Atomic Structure Evolution of Pt–Co Binary Catalysts: Single Metal Sites versus Intermetallic Nanocrystals

[1 ]Henan Key Laboratory of Diamond Optoelectronic Materials and Devices Key Laboratory of Material Physics Ministry of Education School of Physics and Microelectronics Zhengzhou University Zhengzhou 450052 China

[2 ]Center for Functional Nanomaterials Brookhaven National Laboratory Upton NY 11973 USA

[3 ]Condensed Matter Physics and Materials Science Brookhaven National Laboratory Upton NY 11973 USA

[4 ]Department of Chemical and Biological Engineering University at Buffalo The State University of New York Buffalo NY 14260 USA

[5 ]Department of Mechanical Engineering and Materials Science University of Pittsburgh Pittsburgh PA 15261 USA

[6 ]Chemistry Division Brookhaven National Laboratory Upton NY 11973 USA

[7 ]National Synchrotron Light Source II Brookhaven National Laboratory Upton NY 11973 USA

[8 ]Department of Mechanical Engineering Purdue School of Engineering and Technology Indiana University‐Purdue University Indianapolis IN 46202 USA

[9 ]Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China