Electronic Supplementary Material
Highly sensitive hydrogen peroxide sensor based on a glassy carbon electrode modified
with platinum nanoparticles on the carbon nanofiber heterostructure
Yang Yang a, Renzhong Fu a,*, Jianyun Yuan a, Shiyuan Wu a, Jialiang Zhang a, Haiying Wang a,*
a
Jiangsu Laboratory of Advanced Functional Material, Department of Chemistry, Changshu
Institute of Technology, Changshu 215500, P.R. China
*Corresponding authors:
(R. F). Tel/Fax: +86-512-52251842. E-mail address: renzhongfujs@126.com;
(H. W). Tel/Fax: +86-512-52251842. E-mail address: HYWang@cslg.edu.cn
Weight loss (%)
0
-20
-40
-60
-80
100 200 300 400 500 600 700 800
0
Temperature ( C)
Fig. S1 Thermogravimetric curve for Pt NPs/CNFs heterostructures, over the temperature range
30-800 0C at temperature ramp, 10 0C/min.
Fig. S2 Current-time responses of the Pt/CNFs-GCE on successive injection of 0.1 mM H2O2 (a)
and 0.5 mM H2O2 (b) into N2-saturated PBS (0.1 M, pH 7.0). Cyclicity of the Pt/CNFs-GCE
after scanning 50 cycles continuously in 0.1M phosphate buffer solution (pH 7.0) added 2.0 mM
H2O2 with scan rate of 100 mV·s−1 from -1.0 V to1.0 V (c). Amperometric responses of 0.2 mM
five relevant electroactive species and 0.1 mM H2O2 on the Pt/CNFs-GCE at -0.2 V (d).
Table S1 Comparison of nonenzymatic H2O2 sensors
CuO2-rGOa
Linear
Detection
range
limit
(mM)
(µM)
0.01-13.1 1.6
8
0.03-12.8 21.7
PBI-BA-Gsb
Cu2O NGs/GNsc
Cu NCs
Graphene-AuNP/GCE
0.025-5
0.3-7.8
0.01-1.0
0.02-0.28
3.1
20.8
10
6
Response
R2
Stability
time
(s)
1.5
0.9994 81.6 %
(14 days)
2
-92 %
(14 days)
1.4
0.996 -7
0.9978 -----0.994 --
NP-PdCr
0.1-1.9
3.1
1.5
Electrode materials
CuO-SiNWs
[7]
[1]
[2]
[3]
[4]
[5]
[6]
0.0075-1 1.0
0
Pt/MWCNTs-PANI-G 0.007-2.5 2.0
CEe
CoNP/Pt/CNTs/GCE 0.0002-1. 0.1
25
PVA-MWCNTs-PtNP 0.002-3.8 0.7
s/GCEf
5
93.1%
(14 days)
0.9980 --
5
0.9996 --
[9]
2
0.9979 --
[10]
--
--
[11]
Pt/CNFs-GCE
2
Pd/MCNsd
0.005-15
1.7
0.996
References
87 %
(1
month)
0.9994 98.1 %
(14 days)
[8]
This work
Abbreviation: aCuO2-rGO, CuO2-reduced graphene oxide. bPBI-BA-Gs, poly[N-(1-onebutyric
acid)benzimidazole] / graphene sheets. cCu2O NGs/GNs, Cu2O nanocubes/graphene nanosheets.
d
MCNs, mesoporous carbon nanospheres. eMWCNTs, Multi-wall carbon nanotube. fPVA,
poly(vinyl alcohol).
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