Superhydrophobic and superaerophilic hierarchical Pt@MIL-101/PVDF composite for hydrogen water isotope exchange reactions

J Hazard Mater. 2019 Dec 15;380:120904. doi: 10.1016/j.jhazmat.2019.120904. Epub 2019 Jul 16.

Abstract

A hierarchical porous composite of Pt@MIL-101/ployvinylidene fluoride (Pt@MIL-101/PVDF) was successfully prepared through a solution-processed method. This composite possesses advanced superhydrophobic and superaerophilic performance which makes it a promising catalyst facilitating liquid phase catalytic exchange techniques (LPCE) in hydrogen-water isotope exchange process. Its superhydrophobic property results in the repellence of water drops from flooding the catalytic surface with a relatively large contact angle in the exchange reaction, and its superaerophilic surface broke hydrogen bubbles into thin film so as to reach higher catalytic reactive efficiency. High reactivity and long-term stability in the reaction process can also be achieved by the configuration of mesoporous cages of MIL-101 confining Pt nanoparticles and preventing them from sintering.

Keywords: Hydrogen isotopes; Hydrogen-water catalytic exchange; Pt@MIL-101/PVDF composite; Superaerophilic; Superhydrophobic.

Publication types

  • Research Support, Non-U.S. Gov't