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Synthesis of Carbide Nanostructures on Monolithic Agricultural‐Waste Biomass‐Activated Carbon Templates
Author(s) -
Bradbury William L.,
Olevsky Eugene A.
Publication year - 2010
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2010.02533.x
Subject(s) - materials science , potassium hydroxide , pyrolysis , silicon carbide , nanowire , carbonization , template , nanotechnology , chemical engineering , carbon fibers , nanostructure , adsorption , biomass (ecology) , specific surface area , carbide , silicon , organic chemistry , catalysis , composite material , scanning electron microscope , metallurgy , chemistry , oceanography , geology , composite number , engineering
Silicon carbide nanowires (SiCNWs) have been successfully produced by a conventional synthesis method with silicon powder on agricultural‐waste‐activated carbon templates. Specific surface area (SSA) values of ∼900 m 2 /g were achieved through the conventional activation of Crambe stalk with potassium hydroxide (KOH). Various morphologies and large‐scale growth of SiCNWs are observed after loading with Si and pyrolysis at 1500°C. Solid–solid and vapor–liquid–solid processes are considered potential mechanisms for nanowire development and KOH may also contribute to reaction kinetics. The demonstrated process may provide structurally stable high SSA monolithic templates for the production of tailored solid‐state adsorbent bed precursors.