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Fabrication of Non‐enzymatic Electrochemical Glucose Sensor Based on Pd−Mn Alloy Nanoparticles Supported on Reduced Graphene Oxide
Electroanalysis ( IF 3 ) Pub Date : 2020-01-30 , DOI: 10.1002/elan.201900705 Muhammad Waqas 1 , Jianjun Lan 1 , Xiaoxia Zhang 1 , Youjun Fan 1 , Panyu Zhang 1 , Chengzhou Liu 1 , Zhe Jiang 1 , Xiaoqu Wang 1 , Jianqiang Zeng 1 , Wei Chen 2
Electroanalysis ( IF 3 ) Pub Date : 2020-01-30 , DOI: 10.1002/elan.201900705 Muhammad Waqas 1 , Jianjun Lan 1 , Xiaoxia Zhang 1 , Youjun Fan 1 , Panyu Zhang 1 , Chengzhou Liu 1 , Zhe Jiang 1 , Xiaoqu Wang 1 , Jianqiang Zeng 1 , Wei Chen 2
Affiliation
Mixed metals alloy nanoparticles supported on carbon nanomaterial are the most attractive candidates for the fabrication of non‐enzymatic electrochemical sensor with enhanced electrochemical performance. In this study, palladium‐manganese alloy nanoparticles supported on reduced graphene oxide (Pd−Mn/rGO) are prepared by a simple reduction protocol. Further, a novel enzyme‐free glucose sensing platform is established based on Pd−Mn/rGO. The successful fabrication of Pd−Mn alloy nanoparticles and their attachment at rGO are thoroughly characterized by various microscopic and spectroscopic techniques such as XRD, Raman, TEM and XPS. The electrochemical activity and sensing features of designed material towards glucose detection are explored by amperometric measurments in 0.1 M NaOH at the working voltage of −0.1 V. Thanks to the newly designed Pd−Mn/rGO nanohybrid for their superior electrorochemical activity towards glucose comprising the admirable sensing features in terms of targeted selectivity, senstivity, two linear parts and good stability. The enhanced electrochemical efficacy of Pd−Mn/rGO electrocatalyst may be credited to the abundant elecrocatalytic active sites formed during the Pd−Mn alloying and the electron transport ability of rGO that augment the electron shuttling phenomenon between the electrode material and targeted analyte.
中文翻译:
基于还原氧化石墨烯负载的Pd-Mn合金纳米粒子的非酶电化学葡萄糖传感器的制备
碳纳米材料上负载的混合金属合金纳米粒子是制造具有增强电化学性能的非酶电化学传感器的最有吸引力的候选材料。在本研究中,通过简单的还原方案制备了负载在还原氧化石墨烯(Pd-Mn / rGO)上的钯锰合金纳米颗粒。此外,基于Pd-Mn / rGO建立了一种新型的无酶葡萄糖传感平台。Pd-Mn合金纳米颗粒的成功制造及其在rGO上的附着已通过各种显微和光谱技术(例如XRD,拉曼,TEM和XPS)进行了全面表征。通过在-0.1 V的工作电压下于0.1 M NaOH中进行安培测量,探索了设计材料对葡萄糖检测的电化学活性和传感特性。由于新设计的Pd-Mn / rGO纳米杂化物对葡萄糖具有优异的电化学活性,在靶向选择性,敏感性,两个线性部分和良好的稳定性方面具有令人赞叹的传感功能。Pd-Mn / rGO电催化剂增强的电化学功效可归因于Pd-Mn合金化过程中形成的丰富的电催化活性位点和rGO的电子传输能力,可增强电极材料与目标分析物之间的电子穿梭现象。
更新日期:2020-01-30
中文翻译:
基于还原氧化石墨烯负载的Pd-Mn合金纳米粒子的非酶电化学葡萄糖传感器的制备
碳纳米材料上负载的混合金属合金纳米粒子是制造具有增强电化学性能的非酶电化学传感器的最有吸引力的候选材料。在本研究中,通过简单的还原方案制备了负载在还原氧化石墨烯(Pd-Mn / rGO)上的钯锰合金纳米颗粒。此外,基于Pd-Mn / rGO建立了一种新型的无酶葡萄糖传感平台。Pd-Mn合金纳米颗粒的成功制造及其在rGO上的附着已通过各种显微和光谱技术(例如XRD,拉曼,TEM和XPS)进行了全面表征。通过在-0.1 V的工作电压下于0.1 M NaOH中进行安培测量,探索了设计材料对葡萄糖检测的电化学活性和传感特性。由于新设计的Pd-Mn / rGO纳米杂化物对葡萄糖具有优异的电化学活性,在靶向选择性,敏感性,两个线性部分和良好的稳定性方面具有令人赞叹的传感功能。Pd-Mn / rGO电催化剂增强的电化学功效可归因于Pd-Mn合金化过程中形成的丰富的电催化活性位点和rGO的电子传输能力,可增强电极材料与目标分析物之间的电子穿梭现象。