High catalytic performance of CuCo/nickel foam electrode for ammonia electrooxidation
As part of ongoing efforts to effectively remove ammonia from industrial wastewater, electrochemical oxidation has become an alternative to conventional biological treatment due to its easier operation and better tolerance of toxic pollutants. This study aims to prepare CuCo/nickel foam (CuCo/NF) el...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-12-01
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| Series: | Electrochemistry Communications |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1388248120302265 |
| _version_ | 1819142978010087424 |
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| author | Ming-Han Tsai Tzu-Chiang Chen Yaju Juang Lap-Cuong Hua Chihpin Huang |
| author_facet | Ming-Han Tsai Tzu-Chiang Chen Yaju Juang Lap-Cuong Hua Chihpin Huang |
| author_sort | Ming-Han Tsai |
| collection | DOAJ |
| description | As part of ongoing efforts to effectively remove ammonia from industrial wastewater, electrochemical oxidation has become an alternative to conventional biological treatment due to its easier operation and better tolerance of toxic pollutants. This study aims to prepare CuCo/nickel foam (CuCo/NF) electrodes by depositing different ratios of Cu and Co as catalysts and investigate their performance for ammonia electrooxidation (EO). Under optimum conditions (pH 11 and applied voltage of 1.1 V vs Ag/AgCl), excellent ammonia removal was obtained using the Cu0.5Co0.5/NF electrode system, with 93% removal after 5 h for a low level of ammonia loading (50 mg-N/L), which was superior to the performance of the bare NF electrode (only 54%). The Cu0.5Co0.5/NF electrode also had a higher current efficiency of 34% and lower energy consumption of 0.11 kWh g−1 compared to the bare NF and single metal Cu (Cu1Co0/NF) or Co (Cu0Co1/NF) electrodes. The high catalytic performance of the Cu0.5Co0.5/NF electrode towards ammonia indicates that a CuCo bimetallic catalyst on a NF substrate is a promising solution for effective removal of ammonia from industrial wastewater. |
| first_indexed | 2024-12-22T12:18:55Z |
| format | Article |
| id | doaj.art-2ac23a45c14c448aa7bf33f3e64dcbfd |
| institution | Directory Open Access Journal |
| issn | 1388-2481 |
| language | English |
| last_indexed | 2024-12-22T12:18:55Z |
| publishDate | 2020-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Electrochemistry Communications |
| spelling | doaj.art-2ac23a45c14c448aa7bf33f3e64dcbfd2022-12-21T18:26:02ZengElsevierElectrochemistry Communications1388-24812020-12-01121106875High catalytic performance of CuCo/nickel foam electrode for ammonia electrooxidationMing-Han Tsai0Tzu-Chiang Chen1Yaju Juang2Lap-Cuong Hua3Chihpin Huang4Institute of Environmental Engineering, National Chiao Tung University, Hsinchu 300, TaiwanInstitute of Environmental Engineering, National Chiao Tung University, Hsinchu 300, TaiwanDivision of Water Research Technology, Material and Chemical Research Laboratories, Industrial Technology Research Institute (ITRI), Hsinchu 300, TaiwanInstitute of Environmental Engineering, National Chiao Tung University, Hsinchu 300, TaiwanInstitute of Environmental Engineering, National Chiao Tung University, Hsinchu 300, Taiwan; Correspondence author.As part of ongoing efforts to effectively remove ammonia from industrial wastewater, electrochemical oxidation has become an alternative to conventional biological treatment due to its easier operation and better tolerance of toxic pollutants. This study aims to prepare CuCo/nickel foam (CuCo/NF) electrodes by depositing different ratios of Cu and Co as catalysts and investigate their performance for ammonia electrooxidation (EO). Under optimum conditions (pH 11 and applied voltage of 1.1 V vs Ag/AgCl), excellent ammonia removal was obtained using the Cu0.5Co0.5/NF electrode system, with 93% removal after 5 h for a low level of ammonia loading (50 mg-N/L), which was superior to the performance of the bare NF electrode (only 54%). The Cu0.5Co0.5/NF electrode also had a higher current efficiency of 34% and lower energy consumption of 0.11 kWh g−1 compared to the bare NF and single metal Cu (Cu1Co0/NF) or Co (Cu0Co1/NF) electrodes. The high catalytic performance of the Cu0.5Co0.5/NF electrode towards ammonia indicates that a CuCo bimetallic catalyst on a NF substrate is a promising solution for effective removal of ammonia from industrial wastewater.http://www.sciencedirect.com/science/article/pii/S1388248120302265AmmoniaCuCo catalystSelective nitrificationElectrooxidation (EO) |
| spellingShingle | Ming-Han Tsai Tzu-Chiang Chen Yaju Juang Lap-Cuong Hua Chihpin Huang High catalytic performance of CuCo/nickel foam electrode for ammonia electrooxidation Electrochemistry Communications Ammonia CuCo catalyst Selective nitrification Electrooxidation (EO) |
| title | High catalytic performance of CuCo/nickel foam electrode for ammonia electrooxidation |
| title_full | High catalytic performance of CuCo/nickel foam electrode for ammonia electrooxidation |
| title_fullStr | High catalytic performance of CuCo/nickel foam electrode for ammonia electrooxidation |
| title_full_unstemmed | High catalytic performance of CuCo/nickel foam electrode for ammonia electrooxidation |
| title_short | High catalytic performance of CuCo/nickel foam electrode for ammonia electrooxidation |
| title_sort | high catalytic performance of cuco nickel foam electrode for ammonia electrooxidation |
| topic | Ammonia CuCo catalyst Selective nitrification Electrooxidation (EO) |
| url | http://www.sciencedirect.com/science/article/pii/S1388248120302265 |
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