近年來，由於氫能源的高能量密度與無汙染排放的特性，獲得科學家的高度重視，而電催化產氫為現今較成熟且製造高純度氫氣的技術，但由於作為其催化材料的鉑產量稀少，造成成本過高而無法大規模的應用，因此本研究致力於開發用於電催化分解水且低成本的替代催化材料
本論文以微波輔助水熱合成法製備二硫化鉬奈米複合物，添加還原氧化石墨烯與三氧化鎢前驅物進入反應系統形成三元異質結構，目標藉此增加複合物之比表面積與反應活性。經由微波輔助水熱合成之二硫化鉬具有1T/2H混合相的特性且具有導電性較高的性質，相比於商用之二硫化鉬多為2H半導體相，導電性較差。以此為基礎添加三氧化鎢形成異質結構，增加催化劑的反應活性點。而後再添加還原氧化石墨烯，利用修正漢默法製備之氧化石墨烯經由微波輔助水熱系統還原成還原氧化石墨烯後與二硫化鉬、三氧化鎢形成三元複合物，除了石墨烯本身導電性良好之外，其結構上的缺陷也會增加催化反應進行時的活性點，預期能提高電催化產氫的效果。本實驗使用X光繞射儀、場發射掃描式電子顯微鏡分析其晶體結構、表面形貌，電子能譜儀分析表面化學組成，可見光/紫外光光譜儀分析光學性質，以三電極式電化學裝置進行產氫效能評估以及其長時間反應下的穩定性。

Hydrogen generation is one of the most important renewable energy technologies in these days, because its high energy density and environmental friendliness. In this study, we have synthesized a novel material, namely, reduced graphene oxide (rGO)/WO3/MoS2 nanocomposites and demonstrated its use as a electrocatalytic water splitting material. The WO3/MoS2 was first synthesized using either one-step or two-step microwave-assisted hydrothermal (MHT) method. Different ratios of the Transition metal dichalcogenides (TMDs) precursors were used in order to obtain WO3/MoS2 having various characteristics. rGO was then added also using the MHT technique. The rGO was added to enhance the electron transfer so that the electron-hole pair recombination is reduced or eliminated. Effects of the synthesis condition on the characteristics of the WO3/MoS2 and rGO/WO3/MoS2 nanocomposite were investigated. The hydrogen generation performance is discussed.

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