed by carbonization at high temperature. Due to
the presence of several associated drawbacks of the nanocasting method, different
researchers attempted to insert mesoporosity in carbon based materials without
employing any inorganic scaffold. In this so called “soft template” or self-assembly
process, an organic block copolymer has been employed as a structure dictating agent and
a phenol-formaldehyde type of resin as carbon source held together by hydrogen bonding
or occasionally by with an external cross-linking agent. During carbonization, the resin
converted to pure carbon where as the copolymer decomposes from the system leaving its
contribution as the monitor of the structure of porosity in the resultant carbon. Pluronic
P123, Pluronic F127 or polystyrene-block-ploy(4-vinylpyridine) are most common
structure dictating copolymers where as phenol, resorcinol or phloroglucinolformaldehyde
resins are most widely used as a suitable source of carbon precursors.
Literature value revels that these ordered mesoporous carbon possesses the BET specific
surface area in the range of 280-1300 m2/g based on the reagents and synthesis
procedures. Depending on the processing and aging conditions, the morphology of OMC
can be tuned within monolith, fiber or sheets in order to meet the specific demands of the
applications. 


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Self Assembled Ordered Mesoporous Carbon: Synthesis, Characterization and Applications (pp.509-538)