scholarly journals Concentration Polarization and the Polarographic Current-Time Curve. II. The Spherical Diffusion Current

1952 ◽  
Vol 25 (5) ◽  
pp. 281-284 ◽  
Author(s):  
Tomihito Kambara
2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Risheng Li ◽  
Xu Deng ◽  
Longfei Xia

Abstract Diabetes has become a universal epidemic in recent years. Herein, the monitoring of glucose in blood is of importance in clinical applications. In this work, PtNi alloy nanoparticles homogeneously dispersed on graphene (PtNi alloy-graphene) was synthesized as a highly effective electrode material for glucose detection. Based on the modified PtNi alloy-graphene/glass carbon (PtNi alloy-graphene/GC) electrode, it is found that the PtNi alloy-graphene/GC electrode exhibited excellent electrocatalytic performance on glucose oxidation. Furthermore, the results from amperometric current–time curve show a good linear range of 0.5–15 mM with the limit of detection of 16 uM (S/N = 3) and a high sensitivity of 24.03 uAmM−1 cm−2. On account of the good selectivity and durability, the modified electrode was successfully applied on glucose detection in blood serum samples.


2013 ◽  
Vol 547 ◽  
pp. 115-123 ◽  
Author(s):  
Yang Xi Yan ◽  
Yu Jun Feng

The Charge-discharge Properties of Two Different Non-liner Dielectric Capacitors which Were Made by the La-modified PZST Anti-ferroelectric Ceramics (AFE) Capacitors Were Investigated by Measuring the Hysteresis Loops, None-load Discharge Current-time Curves under Different Charge Voltage, and with 100ohm Discharge Current-time Curve. through Compared these Properties with the Liner Capacitors, it Is Evidence to Summarize the No-liner Properties of the AFE Ceramics. it Was Found that, the AFE Capacitors Imax Is Increasing in No-linear with the Charge Electric Field Increase, but to the Linear Capacitor, the Imax-E Curves is a Beeline. and the AFE Imax-E Curve is Similar to the P-E Curve, and this Paper Explained these.


2013 ◽  
Vol 683 ◽  
pp. 326-332
Author(s):  
Yong Li ◽  
Bin Zhou ◽  
Zhi Chun Qin ◽  
Xin Jia ◽  
Lei Ming Wen

In an effort to elucidate the electro-exploding mechanism of semiconductor bridge (SCB), constant current was forced to flow through polysilicon bridge with a resistance about 1 Ω, while the response of voltage and current was measured to obtain its electro-exploding performances. The rise platform and subsequent peak in the current-time curve were observed. It is inferred from the optical signal that the first peak in the current curve results from the plasma generation of the bridge material. The entire electro-exploding process includes Joule heating, melting, vaporizing and plasma generating stage. The laws between performance parameters and the size or shape of bridge area were analyzed; it demonstrated that V-type angles on both ends of bridge were helpful for function time reducing, which provided an experimental basis for SCB design.


2012 ◽  
Vol 433-440 ◽  
pp. 2270-2275
Author(s):  
Chun Lai Zhang ◽  
Hao Liang Wang ◽  
Dian Li Zhao

Based on the combined programming for VB, Excel and MATLAB, the paper makes research on short-circuit current of marine AC power system. This method can not only draw precise calculations, but also has the function of making short-circuit current time curve. And it opens up a new way to study the short-circuit current.


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