Ag–M (M: Ni, Co, Cu, Fe) bimetal catalysts prepared by galvanic deposition method for CO oxidation

• DOI: 10.1016/j.cattod.2015.11.043
• Publication Date: 2016-01-13T15:32:02Z
• Authors: Yuji Mahara; Hiroyuki Ishikawa; Junya Ohyama; Kyoichi Sawabe; Atsushi Satsuma
• Keywords: Bimetal; Galvanic cell; Deposition

Abstract Ag–M (M: Fe, Co, Ni, Cu) bimetal catalysts supported on SiO 2 were prepared by galvanic deposition (GD) method. HAADF-STEM observation and EDX elemental mapping showed that Ag was successfully introduced on Fe, Co, Ni, and Cu particles using the GD method. Ag–Fe, Ag–Co, and Ag–Cu catalysts showed Janus structure that is Ag nanoparticles (NPs) on the 3d metals. On the other hand, Ag–Ni catalyst showed core–shell like structure composed of small Ag NPs (