Effects of substrate molecular structure on the catalytic activity of peptide-templated Pd nanomaterials

Dennis B. Pacardo, Eric Ardman, Marc Knecht

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Advancing catalytic processes toward sustainable conditions is necessary to maintain current production levels in light of dwindling natural resources. Nanomaterial-based catalysts have been suggested as a possible route to achieve this goal; however, the effects of particle structure on the reaction remain unclear. Furthermore, for each reaction, different substrates are likely to be used that vary the molecular size, functional group composition, and reactive moiety site that could significantly alter the reactivity of nanomaterial-based catalysts. In this contribution, we have studied the effects of the molecular substrate structure on the reactivity of peptide-templated Pd nanomaterials with selectable morphologies. In this regard, spherical, ribbon-like, and networked metallic nanomaterials were studied that demonstrated significant degrees of reactivity of olefin hydrogenation using the substrates that varied the molecular size and reactive group position. The results demonstrated that substrate isomerization, rather than molecular structure, plays a significant role in attenuating the reactivity of the materials. Furthermore, the Pd structures demonstrated the ability to drive multistep reactivity for the complete hydrogenation of substrates with multiple reactive groups. Such results advance the structure/function relationship of nanocatalysis that could be important in addressing future sustainability goals.

Original languageEnglish
Pages (from-to)2518-2527
Number of pages10
JournalJournal of Physical Chemistry C
Volume118
Issue number5
DOIs
StatePublished - Feb 6 2014

Fingerprint

Nanostructured materials
Molecular structure
Peptides
peptides
catalytic activity
Catalyst activity
molecular structure
reactivity
Substrates
Hydrogenation
hydrogenation
catalysts
Catalysts
Alkenes
Natural resources
Isomerization
Functional groups
isomerization
ribbons
alkenes

ASJC Scopus subject areas

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

Cite this

Effects of substrate molecular structure on the catalytic activity of peptide-templated Pd nanomaterials. / Pacardo, Dennis B.; Ardman, Eric; Knecht, Marc.

In: Journal of Physical Chemistry C, Vol. 118, No. 5, 06.02.2014, p. 2518-2527.

Research output: Contribution to journalArticle

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