Synthesis and characterization of nickel-doped ceria nanoparticles with improved surface reducibility

被引：28
作者：
Derafa, Wassila [1 ,2 ]
Paloukis, Fotios [1 ]
Mewafy, Basma [1 ]
Baaziz, Walid [3 ]
Ersen, Ovidiu [3 ]
Petit, Corinne [1 ]
Corbel, Gwenael [4 ]
Zafeiratos, Spyridon [1 ]
机构：
[1] Univ Strasbourg, ICPEES, UMR 7515, ECPM,CNRS, 25 Rue Becquerel, F-67087 Strasbourg 02, France
[2] Jouf Univ, Chem Dept, Coll Sci, POB 2014, Sakaka, Saudi Arabia
[3] Univ Strasbourg, IPCMS, UMR 7504, CNRS, 23 Rue Loess, F-67037 Strasbourg 08, France
[4] Le Mans Univ, IMMM, UMR 6283, CNRS, Ave Olivier Messiaen, F-72085 Le Mans 9, France
来源：
RSC ADVANCES | 2018年 / 8卷 / 71期
基金：
欧盟地平线“2020”;
关键词：
CATALYTIC PERFORMANCE; CARBON-DIOXIDE; METAL; OXIDE; OXIDATION; CEO2; MONODISPERSE; REDUCTION; INTERFACE; CATHODE;
D O I：
10.1039/c8ra07995a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Nickel-doped ceria nanoparticles (Ni0.1Ce0.9O2-x NPs) were fabricated from Schiff-base complexes and characterized by various microscopic and spectroscopic methods. Clear evidence is provided for incorporation of nickel ions in the ceria lattice in the form of Ni3+ species which is considered as the hole trapped state of Ni2+. The Ni0.1Ce0.9O2-x NPs exhibit enhanced reducibility in H-2 as compared to conventional ceria-supported Ni particles, while in O-2 the dopant nickel cations are oxidized at higher valence than the supported ones.
引用
收藏
页码：40712 / 40719
页数：8
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