An allotropic form of carbon that is used in pencils, as a lubricant, and in matches and explosives. It is obtained by mining and its dust can... | Contact experts in Graphite to get answers
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Questions related to Graphite
Hello chemical friends, Does anybody knows a chemical etchant that could selectively etch away ZnS and Ge from graphite (C)? I couldn't find any simple answer to this question yet. Thanks for...
12 November 2019 1,698 2 View
I injected aqueous solution of Co(OAC)2.4H2O over my organic film and then it was dried in air oven at 130 C for 2 h. The XPS analysis of dried sample showed the presence of Co(III), Co(II) and...
11 November 2019 4,283 3 View
Why the two-dimensional crystals were considered unstable at a certain temperature according to the Landau and Peierls Thermodynamic law? And how the perception changed after the discovery of...
28 October 2019 2,746 2 View
To produce a battery cell, I need to calculate the quantities of materials (active material, binder, graphit) with ration 80:10:10. I want to calculate those quantities as mass but how to...
25 October 2019 8,383 3 View
We have an AA PG 500 with many problems: 1. The acetylene-air flame is not stable and it turn off after some minutes. 2. The acetylene-nitrous oxide flame is not stable and it turn off after some...
20 October 2019 8,132 2 View
HOPG is a good substrate for growth of h-BN. One major application of h-BN is single photon emission which can be used for telecom wavelength. Can anyone give me any insight about the absorption...
12 September 2019 6,486 1 View
I have a few questions about the difference between GO and rGO. 1. What is the differnce of the properties between GO and rGO? 2. How to reduce GO to rGO? If I just put GO in the furnace under...
09 September 2019 3,014 17 View
When you calculated the specific capacitance of the electrode, you have use the mass of the active area. My question is about if my electrode composition is PVA (used as binder) mixed with a...
05 September 2019 10,197 3 View
I am planning a sintering experiment for an Fe-Si system. I have a high temperature furnace with graphite heating elements. I am concerned if there's a risk of carbon pick up due to prolonged...
29 August 2019 3,096 1 View
As in case of capacitance calculation for super-capacitor the CV charge discharge method is popularly used. Can the similar method be implement to calculate the capacitance for graphene based...
28 August 2019 3,063 5 View
Hi, I am exfoliating graphite through high shear mixing in order to produce Graphene sheets. Is it possible for Graphene Sheets to have low surface area (around 78 m2/g)? Note that I measured the...
28 August 2019 4,250 3 View
I have synthesised the reduced-graphene oxide but i have no any special filter e.g.PTFE so, is there any easy technique to filter aqueous solution of rGO?if centrifugation is suitable so please...
24 August 2019 4,164 2 View
I assembeled half coin cells with graphite anode and lithium chip. The OCV of coin cell as assembeled was around 2 - 2.5 V (data based on more than 10 cells) and after fortmation cycles (3 cycles...
22 August 2019 6,647 2 View
I prepared platinum coated graphite and I made LSV test ,I found out that the current density was too high arround -8 mA/cm2,I want to know the reason behind that and what to do to fix it?
22 August 2019 7,426 3 View
The procedure was published by Akhavan et al. (2014). The link to their paper is here: Synthesis of graphene from natural and industrial carbonaceous wastes After the treatment, the mixture was...
18 August 2019 346 0 View
One of my friend has sent me two FTIR curves of graphene oxide (sample 1- partially and sample 2 - fully oxidized). However, both of curves do not posses peaks for -OH functional group (usually at...
16 August 2019 2,014 3 View
I need to disperse g-C3N4 in a medium. Please give suggestions. I want to create a thin film; MXene is dispersible in water, so I want to know if g-C3N4 is also dispersible in water, so that I can...
13 August 2019 949 2 View
Ductile cast iron have standard like DIN 12680 Part 3. But what is the acceptable limit.? What should be checked? Intensity level, noise level, size of defects, severity level. Can't able to...
13 August 2019 9,929 3 View
The adsorption energy between 45 atoms molecule and 10x10 unit cell of graphene needed to be calculated. The potential energy surface is very shallow and i can't reach a minimum structure. Any...
08 August 2019 9,918 6 View
Hi, I am currently working on a project, for which I needed to utilize the fluorescence shift originated from the separation between two quantum dots (i.e., CdSe or CdTe). However, is it possible...
03 August 2019 3,569 0 View
I'm reacting a schiff base from salicylaldehyde and p-chloroaniline and trying to react it with mangan(II) salts. I've tried mangan(II) chloride and mangan(II)acetate but both likely produce the...
27 July 2019 4,624 10 View
My ballmill holder (ZrO2) comtaminated with graphite after performing high energy ballmill synthesis. washing with acetone, ethanol is not working, and also ballmilling with acetone is not...
25 July 2019 1,727 6 View
I synthesized composites of rGO and Graphitic carbon nitride (GCN) and tailored its surface area by using silica template (coloidal silica) and then etching with 4 M NaOH. The XRD analysis of...
19 July 2019 8,638 3 View
Para entender que biomasa agrícola, quiero testear con rastrojos de avena, trigo y maíz. Es decir cuales son los tiempo de almacenamiento más adecuados, el porcentaje de humedad, el tamaño de...
14 July 2019 4,351 0 View