Tunable Low Density Palladium Nanowire Foams

Dustin A. Gilbert, Edward C. Burks, Sergey V. Ushakov, Patricia Abellan, Ilke Arslan, Thomas E. Felter, Alexandra Navrotsky, Kai Liu

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Nanostructured palladium foams offer exciting potential for applications in diverse fields such as catalysts, fuel cells, and particularly hydrogen storage technologies. We have fabricated palladium nanowire foams using a cross-linking and freeze-drying technique. These foams have a tunable density down to 0.1% of the bulk, and a surface area-to-volume ratio of up to 1.54 × 106:1 m-1. They exhibit highly attractive characteristics for hydrogen storage, in terms of loading capacity, rate of absorption, and heat of absorption. The hydrogen absorption/desorption process is hysteretic in nature, accompanied by substantial lattice expansion/contraction as the foam converts between Pd and PdHx.

Original languageEnglish (US)
Pages (from-to)9814-9818
Number of pages5
JournalChemistry of Materials
Volume29
Issue number22
DOIs
StatePublished - Nov 28 2017
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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