Synthesis of catalytic porous metallic nanorods by galvanic exchange reaction

Melinda Mohl, Ashavani Kumar, Arava Leela Mohana Reddy, Á. Kukovecz, Z. Kónya, I. Kiricsi, Robert Vajtai, Pulickel M. Ajayan

Research output: Contribution to journalArticle

66 Citations (Scopus)

Abstract

We demonstrate a simple method for the synthesis of nanoporous metal (Au, Pt, and Pd) rods by the galvanic exchange reaction using Ni as a sacrificial template. Nickel nanorods, prepared by electrodeposition inside porous alumina membrane, were converted to various nanoporous metallic structures by dispersing them in metal salt solutions of the respective metals that are galvanically exchanged. The catalytic activity of the porous Pt and Pd nanorods in the hydrogenation of ethylene was comparable to supported Pt and Pd nanoparticles. The porous nanorods provide a new form of unsupported catalysts in contrast to traditional supported nanoparticle catalysts and can be synthesized in uniform sizes and separated easily from the reaction mixtures without aggregation.

Original languageEnglish
Pages (from-to)389-393
Number of pages5
JournalJournal of Physical Chemistry C
Volume114
Issue number1
DOIs
Publication statusPublished - Jan 14 2010

Fingerprint

Nanorods
nanorods
Ion exchange
Metals
synthesis
metals
Nanoparticles
catalysts
nanoparticles
Catalysts
Aluminum Oxide
dispersing
Nickel
Electrodeposition
electrodeposition
Hydrogenation
hydrogenation
catalytic activity
Catalyst activity
Ethylene

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Energy(all)

Cite this

Synthesis of catalytic porous metallic nanorods by galvanic exchange reaction. / Mohl, Melinda; Kumar, Ashavani; Mohana Reddy, Arava Leela; Kukovecz, Á.; Kónya, Z.; Kiricsi, I.; Vajtai, Robert; Ajayan, Pulickel M.

In: Journal of Physical Chemistry C, Vol. 114, No. 1, 14.01.2010, p. 389-393.

Research output: Contribution to journalArticle

Mohl, Melinda ; Kumar, Ashavani ; Mohana Reddy, Arava Leela ; Kukovecz, Á. ; Kónya, Z. ; Kiricsi, I. ; Vajtai, Robert ; Ajayan, Pulickel M. / Synthesis of catalytic porous metallic nanorods by galvanic exchange reaction. In: Journal of Physical Chemistry C. 2010 ; Vol. 114, No. 1. pp. 389-393.
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