Gold nanoparticles (AuNPs) have emerged as highly competitive catalysts. However, the precise regulation of intrinsic structural parameters that account for the activity of AuNPs remains a challenge in designing high-performance electrocatalysts. Herein, the layered yttrium hydroxide (LYH) nanosheets supported AuNPs are prepared via a facile electrochemical deposition method. The tunability of morphology in LYH support and their utilization in controlling the growth of small AuNPs with uniform dispersion are emphasized. Finally, a novel sensor is constructed using flower-like AuNPs/LYH modified electrodes, which allows for simultaneous determination of the dihydroxybenzene isomers hydroquinone and catechol with good sensitivity, reproducibility and stability. The excellent performance can be attributed to the synergistic effects between AuNPs and LYHs. The strategy of depositing gold onto LYH nanosheets and the resulting high performance provide new approaches for further developing highly efficient composite electrodes across a wide range of applications.

中文翻译：

---

通过电化学方法轻松制备锚定在层状氢氧化钇上的金纳米颗粒，以增强对苯二酚和儿茶酚的传感


金纳米颗粒（AuNP）已成为极具竞争力的催化剂。然而，精确调节影响 AuNP 活性的内在结构参数仍然是设计高性能电催化剂的挑战。在此，通过简便的电化学沉积方法制备了负载 AuNP 的层状氢氧化钇（LYH）纳米片。强调了 LYH 载体形态的可调性及其在控制均匀分散的小 AuNP 生长中的应用。最后，利用花状 AuNPs/LYH 修饰电极构建了一种新型传感器，可以同时测定二羟基苯异构体对苯二酚和儿茶酚，具有良好的灵敏度、重现性和稳定性。优异的性能可归因于 AuNPs 和 LYH 之间的协同效应。将金沉积到 LYH 纳米片上的策略以及由此产生的高性能为进一步开发跨广泛应用的高效复合电极提供了新方法。