Significantly improving the dispersion of platinum nanoparticles (NPs) over the support is critical to boosting their performance in electrocatalysis. Herein, an effective method is reported to synthesise well-dispersed Pt NPs (∼3 nm) on defective graphene nanosheets (Pt/dGNs) through a self-regulation reduction method of sodium n-dodecyl sulphate (SDS). The dGNs (dGN₆₀₀, dGN₄₀₀, and dGN₂₀₀) were rapidly exfoliated and prepared using a sonoelectrochemical method with sonication powers of 600, 400, and 200 W. Consequently, highly dispersed and dense Pt NPs formed on dGN₆₀₀ (Pt/dGN₆₀₀) with point vacancy, 5–8-5 defect, and 5–9 vacancy defect were obtained. The Pt/dGN₆₀₀ exhibited a significant mass activity (5.80 × 10²⁰ molecules· g^-1_Pt) for the sequential catalysis of neutral D-glucose oxidation reaction (GOR), where the electron transfer number was 1.13, suggesting that the element step to form gluconolactone. Additionally, amperometric sensor studies for transient catalysis clearly showed the potential of Pt/dGN₆₀₀ for use as a non-enzymatic glucose sensor.

显着改善铂纳米颗粒 (NPs) 在载体上的分散对于提高其在电催化中的性能至关重要。在此，报道了一种有效的方法，通过正十二烷基硫酸钠（SDS）的自我调节还原方法在有缺陷的石墨烯纳米片（Pt/dGNs）上合成分散良好的 Pt NPs（~3 nm）。dGN（dGN ₆₀₀、dGN ₄₀₀和 dGN ₂₀₀）使用声电化学方法快速剥离并制备，超声功率为 600、400 和 200 W。因此，在 dGN ₆₀₀（Pt/dGN）上形成高度分散和致密的 Pt NP ₆₀₀ ) 与点空位，5-8-5 个缺陷，和 5-9 个空位缺陷。Pt/dGN ₆₀₀对中性D-葡萄糖氧化反应（GOR）的顺序催化表现出显着的质量活性（5.80 × 10 ²⁰分子·g ^-1 _Pt），其中电子转移数为1.13，表明元素步骤形成葡萄糖酸内酯。此外，瞬态催化的电流传感器研究清楚地显示了 Pt/dGN ₆₀₀用作非酶葡萄糖传感器的潜力。