Abstract
The location of nanosized (2-4 nm) palladium particles in two palladium-polyaniline-based composites, synthesized by the redox coupling route using monomer and palladium(ll) acetate, have been revealed using ethene hydrogenation as a heterogeneously catalysed reaction, together with differential scanning calorimetry. The two palladium composites were synthesized using m-aminobenzoic acid (ABA) or o-phenylenediamine (PDA), leading to Pd-PABA or Pd-PPDA, respectively. The temperature sensitivity of catalytic activity related to the polymer melting temperature, as revealed by DSC, assists in understanding the location of the palladium particles. The structures of the metal-polymer composite at the micrometre and nanometre levels are revealed using scanning and transmission electron microscopy, respectively.
Original language | English |
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Pages (from-to) | 496-498 |
Number of pages | 3 |
Journal | South African Journal of Science |
Volume | 104 |
Issue number | 11-12 |
Publication status | Published - 2008 |
Externally published | Yes |
ASJC Scopus subject areas
- General Biochemistry,Genetics and Molecular Biology
- General Agricultural and Biological Sciences
- General Earth and Planetary Sciences