Dissolution kinetics of Pd and Pt from automobile catalysts by naturally occurring complexing agents

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F11%3A10106527" target="_blank" >RIV/00216208:11310/11:10106527 - isvavai.cz</a>
Alternative codes found
RIV/67985831:_____/11:00434418
Result on the web
<a href="http://dx.doi.org/10.1016/j.jhazmat.2011.10.051" target="_blank" >http://dx.doi.org/10.1016/j.jhazmat.2011.10.051</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jhazmat.2011.10.051" target="_blank" >10.1016/j.jhazmat.2011.10.051</a>

Result language
angličtina
Original language name
Dissolution kinetics of Pd and Pt from automobile catalysts by naturally occurring complexing agents
Original language description
Powder samples prepared from gasoline (Pt, Pd, Rh, new GN/old GO) and diesel (Pt, new DN/old DO) catalysts and recycled catalyst NIST 2556 were tested using kinetic leaching experiments following 1, 12, 24, 48, 168, 360, 720 and 1440-hour interactions with solutions of 20 mM citric acid (CA), 20 mM Na2P4O7 (NaPyr), 1 g L-1 NaCl (NaCl), a fulvic acid solution (FA- DOC 50 mg L-1) and 20 mM CA at pH 3, 4, 5, 6, 7, 8 and 9. The mobilisation of platinum group elements (PGEs) was fastest in solutions of CA and NaPyr. In the other interactions (NaCl, FA), the release of PGEs was probably followed by immobilisation processes, and the interactions were not found to correspond to the simple release of PGEs into solution. Because of their low concentrations, theindividual complexing agents did not have any effect on the speciation of Pd and Pt in the extracts; both metals are present in solution as the complexes Me(OH)2, Me(OH)+. Immobilisation can take place through the adsorption of the positi
Czech name
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Czech description
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Project
<a href="/en/project/GA205%2F09%2F0414" target="_blank" >GA205/09/0414: Experimental investigation of platinum group element (PGE) fluxes in the environment using laboratory and in situ weathering studies</a>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP) Z - Vyzkumny zamer (s odkazem do CEZ) S - Specificky vyzkum na vysokych skolach

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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