Preparation of Ag nanoparticle-decorated polypyrrole colloids and their application for H2O2 detection
Preparation of Ag nanoparticle-decorated polypyrrole colloids and their application for H2O2 detection
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DOI：
10.1016/j.elecom.2011.05.002
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发表时间：
2011-08
影响因子：
5.4
通讯作者：
Xiaoyun Qin;Wenbo Lu;Yonglan Luo;Guohui Chang;Xuping Sun
中科院分区：
文献类型：
--
作者：
Xiaoyun Qin;Wenbo Lu;Yonglan Luo;Guohui Chang;Xuping Sun
本文报道了在没有任何外加还原剂的情况下，通过加热AgNO_3水溶液和预制的PPy胶体溶液来制备银纳米颗粒修饰的聚吡咯胶体(AgNP-PPYCs)。结果表明，这些AgNP-PPYCs对H_2O_2还原具有显著的催化性能。该无酶过氧化氢传感器的安培响应时间小于2s，在信噪比为3的条件下，相应的线性范围为0.1~90 mm(r=0.998)，检出限为1.05μM。
The present communication reports on the preparation of Ag nanoparticle-decorated polypyrrole colloids (AgNP-PPyCs) by heating a AgNO3aqueous solution and pre-formed PPy colloids solution in the absence of any external reducing agent. It suggests that these AgNP-PPyCs exhibit remarkable catalytic performance toward H2O2reduction. This enzymeless H2O2sensor shows a fast amperometric response time of less than 2s, and the corresponding linear range and detection limit are estimated to be from 0.1mM to 90mM (r=0.998) and 1.05μM, respectively, at a signal-to-noise ratio of 3.