Electrodeposition of Nanostructured Cu Electrode and Its Glucose Assay Performance†

doi:10.7503/cjcu20131049

Abstract

Abstract:

Nanostructured copper electrode was fabricated by electrodeposition of Cu on polyelectrolyte porous film at high overpotentials in acid condition. The effects of electrodeposition parameters on the morphology of electrodeposited Cu and the glucose electrooxidation activity were investigated by scanning electron microscope and electrochemical techniques. The results revealed that well-distinct nanostructured copper electrodes were achieved by electrodeposition of Cu on polyelectrolyte porous film at high overpotentials in acid condition. Cu/PSS/PDDA/ITO electrode which is obtained under optimal conditions exhibited high sensitivity(1310 μA·L/mmol), fast response(2—3 s), wide linear range(1.0×10^-6—5.0×10^-3 mol/L) and low detection limit(5.0×10^-7 mol/L) in glucose determination at a lower overpotential of 0.40 V, with excellent resistance towards electrode fouling.

Key words: Electrodeposition, Nanostructures, Copper, Electrocatalysis

CLC Number:

O657

TrendMD:

XIN Hua, CHEN Libo, SHI Hongyan, SONG Wenbo, LIU Tiemei. Electrodeposition of Nanostructured Cu Electrode and Its Glucose Assay Performance^†[J]. Chem. J. Chinese Universities, 2014, 35(3): 482.

Figures/Tables 9

Table 1 Comparison of electrocatalytical properties towards glucose oxidation(1.0 mmol/L) at Cu/PSS/PDDA/ITO electrodes prepared by different electrodeposition methods

Electrodeposition method	Start oxidation current/V	0.45 V Oxidation current/μA
Constant current electrodeposition(I=-1.20 mA, t=10 s)	0.32	550.32
Constant potential electrodeposition(E=-1.20 V, t=10 s)	0.30	746.78
Potential step electrodeposition(E₁=-1.50 V, t₁=2 s; E₂=-1.00 V, t₂=8 s)	0.32	431.25

Fig.1 Evolution of oxidative peak current(a) at 0.40 V and onset potential(b) of 0.2 mmol/L glucose at Cu/PSS/PDDA/ITO deposited at different potentials for 10 s in 0.5 mol/L H2SO4 containing 0.1 mol/L CuSO4

Fig.2 Evolution of oxidative peak current(a) at 0.40 V and onset potential(b) of 0.2 mmol/L glucose at Cu/PSS/PDDA/ITO deposited at -1.20 V for different time in 0.5 mol/L H2SO4 containing 0.1 mol/L CuSO4

Fig.3 SEM images of PSS/PDDA/ITO(A) and Cu/PSS/PDDA/ITO(B) and CV curve of Cu/PSS/PDDA/ITO in 0.1 mol/L NaOH at 50 mV/s(C)

Fig.4 Current responses of glucose with different concentrations at Cu/PSS/PDDA/ITO electrode(A) and its calibration curve(B) (A) c(Glucose)/(mmol·L-1): a. 0; b. 0.1; c. 0.2; d. 0.3; e. 0.4.

Fig.5 Plots of oxidation current density(a) and signal-to-background ratio(b) to the applied potential at Cu/PSS/PDDA/ITO electrode obtained by chronoamperometry

Fig.6 Steady-state current-time response of Cu/PSS/PDDA/ITO electrode with successive addition of 1.0 mmol/L glucose into 0.1 mol/L NaOH at 0.40 V(A) and calibration curve for amperome-tric response to glucose at Cu/PSS/PDDA/ITO electrode(B)

Fig.7 Ampermetric current response of Cu/PSS/PDDA/ITO electrode to 1.0 mmol/L glucose and other interferences in 0.1 mol/L NaOH at +0.40 Vc(AA)=c(UA)=0.1 mmol/L; c(Ethanol)=c(OA)=10 mmol/L.

Table 2 Results of analysis of standard samples with different concentrations of glucose at 0.40 V

Sample	Glucose concentration/ (mmol·L^-1)	Detected results on Cu/PSS/PDDA/ITO/(mmol·L^-1)	Recovery(%)	Detected results by standard spectrophotometry/(mmol·L^-1)
1	0.20	0.2055	102.80	0.2025
2	0.50	0.5013	100.30	0.5026
3	0.80	0.7973	99.66	0.8019
4	1.00	0.9904	99.04	1.0350
5	2.10	2.1420	102.00	2.1020
6	3.50	3.4630	98.94	3.5080

References 23

[1]	Rappaport F., Eichhorn E., Am. J. Clin. Path., 1950, 20, 834—836
[2]	Wang J., J. Pharm. Biomed. Anal., 1999, 19, 47—53
[3]	Park S., Chung T. D. Kim H. C., Anal. Chem., 2003, 75, 3046—3049
[4]	Jiang L. C., Zhang W. D., Biosens. Bioelectron., 2010, 25, 1402—1407
[5]	Yang J., Jiang L. C., Zhang W. D., Gunasekaran S., Talanta,2010, 82, 25—33
[6]	Ding Y., Wang Y., Su L. A., Bellagamba M., Zhang H., Lei Y., Biosens. Bioelectron., 2010, 26, 542—548
[7]	Song S. Q., Rao R. C., Yang H. X., Zhang A. M., J. Phys. Chem. C,2010, 114, 13998—14003
[8]	Xia Y., Yang P., Sun Y., Wu Y., Mayers B., Gates B., Yin Y., Kim F., Yan H., Adv. Mater., 2003, 15, 353—389
[9]	Wang X., Hu C., Liu H., Du G., He X., Xi Y., Sensors and Actuators B: Chemical,2010, 144, 220—225
[10]	Qu J. Y., Kang S. P., Lou T. F., Du X. P., Chem. J. Chinese Universities,2013, 34(9), 2079—2101
	(屈建莹, 康世平, 娄童芳, 杜学萍. 高等学校化学学报, 2013, 34(9), 2079—2101)
[11]	Shiju N. R., Guliants V. V., Appl. Catal. A: Gen., 2009, 356, 1—17
[12]	Murray R. W., Chem. Rev., 2008, 108, 2688—2720
[13]	Kang X., Mai Z., Zou X., Cai P., Mo J., Anal. Biochem., 2007, 363, 143—150
[14]	Zhou S., Feng X., Shi H., Chen J., Zhang F., Song W., Sensors and Actuators B: Chemical,2013, 177, 445—452
[15]	Zhao J., Wei L., Peng C., Su Y., Yang Z., Zhang L., Wei H., Zhang Y., Biosens. Bioelectron., 2013, 47, 86—91
[16]	Li R. Y., Xia Q. F., Li Z. J., Sun X. L., Liu J. K., Biosens. Bioelectron., 2013, 44, 235—240
[17]	Tong S., Wang W., Li X., Xu Y., Song W., J. Phy. Chem. C,2009, 113, 6832—6838
[18]	Qin S., Chen L. S., Shi Y., Liao Q., Jin X. G., Chem. J. Chinese Universities,2005, 26(6), 1183—1185
	(秦胜, 陈柳生, 史燚, 廖琦, 金熹高. 高等学校化学学报, 2005, 26(6), 1183—1185)
[19]	Meng F., Shi W., Sun Y., Zhu X., Wu G., Ruan C., Liu X., Ge D., Biosens. Bioelectron., 2013, 42, 141—147
[20]	Luo S., Su F., Liu C., Li J., Liu R., Xiao Y., Li Y., Liu X., Cai Q., Talanta,2011, 86, 157—163
[21]	Batchelor C., Du Y., Wildgoose G. G., Compton R. G., Sensors and Actuators B: Chemical,2008, 135, 230—235
[22]	Zhao Y., Zhao J., Ma D., Li Y., Hao X., Li L., Yu C., Zhang L., Lu Y., Wang Z., Colloids and Surfaces A-Physicochemical and Engineering Aspects,2012, 409, 105—111
[23]	Kumar S. A., Cheg H. W., Chen S. M., Wang S. F., Materials Science & Engineering C-Materials for Biological Applications,2010, 30, 86—91