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引用次数: 0
摘要
甘油的选择性氧化一直被认为是高效转化和利用甘油的途径之一。本文以廉价易得的非贵金属 CuCo 为载体，在 Ti 改性 SBA-15 上制备了一系列支撑型非贵金属催化剂，并评估了催化剂在甘油选择性氧化制取酒石酸过程中的催化效果。通过 XRD、XPS、傅立叶变换红外光谱、BET、扫描电镜和 TEM 对 CuxCoy/Ti-SBA-15 催化剂的性质进行了表征。结果表明，Cu 和 Co 均匀地分布在 Ti-SBA-15 表面，并保持了 SBA-15 的原始结构。通过价态变化的协同效应，可以提高 CuO 和 Co3O4 的催化活性。此外，在最佳反应条件下，甘油转化率为 53.8%，酒石酸选择性为 54.5%。经过五个循环后，该催化剂仍保持良好的再利用性能。
CuCo/Ti-SBA-15 Catalyst for Glycerol Selective Oxidation
Selective oxidation of glycerol has been considered to be one of the ways of efficient conversion and utilization of glycerol. This paper reported the preparation of a series of supported non-noble metal catalysts on Ti modified SBA-15 supported by CuCo, a cheap and readily available non-noble metal, and evaluated the catalytic effect of the catalysts in the selective oxidation of glycerol to produce tartronic acid. The properties of CuxCoy/Ti-SBA-15 catalysts were characterized by XRD, XPS, FT-IR, BET, SEM and TEM. The results showed that Cu and Co were uniformly distributed on the surface of Ti-SBA-15 and the original structure of SBA-15 was maintained. The catalytic activity of CuO and Co3O4 can be improved through the synergistic effect of valence change. In addition, the glycerol conversion was 53.8% and tartronic acid selectivity was 54.5% under the optimal reaction conditions. After five cycles, the catalyst still maintained good reuse performance.
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Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis.
The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.
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