Rapidly synthesis of AuM (M = Pt, Pd) hexagonals/graphene quantum dots nanostructures and their application for non-enzyme hydrogen peroxide detection

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Journal of Materials Research Pub Date : 2024-09-12 DOI:10.1557/s43578-024-01435-0

Tran Thi Bich Quyen, Ngo Nguyen Tra My, Nguyen Thi Quyen Tran, Tran Minh Khang, Luong Huynh Vu Thanh, Bui Le Anh Tuan, Duy Toan Pham, Nguyen Le Thanh Huynh

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Abstract

In this study, AuM (M = Pt, Pd) bimetallic hexagonals (AuM BHGs) were successfully combined with graphene quantum dots (GQDs) by a simple method at ambient temperature (~ 30 °C) to form AuM BHGs/GQDs nanocomposites with enhanced properties and electro-activities. The synthesized AuM BHGs/GQDs were also characterized by UV–Vis, XRD, FTIR, XPS, AFM, TEM, and EDS. The novel AuM BHGs/GQDs were successfully synthesized, possessed an average particle size of AuM BHGs (~ 50–60 nm) and GQDs (~ 6–16 nm), and were homogeneously distributed in the dispersion. Furthermore, AuM BHGs/GQDs nanocomposites were also investigated as a sensitive sensor in the H₂O₂ detection by cyclic voltammetry method, with a low H₂O₂ limit of detection (LOD) of 0.865 nM, high sensitivity of 1.27 μAnM⁻¹cm⁻² and a wide detection range from 10^–12 to 10^–3 M. Therefore, AuM BHG/GQDs nanocomposites could be used to detect H₂O₂ with high sensitivity and fast response.

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快速合成 AuM（M = Pt、Pd）六边形/石墨烯量子点纳米结构及其在非酶过氧化氢检测中的应用

本研究采用一种简单的方法，在环境温度（~ 30 °C）下成功地将 AuM（M = Pt、Pd）双金属六边形（AuM BHGs）与石墨烯量子点（GQDs）结合在一起，形成了具有增强性能和电活性的 AuM BHGs/GQDs 纳米复合材料。合成的 AuM BHGs/GQDs 还通过 UV-Vis、XRD、FTIR、XPS、AFM、TEM 和 EDS 进行了表征。成功合成的新型 AuM BHGs/GQDs 具有 AuM BHGs（约 50-60 nm）和 GQDs（约 6-16 nm）的平均粒径，并在分散体中均匀分布。因此，AuM BHG/GQDs 纳米复合材料可用于高灵敏度和快速响应的 H2O2 检测。

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来源期刊

Journal of Materials Research 工程技术-材料科学：综合

CiteScore

4.50

自引率

3.70%

发文量

362

审稿时长

2.8 months

期刊介绍： Journal of Materials Research (JMR) publishes the latest advances about the creation of new materials and materials with novel functionalities, fundamental understanding of processes that control the response of materials, and development of materials with significant performance improvements relative to state of the art materials. JMR welcomes papers that highlight novel processing techniques, the application and development of new analytical tools, and interpretation of fundamental materials science to achieve enhanced materials properties and uses. Materials research papers in the following topical areas are welcome. • Novel materials discovery • Electronic, photonic and magnetic materials • Energy Conversion and storage materials • New thermal and structural materials • Soft materials • Biomaterials and related topics • Nanoscale science and technology • Advances in materials characterization methods and techniques • Computational materials science, modeling and theory