Active skeletal Ni catalysts prepared from Ni-Zr amorphous alloys by oxygen treatment

作者：Nozaki Ai; Tanihara Yasutomo; Kuwahara Yasutaka; Ohmichi Tetsutaro; Kamegawa Takashi; Mori Kohsuke; Yamashita Hiromi^*

来源：Applied Catalysis A: General , 2015, 504: 559-564.

DOI：10.1016/j.apcata.2015.01.016

• Amorphous alloys
• Skeletal catalyst
• Hydrogenation
• Oxygen treatment

Skeletal Ni catalysts were prepared from an amorphous Ni40Zr60 alloy (a-NiZr) by the selective extraction of Zr moieties by the HF treatment, followed by heating at various temperatures under vacuum, oxygen and hydrogen atmosphere. The HF treatment selectively extracted Zr moieties from a-NiZr, which resulted in the formation of high-surface-area and skeletal Ni metals. The oxygen treatment at 423 K and following hydrogen treatment at 473 K enhanced the catalytic activities of the skeletal Ni catalyst in the hydrogenation reaction of 1-octene with molecular H-2. The temperatures and atmosphere of the pretreatment strongly affected to the catalytic performances of the skeletal Ni catalysts.

• 出版日期2015-9-5