Ni-Co-B nanoparticle decorated carbon felt by electroless plating as a bi-functional catalyst for urea electrolysis
| Autor: | Gautam Das, Hyon Hee Yoon, Dal Ho Lee, Jihyeon Kim, Bohyeon Kim |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Electrolytic cell 02 engineering and technology 010402 general chemistry 01 natural sciences Redox Electrolysis law.invention Catalysis Biomaterials Metal chemistry.chemical_compound Colloid and Surface Chemistry Carbon Fiber law Urea Bifunctional 021001 nanoscience & nanotechnology Carbon 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Anode chemistry visual_art visual_art.visual_art_medium Nanoparticles 0210 nano-technology Nuclear chemistry |
| Zdroj: | Journal of Colloid and Interface Science. 601:317-325 |
| ISSN: | 0021-9797 |
| DOI: | 10.1016/j.jcis.2021.05.078 |
| Popis: | A free-standing catalyst electrode for urea electrolysis was synthesized by electroless plating of NiCoB alloy onto a flexible carbon felt. The synthesized NiCoB@C catalyst exhibited porous and partially amorphous metallic structure depending on its composition, as analysed by XRD, XPS, and TEM; thus, NiCoB@C catalyst showed a high catalytic activity for urea oxidation reaction as well as hydrogen evolution reaction. The required cell voltage in the electrolysis cell with NiCoB@C as anode and cathode was as low as 1.34 V for the current densities 10 mA cm−2. Similar performance of the urea electrolysis for H2 production using 0.33 M urea and a fresh urine in 1 M KOH was observed. The result indicated that NiCoB could be incorporated on to carbon felt by electroless plating, and it could be used as free-standing bifunctional electrodes for urea electrolysis using urea as well as urine. |
| Databáze: | OpenAIRE |
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