Low-Temperature Chemical Synthesis of Three-Dimensional Hierarchical Ni(OH)2-Coated Ni Microflowers for High-Performance Enzyme-Free Glucose Sensor

2016 ◽  
Vol 120 (45) ◽  
pp. 25752-25759 ◽  
Author(s):  
Arumugam Manikandan ◽  
Vediyappan Veeramani ◽  
Shen-Ming Chen ◽  
Rajesh Madhu ◽  
Ling Lee ◽  
...  
Materials ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5067
Author(s):  
Jiaxin Tang ◽  
Luo Wei ◽  
Shuaijie He ◽  
Jihui Li ◽  
Ding Nan ◽  
...  

An ultrasensitive enzyme-free glucose sensor was facilely prepared by electrodepositing three-dimensional dendritic Cu on a room temperature exfoliated graphite-derived film (RTEG-F). An excellent electrocatalytic performance was demonstrated for glucose by using Cu/RTEG-F as an electrode. In terms of the high conductivity of RTEG-F and the good catalytic activity of the dendritic Cu structures, the sensor demonstrates high sensitivities of 23.237 mA/mM/cm2, R2 = 0.990, and 10.098 mA/mM/cm2, R2 = 0.999, corresponding to the concentration of glucose ranging from 0.025 mM to 1.0 mM and 1.0 mM to 2.7 mM, respectively, and the detection limit is 0.68 μM. In addition, the Cu/RTEG-F electrode demonstrates excellent anti-interference to interfering species and a high stability. Our work provides a new idea for the preparation of high-performance electrochemical enzyme-free glucose sensor.


Nanomaterials ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 662 ◽  
Author(s):  
Teruaki Fuchigami ◽  
Ryosuke Kimata ◽  
Masaaki Haneda ◽  
Ken-ichi Kakimoto

Highly stable and active low-temperature CO oxidation catalysts without noble metals are desirable to achieve a sustainable society. While zero-dimensional to three-dimensional Co3O4 nanoparticles show high catalytic activity, simple-structured nanocrystals easily self-aggregate and become sintered during catalytic reaction. Thus, complex three-dimensional nanostructures with high stability are of considerable interest. However, the controlled synthesis of complex nanoscale shapes remains a great challenge as no synthesis theory has been established. In this study, 100 nm raspberry-shaped nanoparticles composed of 7–8 nm Co3O4 nanoparticles were synthesized by hydrothermally treating cobalt glycolate solution with sodium sulfate. Surface single nanometer-scale structures with large surface areas of 89 m2·g−1 and abundant oxygen vacancies were produced. The sulfate ions functioned as bridging ligands to promote self-assembly and suppress particle growth. The Co3O4 nano-raspberry was highly stable under catalytic tests at 350 °C and achieved nearly 100% CO conversion at room temperature. The addition of bridging ligands is an effective method to control the formation of complex but ordered three-dimensional nanostructures that possessed extreme thermal and chemical stability and exhibited high performance.


2018 ◽  
Vol 218 ◽  
pp. 90-94 ◽  
Author(s):  
Li Zheng ◽  
Xinhong Cheng ◽  
Peiyi Ye ◽  
Lingyan Shen ◽  
Qian Wang ◽  
...  

CrystEngComm ◽  
2010 ◽  
Vol 12 (4) ◽  
pp. 1120-1126 ◽  
Author(s):  
Xiaojun Zhang ◽  
Aixia Gu ◽  
Guangfeng Wang ◽  
Yan Wei ◽  
Wen Wang ◽  
...  

2017 ◽  
Vol 506 ◽  
pp. 379-385 ◽  
Author(s):  
Jae-Min Jeong ◽  
MinHo Yang ◽  
Dong Seok Kim ◽  
Tae Jae Lee ◽  
Bong Gill Choi ◽  
...  

2008 ◽  
Vol 134 (2) ◽  
pp. 471-476 ◽  
Author(s):  
Yu Bai ◽  
Weiwei Yang ◽  
Ying Sun ◽  
Changqing Sun

2016 ◽  
Vol 120 (30) ◽  
pp. 17024-17028 ◽  
Author(s):  
Mani Sivakumar ◽  
Rajesh Madhu ◽  
Shen-Ming Chen ◽  
Vediyappan Veeramani ◽  
Arumugam Manikandan ◽  
...  

2019 ◽  
Vol 495 ◽  
pp. 143554 ◽  
Author(s):  
Menghui Li ◽  
Liang Fang ◽  
Hua Zhou ◽  
Fang Wu ◽  
Yi Lu ◽  
...  

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