Preparation of nanometeric gold particles on NaHY
- Resource Type
- Original Paper
- Authors
- Guillemot, D.; Polisset-Thfoin, M.; Fraissard, J.
- Source
- Catalysis Letters. September 1996 41(3-4):143-148
- Subject
- gold particles
zeolite
TEM
- Language
- English
- ISSN
- 1011-372X
1572-879X
Two Au/NaHY systems examined by TEM were prepared using an autoreduction method of Au3+ by its ethylene diamine ligands. When about 10% of the cations are H+ the particle diameter distribution is found to be about 2 nm and homogeneous. If 75% of cations are H+ the gold particle distribution is centered around 3–4 nm. Gold particles are of good stability when exposed to H2 at 573 K for two days and the stability under O2 greater with the higher acidified zeolite.