Margraves, Charles; Rondinone, Adam
College of Engineering and Computer Science
University of Tennessee at Chattanooga
Place of Publication
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.
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.
Nitrogen oxides -- Environmental aspects
v, 41 leaves
Patel, Shikha, "Electrochemical NOx reduction using a carbon nanospiked catalyst" (2016). Masters Theses and Doctoral Dissertations.