TY - JOUR
T1 - Nucleation and growth of Ni0 nanoparticles and thin films by TEM electron irradiation
AU - Del Angel, P.
AU - Rodriguez-Hernandez, J. H.
AU - Garcia-Borquez, A.
AU - De La Fuente, J. A.Montoya
N1 - Funding Information:
JHRH thanks to CONACyT ( 236596 ) and PIFI for the grants received. AGB thanks to IPN for partial support of SIP-20091315 project, COFAA and EDI grants. We thank LAMEUAR facilities at the IMP. Authors also thank to Dr. J. Cervini-Silva for providing helpful comments.
PY - 2013/9/1
Y1 - 2013/9/1
N2 - This paper reports the generation in situ of Ni0 nanoparticles and thin films by focusing a TEM electron beam over NiO/ZrO2-CeO 2 and NiO. Electron irradiation was carried out using a TEM at 80 and 100 kV, concentrated over individual NiO/ZrO2-CeO2 and NiO agglomerates. The results showed that just after electron irradiation started, the reduction of NiO phase occurred and fine Ni0 nanoparticles were formed. These Ni nanoparticles were limited to a small area around the irradiated NiO/ZrO2-CeO2 and NiO agglomerates. It was found that the nanoparticles growth increased with irradiation time, and a Ni0 thin film was formed after 50 min. The evolution was studied using BF images and SAD patterns. Characterization of single nanoparticles was conducted using HRTEM, STEM and EDS.
AB - This paper reports the generation in situ of Ni0 nanoparticles and thin films by focusing a TEM electron beam over NiO/ZrO2-CeO 2 and NiO. Electron irradiation was carried out using a TEM at 80 and 100 kV, concentrated over individual NiO/ZrO2-CeO2 and NiO agglomerates. The results showed that just after electron irradiation started, the reduction of NiO phase occurred and fine Ni0 nanoparticles were formed. These Ni nanoparticles were limited to a small area around the irradiated NiO/ZrO2-CeO2 and NiO agglomerates. It was found that the nanoparticles growth increased with irradiation time, and a Ni0 thin film was formed after 50 min. The evolution was studied using BF images and SAD patterns. Characterization of single nanoparticles was conducted using HRTEM, STEM and EDS.
KW - Electron beam irradiation
KW - In situ nucleation and growth
KW - Ni nanoparticles
UR - http://www.scopus.com/inward/record.url?scp=84879989580&partnerID=8YFLogxK
U2 - 10.1016/j.cattod.2012.12.018
DO - 10.1016/j.cattod.2012.12.018
M3 - Artículo
AN - SCOPUS:84879989580
SN - 0920-5861
VL - 212
SP - 194
EP - 200
JO - Catalysis Today
JF - Catalysis Today
ER -