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- Title
XAFS investigation of [Pd(NH)][AuCl] and its thermolysis products.
- Authors
Nedoseykina, Tatiana; Plyusnin, Pavel; Shubin, Yuri; Korenev, Sergey
- Abstract
Thermolysis of double complex salt [Pd(NH)][AuCl] has been studied in helium atmosphere from ambient to 350 °C. The XAFS of Pd K and Au L edges and thermogravimetry measurements have been carried out to characterize the intermediates and the final product. In the temperature range 115-160 °C the complex is decomposed to form Pd(NH)Cl and AuClN species with x ranging from 2 to 3. Subsequent heating of the intermediate up to 300 °C leads to the total loss of NH. The Au-Cl and Au-Au bonds form the local environment of Au at the stage of decomposition while only four chlorine atoms are around Pd. At the temperature of 330 °C the Au and Pd nanoparticles as well as residues of palladium chloride are detected. The final product consists of separated Au and Pd nanoparticles.
- Subjects
THERMAL analysis; CALORIMETRY; HELIUM; THERMOGRAVIMETRY; QUANTITATIVE research
- Publication
Journal of Thermal Analysis & Calorimetry, 2010, Vol 102, Issue 2, p703
- ISSN
1388-6150
- Publication type
Article
- DOI
10.1007/s10973-010-0723-y