TY - JOUR
T1 - Electrochemical decomposition of urea with Ni-based catalysts
AU - Yan, Wei
AU - Wang, Dan
AU - Botte, Gerardine G.
N1 - Funding Information:
The authors would like to thank the financial support of the Center for Electrochemical Engineering Research at Ohio University , and the Department of Defense through the U.S. Army Construction Engineering Research Laboratory ( W9132T-09-1-0001 ). The content of the information does not reflect the position or the policy of the U.S. government.
PY - 2012/10/30
Y1 - 2012/10/30
N2 - Nickel based catalysts (Ni, Ni-Zn, and Ni-Zn-Co) synthesized through electrodeposition and alkaline leaching processes were used as electrocatalysts for the electrochemical decomposition of urea to benign nitrogen and fuel cell grade hydrogen. The performances of the Ni-based catalysts for the urea decomposition were investigated through cyclic voltammetry (CV) and polarization techniques. The results of the CVs show that the Ni-Zn catalysts and the Ni-Zn-Co catalysts decreased the onset potential of urea oxidation by 40. mV and 80. mV, respectively when compared to Ni catalysts. The highest efficiency for the oxidation of urea was observed with the Ni-Zn-Co catalysts. The Ni-Zn and Ni-Zn-Co catalysts are promising materials for large-scale urea removal/decomposition from urea-rich wastewater, as well as for hydrogen production.
AB - Nickel based catalysts (Ni, Ni-Zn, and Ni-Zn-Co) synthesized through electrodeposition and alkaline leaching processes were used as electrocatalysts for the electrochemical decomposition of urea to benign nitrogen and fuel cell grade hydrogen. The performances of the Ni-based catalysts for the urea decomposition were investigated through cyclic voltammetry (CV) and polarization techniques. The results of the CVs show that the Ni-Zn catalysts and the Ni-Zn-Co catalysts decreased the onset potential of urea oxidation by 40. mV and 80. mV, respectively when compared to Ni catalysts. The highest efficiency for the oxidation of urea was observed with the Ni-Zn-Co catalysts. The Ni-Zn and Ni-Zn-Co catalysts are promising materials for large-scale urea removal/decomposition from urea-rich wastewater, as well as for hydrogen production.
KW - Environmental pollutants
KW - Hydrogen production
KW - Ni-Zn and Ni-Zn-Co catalysts
KW - Urea removal/decomposition
KW - Urea-rich wastewater
UR - http://www.scopus.com/inward/record.url?scp=84866290236&partnerID=8YFLogxK
U2 - 10.1016/j.apcatb.2012.08.022
DO - 10.1016/j.apcatb.2012.08.022
M3 - Article
AN - SCOPUS:84866290236
SN - 0926-3373
VL - 127
SP - 221
EP - 226
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
ER -