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Questions related from Fatemeh Sadegh
i want calculation ideal factor Schottky diode. but i dont know how? i have graph and data. can u help me?
08 August 2019 6,908 10 View
For a color or pigment that does not completely dissolve in water. How to prepare a solution of color in standard pH? For application in absorption؟
07 July 2019 6,839 4 View
I want to synthesize Fe3O4 nano-particle that in finally, i can keeper in water with particle size fix and nm for later use (Not powder)? Is there any article about this? i found a few article...
05 May 2019 5,936 3 View
why in FT-IR polyaniline: peak shift is different ? such as: 1- oxidant ( APS) Q=1560 cm-1 B= 1488 cm-1 but 2- Oxidant (FeCl3.6H2O) Q= 1554 B=1458 FeCl3.6H2O
01 January 2019 5,189 4 View
Do u have any article about this (carbyne an intermediate)?
04 April 2018 2,486 2 View
elemental analysis (CHN) PANI show in my reaction: C/N ratio is 5. why?
04 April 2018 5,511 0 View
Which conductivity is more? 1-PANI With APS as Oxidant? (Ox/M=1.5) 2-PANI with FeCl3.6H2O Oxidant? (Ox/M=2.5) why?
04 April 2018 3,459 19 View
Do u have ref or article about this? not: TiO2 on cathode (FTO) by Doctor blade. (HOMO and LUMO)?
04 April 2018 7,565 4 View
How can I synthesize Carbyne? I want an easy way(Simple synthesis and materials ). Do you have any suggestions? (article or....)
02 February 2018 2,249 4 View
I did the reaction where I used different iron ratios: 1) Fe (1 mol) + y (1 mol) ====product 2) Fe (2 mol) + y (1 mol) ====product 3) Fe (3 mol) + y (1 mol) ====product 4) Fe (4 mol) + y (1 mol)...
02 February 2018 7,362 3 View
This pic shows the J–V characteristics of my solar cells under illumination. this is normal or anormal?( i see in articles the curvature of the chart is downward but for me It is as follows.no...
02 February 2018 3,070 16 View
I want make a polymer diode. Do u help me that suggest a simple diode design (in an easy way)?? article or....
01 January 2018 1,573 0 View
What band is created between the polymer that we have pani nanosheet.?(whats mechanism and pani arrangement? (only pani, no additional materials like graphen ) do u have any article?
12 December 2017 5,069 5 View
i see this peak in all samples in synthesis of polymer. I got IR FeCl3.6H2O and I compared with SDBS. 1-what's peak 1400 cm-1 in FeCl3.6H2O in FT-IR? 2- Why the intensity of the peak in my sample...
11 November 2017 7,926 1 View
The magnetic property of my sample were analysed VSM (vibrating sample magnetometer). These sample magnetic properties were analysed at applied field 10,000 (Koe). but i see Hysteresis loop in...
11 November 2017 9,441 6 View
Is there a simple way until i recognize somewhat Combine my morphology Without posting to SEM or TEM?
11 November 2017 3,518 6 View
I synthesized PAni (Polymer aniline) but I do not know what is the peak in the 1400 cm-1? Is there a problem with the device or impurities? I synthesized Pani several times carefully And I still...
11 November 2017 9,268 5 View
cm-i synthesised PANI/Fe3O4, and i get FT-IR. but i see this pic that Benzoid peak(1489 cm-1) intensity is mor than quinoid (1582 cm-1 or 1600 cm-1). in this case, do i have Polyaniline...
11 November 2017 3,859 1 View
do u help me? how can I drow the following figure? (solar cell layer) Is there a special software? (paint?!!!)
10 October 2017 1,264 1 View
What is the role of poly-aniline in solar cells as an active layer? and What is the advantage than other active layers?
10 October 2017 7,468 2 View
hi i reaction (polymer + fecl3.6H2O). then i whashed product with NaOh(1 M) to get it Fe3O4. but i get it tiny Particles brick color that i think it is Fe(OH)3 and dont have magnetic feature. why...
10 October 2017 6,598 0 View
I have Raw graph of the EDX analysis. how can I convert Graph A to B?? Do u have link for download??
08 August 2017 1,289 4 View
Hello How can I interpret graphs cyclic voltammetry for polyaniline? The following two graphs refer to polymer synthesis (with differences only in the order of adding substances)Why are the graphs...
08 August 2017 8,968 4 View
IsThis nanorod morphology?? SEM polymer
08 August 2017 3,639 2 View
whats sp hybridization sulfur and phosphorus (PR3 and SR3)? whats the bond angle P and S (R-P-R and R-S-R ?Ao)??
04 April 2017 7,144 4 View
Hello Are england universities in Master's degree in chemistry:Only is thesis? or Thesis and theory lessons?Is there anyone msc chemistry syllabus Universitys of England such as: (oxford, London....
02 February 2017 2,586 0 View
In the following composition: Cl_CH2_S=O_CH2_Cl in H-NMR: H`s are diastrotapic and :d of d? because S is Chiral? or singlet?
05 May 2016 4,501 6 View
do u have one scheme or Photo with the following characteristics : two traps were connected to the condenser.The first one contained a solution of NaOH/EtOH. This trap wasconnected to another...
05 May 2016 1,157 1 View
The viscouscrude product was recovered after removing the solvent( only toluen ) using anevaporator. The crude product was then dissolved in chloroformand filtered. why choloroform?? and what is...
05 May 2016 7,752 3 View
it can be observed that the Particle size of the emulsions VAccopolymers increased by increasing surfactant concentration??or decress?? I have surfactant concentration: 0 g surf 0.6*10-3 g...
05 May 2016 5,696 5 View
What is the order of increasing the following reaction rate:
02 February 2015 1,587 6 View
what is product? Where is formed ring Br????(near R or near CH2 )?? I doubt between 1 and 3 !!!!!!!!!!!! Which??
02 February 2015 7,475 0 View
wich are Chiral molecules?
02 February 2015 9,357 3 View
((Polymer Engineering & Science)) Is it a good journal for publication article? How many months it takes review the manuscript ? published paper only open access??
09 September 2014 3,964 0 View
Hi is Journal of Water Process Engineering in the list of isi Journals? How can prove that Journal of Water Process Engineering is in isi list? this journal is a new journal in elsevier but...
08 August 2014 1,438 0 View
help help Hi is Journal of Water Process Engineering in the list of isi Journals? How can prove that Journal of Water Process Engineering is in isi list? this journal is a new journal in...
08 August 2014 10,082 0 View
In the reaction: SiCl2Me2+2OHCH2CH2CH2CH2OH =HO(CH2)4OSi(Me)2 (CH2)4 OH Does the applied synthesis lead to the formation of cyclic and linear oligomers? If it does, I would like to see which ones...
07 July 2014 8,170 2 View
In polymer science: synthesise of polymer and surfactant.
07 July 2014 8,326 1 View
In polymer science: synthesise of polymer and surfactant:
07 July 2014 8,896 16 View
The biggest problem with a silicone surfactant containing Si-O-C bond, is its fast hydrolysis after mixing with water. I would like to see a detailed investigation of the hydrolytic stability of...
07 July 2014 3,251 2 View
