Effect of ZrO2 on the Structure of NiO/CeO2/γ-Al2O3 Composite Catalysts
Source abstract
Abstract
以Ni（NO3）2·6H2O、Al（NO3）3·9H2O、ZrOCl2·8H2O和Ce（NO3）3·6H2O为原料,采用共沉淀法分别制备了NiO/CeO2/γ-Al2O3和NiO/CeO2-ZrO2/Al2O3催化剂.通过X射线衍射（XRD）、透射电子显微镜（TEM）和近边X射线吸收精细结构（XANES）等方法对催化剂的组成结构进行表征.结果表明,煅烧温度高于600℃时,NiO/CeO2/γ-Al2O3催化剂中的NiO与γ-Al2O3载体发生作用,形成NiAl2O4尖晶石;而NiO/CeO2-ZrO2/Al2O3催化剂中,NiO能够稳定存在,没有NiAl2O4尖晶石生成,且Al2O3与CeO2和ZrO2作用形成一种新的Zr0.30Ce0.45Al0.25O1.87固溶体.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Catalytic Processes in Materials Science · Catalysis and Oxidation Reactions · Catalysis and Hydrodesulfurization Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (11)
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