C, N Co-Decorated Alumina-Supported Au Nanoparticles:Enhanced Catalytic Performance for Selective Hydrogenation of Acetylene

被引：4
|
作者：
Zhang, Yuan [1 ]
Sun, Xun [1 ]
Zhao, Yali [1 ]
Su, Huijuan [1 ]
Murayama, Toru [1 ,2 ]
Qi, Caixia [1 ]
机构：
[1] Yantai Univ, Yantai Key Lab Gold Catalysis & Engn, Shandong Appl Res Ctr Gold Nanotechnol, Sch Chem & Chem Engn, Yantai 264005, Peoples R China
[2] Tokyo Metropolitan Univ, Res Ctr Gold Chem, 1-1-F203 Minami Osawa, Hachioji, Tokyo 1920397, Japan
来源：
TOPICS IN CATALYSIS | 2021年 / 64卷 / 3-4期
关键词：
Au catalysts; Acetylene; Catalytic hydrogenation; CN co-decorated materials; REDUCED GRAPHENE OXIDE; DOPED CARBON; ACID-RESISTANT; LARGE EXCESS; GOLD; NITROGEN; ETHYLENE; SEMIHYDROGENATION; EFFICIENT; SURFACE;
D O I：
10.1007/s11244-020-01378-w
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The modifications of support for the dispersion and immobilization of gold nanoparticles were examined for the selective hydrogenation of acetylene to ethylene. The catalyst, denoted as Au/CNA, was prepared by the carbonization of C and N atom-containing organic precursors on Al2O3, which were subsequently used as supports for gold nanoparticles. The TOF value of Au/CNA was five times higher than that of Au/Al(2)O(3)at 250 degrees C. The carbonization modification of Al(2)O(3)support without N species showed almost no change in catalytic activity. Therefore, the improved catalytic performance of Au/CNA is related to the interactions of the N species on the CNA support with nano-gold particles. From the XPS analysis, electron transfer between gold and C, N co-doped species may play an important role in the high levels of Au active site utilization. This study may provide new avenues for the construction of organic/inorganic composite materials for efficient catalytic hydrogenation applications.
引用
收藏
页码：197 / 205
页数：9
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