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Questions related from Gibong Yoon
when i make silica nanowires that zinc oxide covered with TEOS by using sol-gel method there are some zinc oxide@silica nanowires and silica nanospheres. i only want to get zinc oxide@silica...
22 September 2016 5,820 2 View
when distances over which lithium ion diffuse are decreased, why lithium ion batteries have high power? can anyone explain how??
29 July 2016 499 5 View
im making zinc oxide nanowires using zinc chloride as precursor , dilute water as solvent and sodium carbonate as source of OH-supply When I make it, they have almost same shape but not...
14 July 2016 4,504 3 View
I know this equation. D=Kλ/(β cos θ) , β = FWHM*2π/360 i got this from one of my experiments by data, k= 0.9, λ=0.154nm, θ=7.21, β = FWHM*2π/360=0.1635*2π/360 If these data are right, the...
02 June 2016 8,810 6 View
i want to understand the principle. when plasticizer added to polymer, why tg falls? please let me know?
31 May 2016 8,513 14 View
hi I experiment the synthesis of the two isomers of dichlorobis(ethylenediamine)cobalt(III) chloride. The two isomers have different colors; the trans isomer is green, while the cis isomer is...
29 April 2016 9,982 4 View
I make silicon by magnesiothermic reduction. and I treat HCl to remove impurities. and will use etching solution(HF,nitric acid, etc...) does anyone know best etching solution ratio(ex. WATER :...
24 December 2015 7,437 2 View
I make silicon nanoparticles dispersed in ethanol. the size is 5~10 nm. and i will use capping agent to stop oxidation and to precipitate from acetone. does anyone know how to precipitate SiNP...
18 December 2015 7,453 2 View
Do you know this mechanism? reaction of (3-aminopropyl)trimethoxysilane as precursor with trisodium citrate dihydrate reducing agent?I refer this paper 'Large-scale aqueous synthesis of...
30 October 2015 4,644 1 View
