| Summary: | 碩士 === 中國文化大學 === 材料科學與奈米科技研究所 === 96 === Accompanied by the advancements in science and technology, high oil price and increasing global environmental pollutions, researchers around the world are seeking renewable energy resources to fulfill the increasing demands. The objectives of this research are aiming at the developments of novel ordered nano-structured carbon mesoporous materials (CMMs) and novel metals (Pd, Pt) supported M-CMMs for applications in energy-related issues, such as hydrogen fuel storage and fuel cells.
The synthesis of M-CMMs were carried out by combining chemical liquid deposition (CLD) and replication methods using mesoporous SBA-15 silica as the template, primary carbon source (e.g., fufuryl alcohol), and metal acetylacetonates ((M[CH(COCH3)2]2)；M = Pd、Pt) as the primary metal source and secondary carbon sources. This is done by incorporating the mixed solution of carbon and metal sources into dehydrated SBA-15 silica via wetness incipient, followed by carbonization at elevated temperatures (600-800 oC). Subsequently, the M-CMMs can be obtained after removing the silica template by hydrophoric acid. M-CMMs prepared by various synthesis conditions (condensation time, duration and temperature of carbonization, and metal loading, etc.) were examined. Various analytical and spectroscopic techniques, such as powdered X-ray diffraction, N2 adsorption/desorption isotherm, inductively coupled plasma-mass spectroscopy, transmission electron microscopy, etc. were used to characterize the physical/chemical properties of the M-CMMs. In addition, the adsorptive properties of M-CMMs were tested by H2 chemisorption, and H2 uptake measurements and compared with bare CMMs.
The results obtained from this study should not only enhance fundamental understanding of the M-CMMs but also promote more efficient and practical applications of these materials in adsorption, catalysis, and energy-related areas, such as hydrogen fuel storage and fuel cells.
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