What is the thickness of Zn foil used as anode in Zinc ion batteries?

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Why a white thin layer occurred while drying over desired nanoparticles?

Before drying, I washed the nanoparticles with ethanol and then kept them for drying in an oven by pouring the solution onto a petri dish. After drying for 24 hours, I observed that a white layer...

26 January 2023 9,560 2 View

What are the different methods or chemicals to reduce the lignin content in woody biomass to make it easily degradable?

What are the different chemicals that can be used during heaping of woody biomass residual to reduce its lignin content and make the wood degradable for composting.

12 January 2023 5,411 0 View

How to determine the value of molar volume of the electrode material for calculation of diffusion coefficient?

I am using GITT results to calculate the diffusion coefficient (DNa+) with the equation as follows: D =(4/πτ) ( mVm/MA)2 ( ΔEs/ ΔEt)2 where Vm = molar volume What will be the value of Vm for...

17 November 2022 4,087 0 View

How to understand whole method of regional flood frequency analysis in a simple steps?

How to understand whole method of regional flood frequency analysis in a simple steps by step method with real example taken. The book on RFFA written by Hosking and Wallis is quite difficult to...

03 June 2022 332 1 View

What is the permissible limits for the total solids, TSS, FDS, VDS, FSS and VSS in the water?

The total solids is the total dissolved solid (TDS) + total suspended solids (TSS). Total dissolve solid is further divided into fixed dissolved solids (FDS) and volatile dissolve solid (VDS) and...

12 January 2021 3,041 1 View

Biochar surface area increase with temperature?

Do all the feedstocks biochar specific surface area increase with increasing annealing temperature or some decrease?

27 February 2020 7,898 5 View

How to overcome 8M urea interference in protein estimation by bradford method?

Reagents viz; Urea, thiourea, tris, and CHAPS used were of sisco laboratories make and DTT and Bradford reagent were Biorad make. Protein was quantified by quick start Bradford biorad make ragent...

17 January 2020 8,132 0 View

In seed crystal technique to grow single crystal how should i mount the crystal On string dipped in supersaturated dolution?

I am facing problem in mounting the small crystal on string .

09 June 2019 5,578 1 View

Active short circuit in Inverter in case of high speed of motor?

Hello, The scenario in PMSM motor is, in range of high speed (field weakening) if inverter get a short circuit it is not advisable to just open the switches, becuase due to motor back EMF and...

06 May 2019 9,203 2 View

What is wrong with this algorithm of the PID controller?

The problem is of PID controller for a ball beam system, intially some angle is given to the beam. A controller is to be designed to balance the ball in the beam. if (*rtu_BallPositionValid) {...

12 August 2018 8,047 10 View

What is the reason for current dropping in OER , LSV curve?

I tried four trials of the same Copper Phosphides sample in Alkaline medium ( 0.5M KOH) with Hg/HgO reference electrode and Pt as counter electrode. I used 0.001 V/s scan rate for first three...

10 August 2024 3,629 1 View

Binder for ZnO nanoparticles in graphite paste electrode?

I have been using paraffin, but the deposited ZnO still detach from electrode. What is the best binder to modify graphite paste electrode with ZnO nanoparticles?

03 August 2024 4,624 3 View

How to find a reaction is reversible or irreversible in CV? How to know the number of electrons transfer?

My screen printed electrode CV is given here. For Nerstean one electron reaction the delta E value should be close to 57 mV and ration of Ic/Ia should be close to 1. I did CV of my screen printed...

30 July 2024 4,671 3 View

How to check pH of a high strength hydrogel?

We are working on biopolymeric hydrogels. Our system is highly viscous and sticky, and the gel formed are high in strength. We are unable to use pH electrode and pH strip. Please suggest an easy...

30 July 2024 942 2 View

While doing Chronoamperometry, when the light is turned off, why the current is not decreasing sharply?

Here, I have used Ag/AgCl as reference electrode and 0.5M KOH.

29 July 2024 4,538 3 View

Why semicircle of nyquist plot is not complete?

While I am doing HER, I noticed that nyquist plots of Electrochemical Impedance Spectroscopy (EIS) is not complete. Will it affect for the Linear Sweep Voltametry (LSV) data? However, I can found...

26 July 2024 7,542 4 View

Why do these abnormal charge/discharge curves of coin cell batteries appear?

As shown in the figures, there are several abnormal charge/discharge curves.Each of them may have different problems. I am curious why these situations appeared differently?There are a lot of...

24 July 2024 6,930 1 View

How to saturate steel samples with hydrogen?

I have tried to saturate ferritic steel with hydrogen using the electrolytic method and H2SO4. However, the effect was very poor even after 3 days of "saturation". Can anybody help in choosing a...

24 July 2024 4,393 2 View

What binder would be the best choice to modify glassy carbon electrode with a 2D Material like Graphene or MXene?

I am trying to drop cast 2D Materials on Glassy Carbon Electrode for Cyclic voltametry and EIS purpose. What would be best binders to use?

23 July 2024 5,776 2 View

I obtain two plateu instead of one in LFP cathode assembled with graphite anode in 1M LiTFSI in DOL/DME, what does this mean?

I have attached the charging curve from the battery tester for review. I need help on what is happening

21 July 2024 6,898 2 View