TY - JOUR
T1 - Pt-Free microengines at extremely low peroxide levels
AU - Ye, Heng
AU - Ma, Guofeng
AU - Kang, Jian
AU - Sun, Hongqi
AU - Wang, Shaobin
N1 - Funding Information:
The authors acknowledge the facilities and the scientific and technical assistance of the Australian Microscopy & Microanalysis Research Facility at the Centre for Microscopy, Characterization & Analysis, the University of Western Australia, a facility funded by the University, State and Commonwealth Government. The authors acknowledge the use of equipment, scientific and technical assistance of the WA X-ray Surface Analysis Facility, funded by the Australian Research Council LIFE Grant LE120100026.
Funding Information:
The authors acknowledge the use of equipment, scientific and technical assistance of the WA X-ray Surface Analysis Facility, funded by the Australian Research Council LIFE Grant LE120100026.
Publisher Copyright:
© 2018 The Royal Society of Chemistry.
PY - 2018/5/7
Y1 - 2018/5/7
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85046549202&partnerID=8YFLogxK
U2 - 10.1039/c8cc01548a
DO - 10.1039/c8cc01548a
M3 - Article
C2 - 29623976
AN - SCOPUS:85046549202
SN - 1359-7345
VL - 54
SP - 4653
EP - 4656
JO - Chemical Communications
JF - Chemical Communications
IS - 37
ER -