A remarkable enhancement of catalytic activity for KBH4 treating the carbothermal reduced Ni/AC catalyst in glycerol hydrogenolysis
A remarkable enhancement of catalytic activity for KBH4 treating the carbothermal reduced Ni/AC catalyst in glycerol hydrogenolysis
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DOI：
10.1016/j.catcom.2009.12.009
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发表时间：
2010-01
影响因子：
3.7
通讯作者：
Weiqiang Yu;Jie Xu;Hong Ma;Cheng Chen;J. Zhao;H. Miao;Q. Song
中科院分区：
文献类型：
--
作者：
Weiqiang Yu;Jie Xu;Hong Ma;Cheng Chen;J. Zhao;H. Miao;Q. Song
报道了一种制备甘油氢解Ni/AC催化剂的新工艺，该工艺包括负载型硝酸镍的碳热还原和KBH4的进一步处理。与KBH4、H_2或碳热还原Ni/AC催化剂相比，所制备的催化剂活性显著提高。用X射线衍射仪、透射电子显微镜、FT-IR、He-TPD和NH3-TPD技术研究了Ni粒子及其表面含氧基团的变化。高分散的镍和OSG生成的酸性对甘油氢解活性有协同作用。
It reported a novel procedure for preparing Ni/AC catalyst for the glycerol hydrogenolysis, which involved carbothermal reduction of supported nickel nitrate and further treatment with KBH4. The activity of the as-prepared catalyst was remarkably enhanced compared with KBH4, H2or carbothermal reduced Ni/AC catalyst. The Ni particles and the variation of oxygen-containing surface groups (OSGs) were studied by XRD, TEM, FT–IR, He-TPD and NH3-TPD techniques. The high dispersed Ni and the acidity generated by the OSGs have the synergy effect on the activity of glycerol hydrogenolysis.