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Protection of Platinum‐Based Micromotors from Thiol Toxicity by Using Manganese Oxide
Author(s) -
Minh Tam Do,
Safdar Muhammad,
Jänis Janne
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201700788
Subject(s) - thiol , platinum , catalysis , limiting , nanotechnology , manganese , platinum nanoparticles , chemistry , manganese oxide , materials science , organic chemistry , engineering , mechanical engineering
Platinum‐based micromotors have shown many exciting applications when functionalized using gold–thiol chemistry. However, thiols are known to bind to the Pt surface, which can lead to serious deactivation of the catalyst. In this paper, it is demonstrated that MnO 2 can be used to protect Pt‐based micromotors prior to the thiol treatment, thus fully avoiding the catalyst poisoning. This approach will greatly facilitate the use of the functionalized Pt micromotors for which the thiol toxicity has been a limiting factor.