PMID- 22286721
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20120523
LR  - 20120207
IS  - 1463-9084 (Electronic)
IS  - 1463-9076 (Linking)
VI  - 14
IP  - 9
DP  - 2012 Mar 7
TI  - Efficient reduction of graphene oxide catalyzed by copper.
PG  - 3083-8
LID - 10.1039/c2cp23187e [doi]
AB  - We report that copper thin films deposited on top of graphene oxide (GO) serve as 
      an effective catalyst to reduce GO sheets in a diluted hydrogen environment at 
      high temperature. The reduced GO (rGO) sheets exhibit higher effective 
      field-effect hole mobility, up to 80 cm(2) V(-1) s(-1), and lower sheet 
      resistance (13 kOmega  square(-1)) compared with those reduced by reported methods such as 
      hydrazine and thermal annealing. Raman and XPS characterizations are addressed to 
      study the reduction mechanism on graphene oxide underneath copper thin films. The 
      level of reduction in rGO sheets is examined by Raman spectroscopy and it is well 
      correlated with hole mobility values. The conductivity enhancement is attributed 
      to the growth of the graphitic domain size. This method is not only suitable for 
      reduction of single GO sheets but also applicable to lower the sheet resistance 
      of Langmuir-Blodgett assembled GO films.
FAU - Lin, Yu-Chuan
AU  - Lin YC
AD  - Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan.
FAU - Liu, Keng-Ku
AU  - Liu KK
FAU - Wu, Chih-Yu
AU  - Wu CY
FAU - Chu, Chih-Wei
AU  - Chu CW
FAU - Wang, Jacob Tse-Wei
AU  - Wang JT
FAU - Liang, Chi-Te
AU  - Liang CT
FAU - Li, Lain-Jong
AU  - Li LJ
LA  - eng
PT  - Journal Article
DEP - 20120130
PL  - England
TA  - Phys Chem Chem Phys
JT  - Physical chemistry chemical physics : PCCP
JID - 100888160
EDAT- 2012/01/31 06:00
MHDA- 2012/01/31 06:01
CRDT- 2012/01/31 06:00
PHST- 2012/01/31 06:00 [entrez]
PHST- 2012/01/31 06:00 [pubmed]
PHST- 2012/01/31 06:01 [medline]
AID - 10.1039/c2cp23187e [doi]
PST - ppublish
SO  - Phys Chem Chem Phys. 2012 Mar 7;14(9):3083-8. doi: 10.1039/c2cp23187e. Epub 2012 
      Jan 30.