NiMoO4浸渍对Cu3(PO4)2催化异丙醇转化活性的影响

IF 2.4 Q3 CHEMISTRY, MULTIDISCIPLINARY Moroccan Journal of Chemistry Pub Date : 2021-02-14 DOI:10.48317/IMIST.PRSM/MORJCHEM-V9I2.22470
M. Ouchabi
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引用次数: 0

摘要

因此,我们描述了在正磷酸铜上添加不同数量的镍氧化物(2- 14wt %的nimo4)的催化剂的合成和酸碱性质的表征。正磷酸铜的制备采用共沉淀法,其中我们通过多阶段浸渍多孔体积引入镍钼,然后在不同温度下在空气中煅烧。采用XRD对固体进行表征,在196℃下对氮气进行吸附。在180 ~ 400℃不同温度下催化异丙醇的转化。结果表明,固体ni /Cu主要由磷酸铜Cu 3 (po4) 2组成,次要相为nimoo4。镍钼含量越高,nimoo4结晶度越高。研究发现,随着nimoo4含量的增加,体系的比表面积(S BET)略有增加。通过脱水生成丙烯的异丙醇转化的催化活性随着负载程度的增加而增加。
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Effects of NiMoO4 impregnation on the catalytic activity of Cu3 (PO4)2 in the conversion of isopropanol
Hereby, we are describing the synthesis and characterization concerning acid -basic properties of catalysts containing varied amounts of NiMo (2-14 wt % of NiMoO 4 ) worn on copper orthophosphate whose its preparation was executed employing a co-precipitation method, to which we introduced the Nickel-Molydenum by impregnation with a porous volume at several stages, succeeded by calcination under air at a different temperature. The employed techniques for solids’ characterization were XRD to identify different phases, Nitrogen adsorption at-196°C. and catalytic conversion of isopropanol at different temperatures’ reaction ranging from 180 to 400 °C. The outcome revealed that the solids NiMo/CuP mainly consisted of copper phosphate Cu 3 (PO 4 ) 2 together with NiMoO 4 as minor phase. The NiMoO 4 crystallinity’s degree increases by increasing Nickel-Molydenum. It was discovered that the specific area (S BET ) of the studied system will slightly increase by the increase in NiMoO 4 content. The catalytic activity in isopropanol conversion which proceeds via dehydration yielding propene increases as a function of extent of loading.
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来源期刊
Moroccan Journal of Chemistry
Moroccan Journal of Chemistry CHEMISTRY, MULTIDISCIPLINARY-
CiteScore
3.40
自引率
9.10%
发文量
0
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