Effect of ZnO incorporation on Cu–Ni/Al2O3 catalyst for glycerol hydrogenolysis in the absence of added hydrogen
| العنوان: | Effect of ZnO incorporation on Cu–Ni/Al2O3 catalyst for glycerol hydrogenolysis in the absence of added hydrogen |
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| المؤلفون: | Tao Jiang, Fahai Cao, Danni Kong, Kun Xu |
| المصدر: | Applied Petrochemical Research. 5:221-229 |
| بيانات النشر: | Springer Science and Business Media LLC, 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | Hydrogen, Inorganic chemistry, Sintering, chemistry.chemical_element, Catalysis, chemistry.chemical_compound, chemistry, Hydrogenolysis, Glycerol, General Earth and Planetary Sciences, Dehydrogenation, Bimetallic strip, Bond cleavage, General Environmental Science |
| الوصف: | A series of Cu–Ni bimetallic catalysts were developed and used for glycerol hydrogenolysis to produce 1,2-propanediol in the absence of added hydrogen along with the isopropanol as hydrogen donor. The monometallic Cu catalyst can catalyze the dehydrogenation of isopropanol effectively, but the Cu species would be oxidized to Cu+ which led to the catalyst deactivation. Ni incorporation can change the reduction behavior of Cu catalyst and the formation of Cu–Ni alloy might promote the hydrogenation of acetol. Furthermore, the effect of ZnO incorporation on the catalytic performance of Cu–Ni/Al2O3 bimetallic catalyst for glycerol hydrogenolysis in the absence of added hydrogen was investigated. The addition of ZnO enhanced the acidity of catalyst surface, resulting in higher C–O bond cleavage activity. Comparing the H2-TPR profiles of Cu–Ni/Al2O3 with Cu–Ni/ZnO–Al2O3, it could be clearly observed that the reduction temperature was decreased remarkably by the addition of ZnO. XRD and SEM images revealed that the addition of ZnO inhibited the catalyst sintering and favored the formation of the strong interaction between Cu–Ni species and Al2O3 by the formation of the ZnAl2O4 phase. |
| تدمد: | 2190-5533 2190-5525 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::813e936822c8da639e52ad76f365dd5eTest https://doi.org/10.1007/s13203-015-0125-yTest |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....813e936822c8da639e52ad76f365dd5e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 21905533 21905525 |
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