Citation: GUO Jia-Wang, LIU Qin, LI Da-Chao, LIN Yuan, WANG Qian. Synthesis of PdPt Nanotubes Using Biotemplate and Their Application in Detection of H₂O₂[J]. Chinese Journal of Analytical Chemistry, ;2019, 47(11): 1794-1802. doi: 10.19756/j.issn.0253-3820.191457 shu

Synthesis of PdPt Nanotubes Using Biotemplate and Their Application in Detection of H₂O₂

GUO Jia-Wang ^1,2, ,
LIU Qin ^1,2 ,
LI Da-Chao ³ ,
LIN Yuan ¹ ,
WANG Qian ^1,2,4

1.
The State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
2.
University of Science and Technology of China, Hefei 230026, China;
3.
Tianjin University, Tianjin 300072, China;
4.
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA

Received Date: 29 July 2019
Revised Date: 16 September 2019

Fund Project: This work was supported by the Jilin Province Science and Technology Development Program (No. 20170101189JC) and State Key Laboratory of Precision Measuring Technology and Instruments (Tianjin University).

Utilizing the well-defined topography and uniformly distributed arginine resides on tobacco mosaic virus (TMV) exterior surface, we demonstrated a combined strategy of the biotemplate- and bromide ion induced galvanic replacement method to synthesize one tubular dimension (1D) PdPt alloy. The 1D and tubular structure of TMV/Pd₇₀Pt₃₀NT resulted in the improvement of electrochemically active specific surface area (ECSA) and conductivity. These advantages and PdPt bimetallic electronic effects synergistically led to high electrochemical catalytic activity of TMV/Pd₇₀Pt₃₀NT toward H₂O₂. The modified screen-printed electrode modified by TMV/Pd₇₀Pt₃₀NT (SPE/TMV/Pd₇₀Pt₃₀NT) had high sensitivity (493 A/(cm²·mol)), which was higher than the SPE modified by Pd nanotube (TMV/PdNT) and commercial Pt/C. Additionally, the electrodes have wide linear detection range of 8.8×10^-7-1.0×10^-3 mol/L for detection of H₂O₂, with low detection limit of 2.0×10^-7 mol/L(S/N=3).
- Tobacco mosaic virus,
- Platinum-palladium Alloy,
- Nanotube,
- Peroxide hydrogen,
- Electrochemical sensor
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Synthesis of PdPt Nanotubes Using Biotemplate and Their Application in Detection of H2O2

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Synthesis of PdPt Nanotubes Using Biotemplate and Their Application in Detection of H₂O₂