Hassan Alshamsi

17 Questions 344 Answers 0 Followers

Questions related from Hassan Alshamsi

What are the effects of climate change on poverty ?

What are the effects of climate change on poverty

22 November 2017 601 26 View

What are possible solutions of cheating in the exams ?

A growing number of university students are cheating in exams with the help of modern technological devices such as mobile phones, smart watches and hidden earpieces. Inspection about such...

23 October 2017 7,574 36 View

What your idea about imaging of species in picometer size(1×10−12 m)?

Today, microscopic systems like SEM,TEM and AFM are available at scientific institutions and research centers. Above techniques are involved in thousands of published articles to imaging...

01 September 2017 5,841 8 View

How to strengthening of Academic Freedom for Faculty Members at Iraqi universities?

Academic life at Iraqi universities is suffering from absence of basics like Academic Freedom and University Independence, how to stabilize such principles?.

30 August 2017 4,732 5 View

What are the reasons behind the weakness of original research in Iraqi universities?

In Iraq today,there are more than 70 university and about 50000 researcher .Acoording to SCImago Journal & Country Rank ,in 20 years ago, the total documents not more than 15000.In your...

24 August 2017 7,342 24 View

What are the new trends of dye sensitized solar cells( DSSCs) ,materials and fabrication?

What are the new developments in techniques and materials to fabricate low-cost and more efficient dye sensitized solar cell

07 April 2017 5,523 11 View

Is uric acid useful as functionalizer and reducing agent for graphene oxide?

I synthesized graphene oxide.I need to synthesis of reduced graphene oxide via green approach .Is uric acid useful for both reduction and Functionalization of graphene oxide?

27 January 2017 1,745 2 View

Which is better as adsorbent RGO-N or RGO-S?

I Synthesized graphene oxide and plane to functionalized RGO as RGO-N and RGO-S . Depending on experience, which is better as adsorbent for removal methlylene blue dye from aqueous solution?

13 January 2017 754 2 View

Which is better to measure the surface charge/zeta potential of nanocomposites?

I synthesized rGO/m-ZnO nanocomposites .One of applications of nanocomposites is photocatalytic degradation of an organic dye. Which is better , measure the z-potential of rGO/m-ZnO suspensions...

08 January 2017 1,985 5 View

To determine the concentration of reduced graphene oxide in aqueous solution, which technique is better?

I synthesized reduced graphene oxide(rGO) via eco-friendly process. Reduced graphene oxide has been identified by XRD ,FTIR, and EDX techniques .I need to determine of rGO concentration in...

05 January 2017 7,609 4 View

How to synthesis Co3O4-rGO-Co3O4 composite employing eco-friendly reduction of GO?

I prepared reduced graphene oxide (rGO )coating Co3O4 composites (denoted as rGO/Co3O4) employing a temperate coprecipitation method and using GO-MOFs . For comparision,I plan to prepare rGO...

03 January 2017 2,897 3 View

How does reduced graphene oxide increases the surface area of metal oxides?

I synthesized rGO/Co3O4 nanocompsites employing a temperate coprecipitation method.The maximum ratio of rGO is 10%.The BET analysis show an increase in the surface area of composite as rGO ratio...

28 December 2016 3,174 3 View

What is the expected effect of temperature(300-500oC) on structural and morphological properties of MWCNTs functionalized with NH2?

I synthesized MWCNTs/M doped ZnO nanocomposites.Given that MWCNTs are functionalized with NH2.The nanocomposites were calcined at temperature range 300-500 C and then investigated by SEM. SEM...

25 December 2016 3,032 5 View

How can I improve loading of MWCNTs on Ag doped ZnO?

I prepared MWCNTs/Ag doped ZnO,but I face a problem of separation of MWCNTs from nanocomposites after sonication .What is a better way to enhance MWCNTs loading?

16 December 2016 653 4 View

How reduced graphene oxide affected active cites of metal oxides?

I synthesized rGO/ZnO nanocomposites in different ratios.The results showed an increse in adsorption capacity of adsorbent as rGO ratio increase.How rGO enhance adsorptive activity of adsorbents?

16 December 2016 7,504 4 View

How to calculate number of graphene oxide and reduced graphene oxide layers

I synthesized reduced graphene oxide and AFM was used to calculate of thikness.How can i calculate the number of layers?

11 December 2016 9,097 7 View

Is Raman spectroscopy suitable tool to determine the layer number of the graphene sheet?

I synthesized reuced graphene oxide.I changed time and reductant concentration.The time and concentration may be have an effect on reduced graphene oxide layers.How can I adopte Raman...

11 December 2016 9,794 3 View