TY - JOUR
T1 - Effect of catalyst on electrolysis of ammonia effluents
AU - Bonnin, Egilda P.
AU - Biddinger, Elizabeth J.
AU - Botte, Gerardine G.
PY - 2008/7/15
Y1 - 2008/7/15
N2 - The electrolysis of ammonia (NH3) was studied as a remediation process for the removal of ammonia from wastewater, with the advantage of producing hydrogen while returning clean water to the environment. An electro-catalyst able to support the electro-oxidation of ammonia at low concentrations was designed. Two substrates were tested, Raney nickel and carbon fiber. Carbon fiber was found to be a better substrate for the electrolysis of ammonia at low concentrations. The performance of noble metals such as Rh, Pt and Ir, electroplated on the carbon fiber substrate was also evaluated. Rh-Pt-Ir and Pt-Ir on carbon fiber substrate were found to be the most promising electrodes for the electrolysis of ammonia at low concentrations. The maximum ammonia conversion was 91.49 ± 0.01% for a typical concentration of ammonia found in sewage water and the Faradaic efficiency was 91.81 ± 0.13% on the selected anode.
AB - The electrolysis of ammonia (NH3) was studied as a remediation process for the removal of ammonia from wastewater, with the advantage of producing hydrogen while returning clean water to the environment. An electro-catalyst able to support the electro-oxidation of ammonia at low concentrations was designed. Two substrates were tested, Raney nickel and carbon fiber. Carbon fiber was found to be a better substrate for the electrolysis of ammonia at low concentrations. The performance of noble metals such as Rh, Pt and Ir, electroplated on the carbon fiber substrate was also evaluated. Rh-Pt-Ir and Pt-Ir on carbon fiber substrate were found to be the most promising electrodes for the electrolysis of ammonia at low concentrations. The maximum ammonia conversion was 91.49 ± 0.01% for a typical concentration of ammonia found in sewage water and the Faradaic efficiency was 91.81 ± 0.13% on the selected anode.
KW - Ammonia effluents
KW - Ammonia electrolysis
KW - Carbon fiber electrodes
KW - Electro-deposition
KW - Hydrogen production
KW - Wastewater treatment
UR - http://www.scopus.com/inward/record.url?scp=44649154329&partnerID=8YFLogxK
U2 - 10.1016/j.jpowsour.2008.03.046
DO - 10.1016/j.jpowsour.2008.03.046
M3 - Article
AN - SCOPUS:44649154329
SN - 0378-7753
VL - 182
SP - 284
EP - 290
JO - Journal of Power Sources
JF - Journal of Power Sources
IS - 1
ER -