Committee Chair

Palchoudhury, Soubantika

Committee Member

Margraves, Charles; Rondinone, Adam

Department

Dept. of Engineering

College

College of Engineering and Computer Science

Publisher

University of Tennessee at Chattanooga

Place of Publication

Chattanooga (Tenn.)

Abstract

Electrochemical NOx reduction was studied using a novel, nanostructured nitrogen-doped carbon nanospikes catalyst (CNS). NOx is a major environment and health concern that is typically eliminated using noble-metal gas-phase catalytic reactors. Alternatively, an electrocatalytic approach may reduce NOx to N2 using electric potential and reaction, foregoing noble metal catalysis. For these studies nitrate 〖(NO〗_3^-) and nitrite (〖NO〗_2^-) (the end products of dissolved NOx in water) were used as surrogate reagents. Basic solutions were more favorable than acidic solutions for nitrate reduction. The nitrate reduction reaction with three different electrolytes, Lithium hydroxide, Sodium hydroxide, and Potassium hydroxide has been compared. Identification and quantification tests for nitrate, nitrite, and ammonia indicated that nitrite is an intermediate product during nitrate reduction. The final product with sodium hydroxide is ammonia. Potassium hydroxide and lithium hydroxide suggested no formation of ammonia. However, it suggested a possibility of formation of nitrogen and oxygen.

Degree

M. S.; A thesis submitted to the faculty of the University of Tennessee at Chattanooga in partial fulfillment of the requirements of the degree of Master of Science.

Date

12-2016

Subject

Nitrogen oxides -- Environmental aspects

Keyword

Nitrate reduction; Carbon nanospike catalyst; Electrochemical reduction; Electrochemistry; Catalytic converter

Document Type

Masters theses

Extent

v, 41 leaves

Language

English

Rights

Under copyright.

License

http://creativecommons.org/licenses/by-nc-nd/3.0/

Shikha_Patel_Thesis.docx (5482 kB)
unable to open the revise thesis link, that is why added the most updated version here

Share

COinS