Study on the promoting effect of nickel silicate for 1-phenylethanol oxidation on supported NiO nanocluster catalysts
Study on the promoting effect of nickel silicate for 1-phenylethanol oxidation on supported NiO nanocluster catalysts
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DOI：
10.1016/j.cattod.2017.05.076
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发表时间：
2017-06
期刊：
影响因子：
5.3
通讯作者：
Takuro Sasaki;N. Ichikuni;Takayoshi Hara;S. Shimazu
中科院分区：
文献类型：
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作者：
Takuro Sasaki;N. Ichikuni;Takayoshi Hara;S. Shimazu
通过不同的前驱体、载体和空气中焙烧温度制备负载型NiO催化剂。XAFS研究表明，以[Ni（NH3）6]2+为前驱体和SiO2为载体制备的催化剂上，NiO纳米团簇形成了Ni-O-Si复合结构。Ni-O-Si复合结构与NiO纳米团簇共存时，催化剂对1-苯乙醇的氧化活性明显高于单独的NiO纳米团簇，表明Ni-O-Si复合结构对该反应具有促进作用。
Supported NiO catalysts were prepared by different precursor, support and temperature of the calcination in air. XAFS measurements revealed that Ni-O-Si complex structure formed with NiO nanocluster on catalysts prepared by using [Ni(NH3)6]2+and SiO2as a precursor and support, respectively. Coexistence of Ni-O-Si complex structure with NiO nanocluster resulted in the higher activity for 1-phenylethanol oxidation compared to NiO nanocluster only, which indicated that Ni-O-Si complex structure had the promoting effect for this reaction.