Two-Step Electrodeposition of Polypyrrole Nanospheres and Pt Nanostars on Ni Foam for Electrochemical Detection of Ammonia–Nitrogen

Nano Pub Date : 2024-02-01 DOI:10.1142/s1793292024500024
Liang Zhang, Sizhe Liu, Xinyao Liu, Yue Han, Jiali Gu, Xinyue Wang
{"title":"Two-Step Electrodeposition of Polypyrrole Nanospheres and Pt Nanostars on Ni Foam for Electrochemical Detection of Ammonia–Nitrogen","authors":"Liang Zhang, Sizhe Liu, Xinyao Liu, Yue Han, Jiali Gu, Xinyue Wang","doi":"10.1142/s1793292024500024","DOIUrl":null,"url":null,"abstract":"Designing and developing sensitive electrochemical sensors have always been paid attention to achieve the accurate detection of ammonia–nitrogen in the aqueous environment. Herein, a two-step electrodeposition route was used to achieve a Ni foam-supported polypyrrole nanospheres and Pt nanostars sensing electrode (Pt-PPy-Ni foam) for ammonia–nitrogen detection. After controlling the deposition time of Pt nanostars, the optimal Pt-PPy-Ni foam electrode exhibited greater electrocatalytic ability for ammonia oxidation reaction with a current density of 41.73 mA cm[Formula: see text] than that of Pt-Ni foam. This enhanced electrocatalytic ability could be attributed to the excellent adsorption of polypyrrole nanospheres for ammonia and the great catalytic activity of Pt nanostars for the ammonia oxidation reaction. This Pt-PPy-Ni foam electrode showed great detection performances with a sensitivity of 0.013 mA [Formula: see text]M[Formula: see text], and a detection limit of 8.72 [Formula: see text]M. Moreover, accepted results were obtained for the recovery measurements of lake and seawater samples with recoveries from 101.05% to 102.27% and 90.73% to 91.70%. In addition, Pt-PPy-Ni foam sensor exhibited good anti-interference ability with low current charges, reproducibility (relative standard deviation = 1.58%) and stability (relative standard deviation = 6.11%), showing a great application potential.","PeriodicalId":509426,"journal":{"name":"Nano","volume":"42 17","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nano","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1142/s1793292024500024","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

Designing and developing sensitive electrochemical sensors have always been paid attention to achieve the accurate detection of ammonia–nitrogen in the aqueous environment. Herein, a two-step electrodeposition route was used to achieve a Ni foam-supported polypyrrole nanospheres and Pt nanostars sensing electrode (Pt-PPy-Ni foam) for ammonia–nitrogen detection. After controlling the deposition time of Pt nanostars, the optimal Pt-PPy-Ni foam electrode exhibited greater electrocatalytic ability for ammonia oxidation reaction with a current density of 41.73 mA cm[Formula: see text] than that of Pt-Ni foam. This enhanced electrocatalytic ability could be attributed to the excellent adsorption of polypyrrole nanospheres for ammonia and the great catalytic activity of Pt nanostars for the ammonia oxidation reaction. This Pt-PPy-Ni foam electrode showed great detection performances with a sensitivity of 0.013 mA [Formula: see text]M[Formula: see text], and a detection limit of 8.72 [Formula: see text]M. Moreover, accepted results were obtained for the recovery measurements of lake and seawater samples with recoveries from 101.05% to 102.27% and 90.73% to 91.70%. In addition, Pt-PPy-Ni foam sensor exhibited good anti-interference ability with low current charges, reproducibility (relative standard deviation = 1.58%) and stability (relative standard deviation = 6.11%), showing a great application potential.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
在镍泡沫上两步电沉积聚吡咯纳米球和铂纳米柱,用于电化学检测氨氮
为实现对水环境中氨氮的准确检测,设计和开发灵敏的电化学传感器一直备受关注。本文采用两步电沉积路线实现了泡沫镍支撑的聚吡咯纳米球和铂纳米柱传感电极(Pt-PPy-Ni foam),用于氨氮检测。在控制纳米铂柱的沉积时间后,最佳的泡沫铂镍电极对氨氧化反应具有更强的电催化能力,其电流密度为 41.73 mA cm[式中:见正文],优于泡沫铂镍电极。这种增强的电催化能力可归因于聚吡咯纳米球对氨的良好吸附以及铂纳米柱对氨氧化反应的巨大催化活性。该铂-钯-镍泡沫电极具有很高的检测性能,灵敏度为 0.013 mA [式:见正文]M[式:见正文],检测限为 8.72 [式:见正文]M。此外,湖泊和海水样品的回收率测量结果也得到了认可,回收率分别为 101.05% 至 102.27% 和 90.73% 至 91.70%。此外,铂-钯-镍泡沫传感器还表现出良好的抗干扰能力(电流电荷低)、重现性(相对标准偏差 = 1.58%)和稳定性(相对标准偏差 = 6.11%),显示出巨大的应用潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Mechanistic investigation of rapid catalytic degradation of acetaminophen using Electrochemical-induced CoFe2O4 by activation of peroxymonosulfate Viscous dissipation, inclined magnetic field and Joule heating impacts on mixed convection MHD oscillatory diffusion-radiative Casson fluid flow with chemical reaction over a slanted vertical porous plate Statistical evaluation of cancer drugs by QSPR modelling Effect of butylated hydroxytoluene nanoparticles blended with biodiesel derived from Bauhinia purpurea linn seed fuelled in a CRDI diesel engine Effect of Gamma Irradiation on the Optical and Electrical Properties of PVA/CdS Nanocomposites
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1