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Questions related from Zineb Benzait
"ND sample was first heated in a 9:1 (v/v) mixture of concentrated H2SO4 and HNO3 at 75 °C for 3 days, subsequently in 0.1 M NaOH aqueous solution at 90 °C for 2 h, and then in 0.1 M HCl aqueous...
05 May 2019 6,647 1 View
Did someone use the filtration centrifuge Hermle Sieva-2 www.hermle-labortechnik.de/en/our-products/filtration-centrifuges/sieva-2.html Is it useful for the separation of nano-particles (when...
10 October 2017 2,775 3 View
in 2015, Peng et al (DOI: 10.1038/ncomms6716) reported a scalable and green method to produce graphene oxide, using potassium ferrate (K2FeO4) as strong oxidant instead of KMnO4: "K2FeO4 (60 g, 6...
10 October 2017 7,060 17 View
For the synthesis of a polymer composite reinforced by hybrid fillers (graphene Gand nanodiamond ND) by vacuum filtration assisted self-assembly, I want that ND particles stay attached to graphene...
08 August 2017 4,916 5 View
I prepared some ITO/ZnO/CdS/CZTS and ITO/ZnO/ZnS/CZTS samples but when I made IV measurements, these samples exhibited diode behavior (I =0 until arriving to around V=0,5 V where I increases...
04 April 2017 3,295 6 View
According to several articles I read, CZTS/CdS heterojunction can degrade if it is annealed at high temperatures due to Cd diffusion which leads to a decrease in the solar cells efficiency. However...
04 April 2017 327 5 View
Considering the theoretical specific capacity and the w% of both silicon and graphite, we can obtain two values of active material mass and charging current for C/20 for example. How can we...
10 October 2016 695 4 View
