CO2-free energy circulation system—Polymer electrolyte alcohol electro-synthesis cell with a low iridium content anode based on in situ growth method

Junfang Cheng, Manabu Higashi, Nobutaka Maeda, Junko Matsuda, Miho Yamauchi, Naotoshi Nakashima

Research output: Contribution to journalArticlepeer-review

Abstract

Alcohol is considered as a potential CO2-free energy carrier to replace hydrogen because of its high energy density, appropriate chemical stability and low-cost production. In this study, we describe the development of a simple in situ growth method to prepare a binder free IrOx-Ti anode with a very low IrOx loading amount (< 0.25 mg cm−2), and the obtained catalyst shows a high oxygen evolution reaction (OER) activity and durability in acidic media. The performance of a polymer electrolyte alcohol electrosynthesis cell (PEAEC) using this anode catalyst shows a better performance than that of PEAEC using a typical commercial IrO2-Ti paper anode with the loading of IrO2 = 3 mg cm−2. Furthermore, the key factors that affect the performance of the PEAEC are determined by comparing the performances of the PEAEC with different anode catalysts.

Original languageEnglish
Article number137078
JournalElectrochimica Acta
Volume361
DOIs
Publication statusPublished - 2020 Nov 20

Keywords

  • Binder free IrO-Ti anode
  • Co-free energy system
  • Oxygen evolution reaction (OER)
  • Polymer electrolyte alcohol electrosynthesis cell (PEAEC)

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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