Oxygen generation using catalytic nano/micromotors

Sumayyah Naeem, Farah Naeem, Jawayria Mujtaba, Ashish Kumar Shukla, Shirsendu Mitra, Gaoshan Huang, Larisa Gulina, Polina Rudakovskaya, Jizhai Cui, Valeri Tolstoy, Dmitry Gorin, Yongfeng Mei, Alexander A. Solovev, Krishna Kanti Dey

Research output: Contribution to journalReview articlepeer-review

1 Citation (Scopus)

Abstract

Gaseous oxygen plays a vital role in driving the metabolism of living organisms and has multiple agricultural, medical, and technological applications. Different methods have been discovered to produce oxygen, including plants, oxygen concentrators and catalytic reactions. However, many such approaches are relatively expensive, involve challenges, complexities in post-production processes or generate undesired reaction products. Catalytic oxygen generation using hydrogen peroxide is one of the simplest and cleanest methods to produce oxygen in the required quantities. Chemically powered micro/nanomotors, capable of self-propulsion in liquid media, offer convenient and economic platforms for on-the-fly generation of gaseous oxygen on demand. Micromotors have opened up opportunities for controlled oxygen generation and transport under complex conditions, critical medical diagnostics and therapy. Mobile oxygen micro-carriers help better understand the energy transduction efficiencies of micro/nanoscopic active matter by careful selection of catalytic materials, fuel compositions and concentrations, catalyst surface curvatures and catalytic particle size, which opens avenues for controllable oxygen release on the level of a single catalytic microreactor. This review discusses various micro/nanomotor systems capable of functioning as mobile oxygen generators while highlighting their features, efficiencies and application potentials in different fields.

Original languageEnglish
Article number1251
JournalMicromachines
Volume12
Issue number10
DOIs
Publication statusPublished - Oct 2021

Keywords

  • Active matter
  • Catalysis
  • Hydrogen peroxide
  • Micro-/nanomotor
  • Oxygen
  • Self-propulsion

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