Hydrogen Peroxide Electrochemical Sensor Based on Ag/Cu Bimetallic Nanoparticles Modified on Polypyrrole
Due to the strong oxidizing properties of H<sub>2</sub>O<sub>2</sub>, excessive discharge of H<sub>2</sub>O<sub>2</sub> will cause great harm to the environment. Moreover, H<sub>2</sub>O<sub>2</sub> is also an energetic material...
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MDPI AG
2023-10-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/20/8536 |
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| author | Yanxun Guan Fen Xu Lixian Sun Yumei Luo Riguang Cheng Yongjin Zou Lumin Liao Zhong Cao |
| author_facet | Yanxun Guan Fen Xu Lixian Sun Yumei Luo Riguang Cheng Yongjin Zou Lumin Liao Zhong Cao |
| author_sort | Yanxun Guan |
| collection | DOAJ |
| description | Due to the strong oxidizing properties of H<sub>2</sub>O<sub>2</sub>, excessive discharge of H<sub>2</sub>O<sub>2</sub> will cause great harm to the environment. Moreover, H<sub>2</sub>O<sub>2</sub> is also an energetic material used as fuel, with specific attention given to its safety. Therefore, it is of great importance to explore and prepare good sensitive materials for the detection of H<sub>2</sub>O<sub>2</sub> with a low detection limit and high selectivity. In this work, a kind of hydrogen peroxide electrochemical sensor has been fabricated. That is, polypyrrole (PPy) has been electropolymerized on the glass carbon electrode (GCE), and then Ag and Cu nanoparticles are modified together on the surface of polypyrrole by electrodeposition. SEM analysis shows that Cu and Ag nanoparticles are uniformly deposited on the surface of PPy. Electrochemical characterization results display that the sensor has a good response to H<sub>2</sub>O<sub>2</sub> with two linear intervals. The first linear range is 0.1–1 mM (R<sup>2</sup> = 0.9978, S = 265.06 μA/ (mM × cm<sup>2</sup>)), and the detection limit is 0.027 μM (S/N = 3). The second linear range is 1–35 mM (R<sup>2</sup> = 0.9969, 445.78 μA/ (mM × cm<sup>2</sup>)), corresponding to 0.063 μM of detection limit (S/N = 3). The sensor reveals good reproducibility (σ = 2.104), repeatability (σ = 2.027), anti-interference, and stability. The recoveries of the electrode are 99.84–103.00% (for 0.1–1 mM of linear range) and 98.65–104.80% (for 1–35 mM linear range). Furthermore, the costs of the hydrogen peroxide electrochemical sensor proposed in this work are reduced largely by using non-precious metals without degradation of the sensing performance of H<sub>2</sub>O<sub>2</sub>. This study provides a facile way to develop nanocomposite electrochemical sensors. |
| first_indexed | 2024-03-10T20:54:45Z |
| format | Article |
| id | doaj.art-7a0c77413a0e44e2976e7c6709065f46 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T20:54:45Z |
| publishDate | 2023-10-01 |
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| series | Sensors |
| spelling | doaj.art-7a0c77413a0e44e2976e7c6709065f462023-11-19T18:04:25ZengMDPI AGSensors1424-82202023-10-012320853610.3390/s23208536Hydrogen Peroxide Electrochemical Sensor Based on Ag/Cu Bimetallic Nanoparticles Modified on PolypyrroleYanxun Guan0Fen Xu1Lixian Sun2Yumei Luo3Riguang Cheng4Yongjin Zou5Lumin Liao6Zhong Cao7Guangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaGuangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaGuangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaGuangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaGuangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaGuangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaGuangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaHunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science & Technology, Changsha 410114, ChinaDue to the strong oxidizing properties of H<sub>2</sub>O<sub>2</sub>, excessive discharge of H<sub>2</sub>O<sub>2</sub> will cause great harm to the environment. Moreover, H<sub>2</sub>O<sub>2</sub> is also an energetic material used as fuel, with specific attention given to its safety. Therefore, it is of great importance to explore and prepare good sensitive materials for the detection of H<sub>2</sub>O<sub>2</sub> with a low detection limit and high selectivity. In this work, a kind of hydrogen peroxide electrochemical sensor has been fabricated. That is, polypyrrole (PPy) has been electropolymerized on the glass carbon electrode (GCE), and then Ag and Cu nanoparticles are modified together on the surface of polypyrrole by electrodeposition. SEM analysis shows that Cu and Ag nanoparticles are uniformly deposited on the surface of PPy. Electrochemical characterization results display that the sensor has a good response to H<sub>2</sub>O<sub>2</sub> with two linear intervals. The first linear range is 0.1–1 mM (R<sup>2</sup> = 0.9978, S = 265.06 μA/ (mM × cm<sup>2</sup>)), and the detection limit is 0.027 μM (S/N = 3). The second linear range is 1–35 mM (R<sup>2</sup> = 0.9969, 445.78 μA/ (mM × cm<sup>2</sup>)), corresponding to 0.063 μM of detection limit (S/N = 3). The sensor reveals good reproducibility (σ = 2.104), repeatability (σ = 2.027), anti-interference, and stability. The recoveries of the electrode are 99.84–103.00% (for 0.1–1 mM of linear range) and 98.65–104.80% (for 1–35 mM linear range). Furthermore, the costs of the hydrogen peroxide electrochemical sensor proposed in this work are reduced largely by using non-precious metals without degradation of the sensing performance of H<sub>2</sub>O<sub>2</sub>. This study provides a facile way to develop nanocomposite electrochemical sensors.https://www.mdpi.com/1424-8220/23/20/8536H<sub>2</sub>O<sub>2</sub> sensorspolypyrroleelectropolymerizationelectrodepositionAg nanoparticleCu nanoparticle |
| spellingShingle | Yanxun Guan Fen Xu Lixian Sun Yumei Luo Riguang Cheng Yongjin Zou Lumin Liao Zhong Cao Hydrogen Peroxide Electrochemical Sensor Based on Ag/Cu Bimetallic Nanoparticles Modified on Polypyrrole Sensors H<sub>2</sub>O<sub>2</sub> sensors polypyrrole electropolymerization electrodeposition Ag nanoparticle Cu nanoparticle |
| title | Hydrogen Peroxide Electrochemical Sensor Based on Ag/Cu Bimetallic Nanoparticles Modified on Polypyrrole |
| title_full | Hydrogen Peroxide Electrochemical Sensor Based on Ag/Cu Bimetallic Nanoparticles Modified on Polypyrrole |
| title_fullStr | Hydrogen Peroxide Electrochemical Sensor Based on Ag/Cu Bimetallic Nanoparticles Modified on Polypyrrole |
| title_full_unstemmed | Hydrogen Peroxide Electrochemical Sensor Based on Ag/Cu Bimetallic Nanoparticles Modified on Polypyrrole |
| title_short | Hydrogen Peroxide Electrochemical Sensor Based on Ag/Cu Bimetallic Nanoparticles Modified on Polypyrrole |
| title_sort | hydrogen peroxide electrochemical sensor based on ag cu bimetallic nanoparticles modified on polypyrrole |
| topic | H<sub>2</sub>O<sub>2</sub> sensors polypyrrole electropolymerization electrodeposition Ag nanoparticle Cu nanoparticle |
| url | https://www.mdpi.com/1424-8220/23/20/8536 |
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