"Synthesis, Characterization and Catalytic Studies of Carbon-Based Nano" by Qiangu Yan
 

Theses and Dissertations

Author

Qiangu Yan

Issuing Body

Mississippi State University

Advisor

Toghiani, Hossein

Committee Member

Bricka, R. Mark

Committee Member

Toghiani, Rebecca K.

Date of Degree

4-30-2011

Document Type

Graduate Thesis - Open Access

Major

Chemical Engineering

Degree Name

Master of Science

College

James Worth Bagley College of Engineering

Department

Dave C. Swalm School of Chemical Engineering

Abstract

Nano-scaled carbons were produced by thermal treatment of pine wood chips and bio-char. The influence of temperature, heating rate, pyrolysis time, and type and flow rate of purge gas on the production of nano-carbons was investigated. Using TEM and SEM, different carbon-based nanomaterials were observed in the prepared samples. The effect of metal ion doping on the bio-char was also investigated. Highly functionalized nano carbonaceous materials were synthesized by low temperature hydrothermal carbonization (HTC) using glucose, sucrose, xylose, and cellulose. Carbon-encapsulated iron (Fe@C) core-shell particles were also synthesized by the HTC method and used as catalyst for Fischer-Tropsch synthesis to produce liquid hydrocarbons from syngas; it showed excellent activity. Nano-structured Co-Mo carbides over several nano-sized carbon materials were prepared using the carbothermal reduction and carbothermal hydrogen reduction methods. Nano-structured Co-Mo carbides derived from Vulcan® XC-72 were used as the catalyst to produce higher alcohols.

URI

https://hdl.handle.net/11668/17941

Comments

Nano carbons||Fischer-Tropsch synthesis (FTS)||catalyst||carbothermal hydrogen reduction (CHR)||carbothermal reduction (CR)||Co-Mo carbide||hydrothermal carbonization||treatment conditions||thermal treatment||biochar||pine wood||syngas||liquid fuels

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