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. 2019 Jan 22;116(6):1974–1983. doi: 10.1073/pnas.1815643116

Fig. 6.

Fig. 6.

Atomic-scale ex situ HAADF-STEM images of Pt3Co/C after annealing. (A) An ordered intermetallic Pt3Co particle on the [100] zone axis. Brighter atoms at corners of squares are Pt, and dimmer atoms at the center are Co. (B) A partially ordered intermetallic particle on the [100] zone axis. Both brighter and dimmer atoms exist at the center of the squares. (C) Corresponding projected crystal model along [100]. Red and green atoms are Pt and Co, respectively. Crystal models were built based on the ordered intermetallic Pt3Co (PDF #01-071-7410).