In Situ Formation of Metal Oxide Nanocrystals Embedded in Laser-Induced Graphene

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...

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Bibliographic Details
Published in:ACS nano 2015-09, Vol.9 (9), p.9244-9251
Main Authors: Ye, Ruquan, Peng, Zhiwei, Wang, Tuo, Xu, Yunong, Zhang, Jibo, Li, Yilun, Nilewski, Lizanne G, Lin, Jian, Tour, James M
Format: Article
Language:English
Subjects:
Formations
Graphene
Hydrogen evolution
Lead (metal)
Metal oxides
Nanoparticles
Particulate composites
Reduction
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Summary: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.
ISSN:1936-0851
1936-086X
DOI:10.1021/acsnano.5b04138