Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, Hebei 071002, China.
State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.
Mater Sci Eng C Mater Biol Appl. 2020 May;110:110747. doi: 10.1016/j.msec.2020.110747. Epub 2020 Feb 15.
The preparation of Pt/cerium oxide and highly ordered mesoporous carbon (Pt/CeO/OMC) nanohybrids is reported. CeO can be used as an active material that enhances the electrocatalytic properties of Pt nanoparticles. OMC exhibits excellent electrical conductivity and large specific surface area, which makes it a highly promising electrocatalyst support. Benefiting from the synergistic effects of the catalytic performance of Pt/CeO and excellent conductivity of OMC supports, the new nanocomposite of Pt/CeO/OMC are able to create novel features of electrocatalytic activities. Pt/CeO/OMC tri-component composite was used as an excellent sensing platform for the determination of adrenaline. The developed sensor exhibited excellent activity and convincing analytical performance towards adrenaline, such as wide linear range, high sensitivity, low limit of detection, and low limit of quantification. In addition, the recoveries ranging from 93.4 to 103.6% were obtained in human serum samples. The successful preparation of Pt/CeO/OMC tri-component composite may promote the development of novel electrocatalyst and facilitate the design of new electrochemical sensors.
本文报道了 Pt/氧化铈和有序介孔碳（Pt/CeO/OMC）纳米杂化物的制备。CeO 可以作为一种活性材料，增强 Pt 纳米颗粒的电催化性能。OMC 具有优异的导电性和大的比表面积，使其成为一种极具前途的电催化剂载体。受益于 Pt/CeO 的催化性能和 OMC 载体的优异导电性的协同效应，Pt/CeO/OMC 的新型纳米复合材料能够创造出新型的电催化活性特征。Pt/CeO/OMC 三组分复合材料被用作肾上腺素测定的优异传感平台。所开发的传感器对肾上腺素表现出优异的活性和令人信服的分析性能，例如宽线性范围、高灵敏度、低检测限和低定量限。此外，在人血清样品中获得了 93.4%至 103.6%的回收率。Pt/CeO/OMC 三组分复合材料的成功制备可能会促进新型电催化剂的发展，并有助于新型电化学传感器的设计。
