Highly sensitive and stabilized sensing of 6-benzylaminopurine based on NiCo2O4 nanosuperstructures
Highly sensitive and stabilized sensing of 6-benzylaminopurine based on NiCo2O4 nanosuperstructures
复制标题
基于 NiCo2O4 纳米超结构的 6-苄氨基嘌呤的高灵敏度和稳定传感
DOI：
10.1039/c5ra23343g
复制
发表时间：
2016-01
期刊：
影响因子：
3.9
通讯作者：
Hong Zhensheng
中科院分区：
文献类型：
--
作者：
Gong Lingshan;Yan Huixiang;Dai Hong;Zhang Shupei;Li Yilin;Zhang Qingrong;Lin Yanyu;Hong Zhensheng
采用水热法合成了用于测定6-苄基氨基嘌呤（6-BAP）的NiCo2O4纳米超结构。作为一种新型的电材料，NiCo2O4可以用来构建超灵敏和显著稳定的电化学传感器。电化学研究证实，经聚乙烯亚胺（PEI）稳定的NiCo2O4纳米超结构具有孔径大、导电性好和金属催化等特性，可显著提高6-BAP的电催化活性。6-BAP在PEI-NiCo2O4/GCE上的详细电化学行为显示出比裸玻碳电极（GCE）更高的峰值电流和更大的负氧化电位。同时，进一步计算了其动力学和热力学参数，表明该传感平台对6-BAP具有良好的电化学催化作用。制备的PEI-NiCo2O4/GCE 6-BAP传感器线性范围为10−10 ~ 10−5 M，检测限低至0.1 nM。该电极具有长期稳定、灵敏度高的特点，在食品污染检测中具有良好的实用性和更广泛的应用前景。
NiCo2O4 nanosuperstructures that were synthesized by a facile hydrothermal method were developed for the determination of 6-benzylaminopurine (6-BAP). As a novel electric material, NiCo2O4 can be utilized to structure an ultrasensitive and prominently stable electrochemical sensor. The electrochemical investigation confirmed that NiCo2O4 nanosuperstructures stabilized via polyethyleneimine (PEI) could remarkably boost the electrocatalytic activity for the oxidation response of 6-BAP owing to its unique properties of large pore volume, good electrical conductivity and metal catalysis. The detailed electrochemical behavior of 6-BAP at PEI-NiCo2O4/GCE exhibited a higher peak current and more negative oxidation potential than the bare glassy carbon electrode (GCE). Simultaneously, its kinetic and thermodynamic parameters were further calculated, indicating that this sensing platform accomplished excellent electrochemical catalysis towards 6-BAP. The fabricated sensor of PEI-NiCo2O4/GCE for 6-BAP presented a wide linear range from 10−10 to 10−5 M with a low detection limit of 0.1 nM. The modified electrode exhibited long-term stability and high sensitivity and showed good practicability for determining contamination in food and even broader applications.
登录
查看更多内容
用于高性能超级电容器的具有不同暴露反应平面的链状NiCo2O4纳米线
影响因子：
11.9
作者：
Liu, Qian;Liu, Xijian;Zhang, Zhenyu;Hu, Junqing
通讯作者：
Hu, Junqing
影响因子：
5.7
作者：
Gelaneh Woldemichael;T. Tulu;G. Flechsig
通讯作者：
Gelaneh Woldemichael;T. Tulu;G. Flechsig
影响因子：
2.3
作者：
Tiejian Zhu;Qingsheng Wu;Ping Chen;Yaping Ding
通讯作者：
Tiejian Zhu;Qingsheng Wu;Ping Chen;Yaping Ding
影响因子：
3.9
作者：
Padmanathan, N.;Selladurai, S.
通讯作者：
Selladurai, S.
影响因子：
22.1
作者：
Wang, Yi;Wang, Xin;Li, Chang Ming
通讯作者：
Li, Chang Ming