Collaboration between scientists from Rice and Missouri universities resulted in development of a unique form of graphene where metallic nanoparticles are embedded which turn it an excellent catalyst for fuel cells. This metal oxide-laser induced graphene has the potential to replace more expensive catalytic metal such as platinum.
ACS Nano. 2015 Aug 18.
†Department of Chemistry, ⊥Department of Computational and Applied Mathematics,‡Smalley Institute for Nanoscale Science and Technology, and §Department of Materials Science and NanoEngineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
∥ Department of Mechanical & Aerospace Engineering, University of Missouri, Columbia, Missouri 65211, United States.
Hybrid materials incorporating the advantages of graphene and nanoparticles have been widely studied. Here we develop an improved cost-effective approach for preparation of porous graphene embedded with various types of nanoparticles. Direct laser scribing on metal-complex-containing polyimide film leads to in situ formation of nanoparticles embedded in porous graphene. These materials are highly active in electrochemical oxygen reduction reactions, converting O2 into OH–, with a low metal loading of less than 1 at. %. In addition, the nanoparticles can vary from metal oxide to metal dichalcogenides through lateral doping, making the composite active in other electrocatalytic reactions such as hydrogen evolution.
Metal Oxide Nanocrystals Embedded in Laser-Induced Graphene research featured on Renewable Energy Global Innovations Innovations the World’s leading source on renewable energy research news