Sintering occurs commonly at high temperatures for nanoparticles, and it inevitably causes many undesired effects. How to inhibit sintering has become an important scientific challenge in various fields including energy storage, energy conversion, industrial catalysis, ceramics, etc. In this paper, molecular dynamics (MD) is employed to predict whether a series of high thermal conductivity materials including hexagonal boron nitride (h-BN), graphene and boron arsenide (BAs) could retard sintering. Platinum/alumina model system was constructed, and h-BN is thought of as the most suitable choose to make a further experimental verification and demonstration. After introducing h-BN, a resistant crystal migration behavior of platinum nanoparticles on γ-Al<sub>2</sub>O<sub>3</sub>-h-BN and a more uniform temperature field distribution were clearly observed by in-situ transmission electron microscope and infrared thermal imaging camera respectively. On this basis, a facile hierarchical anti-sintering strategy is proposed by temperature field regulation, providing a new insight for the design of anti-sintering materials for a wide range of applications.

Achieving anti-sintering of platinum nanoparticles by efficient temperature field regulation

Macromolecular Chemistry: The Second Century

[Author Benefits](https://scimeetings.acs.org/?utm_source=pubs_content_marketing&utm_medium=website&utm_campaign=0320_MCF_NPI_Launch_Spring_Homepage&ref=pubs_content_marketing)

[How to use SciMeetings](https://storage.googleapis.com/dl.morressier.com/acs/SciMeetings-ACSSpring2020-HowToGuide_M3020-Final.pdf)

[Frequently Asked Questions](https://storage.googleapis.com/dl.morressier.com/acs/SciMtng_ACSNMSp2020_FAQ_M3120_Final.pdf)

ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.