Journal
ACS NANO
Volume 6, Issue 4, Pages 3027-3033Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn2047185
Keywords
graphene oxide; chemoselective reduction; green catalysis; photoreduction; memory devices
Categories
Funding
- 973 project [2009CB930600]
- NNSFC [60876010, 60706017, 20774043]
- Chinese Ministry of Education [208050]
- NSF of Jiangsu Province [07KJB150082, BK2008053, 08KJB510013, SJ209003]
- Research Fund for Postgraduate Innovation Project of Jiangsu Province [CX08B_083Z]
- NJUPT [NY210030]
- MOE [ARC 10/10, MOE2010-T2-1-060]
- NRF
- NTU in Singapore [M58120031]
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We report a green and efficient method for chemoselective deoxidization of graphene oxide via the ultraviolet irradiation catalyzed with 2,2,6,6-tetramethyl-4-piperidinol. While the sp(2)-hybridized oxygen functional groups are removed after the reduction, the epoxy and hydroxyl groups are retained in the chemoselectively reduced graphene oxide (CrGO). The obtained CrGO nanosheets exhibit the high solubility and excellent electronic stability, which allows for the fabrication of thin film devices through a solution processing. As a proof of concept, a CrGO-based write-once-read-many-times memory device with the desirable stability and long-time operation is fabricated.
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