What is the importance of calcination step before annealing ?

In synthesizing manganite nano particles or any other nanoparticles, is it necessary to perform calcination step. because annealing will also be carried out afterwords at higher temperature than...

11 December 2017 3,332 10 View

Nano particles filtration using filterpaper ?

i have synthesized nickel zinc ferrite nanoparticles, particles size is around 20 nm, calculated using TEM. and is coated with polymer. suspension remain in good condition for like a month....

03 April 2017 8,896 10 View

Triethylene glycol coated nanoparticles filtering ?

I have synthesized triethylene glycol coated cobalt ferrite nanoparticles. particle size is about 15 nm. when i tried to filter it, it wont work. I mean all the particles remain on 200nm filter...

03 April 2017 1,112 2 View

Why is XRD baseline different for different samples?

Why is XRD baseline different for different samples? i have done XRD for NiZnFe2O4 and for CoZnFe2O4 nanoparticles, for first one the baseline starts from 1500 and for second one from 1200. please...

11 December 2016 289 10 View

I want to estimate Curie temperature from hysteresis curve. what are the methods?

i want to estimate curie temperature from hysteresis curve. how do i do that, please help

11 December 2016 3,634 0 View

If a sample has curie temperature for example 50 Degree Celsius?

11 December 2016 7,485 0 View

Difference between ATR and FTIR

so , i was characterizing the coating of nano particles. since i have easy access to ATR i thought lets get the data using ATR(solid sample), however when i compared it with FTIR(in liquid) the...

10 November 2016 9,262 2 View

I synthsizd Co0.4Ni0.6Fe204, XRD is perfectly ok but ICP data is quite strange. it's Fe 0.156mg/L Co 0.030mg/L and Ni 0.12 mg/L. any suggestion?

08 September 2016 2,376 3 View

Why the base intensity of some samples start at different level on XRD graph. i mean for some sample base line start at 1500 and some 50 , why ?

why the base intensity of some samples start at different level on XRD graph. i mean for some sample base line start at 50 and for some base line starts at 1500 intensity level. Also for some...

04 May 2016 3,898 6 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

Which is the most efficient etching solution for nickel based alloys?

Which solution reveals the microstructure and features of nickel-based alloys?

02 March 2021 2,221 3 View

Can chitosan alone can act as a reducing agent for Cu(0) nanoparticle sythesis?

[Synthesizing Cu nanoparticles without using chemical reductants]

01 March 2021 8,359 1 View

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 View

What are the new 2D nanomaterials were used for Silver nanoparticles stabilization?

In the stabilization of AgNPs are vital in current research interest. However, some of the 2D nano-materials like graphene oxide, MoS2, etc... previously used to stabilize it. But still they shown...

01 March 2021 2,207 3 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

Which reagent is best among 'Dimethylglyoxime" and "Dithiothreitol" for spectroscopic determination of Nickel ?

What I think is Dithiothreitol. As it is water-soluble and does not form a precipitate. But, the thing is it contains sulphur which is quite hazardous to aquatic animals.

01 March 2021 8,374 4 View

How to check the uv-vis absorption of nanoparticle by surface plasmon resonance?

I try to check the uv-vis absorption of Indium nanoparticle. Now I am measuring in solution, can I measure it in the form of a film?

01 March 2021 930 3 View

What is recommended for solid domain in ANSYS FLUENT?

Should I mesh the solid domain ? or should I use wall thickness? or Shell conduction? for Heat Transfer between two fluids of a Heat Exchanger. what is recommended?

01 March 2021 9,785 3 View

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View