Highly Selective and Efficient Electrocatalytic Semihydrogenation of Diphenylacetylene in a PEM Reactor with Pt-Pd Alloy Cathode Catalysts

Shuji Nogami, Kensaku Nagasawa, Atsushi Fukazawa, Kenta Tanaka, Shigenori Mitsushima, Mahito Atobe

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Electric power can be generated from renewable energy sources such as solar and wind, making electrocatalytic hydrogenation an important technology to reduce carbon dioxide emissions in the organic synthesis industry. In the present work, the electrocatalytic semihydrogenation of diphenylacetylene was carried out in a proton exchange membrane (PEM) reactor with carbon-supported Pt, Pd, and Pt-Pd alloy cathode catalysts. Diphenylacetylene introduced into the PEM reactor at less negative potentials underwent electrocatalytic hydrogenation to provide cis-stilbene as a main stereoisomer, with excellent current efficiencies. Among the investigated catalysts, the Pt-Pd alloy with a composition of 1(Pt):99(Pd) was found to be the most suitable for achieving both high cis-stilbene selectivity and a high production rate (partial current density) for cis-stilbene.

Original languageEnglish
Article number155506
JournalJournal of the Electrochemical Society
Volume167
Issue number15
DOIs
Publication statusPublished - Jan 12 2020
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

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