How different sulphur precursors modify the pH of an alkaline solution during hydrothermal synthesis of chalcogenides?

I am using different sulphur precursors in an alkaline medium for chalcogenide synthesis and at the end of the reaction i got decants with different pH values. How these precursors change the pH...

31 December 2019 231 1 View

In dye degradation, if the absorption peaks of the dye and catalyst lie in two different regions of solar spectrum, how to decide light source?

Illumination source has mainly to create excitons in the catalyst, hence mainly depends on the region of its band gap energy (hv>= Eg). I want to confirm whether if the absorption regions of...

06 July 2018 7,224 2 View

What are the possible ways to increase the crystallite size in nanomaterials?

I am fabricating solar cells from earth abundant materials using sol gel method. In order to increase the efficiency i need to improve the crystallite size as in accord with Rodriguez - Lazcano.

09 October 2017 10,003 1 View

How to find which unit cell of a given phase is present?

08 September 2017 3,408 5 View

Why we get different intensity peaks in XRD?

i want to know the exact cause why along certain prefferred directions the X Rays are highly diffracted.

08 September 2017 8,482 13 View

How to remove pin holes in dropcasted thin films made from ink?

i am getting a lot of pin holes while fabricating dropcasted thin films from the corresponding inks. which parameter should i control to avoid these pin holes?

08 September 2017 5,427 0 View

I want to know how to calculate the average crystallite size for multiple XRD peaks of a compound?

01 January 1970 9,605 11 View

Is there any relation between particle size, grain size and crystallite size?

actually i am getting particle size and crystallite sizes almost in equal ranges for thin films, is it possible? if so please mention.

01 January 1970 8,186 13 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Does the pressure(-600 mmHg) affects pH?

When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...

03 March 2021 4,892 5 View

Why can't make aluminum nitride film successfully by use sputter?

We use reactive sputtering process to make aluminum nitride film, and want to make c-axis aluminum nitride film on a silicon substrate, but the crystal orientation cannot be seen with...

03 March 2021 7,975 3 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

Is there any test to determine the cardiovascular risk of patients with obesity? from the perspective of obesity?

We found tests to determine cardiovascular risk taking into account lipid profile, blood pressure, age, history of diabetes, other laboratories. But when weight is involved, there is a paradox. I...

02 March 2021 6,036 1 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

Sutter electrode holder leaking after applying positive pressure. How to fix?

I am using a Sutter electrode holder for my patch clamp experiments, but I'm having trouble keeping positive pressure inside my electrode due to a leak out of the back of the holder. I have added...

02 March 2021 5,829 1 View

What SPSS analysis should I run with one IV (with two levels) and two DVs?

Hi, I am trying to figure out which test would be most appropriate to run for the following question: Is there a difference in task blood pressure between smokers and non-smokers? There are two...

01 March 2021 8,235 2 View