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Co/Mo/γ-Al2O3的制备、表征及其催化合成邻苯二甲醛
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Abstract:
本文以硝酸钴为钴源、钼酸铵为钼源，γ-Al2O3为载体，采用浸渍法得到一系列不同钴钼含量的Co/Mo/γ-Al2O3催化剂。采用热失重分析、扫描电镜、X射线衍射、NH3程序升温脱附、X射线光电子能谱及BET物理吸附等方法对样品进行了表征，并考察了催化剂在邻苯二甲醇过氧化氢氧化反应中的催化性能。结果表明，所制备的Co/Mo/γ-Al2O3具有较大的比表面积和孔径，有利于邻苯二甲醛的生成，可使目标产物获得较高转化率。
A series of Co/Mo/γ-Al2O3 with different cobalt and molybdenum loadings were synthesized under the impregnation method, using cobalt nitrate as the cobalt source and ammonium molybdate as the molybdenum source respectively. The catalyst samples were characterized by thermogravi-metric analysis, scanning electron microscope, X-ray diffraction, NH3 temperature programmed desorption, X-ray photoelectron spectroscopy and BET. The catalytic performance of the catalysts was evaluated for oxidation of 1,2-benzenedimethanol into phthalaldehyde by H2O2. The results show that the prepared catalysts have larger surface area and pore size, which was beneficial to the formation of phthalaldehyde, and could make the target product obtain high conversion rate.
| [1] | Juhlin, L. and Shelley, W.B. (1966) Detection of Histamine by New Fluorescent o-Phthalaldehyde Stain. Journal of Histochemistry & Cytochemistry, 14, 525-528. https://doi.org/10.1177/14.7.525 |
| [2] | Alfa, M.J. and Sitter, D.L. (1994) In Hospital Evaluation of Orthophthalaldehyde as a High Level Disinfectant for Flexible Endoscopes. Journal of Hospital Infection, 26, 15-26. https://doi.org/10.1016/0195-6701(94)90075-2 |
| [3] | Cabrera-Martinez, R.M., Setlow, B. and Setlow, P. (2002) Studies on the Mechanisms of the Sporicidal Action of Ortho-Phthalaldehyde. Journal of Applied Microbiology, 92, 675-680. https://doi.org/10.1046/j.1365-2672.2002.01572.x |
| [4] | 刘鸿. 邻苯二甲醛合成新工艺[J]. 精细化工中间体, 2004, 34(4): 45-47. |
| [5] | 徐克勋. 精细有机化工原料及中间体手册[M]. 北京: 化学工业出版社, 2004. |
| [6] | 成西涛, 唐璇, 王思晨, 等. 邻苯二甲醛合成新工艺研究[J]. 应用化工, 2007, 36(8): 767-769. |
| [7] | 成西涛. 邻苯二甲醛消毒剂的合成工艺研究[D]: [硕士学位论文]. 西安: 西北大学, 2006. |
| [8] | Jacques, G. (1979) Multiple Substituted o-Phthalaldehyde. US Patent EP19793230. |
| [9] | Naruhisa, H. and Shi, H. (1999) Process for Producing Dialdehyde. US Patent EP1078908. |
| [10] | Anderson, E.B., Buchmeiser, M.R., Hermanutz, F. and Ingildeev, D. (2012) Synthesis and Dry-Spinning Fibers of Sulfinyl-Based Poly(P-Phenylene Vi-nylene) (PPV) for Semi-Conductive Textile Applications. Journal of Materials Chemistry, 22, 11851-11860. https://doi.org/10.1039/c2jm30186e |
| [11] | Sarvesh, K., Pulikottil, C., Sharma, A., et al. (2007) Adsorbent Composition for Removal of Refractory Sulphur Compounds from Refinery Streams and Process Thereof. US Patent 20070023325. |
| [12] | 徐世杰, 季祥, 刘彬, 等. 响应面法优化新型磁性固体酸催化地沟油甘油酯化的工艺[J]. 湖北农业科学, 2016, 55(5): 1261-1263. |
| [13] | Jiao, F. and Frei, H. (2009) Nanostructured Cobalt Oxide Clusters in Mesoporous Silica as Efficient Oxygen-Evolving Catalysts. Angewandte Chemie International Edition, 48, 1841-1844. https://doi.org/10.1002/anie.200805534 |
| [14] | Borg, ？., Blekkan, E., Eri, S., et al. (2007) Effect of Calcination Atmosphere and Temperature on γ-Al2O3 Supposed Cobalt Fischer-Tropsch Catalysts. Topics in Catalysis, 45, 39-43. https://doi.org/10.1007/s11244-007-0237-4 |
| [15] | Martinez, A., Gonzalo, P. and Rollan, J. (2009) Nano Brous-A12O3 as Suppo for Co-Based Fischer？Tropsch Catalysts: Pondering the Relevance of Diffusional and Dispersion Effects on Catalytic Performance. Journal of Catalysis, 263, 292-305. https://doi.org/10.1016/j.jcat.2009.02.021 |
| [16] | 俞超. Ga2O3/HZSM-5催化剂在乙烷脱氢反应中的积碳行为与表面酸性能的调变作用[J]. 化学学报, 2011(5): 28-35. |
