Lorencova Lenka, Bertok Tomas, Dosekova Erika, Holazova Alena, Paprckova Darina, Vikartovska Alica, Sasinkova Vlasta, Filip Jaroslav, Kasak Peter, Jerigova Monika, Velic Dusan, Mahmoud Khaled A, Tkac Jan
Institute of Chemistry, Slovak Academy of Sciences, Dubravska cesta 9, Bratislava 845 38, Slovak Republic.
Center for Advanced Materials, Qatar University, P.O. Box 2713, Doha, Qatar.
Electrochim Acta. 2017 May 1;235:471-479. doi: 10.1016/j.electacta.2017.03.073.
An extensive characterization of pristine and oxidized TiCT (T: =O, -OH, -F) MXene showed that exposure of MXene to an anodic potential in the aqueous solution oxidizes the nanomaterial forming TiO layer or TiO domains with subsequent TiO dissolution by F ions, making the resulting nanomaterial less electrochemically active compared to the pristine TiCT. The TiCT could be thus applied for electrochemical reactions in a cathodic potential window i.e. for ultrasensitive detection of HO down to nM level with a response time of approx. 10 s. The manuscript also shows electrochemical behavior of TiCT modified electrode towards oxidation of NADH and towards oxygen reduction reactions.
对原始的和氧化的TiCT（T = O、-OH、-F）MXene进行的广泛表征表明，MXene在水溶液中暴露于阳极电位会使纳米材料氧化，形成TiO层或TiO域，随后F离子会使TiO溶解，与原始的TiCT相比，所得纳米材料的电化学活性较低。因此，TiCT可用于阴极电位窗口中的电化学反应，即用于超灵敏检测低至nM水平的HO，响应时间约为10 s。该手稿还展示了TiCT修饰电极对NADH氧化和氧还原反应的电化学行为。
