本研究成功地以改良式疏水性膠囊化合成方法將NiO奈米粒子合成於規則介孔SBA-15材料之限制空間內，其奈米粒子之尺寸不但與本實驗室先前所開發之疏水膠囊化(hydrophobic encapsulation)製程相當，並可將製程簡化，縮短製程時間。而所合成之奈米觸媒粒子亦較一般方式小，並均勻地分散於限制空間內且無阻塞的問題，即使於高負載量仍能維持此特性( NiO平均粒徑由1.54 nm(負載量為5 wt%)些微增加至2.51 nm(負載量20 wt%))。
上述方式合成之NiO/SBA15奈米複合材料對乙醇蒸氣重組反應(Steam reforming of ethanol reaction , SRE)有良好之產氫效率，當Ni的負載量為10 wt%時，有最佳的單位觸媒重量反應活性：以WHSV
=9.6 h-1，觸媒重量0.1 g的反應條件，於500 oC 下，乙醇轉化率可達100 %，H2選擇率為86.4 %，CO2選擇率為64.4；當Ni的負載量為20 wt%時，積碳的效應造成觸媒表面碳化，使觸媒活性面積下降，500 oC 下，H2選擇率為59.5 %，CO2選擇率為46.3 %。
為了探討添加第二金屬Cu在SRE反應中所產生的效應，並避免SBA-15可能之孔洞堵塞，本研究以Ni5/SBA15為基礎，製備不同Ni/Cu比例的雙金屬觸媒，發現Cu的添加會降低Ni的晶粒尺寸，提高其分散性，使Ni活性面積增加，當Ni與Cu的重量比為1：1時觸媒有最佳的活性(NiCu55/SBA-15)，於500 oC 下，乙醇的轉化率可達100 %，H2的選擇率為71.8 %，CO2、CO、CH4選擇率分別為56.8 %、8.6 %、34 %；而Ni負載量5 wt%時(Ni5/SBA15)，乙醇的轉化率為85.3 %，H2的選擇率為45 %，CO2、CO、CH4及CH3CHO選擇率分別為13.8 %、4 %、2.6 %、42.8 %，經碳平衡方程式計算後得知Cu有抑制積碳的效果(Ni5/SBA15積碳速率為1.14 (mol/unit time)；NiCu55/SBA15積碳速率為0.192(mol/unit time))。
為了再提升觸媒產氫的效率及改善觸媒積碳的問題，本研究以能夠儲存與釋放晶格氧的導氧離子材料-CeO2來改質擔體(SBA-15)，發現CeO2能有效地抑制積碳，促進甲烷蒸氣重組反應並利用其晶格氧將吸附在表面的CH4或CO氧化成CO2，其NiCu55/ CeO2-10/SBA15
(CeO2的含量為10 wt%)於600 oC下有最好的觸媒活性，其乙醇轉化率為100 %，H2選擇率為100 %，CO2、CO、CH4選擇率分別為61.4 %、24 %、5.8 %。

In this study, simple method for confined synthesis of NiO nanoparticles in the pore channels of SBA-15 has been developed by the modified hydrophobic encapsulation route. The developed route greatly shortens the process time which longer time is required for the hydrophobic encapsulation route. Further, the fact of blockage-free nature in the pore channels with the confined small NiO nanoparticles is almost identical to that obtained from the original hydrophobic encapsulation route.The formed NiO nanoparticles are highly uniform and well distributed in the confined space without blocking the pore channels until 20 wt% of Ni loading. The average grain size of NiO slightly increases from 1.54 nm (5 wt%) to 2.51 nm (20 wt%)).
After reduction, the synthesized NiO/SBA15 shows excellent ability to steam reforming of ethanol reaction (SRE) for hydrogen production. It shows that Ni10/SBA-15 possesses the best catalytic performance: with 0.1 g of Ni10/SBA-15 and 9.6 h-1 of WHSV, 100 % ethanol conversion is achieved at 500 oC with H2 selectivity of 86.4 % and CO2 selectivity of 46.3 %.
To further improve the hydrogen production efficiency, the role of Cu is studied with NiCu/SBA15 catalysts. To avoid the possible blockage, Ni5/SBA15 (5 wt% Ni) is employed for modification of Cu. It is found that incorporation of Cu improves the dispersity of Ni. It should be noticed that addition of Cu seems to weaken the interaction between Ni and SiO2. Among the NiCu/SBA-15 catalysts, NiCu55/SBA15 shows the best catalytic performance on SRE: with 0.1 g of NiCu55/SBA15 and 9.6 h-1 of WHSV, 100 % conversion of ethanol is achieved at 500 oC with 71.8 % of H2 selectivity, 56.8% of CO2 selectivity, 8.6% of CO selectivity and 34% of CH4 selectivity. Coking rate can also be hindered with addition of Cu. (Ni5/SBA15:1.14 mol C/unit time; NiCu55/SBA15: 0.192 mol C/unit time)
In order to promote the efficiency of hydrogen production and inhibitation of coke formation resistance, CeO2 is further incorporated since the lattice oxygen can be stored and released from CeO2. It is found that coking problem can be effectively solved by CeO2. SRE can be improved as well. With 10 wt% of CeO2 (NiCu55/ CeO2-10/ SBA15), the highest catalytic activity is shown. (100% conversion of ethanol at 600 oC, 100% of H2 selectivity, 61.4% of CO2, 24% of CO, 5.8% of CH4)

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