At what angle does the XRD Peak of Al2O3 appear? In my case, it appears at nearly 25 degree. Is this correct?

03 March 2018 0 2K Report

Shown in the figure is the XRD of native oxide of Al. Please suggest me that is this data correct

Badges
Science method

More Shilpi ..'s questions See All

What is the correct procedure for production of Activated Biochar?

I have prepared biochar from a fruit seed. But I want to activate the biochar either by acid or base impregnation. So, is it necessary to a) Carbonize the impregnated biochar in a furnace for...

07 April 2024 1,534 6 View

Do we need adhesion layer for aluminium deposition on Lithium Niobate (LN) substrate?

For Silicon, we need stack layer (Ti/TiN) to avoid diffusion of Al inside silicon. But do we need adhesion layer for LN substrate? I tried Al electrode patterning with wet etching method, without...

02 October 2023 3,281 0 View

Need a suggestion regarding voltage and power conversion in RF device?

I have measured voltage of one port RF device which was 53 vpp and return loss was -6.3 dB at frequency 7.3 MHz. Now I want to convert voltage into power in watt. So I think I should first get the...

28 August 2023 8,767 3 View

We have Al2O3 wafer which we want to etch. I am looking for commercial etcant and found TechniEtch Al80 from microchemical. Does anyone use?

We have to create a cavity inside wafer. Here is the link for detail of the etchant : https://www.microchemicals.com/technical_information/wet_etching_metals_al_au_cu_cr_ni_ti_ag.pdf It contains...

28 July 2023 1,948 1 View

Why does my time constant show 2.2ms after electroporation of E. coli cells?

I am trying to transform my plasmid into electrocompetent E. coli cells. They were prepared by washing the cells four times with sterile ice-cold water. After the pulsing, the time constant was...

14 May 2023 8,680 6 View

How do I induce protein expression at 42 degree celsius without a shaking water bath?

I have a temperature-sensitive plasmid that gets cured at 42 degrees and simultaneously expresses a protein under the regulation of a temperature-sensitive lambda repressor. For its curing and...

08 May 2023 6,884 1 View

Is there a problem if there are 2 additional bases between the promoter and the gene?

I have to clone a gene below its native promoter but it is part of an operon, so I need to amplify the two genes separately and clone it in two steps. I found a plasmid in my lab which already has...

23 April 2023 6,513 5 View

Has anyone overexpressed a membrane protein after addition of 6X His tag?

Can the addition of 6X his tag lead to a significant decrease in the specific enzyme activity?

23 April 2023 8,643 3 View

Do chemically competent E. coli cells show the same efficiency as the electrocompetent E. coli cells?

I have to perform the genomic integration of a gene, would it be better to use E.coli cells made competent by chemical method or by electroporation? Thank you

23 April 2023 6,779 4 View

What is apodising and unapodising IDT in SAW devices?

Apodising IDT is when aperture is varying throughout the IDT, and unapodising is when aperture is constant. Is it so? can someone correct me if I am wrong? Thanks in advance! Shilpi

21 February 2023 853 2 View

I need JCPDS file of LSFCO nanomaterial. Can anyone provide me?

Require for Rietveld refinement in XRD.

08 August 2024 3,081 2 View

How do you delete a duplicate pdf for the same paper on ResearchGate?

The first pdf file I uploaded had an error. So I uploaded an updated, corrected pdf of that paper with a different pdf name. I dpon't want the old copy to be download or read.

07 August 2024 9,508 1 View

How to understand this crystallographic phenomenon of low temperature crystals in zeolite?

During low-temperature testing, new diffraction peaks that appear could be indicative of several phenomena. In one of our tests, we observed notable new peaks around 40° and 45° in a specific...

06 August 2024 726 3 View

How to fix background error in rietveld refinement of one XRD peak using GSAS-II?

I want to refine one XRD peak of my in-situ xrd but the background is never working good which ultimately fails the refinement. How to refine and adjust the background using GSAS-II

05 August 2024 5,291 2 View

Why results of ROS flurescence are negative as there was no bacteria within?

Hello. I am working on ROS production of two systems: system A is cerium oxide and hydrogen peroxide, system B is cerium oxide nanoparticle, hydrogen peroxide and potassium bromide. I did some...

04 August 2024 5,974 3 View

Why aren't most metal oxides insoluble in water?

Why BaO (s) + H2O(l) ---> Ba 2+(aq) + 2 OH - (aq) if Oxygen loves owning all the electrons, why would it bind to hydrogen which competes with Oxygen for electron ownership more so than...

03 August 2024 5,392 1 View

Why chloride turns into chlorine gas in a Downs cell?

I imagine the battery drives the graphite into a carbocation, then chloride is oxidized to donate the electron to the carbocation, but what pushes the lost electrons of chloride to be shared...

03 August 2024 5,384 0 View

How to calculate the molar proportions of the oxides from the XRF analyses?

02 August 2024 2,565 2 View

Hello, regarding Mxene 2D titanium carbide?

I fabricated Ti3C2Tx using concentrated HF 40%, I plot an XRD as attached image below.. please let to know if I obtained it or not.

02 August 2024 6,789 4 View

What is the ionic radius of Hydrogen anion? And how to know the exact ionic radii of the elements?

I'm trying to calculate the tolerance factors of the hydride perovskite and the value calculated by me and the reported values are contradictory. Need more clarity in using the correct ionic radii...

01 August 2024 2,614 1 View