What's the proublem with my cell if when I tested it showed like spike patern at voltage or current graph ?

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What is the different of C-F, C-F2 and C-F3 bond in C1s or F1s of XPS result?

I was measured the XPS of my FeF2 coated by carbon and got the XPS results of 288.5 eV and 292eV in C1s which were correspond to the C-F and C-F2, also in my F1s contain that peak of C-F and C-F2...

02 March 2019 8,266 8 View

Why nitrogen doped has bad performance in sodium ion batteries?

I was made fef3 materials with n doped carbon and without n for sodium ion batteries but the performance of n doped sample always inferior than without n doped, not like in lithium ion case. I...

07 August 2018 1,380 1 View

Why nitrogen doped has bad performance in sodium ion batteries?

I was made fef3 materials with n doped carbon and without n for sodium ion batteries but the performance of n doped sample always inferior than without n doped, not like in lithium ion case. I...

07 August 2018 6,973 3 View

Why graphitic carbon can improve the conductivity of active material for Lithium or Sodium Ion Batteries compare with amorphous carbon?

Actually, I'm a little curious what makes graphitic carbon has better conductivity compared with amorphous carbon? -Thanks-

03 April 2018 8,317 0 View

What the best method to preparing sample for TEM measurement?

I have matrial FeO containing graphitic carbon from MOF Fe and when I did TEM measurement: 1. I using big consentration between my FeO and ethanol and then sonication for 5 min, and the result of...

10 November 2017 9,995 7 View

Is it possible for change carbon material to become silicon for Lithium Ion Battery?

Actually, people usually using carbon combine with active material like Fe3O4, FeF2, Fe2O3, etc. many researcher work using some active compound and add carbon to their active material and can we...

07 August 2017 5,870 4 View

Which the best way to release hydrogen from MOF for produced energy ?

I read some articles that MOF can store the hydrogen in solid state so we don't need very low temp or high-pressure tank again for store the hydrogen in the liquid state but I still don't...

07 August 2017 4,061 3 View

How we know we success Nitrogen doping or not

I doped MOF and burn with high temp. and how I know I success with doping?

06 July 2017 4,302 11 View

What the best free software for checking compound from XRD raw data

Actually I always used rigaku miniflex for XRD measurement and get .ras, .asc, .raw file from that and what the best free software for want to know the materials containing on my compound

06 July 2017 9,588 1 View

What is the impact of graphitic carbon and just carbon for li ion battery? which is the best?

Actually, I want to synthesize some metal and carbon source for battery application and when I read some reference some metal if burned with high temp. 700-1000c will change the carbon structure...

05 June 2017 6,949 2 View

What is meant by baseline of FTIR data?

I got comment on my FTIR data figure from a reviewer. The reviewer said "FTIR data in Figure should be repeated. there is no bassline." I made Y off set comparison graph of FTIR on OriginLab. Can...

03 August 2024 6,070 3 View

Is the mentioned CV graph a valid one as this graph have only one peak prominent (reduction)?

I have used Prussian blue nanoparticles as a redox couple. The PBNPs have been made using only one salt precursor. Also, during scan rate studies, a small oxidation peak can be consistently found...

31 July 2024 9,697 0 View

Entropy measure and QSPR modeling in Graph Theor. How to construct the table for lengthy equation?

The entropy measured of molecular graphs plays a crucial rule. The network structures in some cases are very lengthy calculations to handle. Some author avoid to construct table where as most...

30 July 2024 3,126 0 View

There is possible way to calculate experimental DOS from the UPS spectrum of the material. How to calculate the DOS from UPS?

Here, I have attached the UPS graph. I'm trying to calculate the DOS/DOVS from the UPS.

29 July 2024 4,971 1 View

Critique Calculaltion in Topological Indices and QSPR Modeling?

The first step is to analyze a 2D molecular graph and implement partitioning techniques to calculate the topological indices. Secondly impose statically tools to generate QSPR model, may or may...

24 July 2024 9,644 1 View

How to do calculation of Louvain methods calculation for excel sheet and and is there any software available?

The Louvain method – named after the University of Louvain where Blondel et al. developed the algorithm – finds communities by optimizing modularity locally for every node’s neighborhood, then...

23 July 2024 6,659 0 View

Is there a name for this type of function?

Let n∈ℕ, where the function f:A⊆ℝ𝑛→ℝ, 𝐴 is Borel, and (A,d) is a completely seperable space. What is the name of the functions where the graph of f in any (n+1)-dimensional box of A×ℝ is...

17 July 2024 258 1 View

Why is linearity somewhat lost when plotting the Stern-Volmer (SV) graph?

When preparing a graph of fluorophore intensity vs. analyte concentration, the linearity shows an R² of 0.999. However, when plotting the same data as Fo/F vs. analyte concentration, the linearity...

13 July 2024 7,131 0 View

Can you please help me with a cyclic voltammetry?

Hi, I was wondering if you could help. When I take CV in GC electrode with the solution of InCl3 0.01M + citric acid 0.01M + NaCl 0.1M, I get such a graph, how can I correct it so that the...

11 July 2024 5,024 1 View

Which software use to i make this graph quickly and also make more dimensions of this graph( i mean adding vertices or lines in this graph)?

Anyone kindly tell the name of software that make this graph quickly and also tell how we add vertices or lines in this graph with equal distance to get next dimensions of this graph ( i mean how...

11 July 2024 4,499 2 View

Pinar Dundar

no,ı don't help you.

Achmad Yanuar Maulana

oh ok, I already know what's my cell's problem, that caused from the cell not assembled perfectly, as we know sodium and lithium is very sensitive in air condition so and make them dissolve or burn so that's why my cell becomes unstable and die