氫能被視為一種極具潛力的綠色能源，氫氣可藉由再生能源產生，使用時幾乎沒有污染，是潔淨的永續能源。氫氣燃燒後會產生水分，可以重複使用。氫能的產生勢必夾帶著如何儲存的問題，目前市面上常見的氫能儲存機制都是需要高壓低溫的環境。本研究為藉由太陽能產生氫氣泡，將儲氫材料及奈米氣泡理論互相結合，並且藉由Young-Laplace方程已知氣泡越小，內部壓力越大。若使用光催化方式產生氫氣，氫氣為奈米氣泡形式，長期存活的奈米氣泡理論可有效儲存氫氣。
本研究利用化學合成方法製作奈米光觸媒顆粒乘載於碳材上之複合材料，並使用穿透式電子顯微鏡、掃描式電子顯微鏡、粒徑分析儀、比表面積分析儀、儲氫量測分析等儀器觀察其形貌、粒徑分部、比表面積及儲氫能力。再藉由光催化水裂解產生氫氣泡，使用臨場濕式環境穿透式電子顯微鏡在有水溶液的環境中觀察生成之氣泡，探討奈米氣泡產生、儲存、運輸及釋放之可行性與過程。

Hydrogen is considered to be a promising green energy source. Hydrogen can be produced from renewable energy sources. It is almost pollution-free, clean and is a sustainable energy source. Water will be produced as hydrogen is burned, and water can be reused to produce hydrogen. Hydrogen storage is also another vital issue. The common hydrogen storage methods require high pressure and low temperature currently. In this study, our group apply nanobubble theory to hydrogen storage materials to make it able to store hydrogen at room temperature. It is well known that nanobubbles can live for a long period of time. Based on Young-Laplace equation, the smaller bubbles have bigger pressure inside. If hydrogen is generated by photocatalysis, hydrogen will be produced in the form of nanobubbles, and the long-lived nanobubble can store hydrogen effectively.
In this study, a chemical synthesis method is used to fabricate a composite material which nano photocatalyst particles load on carbon material. Hydrogen nanobubbles are generated by photocatalytic water splitting, and the process of nanobubbles formation is observed in liquid chamber by in-situ TEM.

摘要 i
Abstract ii
總目錄 iii
圖目錄 vi
表目錄 ix
第一章 緒論 1
1.1前言 1
1.2氫氣儲存方式 2
1.2.1液化氫氣儲存 2
1.2.2壓縮氫氣儲存 2
1.2.3固態氫氣儲存 3
1.3氫氣產生方式 4
1.4光觸媒簡介 6
1.4.1本多-藤嵨效應（Honda-Fujishima effect）[3] 6
1.4.2光觸媒材料特性 7
1.4.3光催化水分解原理 8
1.4.4二氧化鈦光觸媒特性與製備 9
1.4.5影響光催化速率的因素 13
1.5 奈米粒徑及介面電位量測簡介 18
1.6奈米氣泡簡介 20
1.7研究動機與目的 22
第二章 文獻回顧 23
2.1 碳材儲氫 23
2.2 碳球製備 27
2.2 觸媒製備 30
2.3產氫機制 32
第三章 實驗設計與規劃 35
3.1 實驗規劃 35
3.2 碳材上修飾觸媒奈米顆粒製備 35
3.2.1 製程方法 35
3.2.2 材料結構鑑定及分析 39
3.2.3 增加活性碳奈米顆粒之分散性 40
3.3 氫氣泡產生及觀測機制 41
3.4 實驗藥品與儀器 42
3.4.1 實驗藥品 42
3.4.2 實驗儀器 42
第四章 結果與討論 46
4.1 奈米光觸媒顆粒修飾於氧化石墨烯上(片狀) 46
4.1.1 穿透式電子顯微鏡(TEM)觀測 46
4.2 奈米光觸媒顆粒修飾於活性碳球上(球狀，商用) 49
4.2.1 掃描式電子顯微鏡(SEM)觀測 49
4.2.2 活性碳懸浮液之奈米粒徑及介面電位量測 50
4.3 奈米光觸媒顆粒修飾於活性碳球上(球狀，自製) 51
4.3.1 掃描式電子顯微鏡(SEM)觀測 51
4.3.2 BET比表面積量測 53
4.4奈米碳球儲氫能力量測 54
4.5臨場濕式環境穿透式電子顯微鏡觀測氣泡生成 57
第五章 結論 59
第六章 未來工作 60
第七章 參考文獻 61

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