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Supporting Information
Synthesis of Boron Doped Graphene for Oxygen Reduction
Reaction in Fuel Cells
Zhen-Huan Sheng, Hong-Li Gao, Wen-Jing Bao, Feng-Bin Wang*, Xing-Hua Xia*
State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, China
Materials
Fig. S1 TEM image of the pristine graphene prepared by thermal annealing of GO at 1200 o
C under Ar atmosphere for 4 h.
Electronic Supplementary Material (ESI) for Journal of Materials ChemistryThis journal is © The Royal Society of Chemistry 2011
10 20 30 40 50 60
30
60
90
120
150
180
Inte
nsity
/CPS
2θ/degree
graphene BG
C (002)(b)
Fig. S2 (a) High resolution TEM image of BG. (b) PXRD patterns of BG and pristine graphene.
0 200 400 600 800 1000
0
200k
400k
B1s
O1sCoun
ts/s
Binding energy/eV
C1s(a) BG
0 200 400 600 800 1000
0
100k
200k
300k
400k
500k (b)
Coun
ts/s
Binding energy/eV
graphene
279 282 285 288 291 294 2970
15k
30k
45k
60k
75k
90k
Cou
nt/s
Binding energy/eV
C1s(c)
Fig. S3 XPS spectra: survey scan of BG (a) and pristine graphene (b), high resolution C1s peak for BG after curve fitting (c).
Electronic Supplementary Material (ESI) for Journal of Materials ChemistryThis journal is © The Royal Society of Chemistry 2011
-1.2 -0.9 -0.6 -0.3 0.0-200-160-120-80-40
04080
E/V (vs. Ag/AgCl)
i/µA
N2
O2
Fig. S4 CV curves of ORR on BG/GCE in N2- (black) and O2
-saturated (red) 0.1 M KOH aqueous solution (scan rate: 100 mV/s).
Electronic Supplementary Material (ESI) for Journal of Materials ChemistryThis journal is © The Royal Society of Chemistry 2011
-1.2 -0.9 -0.6 -0.3 0.0-0.6
-0.4
-0.2
0.0
i/mA
E/V (vs. Ag/AgCl)
(a)
0.06 0.09 0.12 0.15 0.182
4
6
8 (b)
i-1/m
A-1
ω-1/2/(rad/s)-1/2
-0.4 V -0.5 V -0.6 V -0.7 V -0.8 V -0.9 V
Fig. S5 (a) Linear sweep voltammetric curves of ORR on graphene/GCE at different rotation
rate in an O2
-saturated 0.1 M KOH aqueous solution at a scan rate of 10 mV/s. The rotation
rate from top to bottom: 300, 600, 900, 1200, 1600, 2000, and 2500 rpm. (b) K-L plots for the
graphene/GCE at different electrode potentials.
Electronic Supplementary Material (ESI) for Journal of Materials ChemistryThis journal is © The Royal Society of Chemistry 2011