TY - JOUR
T1 - High resolution TEM studies on palladium nanoparticles
AU - José-Yacamán, M.
AU - Marín-Almazo, M.
AU - Ascencio, J. A.
N1 - Funding Information:
The authors are indebted to Mr. Samuel Tehuacanero and Maura Mendoza for image processing. To Mr. Luis Rendon for obtaining the high-resolution TEM images. This work was supported by CONACYT though the grant “Coloides Cuánticos y Nanopartı́culas”.
PY - 2001/9/10
Y1 - 2001/9/10
N2 - In the present work, we discuss the analysis of Pd nanoparticles in the range of 1-5 nm using high resolution electron microscopy (HREM). Particles were grown using colloidal methods. The principles of the observation of HREM images and their study using the corresponding FFT of the images are discussed. The results show that particles have the following shapes: FCC cubo-octahedrons, icosahedrons, truncated decahedrons and single-twinned FCC configuration. Each one of those structures is discussed and images are shown. We also found that a fraction of the particles corresponds to a short range ordered amorphous phase. The future of HREM observations of nanoparticles is also discussed.
AB - In the present work, we discuss the analysis of Pd nanoparticles in the range of 1-5 nm using high resolution electron microscopy (HREM). Particles were grown using colloidal methods. The principles of the observation of HREM images and their study using the corresponding FFT of the images are discussed. The results show that particles have the following shapes: FCC cubo-octahedrons, icosahedrons, truncated decahedrons and single-twinned FCC configuration. Each one of those structures is discussed and images are shown. We also found that a fraction of the particles corresponds to a short range ordered amorphous phase. The future of HREM observations of nanoparticles is also discussed.
KW - Crystalline structure of palladium nanoparticles
KW - Electron microscopy of nanoparticles
KW - Nanomorphology
KW - Palladium nanoparticles
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U2 - 10.1016/S1381-1169(01)00145-5
DO - 10.1016/S1381-1169(01)00145-5
M3 - Article
AN - SCOPUS:0035840147
SN - 1381-1169
VL - 173
SP - 61
EP - 74
JO - Journal of Molecular Catalysis A: Chemical
JF - Journal of Molecular Catalysis A: Chemical
IS - 1-2
ER -