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Paper Straw manufacturers in Appium
Paper Straw manufacturers
Application of Electrochemical Workstation/potentiostat in the study of Catalytic performance (RDE and RRDE)
Corrtest potentiostat CS2350 is a dual channel potentiostat, it's available with two individual channel work in synchronously.
CS2350 bipotentiostat is developed on regular single- channel CS350. There are two independent sets of built-in potentiostat/galvanostat. Each with a set of counter/working/reference electrode. CorrTest software controls the output potential and current.
CS2350 consists of main channel and slave channel. The slave channel applies floating mode to control the potential and current of WEII. The potential and current of WEII can independently remain constant. Tests (independent of WEI) such as linear scan and cyclic voltammetry sweep can be conducted.
Apart from all functions that single-channel CS350 workstation has, except the RDE, potentiostat CS2350 can be especially used to do RRDE and HDT
RDE is a method of rotating electrode contact solution and then do electrochemical measurement, the advantage of this method is that it can control the speed of fluid movement, it can control the diffusion speed. As a result, the faster the click rotates, the faster the diffusion. At present, many scientific studies use RDE to measure I-V curve at different rotational speeds, which can be fitted by K-L equation to get accurate i-1-ω-1 / 2 curve, to further calculate the electron transfer number of specimen during oxygen reduction.
The Software/Techniques Of Bipotentiostat CS2350
Open Circuit Potential (OCP)
Potentiostatic (I-T Curve)
Potential Stair-Step (VSTEP)
Galvanic Stair-Step (ISTEP)
Linear Sweep Voltammetry (LSV)
Cyclic Voltammetry (CV)
Staircase Voltammetry (SCV)
Differential Pulse Voltammetry (DPV)
Normal Pulse Voltammetry (NPV)
Square wave voltammetry (SWV)
AC voltammetry (ACV)
Differential Normal Pulse Voltammetry (DNPV)
2nd Harmonic A. C. Voltammetry (SHACV)
Square wave stripping
EIS vs Frequency (IMP)
EIS vs Time (IMPT)
EIS vs Potential (Mott-Schottky)
Cyclic polarization curve (CPP)
Linear polarization curve (LPR)
Electrochemical Noise (EN)
Zero Resistance Ammeter (ZRA)
Electrochemical Potentiokinetic Reactivation(EPR)
Hydrogen diffusion (HDT)
Battery charge and discharge
Galvanostatic charge and discharge(GCD)
Rotating ring-disk Electrode
Disc machine control
Why do reference electrodes need salt bridges？
In measuring the potential of the electrode, since the composition of the solution in the reference electrode and the solution in the studied system is different, hence there is a interface between the two solutions, the ions containeing and the concentration of the solution are different, the potential difference of liquid connection is produced at the interface of liquid connection.
How to make salt bridge?
The preparation method of common salt bridge: 1.5 g Agar and 10 g KCl were added into 30ml distilled water to be heated to a slight boiling, stirred and dissolved fully, and the Agar solution was inhaled into the glass tube slowly by negative pressure against the upper end of Lujin capillary tube with ear washing ball. After cooling, it solidifies to form a salt bridge.
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