本論文主要關注石墨烯量子點結合垂直生長的SnS2奈米片複合材料作為超級電容器的電極 (第3章)。應用的概述將在介紹(第1章)中顯示。此外，實驗程序 (第2章) 包括化學試劑、材料表結構鑑定和電化學分析原理。在第 3 章中，我們首先介紹了 GQD-SnS2⊥CC。設計並合成了石墨烯量子點 (GQDs) 與垂直生長的SnS2奈米片形成混合結構GQD-SnS2⊥CC奈米複合材料作為SCs的電極。得益於在 SnS2 奈米片上修飾GQDs形成粗糙表面並增加反應表面積和活性位點。GQD-SnS2⊥CC 表現出優異的電化學性能，在1 A·g-1下具有出色的比電容值 (144.3 F·g-1) 和良好的倍率容量 (在10 A·g-1下保留54%)，表明在能源應用方面的巨大潛力。2,000次循環後的長期穩定性為98.5%，表明 GQD-SnS2複合材料是穩定的。這項工作中開發的方法可以擴展到其他金屬硫化物或金屬氧化物電極材料的構建，以用於各種儲能應用。

his thesis mainly focuses on graphene quantum dots combining with vertical growth SnS2 nanosheets hybrid nanocomposites as electrodes for supercapacitance (Chapter 3). The overview of the application will be showed in introduction (Chapter 1). Moreover, the experiment procedures (Chapter 2) include the chemical reagent, material characterization and the principle of electrochemical analysis. In Chapter 3, We firstly introduce the GQD-SnS2⊥CC. The hybrid structure of graphene quantum dots (GQDs) combining with vertical growth SnS2 nanosheets to form GQD-SnS2⊥CC nanocomposites were designed and synthesized as the electrode for SCs. Benefiting from the GQDs modified on SnS2 nanosheets to form a rough surface and increase the reactive surface area and active sites, the GQD-SnS2⊥CC exhibits excellent electrochemical performance with the outstanding specific capacitance (144.3 F·g-1 at the current density of 1 A·g-1) and good rate capacity (54% retention at the current density of 10 A·g-1), indicating the great potential in energy application. The long-term stability was 98.5% retention over 2,000 cycles, demonstrating the GQD-SnS2 composites are stable. The method developed in this work can be extended to the construction of other metal sulfide or metal oxide electrode materials for the broad variety of energy storage applications.

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