Fuel cell type H2S sensor utilizing Pt-Sn-C/Nafion sensing electrode

被引：14
|
作者：
Yang, Xinyu [1 ]
Li, Weijia [1 ]
Zhang, Yueying [1 ]
Liu, Tong [1 ]
Hao, Xidong [1 ]
Zhou, Ri [1 ]
Liang, Xishuang [1 ]
Liu, Fengmin [1 ]
Liu, Fangmeng [1 ]
Gao, Yuan [1 ]
Yan, Xu [1 ]
Lu, Geyu [1 ]
机构：
[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, 2699 Qianjin St, Changchun 130012, Jilin, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2019年 / 299卷
基金：
国家重点研发计划;
关键词：
H2S sensor; Nafion; Pt-Sn/C; Room-temperature; Fast response-recovery; CO SENSOR; PROPANE DEHYDROGENATION; POLYOL SYNTHESIS; ANODE CATALYSTS; THIN-FILMS; GAS; NAFION; ETHANOL; NANOPARTICLES; PERFORMANCE;
D O I：
10.1016/j.snb.2019.126972
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A Nafion-based amperometric sensor utilizing Pt-Sn/C sensing electrode was developed to realize the effective detection of H2S at room temperature. We compared the morphology and gas-sensing properties of two kinds of PVC materials prepared by the sodium borohydride reduction method and the ethylene glycol method and found that the latter was significantly better. Pt-Sn/C prepared by the latter method has a uniform morphology and high catalytic activity and achieves efficient detection of H2S. The sensor could detect 0.2-100 ppm H2S linearly with a sensitivity of 0.276 mu A/ppm. More importantly, the response-recovery time to 50 ppm H2S was 10 s and 8 s, which signified a very fast rate. Furthermore, the device also exhibited superior selectivity and long-term stability. Such a device has a good application prospect because of its many advantages.
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页数：8
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