TY - JOUR
T1 - Stability and hydrogenation of "bare" gadolinium nanoparticles
AU - Aruna, I.
AU - Mehta, B. R.
AU - Malhotra, L. K.
AU - Shivaprasad, S. M.
PY - 2005/1/13
Y1 - 2005/1/13
N2 - Gadolinium nanoparticles, deposited via an inert gas evaporation method, show improved stability towards oxidation and it is therefore possible to carry out an ex-situ investigation on "bare" Gd nanoparticles, i.e., in the absence of a protective Pd layer, for the first time. A size-induced structural transformation from hexagonal close packing to the higher-symmetry face-centered cubic structure is observed. The important observation of hydrogen-Gd-nanoparticle interaction at room temperature and atmospheric pressure, without a Pd catalytic layer, makes Gd nanoparticles a potential candidate for hydrogen-sensing, switching, and storage applications.
AB - Gadolinium nanoparticles, deposited via an inert gas evaporation method, show improved stability towards oxidation and it is therefore possible to carry out an ex-situ investigation on "bare" Gd nanoparticles, i.e., in the absence of a protective Pd layer, for the first time. A size-induced structural transformation from hexagonal close packing to the higher-symmetry face-centered cubic structure is observed. The important observation of hydrogen-Gd-nanoparticle interaction at room temperature and atmospheric pressure, without a Pd catalytic layer, makes Gd nanoparticles a potential candidate for hydrogen-sensing, switching, and storage applications.
KW - core shell particles
KW - gadolinium
KW - nanoparticles
KW - metal
UR - http://www.scopus.com/inward/record.url?scp=13244262738&partnerID=8YFLogxK
U2 - 10.1002/adfm.200400097
DO - 10.1002/adfm.200400097
M3 - Article
AN - SCOPUS:13244262738
SN - 1616-301X
VL - 15
SP - 131
EP - 137
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 1
ER -