From trash to resource: recovered-Pd from spent three-way catalysts as a precursor of an effective photo-catalyst for H 2 production

V. Gombac, T. Montini, Andrea Falqui, D. Loche, M. Prato, Alessandro Genovese, M. L. Mercuri, A. Serpe, P. Fornasiero, P. Deplano

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

The successful production of a nanostructured and highly dispersed Pd-TiO2 photo-catalyst, using [Pd(Me2dazdt)2](I3)2 (Me2dazdt = N,N′-dimethyl-perhydrodiazepine-2,3-dithione) salt, obtained through the selective and safe recovery of palladium from model exhaust three-way catalysts (TWCs), is reported here. The photo-catalyst prepared by the impregnation/photo-reduction of palladium on the support showed improved performance in H2 production from methanol and in glycerol photo-reforming compared to reference photo-catalysts obtained from conventional Pd-salts. The reported results represent a case of successful palladium “recovery and re-employment” and thus constitute an example of green chemistry by providing, in one route, the environmentally friendly recovery of a critical metal and its employment in the renewable energy field.
Original languageEnglish (US)
Pages (from-to)2745-2752
Number of pages8
JournalGreen Chem.
Volume18
Issue number9
DOIs
StatePublished - 2016

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