What is the relation K factor of Scherrer equation and the shape of particle?

The Scherrer equation, in X-ray diffraction and crystallography, is a formula that relates the size of sub-micrometre particles, or crystallites, in a solid to the broadening of a peak in a...

06 July 2018 7,008 1 View

Does GO has its functional groups on the surface or edge?

For graphene guys, I was wondering if the functional groups decorated the basal plane of graphene oxide or the edge? I would say that there are some of edge and other on the surface, please...

05 June 2018 2,992 0 View

What is the most worst catalyst for CVD graphene?

According to your experience, please advise me about the worst catalyst (substrate metals) can use to growth graphene via CVD?

01 February 2018 692 6 View

How can we measure the thickness of the thin film using the atomic force microscope?

I created some films of graphene oxide using spin coating technique and I want to know how we can measure the thickness of these films using atomic force microscopy experimentally, or from 2D/3D...

10 November 2017 9,569 3 View

Do anyone have the soft copy of JCPDS card No.75-1621?

08 September 2017 7,288 1 View

What is the optimal rpm of spin coating to get 10 nm Graphene oxide thin film ?

I want to use spin coating to make 10 nm of GO

05 June 2016 2,805 0 View

Which Graphite particle size is more suitable for producing graphene using Wet chemical method 20 or 150 Micrometer?

Graphene wet chemical method

01 February 2016 6,014 1 View

Can any help me to prepare 8 mol/L of Nitric acid?

01 January 1970 2,973 1 View

Is it necessary to deposit thin film on quartz to measure UV- transmission and absorption?

I was measuring UV-spectroscopy Transmission and absorption modes for thin film of graphene oxide on glass. and unfortunately no peaks have seen in results. I guess it's necessary to deposit thin...

01 January 1970 9,881 9 View

What is the simplest method to deoxygenate water?

01 January 1970 4,504 3 View

How to simultaneously perform multiple biochemical assays?

I am a research scholar working on heavy metal stress on plants. I will be doing biochemical characterisation( protein, carbohydrate, proline, antioxidant enzymes and many more assays) at interval...

01 March 2021 6,999 3 View

How the Ground Plane implantation is performed without damaging (and w/o varying the undoped nature) the top Si (8-10 nm) in FDSOI technology ?

It is a general practice to introduce Ground Plane in FDSOI devices under the BoX. The Ground Planes are introduced by Ion Implantation through Top Si layer and Buried Oxide. I wanted to know that...

24 February 2021 5,974 4 View

Why is NH4OH added in heavy metals limit test?

The limit test I'm referring to is USP method II. In this procedure you need to dropwise add 6N of NH4OH to the sample until it the pH is alkali. After that you need to dilute and add HOAc until...

23 February 2021 2,049 3 View

Is this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View

Have anyone checked before Cyclic voltammograms of intial ITO substrate and E-teck?

As a beginner in electrochemistry, I tried to obtain cyclic voltamograms of commercial anatase powder deposited on an ITO substrate or on Eteck. After several attempts, I noticed that my cyclic...

23 February 2021 3,175 3 View

How can I measure the thickness of thin layers deposited on textured glass susbtrates?

I want to measure the thickness of aluminum oxide and titanium oxide layers deposited on textured glass substates. The layer thicknesses are typically below 100nm.

21 February 2021 5,465 4 View

How to do a surface treatment of uncoated TiO2 with polymer?

Basically, I would like to know how to treat or coat on the uncoated bare TiO2 (Ti-OH rich) surface with polymer which has anchoring groups in the polymer structure like trimethoxygroups. What is...

21 February 2021 4,657 6 View

I want to simulate a system containing protein and heavy metals; which force field is most reliable for this purpose?

The protein I want to simulate has multiple heavy metals. I wanted to know which force-field I should use with GROMACS to achieve this. Most importantly, do the latest updates in the force-field...

16 February 2021 2,420 1 View

I want to remove TiO2 and SiO2 coating from surface. any one can help me?

I want to remove TiO2 and SiO2 coating from surface. I think that i should use HCl and MgCl2 and an oxidation agent such as potassium nitrate, but i dont know in which propertion should these...

14 February 2021 300 3 View

What can be use to mop up heavy metals from vegetables or soils in quarry mining site?

It has been established that quarry mining site polluted and contaminated it's environment with heavy metals, these affects the crops and vegetables planted in the area. The possible solutions to...

12 February 2021 1,155 5 View