title: High-quality graphene via microwave reduction of solution-exfoliated graphene oxide.
abstract: Efficient exfoliation of graphite in solutions to obtain high-quality graphene flakes is desirable for printable electronics, catalysis, energy storage, and composites. Graphite oxide with large lateral dimensions has an exfoliation yield of ~100%, but it has not been possible to completely remove the oxygen functional groups so that the reduced form of graphene oxide (GO; reduced form: rGO) remains a highly disordered material. Here we report a simple, rapid method to reduce GO into pristine graphene using 1- to 2-second pulses of microwaves. The desirable structural properties are translated into mobility values of >1000 square centimeters per volt per second in field-effect transistors with microwave-reduced GO (MW-rGO) as the channel material and into particularly high activity for MW-rGO catalyst support toward oxygen evolution reactions.
authors.affiliation: Materials Science and Engineering, Rutgers University, 607 Taylor Road, Piscataway, NJ 08854, USA.
authors.forename: Damien
authors.initials: D
authors.lastname: Voiry
authors.affiliation: Materials Science and Engineering, Rutgers University, 607 Taylor Road, Piscataway, NJ 08854, USA.
authors.forename: Jieun
authors.initials: J
authors.lastname: Yang
authors.affiliation: Materials Science and Engineering, Rutgers University, 607 Taylor Road, Piscataway, NJ 08854, USA.
authors.forename: Jacob
authors.initials: J
authors.lastname: Kupferberg
authors.affiliation: Materials Science and Engineering, Rutgers University, 607 Taylor Road, Piscataway, NJ 08854, USA.
authors.forename: Raymond
authors.initials: R
authors.lastname: Fullon
authors.affiliation: Materials Science and Engineering, Rutgers University, 607 Taylor Road, Piscataway, NJ 08854, USA.
authors.forename: Calvin
authors.initials: C
authors.lastname: Lee
authors.affiliation: Central Research Facilities and School of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798, Republic of Korea.
authors.forename: Hu Young
authors.initials: HY
authors.lastname: Jeong
authors.affiliation: Department of Chemistry and Department of Energy Engineering, Low Dimensional Carbon Materials, UNIST, Ulsan 689-798, Republic of Korea.
authors.forename: Hyeon Suk
authors.initials: HS
authors.lastname: Shin
authors.affiliation: Materials Science and Engineering, Rutgers University, 607 Taylor Road, Piscataway, NJ 08854, USA. manish1@rci.rutgers.edu.
authors.forename: Manish
authors.initials: M
authors.lastname: Chhowalla