Oxygen reduction reaction on nanostructured Pt-based electrocatalysts: A review

Sajid Hussain, Heiki Erikson, Nadezda Kongi, Ave Sarapuu, Jose Solla-Gullón, Gilberto Maia, Arunachala M. Kannan, Nicolas Alonso-Vante, Kaido Tammeveski

Research output: Contribution to journalReview articlepeer-review

Abstract

Pt deposition/anchoring technique and nature of the support influence the oxygen reduction reaction (ORR) activity in low-temperature proton exchange membrane fuel cells. Surface distribution, morphology (particle shape and size) of the deposited Pt nanoparticles (NPs) and physicochemical properties contribute to the electrocatalytic activity and durability of the catalyst. Investigations over the past two decades lead to various metal and metal oxide-based supports, along with advanced nanocarbon materials as suitable candidates since they play a vital role in defining surface morphology, particle-size distribution, crystallinity and electronic structure of the deposited Pt catalyst. Moreover, such supports improve the ORR activity and stability of the electrocatalyst due to their stronger interaction with the deposited Pt NPs. Briefly, a well-controlled and selective deposition of Pt NPs and designing of an excellent corrosion-resistant support for a promising ORR catalyst has gained more attention. Many advanced strategies are developed for the fabrication of atomically precise nanostructured Pt catalysts. This review summarises recent developments in the electrochemical, photochemical and physical deposition techniques for Pt NPs on various supports and their effects on the physicochemical properties and electrocatalytic activity towards the ORR.

Original languageEnglish (US)
Pages (from-to)31775-31797
Number of pages23
JournalInternational Journal of Hydrogen Energy
Volume45
Issue number56
DOIs
StatePublished - Nov 13 2020

Keywords

  • Catalyst supports
  • Electrocatalysis
  • Oxygen reduction reaction
  • Proton exchange membrane fuel cells
  • Pt-based catalysts

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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