We report a facile one-pot synthesis of well-dispersed Pd nanoparticles on a carbon nanofiber (CNF) support, achieved via the unique sequential processes of supramolecular self-assembly and fast reduction of the Pd source. Pd ions attached to the sulfate ends of sodium dodecyl sulfate (SDS) molecules self-assembled on a CNF, and subsequent fast reduction suppressed particle coarsening, in contrast to the slow reduction processes in previous works. The particle size and dispersion uniformity were comparable to those of particles synthesized by combined SDS/high-energy irradiation. The Pd nanoparticles prepared using the present one-pot approach were superior or comparable to those obtained using non-one-pot approaches in previous works in terms of electrocatalytic activity and long-term stability in the electrooxidation of liquid fuels at the anodes of direct formic acid, direct methanol, and direct ethanol fuel cells.
Bibliographical noteFunding Information:
This work was supported by an institutional program grant ( 2E28210 ) from the Korea Institute of Science and Technology . The authors are grateful to M.K. Cho (Advanced Analysis Center, KIST) for comments on the TEM characterization.
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All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Condensed Matter Physics
- Energy Engineering and Power Technology