Superior anodic oxidation in tailored Sb-doped SnO2/RuO2 composite nanofibers for electrochemical water treatment
| Autor: | Jae Chan Kim, Woohyeon Kang, Dong Wan Kim, Ha Young Yoo, Seung Ik Oh, Jaesang Lee |
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| Rok vydání: | 2019 |
| Předmět: |
010405 organic chemistry
Chemistry Composite number Oxygen evolution Nanoparticle engineering.material 010402 general chemistry Electrochemistry 01 natural sciences Catalysis Electrospinning 0104 chemical sciences Anode Chemical engineering Nanofiber engineering Noble metal Physical and Theoretical Chemistry |
| Zdroj: | Journal of Catalysis. 374:118-126 |
| ISSN: | 0021-9517 |
| DOI: | 10.1016/j.jcat.2019.04.025 |
| Popis: | Dimensionally stable RuO2 (RO)- and IrO2-based anodes have been widely used for electrochemical water treatment but alternative materials are required due to their well-recognized drawbacks such as high-cost and low oxygen evolution potential. In an effort to minimize noble metal contents, we herein fabricated electrospun Sb-doped SnO2 (ATO)/RO composite nanofibers as new anode materials by controlling precursor ratios. These composite nanofiber anodes have one-dimensional nanostructure assembled with highly uniform ATO and RO nanoparticles and their oxygen evolution potential was successfully tailored by compositional change. The ATO/RO nanofiber anodes, even with a small amount of RO of 3% exhibited superior electrocatalytic performance in oxidative organic degradation; complete degradation of bisphenol A as a model substrate was achieved during 20 min-electrolysis on ATO/RO anodes at a low current density of 3 mA⋅cm−2. This strategy provides the optimization of oxygen evolution reaction and current efficiency, resulting in excellent capability for electrochemical water treatment. |
| Databáze: | OpenAIRE |
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