異質摻雜奈米碳材能提升奈米碳材許多特性，譬如物理、化學、光學、結構特性，使奈米碳材能廣泛應用在電子元件、催化劑、除能裝置、複合材料及生醫方面等應用。然而，現今的摻雜方法通常需要複雜的真空系統，造成成本極高且無法量產，因此，能發展出在大氣常壓下且可控制的異質摻雜奈米碳材技術不僅可提升科學研究水準且更能廣泛應用在不同需求上。本研究發展出一在大氣常壓下前處理異質摻雜奈米碳材的合成方法，並成功分別摻雜硼、硫、氮及磷等元素於奈米碳管中。
此篇論文主要分為以下部分：第一章為摻雜奈米碳材介紹及文獻回顧，包含合成、特性改變、摻雜奈米碳材的相關應用及實驗動機；第二章詳細描述實驗流程及各種分析儀器包括X光光電子能譜、拉曼光譜、穿透式電子顯微鏡、掃描式電子顯微鏡、紫外光光電子能譜等等的規格及分析條件；第三章將討論硫元素摻雜多壁奈米碳管後的材料分析比較和摻雜後導電性、分散特性的提升及原因；此研究方法的相關延伸將敘述於第四章，不僅能和特定元素於多壁奈米碳管，包括硼、氮、磷等元素皆已實驗成功，而奈米碳材的選擇也非常多元，摻雜單壁碳管、石墨烯及石墨烯奈米帶亦適用此合成方法；最後硫摻雜多壁奈米碳管應用在表面增強拉曼訊號相關討論及結果討論將呈現在第五章。

Heteroatom doping can endow carbon nanomaterials with various enhanced optical, structural, and physicochemical properties, making carbon nanomaterials become a promising material in various applications including nanoelectronics, catalysis, energy storage, functional composites, and biomedical applications. However, current synthesis methods usually involve complicated vacuum systems, making it difficult to enable industrial-scale production. Consequently, the development of a controllable synthesis of heteroatom-doped carbon nanomaterials at atmospheric pressure will lead to important advances on both scientific studies and innovation applications. Therefore, we demonstrate a wet-chemistry-assisted pretreatment substitution method to produce heteroatom-doped carbon nanomaterial with varying heteroatoms including boron (B), sulfur (S), nitrogen (N) and phosphorus (P), which is under atmospheric pressure.
The thesis is organized in follows. Chapter 1 gives an introduction to the heteroatom-doped carbon nanomaterials. It provides a brief historical overview of synthesis, properties, and related applications of heteroatom-doped carbon nanomaterials. Chapter 2 describes the experimental set up and several characterization methods has been used. Chapter 3 discusses the properties of multi-walled carbon nanotubes (MWNTs) doped with sulfur atoms, including the increasing of conductivity and dispersion. Chapter 4 shows the extension of our proposed method, it is widely used on different kind of precursors doped on also graphene and related materials. Furthermore, the as-prepared sulfur-doped MWNTs shows the potential for surface enhanced Raman spectroscopy (SERS) substrate, which is discussed in chapter 5.

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