دورية أكاديمية
Titanium Dioxide Nanotubes as Model Systems for Electrosorption Studies
| العنوان: | Titanium Dioxide Nanotubes as Model Systems for Electrosorption Studies |
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| المؤلفون: | Li, Xian, Pustulka, Samantha, Pedu, Scott, Close, Thomas, Xue, Yuan, Richter, Christiaan, Taboada-Serrano, Patricia |
| المساهمون: | Iðnaðarverkfræði-, vélaverkfræði- og tölvunarfræðideild (HÍ), Faculty of Industrial Eng., Mechanical Eng. and Computer Science (UI), Verkfræði- og náttúruvísindasvið (HÍ), School of Engineering and Natural Sciences (UI), Háskóli Íslands, University of Iceland |
| بيانات النشر: | MDPI AG |
| سنة النشر: | 2018 |
| المجموعة: | Opin vísindi (Iceland) |
| مصطلحات موضوعية: | Electrosorption, Titania nanotubes, Nanostructured electrodes, Rafeindaverkfræði |
| الوصف: | Publisher's version (útgefin grein) ; Highly ordered titanium dioxide nanotubes (TiO2 NTs) were fabricated through anodization and tested for their applicability as model electrodes in electrosorption studies. The crystalline structure of the TiO2 NTs was changed without modifying the nanostructure of the surface. Electrosorption capacity, charging rate, and electrochemical active surface area of TiO2 NTs with two different crystalline structures, anatase and amorphous, were investigated via chronoamperometry, cyclic voltammetry, and electrochemical impedance spectroscopy. The highest electrosorption capacities and charging rates were obtained for the anatase TiO2 NTs, largely because anatase TiO2 has a reported higher electrical conductivity and a crystalline structure that can potentially accommodate small ions within. Both electrosorption capacity and charging rate for the ions studied in this work follow the order of Cs+ > Na+ > Li+, regardless of the crystalline structure of the TiO2 NTs. This order reflects the increasing size of the hydrated ion radii of these monovalent ions. Additionally, larger effective electrochemical active surface areas are required for larger ions and lower conductivities. These findings point towards the fact that smaller hydrated-ions experience less steric hindrance and a larger comparative electrostatic force, enabling them to be more effectively electrosorbed. ; Peer Reviewed |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2079-4991 |
| العلاقة: | Nanomaterials;8(6); http://www.mdpi.com/2079-4991/8/6/404/pdfTest; Li X, Pustulka S, Pedu S, Close T, Xue Y, Richter C, Taboada-Serrano P. Titanium Dioxide Nanotubes as Model Systems for Electrosorption Studies. Nanomaterials. 2018; 8(6):404. doi:10.3390/nano8060404; https://hdl.handle.net/20.500.11815/944Test; Nanomaterials |
| DOI: | 10.3390/nano8060404 |
| الإتاحة: | https://doi.org/20.500.11815/944Test https://doi.org/10.3390/nano8060404Test https://hdl.handle.net/20.500.11815/944Test |
| حقوق: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.7954CEDF |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 20794991 |
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| DOI: | 10.3390/nano8060404 |