Figure 2

(A) TEM image and (B) SEM image of Au NRs. (C) TEM image of Au@Pd NRs, local zoom (inset). (D) HRTEM image of Au@Pd NRs, the FFT pattern (inset).

(A) TEM image and (B) SEM image of Au NRs. (C) TEM image of Au@Pd NRs, local zoom (inset). (D) HRTEM image of Au@Pd NRs, the FFT pattern (inset).