Increasing Stability and Activity of Core–Shell Catalysts by Preferential Segregation of Oxide on Edges and Vertexes: Oxygen Reduction on Ti–Au@Pt/C

• Published in: Journal of the American Chemical Society Vol. 138; no. 29; pp. 9294 - 9300
• Main Authors: Hu, Jue, Wu, Lijun, Kuttiyiel, Kurian A, Goodman, Kenneth R, Zhang, Chengxu, Zhu, Yimei, Vukmirovic, Miomir B, White, Michael G, Sasaki, Kotaro, Adzic, Radoslav R
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 27.07.2016; American Chemical Society (ACS)
• Subjects: catalysts; durability; gold; INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; nanogold; nanoparticles; oxygen; titanium

We describe a new class of core–shell nanoparticle catalysts having edges and vertexes covered by refractory metal oxide that preferentially segregates onto these catalyst sites. The monolayer shell is deposited on the oxide-free core atoms. The oxide on edges and vertexes induces high catalyst stab...