Materials aspects of titanium-doped aluminas: 14% Ti/γ-Al2O3/Cu and sulfided Al2O3–TiO2/NiMo
Yazarlar (2)
Lars-Olof Öhman
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Materials chemistry and physics (Q2) | ||
| Makale Dili | – | Basım Tarihi | 01-2002 |
| Cilt / Sayı / Sayfa | 73 / 2 / 242–251 | DOI | – |
| Makale Linki | https://www.sciencedirect.com/science/article/pii/S0254058401003923 | ||
| UAK Araştırma Alanları |
Dedektör Teknolojisi
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| Özet |
| Materials aspects of titanium-doped alumina catalysts are discussed in light of a partly new synthesis route, ion exchange reactions and sulfidation. Starting with a solution of the isopropoxides of aluminum and titanium, we aimed at an Al:Ti ratio of 6:1, which corresponds to the maximum acidity of the final product. Transmission electron micrographs showed that the synthesis gave a product of nearly monodisperse, rectangular particles and X-ray diffractograms revealed an amorphous to nano-crystalline structure reminiscent of γ-Al2O3. The Brunauer–Emmet–Teller area was 340m2g−1 and the H+ titration found 3acidic sitesnm−2. These numbers indicate that the titanium modification may fourfold increase the ion exchange capacity of a regular alumina. The importance of titanium modification for catalysis is discussed in connection with selective catalytic reduction with hydrocarbon reactions over Cu/14%Ti–Al2O3 … |
| Anahtar Kelimeler |
