Pt-Free microengines at extremely low peroxide levels
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 sho...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
The Royal Society of Chemistry
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/67043 |
| _version_ | 1848761459793723392 |
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| author | Ye, Heng Ma, G. Kang, Jian Sun, Hongqi Wang, Shaobin |
| author_facet | Ye, Heng Ma, G. Kang, Jian Sun, Hongqi Wang, Shaobin |
| author_sort | Ye, Heng |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T10:32:01Z |
| format | Journal Article |
| id | curtin-20.500.11937-67043 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:32:01Z |
| publishDate | 2018 |
| publisher | The Royal Society of Chemistry |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-670432018-10-10T06:53:54Z Pt-Free microengines at extremely low peroxide levels Ye, Heng Ma, G. Kang, Jian Sun, Hongqi Wang, Shaobin 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. 2018 Journal Article http://hdl.handle.net/20.500.11937/67043 10.1039/c8cc01548a http://creativecommons.org/licenses/by/3.0/ The Royal Society of Chemistry fulltext |
| spellingShingle | Ye, Heng Ma, G. Kang, Jian Sun, Hongqi Wang, Shaobin Pt-Free microengines at extremely low peroxide levels |
| title | Pt-Free microengines at extremely low peroxide levels |
| title_full | Pt-Free microengines at extremely low peroxide levels |
| title_fullStr | Pt-Free microengines at extremely low peroxide levels |
| title_full_unstemmed | Pt-Free microengines at extremely low peroxide levels |
| title_short | Pt-Free microengines at extremely low peroxide levels |
| title_sort | pt-free microengines at extremely low peroxide levels |
| url | http://hdl.handle.net/20.500.11937/67043 |