Chem. J. Chinese Universities ›› 2015, Vol. 36 ›› Issue (7): 1378.doi: 10.7503/cjcu20150012
• Physical Chemistry • Previous Articles Next Articles
SONG Yukun1,2, LÜ Hong1,2,*(), HAO Chuanpu1,2, MI Cangen1,3
Received:
2015-01-07
Online:
2015-07-10
Published:
2015-06-17
Contact:
LÜ Hong
E-mail:lvhong@tongji.edu.cn
Supported by:
CLC Number:
TrendMD:
SONG Yukun, LÜ Hong, HAO Chuanpu, MI Cangen. Effect of IrO2 Modification of Ti Mesh on Electrochemical Performance of Collector Layer for Solid Polymer Electrolyte Electrolyzer†[J]. Chem. J. Chinese Universities, 2015, 36(7): 1378.
Ti mesh | Mass before modification/mg | Mass after modification/mg | IrO2 loading/mg | IrO2 loading ratio(%) |
---|---|---|---|---|
50 mesh Adams | 80.53 | 81.92 | 1.39 | 1.70 |
100 mesh Adams-1 | 45.98 | 46.19 | 0.21 | 0.45 |
100 mesh Adams-2 | 48.71 | 49.39 | 0.68 | 1.38 |
100 mesh Adams-3 | 47.34 | 48.63 | 1.29 | 2.65 |
Table 1 Modified Ti mesh specimens
Ti mesh | Mass before modification/mg | Mass after modification/mg | IrO2 loading/mg | IrO2 loading ratio(%) |
---|---|---|---|---|
50 mesh Adams | 80.53 | 81.92 | 1.39 | 1.70 |
100 mesh Adams-1 | 45.98 | 46.19 | 0.21 | 0.45 |
100 mesh Adams-2 | 48.71 | 49.39 | 0.68 | 1.38 |
100 mesh Adams-3 | 47.34 | 48.63 | 1.29 | 2.65 |
Fig.2 SEM images of Ti meshes before(A, B) and after(C, D) modification at low(A, C) and high(B, D) magnifications(A), (B) 50 mesh Ti mesh; (C), (D) 50 mesh Adams.
Fig.5 Polarization curves of water electrolyzers employing different anode electrode collector layersa. 50 mesh non-modified; b. 50 mesh Adams; c. 100 mesh Adams-2.
Fig.6 EIS of water electrolyzers employing diffe-rent anode electrode collector layers at 0.05 A/cm2a. 50 mesh non-modified; b. 50 mesh Adams; c. 100 mesh Adams-2.
Fig.7 Repetitive cyclic voltammetry of water electrolyzers employing different anode electrode collector layersa. 50 mesh non-modified; b. 50 mesh Adams; c. 100 mesh Adams-2.
Ti mesh | RΩ/Ω | Rct/Ω |
---|---|---|
50 mesh non-modified | 0.195 | 0.272 |
50 mesh Adams | 0.129 | 0.105 |
100 mesh Adams-2 | 0.186 | 0.102 |
Table 2 Rct and RΩ of water electrolyzers employing different anode electrode collector layers
Ti mesh | RΩ/Ω | Rct/Ω |
---|---|---|
50 mesh non-modified | 0.195 | 0.272 |
50 mesh Adams | 0.129 | 0.105 |
100 mesh Adams-2 | 0.186 | 0.102 |
Ti mesh | RΩ/Ω | Rct/Ω |
---|---|---|
100 mesh Adams-1 | 0.217 | 0.110 |
100 mesh Adams-2 | 0.186 | 0.102 |
100 mesh Adams-3 | 0.211 | 0.098 |
Table 3 Rct and RΩ of water electrolyzers employing modified Ti meshes with different IrO2 loadings
Ti mesh | RΩ/Ω | Rct/Ω |
---|---|---|
100 mesh Adams-1 | 0.217 | 0.110 |
100 mesh Adams-2 | 0.186 | 0.102 |
100 mesh Adams-3 | 0.211 | 0.098 |
Fig.9 Polarization curves of water electrolyzers employing modified Ti meshes with diffe-rent IrO2 loadingsw(IrO2): a. 0.45%(100 mesh Adams-1); b. 1.38%(100 mesh Adams-2); c. 2.65%(100 mesh Adams-3).
Fig.10 EIS of water electrolyzers employing modified Ti meshes with different IrO2 loadings at 0.05 A/cm2w(IrO2): a. 0.45%(100 mesh Adams-1); b. 1.38%(100 mesh Adams-2); c. 2.65%(100 mesh Adams-3).
Fig.11 Repetitive cyclic voltammetry of water electrolyzers employing modified Ti meshes with different catalyst loadingsw(IrO2): a. 1.38%(100 mesh Adams-2); b. 0.45%(100 mesh Adams-1); c. 2.65%(100 mesh Adams-3).
Fig.12 SEM images of 100 mesh Ti meshes with different IrO2 loadingsw(IrO2): a. 0.45%(100 mesh Adams-1); b. 1.38%(100 mesh Adams-2); c. 2.65%(100 mesh Adams-3).
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