3 years ago

Protection of Platinum-Based Micromotors from Thiol Toxicity by Using Manganese Oxide

Protection of Platinum-Based Micromotors from Thiol Toxicity by Using Manganese Oxide
Tam Do Minh, Muhammad Safdar, Janne Jänis
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 MnO2 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. Keep it moving: A proof-of-concept solution for the protection of Pt-based micromotors against thiol-induced deactivation, which limits their functionalization by gold–thiol chemistry for a variety of applications, is proposed. Thiols are known to bind to the Pt surface, which can lead to serious deactivation of the catalyst. The inner catalytic surface of the electrochemically fabricated Au/Pt micromotors can be covered with MnO2 to completely block the pores prior to thiol treatment, thus protecting the inner Pt surface from thiol chemisorption. This approach will greatly facilitate the use of the functionalized Pt micromotors for which the thiol toxicity has been a limiting factor.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/chem.201700788

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.