Active metal (cadmium) doping enhanced the stability of inert metal (gold) nanocluster under O2 atmosphere and the catalysis activity of benzyl alcohol oxidation

被引：27
作者：
Deng, Huijuan [1 ,2 ]
Wang, Shuxin [1 ,2 ]
Jin, Shan [1 ,2 ]
Yang, Sha [1 ,2 ]
Xu, Yajie [1 ,2 ]
Liu, Lingli [1 ,2 ]
Xiang, Ji [1 ,2 ]
Hu, Daqiao [1 ,2 ]
Zhu, Manzhou [1 ,2 ]
机构：
[1] Anhui Univ, Dept Chem, Hefei 230601, Anhui, Peoples R China
[2] Anhui Univ, Ctr Atom Engn Adv Mat, Hefei 230601, Anhui, Peoples R China
来源：
GOLD BULLETIN | 2015年 / 48卷 / 3-4期
基金：
中国国家自然科学基金;
关键词：
Metal cluster; Doping; Synergistic effect; Aerobic oxidation catalysis; Oxidation; Differential pulse voltammetry; AU-25; CLUSTERS; CRYSTAL-STRUCTURE; NANOPARTICLES; REDUCTION; MAGNETISM;
D O I：
10.1007/s13404-015-0174-0
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Compared with the inert metal (gold), the active metal (Cd) is much more prone to oxidation, leading to its high oxidation state. In this work, we found that doping the homogold Au-25(SR)(18) nanocluster with cadmium largely enhances its stability. The differential pulse voltammetry (DPV) analysis suggested that Cd doping raised the high occupied molecular orbital (HOMO) energy of homogold Au-25 nanocluster, which led to stronger retention of its valence electrons. Cd1Au24(SR)(18) nanocluster also exhibited much higher activity than homogold Au-25 nanocluster in aerobic benzyl alcohol oxidation.
引用
收藏
页码：161 / 167
页数：7
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