面對石油耗竭和溫室效應的衝擊，科學家努力找尋替代能源之時際，硼氫化鈉產氫成為近幾年持續被關注的新型能源，其具有快速產氫、極高安定性、不可燃、潔淨能源等優點，但其水解產氫反應緩慢，必須找尋適合之觸媒增快且控制其氫氣釋放速率。
本研究透過化學還原法和無電電鍍法兩種製程分別製備 Co-B powder 觸媒和 Co-B/Ni foam 觸媒，探討鍛燒溫度、還原劑濃度、螯合劑濃度、穩定劑濃度對觸媒的影響，透過 SEM 觀察其顆粒狀形貌、XRD 鑑定其結構、AA 分析含有的 Co/B 莫耳數比。在常溫常壓下進行硼氫化鈉鹼性溶液的水解產氫反應，探討不同硼氫化鈉濃度、氫氧化鈉濃度、溫度等對產氫之影響。
在本篇研究中發現化學還原法製備的 Co-B powder觸媒在不同鍛燒溫度下(60 ~ 700℃)，觸媒結構由非晶相結構轉變成結晶相結構，且觸媒外觀亦由圓粒狀轉變成片狀結構。本研究打破傳統觸媒需要鍛燒的觀念，發現不需經過高溫鍛燒即可以讓Co-B觸媒擁有極佳之產氫速率，如此可以大大減少能源的耗費。在室溫 (25 ℃) 下，10 wt% NaBH4 和 1 wt% NaOH溶液中，即可以促進產氫速率 761 mL/min-g cat.。而無電電鍍法製備的 Co-B/Ni foam 觸媒，初次產氫速率為 10900 mL/min-g CoB，而後透過改良無電鍍藥浴成分，0.26 M NaBH4 + 0.125 M NaOH + 0.1 M CoCl2 + 3.13 % NH4OH + 0.75 M NH4Cl 時，製成最佳之產氫觸媒，其產氫速率為 13900 mL/min-g CoB。而後在室溫下，最佳產氫操作條件方面，當硼氫化鈉濃度由 1 wt% 增至 20 wt%，產氫速率為從 7300 mL/min-g CoB 增至最高 13900 mL/min-g CoB 又降到 10300 mL/min-g CoB；改變氫氧化鈉濃度，由 1 wt% 到15 wt%，產氫速率為從 9400 mL/min-g CoB 增至最高 13900 mL/min-g CoB 後，也稍降到 10500 mL/min-g CoB。增加反應溫度，產氫速率也會變快，由產氫速率之對數值，計算其活化能為 47.7 kJ/mol。
對於硼氫化鈉產氫系統而言，本研究證實Co-B觸媒是一個製作簡單、高產氫效率且低成本的觸媒。

To develop a low-cost high-performance catalyst for hydrogen generation from base-stabilized NaBH4 solution, Co-B powder catalyst were prepared by chemical reduction method and Co-B/Ni foam catalyst were prepared by electroless plating method.
In this study, we discuss the process of catalyst preparation affect the hydrogen generation. The prepared Co-B powder catalyst exhibited the hydrogen generation rate of 761 mL/min-g cat. from 5 wt% NaBH4 + 10 wt% NaOH solution at 25 o C. In fact, the calculation didn’t increase the hydrogen generation rate. And the prepared Co-B/Ni foam powder catalyst showed 10900 mL/min-g cat. under the same condition. Besides, catalyst had the highest hydrogen generation rate of 13858 mL/min-g cat. which was made from bath with 0.26 M NaBH4, 0.125 M NaOH, 0.1 M CoCl2, 3.13 % NH4OH, and 0.75 M NH4Cl. SEM, XRD, and AA analysis revealed that the prepared Co-B catalyst consisted of amorphous Co-B compound with particle-like structure.
To design a hydrogen generator, hydrogen generation rate was measured by using the Co-B catalyst as a function of NaBH4 concentration, NaOH (a base-stabilizer) concentration, and solution temperature. With increasing solution temperature, hydrogen generation rates increased and activation energy for the hydrogen generation reaction was measured to be 47.7 kJ/mol. With increasing NaBH4 concentration from 1 to 20 wt% in NaBH4 and 5 wt% NaOH solution at 25 o C, at first, hydrogen generation rate increased from 7300 to 15900 mL/min-g CoB and then decreased to 10300 mL/min-g CoB. While it increased from 9400 to 15900 mL/min-g CoB with increasing NaOH concentration from 1 to 10 wt% in 10 wt% NaBH4 and NaOH solution at 25 o C. From these experimental results, the Co-B/Ni foam catalyst is a useful and high efficiency catalyst.

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