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Issue 9, 2016
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From trash to resource: recovered-Pd from spent three-way catalysts as a precursor of an effective photo-catalyst for H2 production

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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.

Graphical abstract: From trash to resource: recovered-Pd from spent three-way catalysts as a precursor of an effective photo-catalyst for H2 production

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Article information


Submitted
04 Dec 2015
Accepted
06 Jan 2016
First published
06 Jan 2016

This article is Open Access

Green Chem., 2016,18, 2745-2752
Article type
Paper

From trash to resource: recovered-Pd from spent three-way catalysts as a precursor of an effective photo-catalyst for H2 production

V. Gombac, T. Montini, A. Falqui, D. Loche, M. Prato, A. Genovese, M. L. Mercuri, A. Serpe, P. Fornasiero and P. Deplano, Green Chem., 2016, 18, 2745
DOI: 10.1039/C5GC02908B

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