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Promoting Role of Bismuth on Hydrotalcite-Supported Platinum Catalysts in Aqueous Phase Oxidation of Glycerol to Dihydroxyacetone

التفاصيل البيبلوغرافية
العنوان: Promoting Role of Bismuth on Hydrotalcite-Supported Platinum Catalysts in Aqueous Phase Oxidation of Glycerol to Dihydroxyacetone
المؤلفون: Wenjie Xue, Zenglong Wang, Yu Liang, Hong Xu, Lei Liu, Jinxiang Dong
المصدر: Catalysts, Vol 8, Iss 1, p 20 (2018)
بيانات النشر: MDPI AG, 2018.
سنة النشر: 2018
المجموعة: LCC:Chemical technology
LCC:Chemistry
مصطلحات موضوعية: Mg–Al hydrotalcite, platinum–bismuth nanoparticles, co-impregnation, glycerol oxidation, dihydroxyacetone, Chemical technology, TP1-1185, Chemistry, QD1-999
الوصف: Bismuth plays important roles in promoting the oxidation of alcohols towards high-value-added chemicals over a noble metal loading catalyst. Herein, Mg–Al hydrotalcite-supported platinum–bismuth nanoparticles (Pt–Bi/HT) were prepared by the co-impregnation method and used in the selective oxidation of glycerol towards dihydroxyacetone (DHA). The incorporation of Bi species into Pt/HT significantly enhances the conversion of glycerol and the selectivity of DHA. The high selectivity of DHA with 80.6% could be achieved at 25.1% conversion of glycerol. The Bi species of the Pt–Bi/HT catalyst mainly exist in the form of BiOCl and Bi metal, which is different from the previous Pt–Bi based catalyst, confirmed by a combination of powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and high-resolution transmission electron microscopy (HR-TEM). A plausible mechanism is proposed to elucidate the promoting role of Bi species on the Pt/HT catalyst in the selective oxidation of glycerol towards DHA.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2073-4344
Relation: http://www.mdpi.com/2073-4344/8/1/20; https://doaj.org/toc/2073-4344
DOI: 10.3390/catal8010020
URL الوصول: https://doaj.org/article/50e0fc834d9f4528a80d4225d76e15c6
رقم الأكسشن: edsdoj.50e0fc834d9f4528a80d4225d76e15c6
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20734344
DOI:10.3390/catal8010020