title: Shaping surface of palladium nanospheres through the control of reaction parameters.
abstract: Solid, cracked, and flower-shaped surfaces of palladium nanospheres with high yields and good uniformity were successfully prepared by a wet chemical method. On the basis of the experimental data, the same size of palladium nanosphere with different surface morphologies can be regulated only by changing the amount of ammonium hydroxide and reductant in one experimental system. The as-prepared products were studied by transmission electron microscopy (TEM), scanning electron microscopy (SEM) and x-ray diffraction (XRD). In addition, surface-enhanced Raman scattering (SERS) spectra on the as-prepared different surface of palladium nanospheres exhibit high activity towards p-aminothiophenol (PATP) detection, and the result further reveals that the predominance of the a1 vibration mode in the SERS spectra via an electromagnetic (EM) mechanism is significant.
authors: School of Chemistry and Environment, Beijing University of Aeronautics and Astronautics, Beijing, People's Republic of China.
authors: Lianmeng
authors: L
authors: Wang
authors: Lihua
authors: L
authors: Wang
authors: Enzhong
authors: E
authors: Tan
authors: Lin
authors: L
authors: Guo
authors: Xiaodong
authors: X
authors: Han