本研究以擔載氧化鎵奈米粒子於奈米碳管外表面與嵌置於孔道內作為硬模板，並結合蒸氣輔助結晶法來製備介孔Ga/ZSM-5觸媒。透過一系列的觸媒物化性鑑定，比較發現使用這兩種硬模板製備的介孔Ga/ZSM-5觸媒，其結晶度、介孔性及鎵的共價配位環境皆很相似。但是以嵌置GaOx於孔道內之奈米碳管作為硬模板的Ga/ZSM-5，因其內部的GaOx比擔載於外表面上的GaOx具有較低的可還原性，於鍛燒時較容易產生揮發性的Ga+ 蒸氣，使其所擔載的(GaO)+濃度提高並具備較強的路易斯酸強度。
此外，與原始ZSM-5相比，發現以嵌置GaOx於孔道內之奈米碳管作為硬模板來合成觸媒，其布朗斯特酸的濃度可以被完好的保存下來。因此進而增強GaO+與布朗斯特酸之間的協同效應，而提升甲醇轉芳香化反應之活性及芳香烴之選擇率，且經由不同反應條件下測試觸媒活性後發現其芳香族產率明顯遠高於其他方法所合成觸媒，且觸媒壽期也略微提升。

A combinative approach of steam-assisted crystallization and hard templating was employed to prepare mesostructured Ga/ZSM-5 catalysts. Carbon nanotubes (CNTs) containing gallium oxide nanoparticles supported on the exterior surface and confined in the inner space were used as the templates. A comparative study showed that by using these two templates, the crystallinities, mesoporosities, and Ga coordination environments of mesostructured Ga/ZSM-5 catalysts were similar. However, a stronger strength of Lewis acid of Ga/ZSM-5 was obtained using the GaOx-encapsulated CNTs as the template. Encapsulated GaOx was less reducible than those supported on the exterior surface of CNTs, resulting in an increased concentration of isolated (GaO)+. Moreover, compared to pristine ZSM-5, the concentration of Brønsted acid was nearly intact by using GaOx-encapsulated CNTs as the templates. A better methanol aromatization performance was achieved by the Ga/ZSM-5 made by using GaOx-encapsulated CNTs.

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