臺灣博碩士論文加值系統

隨著世界人口的增長及國際油價不斷的飆升，現今以原油發電為主的的發電技術已經逐漸無法負荷人類對於能源的需求。此外，環保意識的抬頭也讓人類開始對綠色能源技術產生濃厚的興趣並已經開始投入資源來進行相關的開發與投資。在眾多的綠色能源技術之中，電源轉換率最高的燃料電池技術就被公認為最具有潛能的綠色能源技術之一。
然而，即使燃料電池技術比起其他綠色能源技術擁有更高的電源轉換率，但一些尚待解決的技術問題以及高成本的製造費用卻形成了此項先進能源技術成為未來發電技術主流的絆腳石。因此，此研究的目的就是想要利用引文分析方法來探討燃料電池技術發展的主路徑；從中了解此項技術的主要問題並提供其未來發展趨勢以供燃料電池預測研究人員做為參考。本研究結果發現科學家除了已經可以掌握質子交換膜燃料電池（PEMFC）的技術之外，也開始轉向降低其製造成本的研究並開始逐漸被大量應用在汽車發電技術上。此外，另一個燃料電池技術，直接甲醇燃料電池（DMFC）則是因為始終存在著甲醇與水分滲透的問題，導致此技術還無法被大量推廣成為未來行動發電技術的主流。此外，高毒性的甲醇也是導致此技術一直無法被套用在行動電源技術上的主要原因之一。為了解決高毒性的問題，科學家最近也發明了乙醇燃料電池（DEFC）與甲酸燃料電池（DFAFC）技術，這兩項突破性的發明同時也被發現可以解決甲醇燃料電池的高成本及水分滲透的技術問題。由於這兩項新技術的發明擁有許多好處，這兩項發明已經被視為最有可能取代甲醇燃料電池而成為未來行動發電技術的主流。

As the power generation technologies with highest energy conversion efficiency, fuel cell technologies had long been identified as one of the most promising candidates for future power generation sources. However, major technological barriers such as cost, durability, size and water management issues are currently hindering the massive deployment of this clean energy technology. Hence, to assist in identifying the most promising fuel cell technologies for effective investment in the scarcity of resources, citation network analysis is adopted in this study to discover the latest trend in the field of fuel cell development. Result of our analysis shows that the Proton Exchange Membrane Fuel Cell’s (PEMFC) performance is almost reaching to an acceptable level and is ready for mass commercialization. On the other hand, the Direct Methanol Fuel Cell (DMFC) is still suffering on the methanol and water crossover problems. Due to the toxicity of methanol, Direct Formic Acid Fuel Cell (DFAFC) and Direct Ethanol Fuel Cell (DEFC) have recently emerged and will possibly replace the DMFC due to superior advantages and significantly lower cost of these new technologies.

Chapter 1 Introduction 1
1.1 Background and Motivation 1
1.2 Research Objectives 3
1.3 Research Questions 6
Chapter 2 Literature Review 7
2.1 Technological Trajectory 7
2.2 Citation Analysis 8
2.3 The g-index and the h-index 9
2.4 Main Path Analysis 11
2.4.1 Search Path Link Count (SPLC) 13
2.4.2 Search Path Nodes Pair (SPNP) 14
2.4.3 Search Path Count (SPC) 15
2.4.4 Local Main Path 16
2.4.5 Global Main Path 18
2.4.6 Global Key Route 19
2.5 Growth Curve Analysis 20
Chapter 3 Overview of the Fuel Cell Technology 22
3.1 The History of Fuel Cell 22
3.2 Basic Operation of Fuel Cell 23
3.3 Basic Components of Fuel Cell and Its Functions 25
3.4 Different Types of Fuel Cells 26
3.4.1 Alkaline Fuel Cell (AFC) 26
3.4.2 Molten Carbonate Fuel Cell (MCFC) 27
3.4.3 Phosphoric Acid Fuel Cell (PAFC) 28
3.4.4 Proton Exchange Membrane Fuel Cell (PEMFC) 29
3.4.5 Solid Oxide Fuel Cell (SOFC) 31
3.5 Advantages of Fuel Cell Technology 33
3.6 Fuel Cells Applications 35
3.6.1 Stationary Fuel Cell 36
3.6.2 Transportation Fuel Cell 37
3.6.3 Portable Fuel Cell 38
Chapter 4 Research Design 40
4.1 Research Framework 40
4.2 Research Methodology 42
4.2.1 Data Source 42
4.2.2 Information Extraction with Keywords 42
4.2.3 Basic Statistics Analysis 46
4.2.4 Growth Curve Analysis 46
4.2.5 Main Path Analysis 47
4.3 Research Limitations 49
Chapter 5 Results and Discussions 50
5.1 Basic Statistical Analysis 50
5.1.1 Most Influential Journals 50
5.1.2 Most Influential Authors 53
5.2 Fuel Cell Technologies Growth Curve Analysis 56
5.3 Main Path Analysis 58
5.3.1 Local Main Path and Global Main Path 59
5.3.2 Global Key Routes 111
5.3.3 Multiple Global Main Paths 117
Chapter 6 Conclusion and Future Works 129
6.1 Research Findings 129
6.1.1 Lifecycle of Fuel Cell Technologies 129
6.1.2 The Development Trajectory of Fuel Cell Technologies 129
6.2 Future Works 131
6.3 Research Contributions 131
6.4 Managerial Implications 132
References 134

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