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Noble Metal Collection through Air: Perovskite Oxide as a Novel Collector
Author(s) -
Daté Masakazu,
Nomura Katsuhiro,
Kageyama Hiroyuki,
Fujitani Tadahiro
Publication year - 2011
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201000618
Subject(s) - noble metal , perovskite (structure) , oxide , metal , noble gas , inorganic chemistry , catalysis , materials science , chemistry , metallurgy , crystallography , organic chemistry
A novel noncontact method is employed to collect noble metals from model waste materials (see picture). Perovskite oxides capture the noble metals (Ru, Pt, Pd, Rh, and Ir) as cations in the perovskite lattice when the oxides are heated with noble metal catalysts supported on alumina. The resulting perovskite oxides contain 0.3–6.1 wt % noble metals, and the oxides are soluble in acids, such as HCl, aqua regia, and HNO 3 .