電化學分解水之電極材料製備與效率探討

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姓名

陳景羣(Ching-chun Chen) 查詢紙本館藏

畢業系所

化學工程與材料工程學系

論文名稱

電化學分解水之電極材料製備與效率探討
(The Preparing and The Study of Efficiency of Electrodes’ Materials of Electrochemical Water Electrolysis)

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摘要(中)

氫能是個乾淨又環保的能源，同時具備有高能量的密度，由於氫氣燃燒過後的產物僅為水，在現今石油價錢持續攀升的處境，許多國家期望氫能能夠替代現在的石化能源。電解水(water electrolysis)是一種目前較為成熟的產氫的技術，只是在電解水的過程中會消耗大量的電能，所以如何提升效率是個當前重要的課題。
提升效率有多種方法，本文欲其電極材料結構之表面積增加，利用不鏽鋼網本身的孔洞以及在鎳板上鋪PS球產生孔洞等兩種方法製作電極材料，比較兩種提升電解水效率的方法。
本實驗中分為兩個部分，第一部分以不鏽鋼網當作基材做為材料，再以鎳(Ni)、鈷(Co)和鎳、鐵(Fe)以共沉積方法沉積在其表面，並以5%氫氣環境下燒結還原。第二部分以鎳板作為基材，將Polystyrene particles (PS)利用spin coating的方式鋪在基材表面，再利用共沉積和大氣下燒掉PS球並再通氫燒結還原，最後分別進行XRD、SEM等材料分析、電化學分析和電解水產氫。

摘要(英)

Hydrogen is a clean and green energy, and it has high energy density. Recently, the price of oil becomes higher and higher, so many countries hope fossil energy will be in place of hydrogen energy because of water only after burning. Water electrolysis is one of ripe skills for hydrogen evolution but it consumes a lot of electric energy. Therfore, how to rise the efficiency of water electrolysis is an important issue nowadays.
There are many ways of rising the efficency. In this study, we prepare the electrodes using by stainless steel mesh and the porous structure of nickel substrate resulting from PS paricles to increase the surface area of electrodes. Then, we compare the efficiency between the two ways.
In this study, we have two parts of experiment. The first part, we use stainless steel mesh as substrate, and co-deposite nickel(Ni), colbalt(Co) and nickel, iron(Fe) on substrates respectively, then sintering in 5% hydrogen enviroment. The second part, we use spin coating to coat PS particles on nickel substrate, and burning in the air, and then sintering in 5% hydrogen enviroment. We do materials analyzing by SEM and XRD, and electrochemical analyzing, and hydrogen evolution.

關鍵字(中)

★ 電極
★ 電解水
★ 產氫

關鍵字(英)

★ Electrode
★ water electrolysis
★ hydrogen evolution

論文目次

摘要 I
Abstract II
致謝 IV
目錄 V
圖目錄 VII
表目錄 XI
第一章緒論 1
1.1 前言 1
1.2 研究動機 4
第二章理論與文獻回顧 5
2.1 電解水產氫原理 5
2.2 電解水發展近況 7
2.3 文獻回顧 9
2.3.1 Ni-S系 10
2.3.2 Ni-Co系 13
2.3.3 Ni-Cu系 15
2.3.4 Fe-Ni系 16
第三章實驗方法 17
3.1 實驗藥品 17
3.2 實驗設備 18
3.3 分析儀器 19
3.4 SS為電極基材實驗步驟 20
3.4.1實驗流程 20
3.4.2基材清洗 20
3.4.3電極材料製備 20
3.5 Ni板為電極基材實驗步驟 22
3.5.1實驗流程 22
3.5.2基材清洗 22
3.5.3Spin coating PS球於基材 22
3.5.4電極材料製備 23
3.6 電極材料分析 24
3.7 過電位計算 27
第四章結果與討論 28
4.1 SS mesh為電極基材 28
4.1.1 SEM表面形貌分析 28
4.1.2 XRD結構分析 31
4.1.3 電化學特性分析 33
4.1.4 電解水產氫 40
4.2 Ni板為電極基材 41
4.2.1 SEM表面形貌分析(PS球塗佈) 41
4.2.2 SEM表面形貌分析(電化學沉積後) 45
4.2.3 XRD結構分析 49
4.2.4 電化學特性分析 51
第五章結論 57
參考文獻 59

參考文獻

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指導教授

李岱洲(Tai-chou Lee)

審核日期

2014-7-29

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