New catalyst systems for the vapor phase synthesis of carbon filaments

Abstract

In this project, new catalyst systems for the vapor phase synthesis of carbon filaments were tested in order to improve the yield of filament, and also the quality of the filaments. Two types of processes were used: a batch process and a continuous process. Three types of hydrocarbon feedstocks were used: ethylene, hexane, and JP-8. In the batch reactor three catalyst systems were tested: a H2S treated Fe203 catalyst, a Fe20JIS04 catalyst treated with elemental sulfur, and a NiS catalyst. A study of optimal conditions for synthesizing carbon filaments in a continuous vertical reactor was performed using a Fe(C0)5 catalyst. During the course of the work, an important discovery was made; that being that the iron pentacarbonyl catalyst was found to be a very active catalyst for promoting filament growth. Morphological and structural characterizations of the filaments were made using scanning electron microscopic methods. Conductivity and surface area of the carbon filaments were measured by using a four point probe technique and a BET analyzer.

Notes

This item is only available in print in the UCF Libraries. If this is your thesis or dissertation, you can help us make it available online for use by researchers around the world by STARS for more information.

Graduation Date

1995

Semester

Fall

Advisor

Clausen, Christian

Degree

Master of Science (M.S.)

College

College of Arts and Sciences

Department

Chemistry

Degree Program

Industrial Chemistry

Format

PDF

Pages

59 p.

Language

English

Length of Campus-only Access

None

Access Status

Masters Thesis (Open Access)

Identifier

DP0028687

Subjects

Arts and Sciences -- Dissertations, Academic; Dissertations, Academic -- Arts and Sciences

This document is currently not available here.

Share

COinS