Pt-Free microengines at extremely low peroxide levels

Heng Ye, Guofeng Ma, Jian Kang, Hongqi Sun, Shaobin Wang

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)


Herein, we demonstrate that iron oxide modified MnO2 (FeOx-MnO2) catalyzed micromotors can be fabricated via electrochemical co-reduction and exhibit exceptional high performance at an extremely low hydrogen peroxide (H2O2) fuel concentration. We observed that graphene/FeOx-MnO2 microtubes could show motion behaviors at fuel concentration as low as 0.03% H2O2, which is nearly one order of magnitude lower than Pt-based micromotors (normally at above 0.2% H2O2). Moreover, the micromotors exhibit higher speeds than any other reported catalytic micro/nanomotors (MNMs) at low peroxide levels. The FeOx-MnO2 systems are better catalytic MNMs, due to their excellent catalytic activity, easy fabrication, robust structure and movement, as well as low-cost, biocompatible and abundance nature, showing great potential for future applications.

Original languageEnglish
Pages (from-to)4653-4656
Number of pages4
JournalChemical Communications
Issue number37
Publication statusPublished - 7 May 2018
Externally publishedYes


Dive into the research topics of 'Pt-Free microengines at extremely low peroxide levels'. Together they form a unique fingerprint.

Cite this