Y. Verde-Gómez, G. Alonso-Núñez, F. Cervantes
Dec 1, 2003
Citations
0
Influential Citations
14
Citations
Journal
Materials Letters
Abstract
Abstract Ammonium hexachloroplatinate (Pt(NH4)2Cl6) has been proven to be a good precursor to obtain metallic Pt by thermal decomposition, in addition to being a stable compound easily obtained from a variety of Pt recuperation processes. This work was aimed to develop a simple way to synthesize Pt(NH4)2Cl6. The crystallographic characterization by powder and single crystal XRD is reported, along with a simulation of the XRD patterns performed with the software Cerius2. A thermogravimetric analysis (TGA) allowed insight into the thermal decomposition process, which has been confirmed to take place in two steps, between 175 and 400 °C. This low decomposition temperature makes Pt(NH4)2Cl6 an ideal catalyst precursor to obtain Pt/C for polymer electrolyte membrane fuel cell (PEMFC) electrode fabrication.