Spectroscopy of Electrified Interfaces with Broadband Sum Frequency Generation: From Electrocatalysis to Protein Foams

Björn Braunschweig, Prabuddha Mukherjee, Robert B. Kutz, Armin Rumpel, Kathrin Engelhardt, Wolfgang Peukert, Dana D. Dlott, Andrzej Wieckowski

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

This chapter focuses on the application of vibrational sum frequency generation (SFG) spectroscopy to study the molecular structure of electrode-electrolyte and electrified liquid-gas interfaces. Vibrational SFG is inherently interface specific because a second-order process such as SFG is not allowed in the bulk of materials with inversion symmetry. The development of direct ethanol fuel cells demands an in-depth understanding of ethanol's electrooxidation reactions. With recent advances in the practical design of alkaline fuel cells, a thorough understanding of the ethanol electrooxidation mechanism in alkaline media is now more important than ever. The chapter provides novel insights into this mechanism by examining new data on surface-adsorbed reaction intermediates at fuel cell relevant conditions. Foams are materials of particular importance since they have a broad range of applications such as metal foams for light-weight structures, polymer foams for thermal insulation, as well as in textured food products.

Original languageEnglish (US)
Title of host publicationVibrational Spectroscopy at Electrified Interfaces
PublisherWiley
Pages120-150
Number of pages31
ISBN (Electronic)9781118658871
ISBN (Print)9781118157176
DOIs
StatePublished - Jul 29 2013

Keywords

  • Electrified interfaces
  • Electrocatalysis
  • Electrooxidation reactions
  • Ethanol fuel cells
  • Protein foams
  • Spectroscopy
  • Vibrational sum frequency generation (SFG)

ASJC Scopus subject areas

  • General Chemistry

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