DLS study showed that the hydrodynamic radius of the aggregates was 308 nm in toluene and 229 nm in cyclohexane. TEM and AFM confirmed the formation of unilamellar reverse vesicles with hollow features (Fig. 7(ii)). These reverse vesicles were more effective to encapsulate the polar dye ...
If we take Y to be approximately 6 MPa (Campbell, 1967) for austenite at the melting point of iron, and a = 2 nm and b = 20 nm, we find P = 30 MPa approximately. Even at values of a = 20 μm and b = 200 μm, P is of course unchanged at 30 MPa because the ratio a/...
HgCl2是正交晶系,用Cu-Kα线(λ=0.154nm)照射(100)、(010)和(001)各面,在角度为7°25′、3。28’和10°13′分别发生一级衍射,试求单位晶胞的大小。点击查看答案 单项选择题 硫脲类药物对甲状腺激素合成无影响,仅能改善甲亢症状。 A.正确 B.错误 ...
Nanoparticles nZVI S-nZVI in glass S-nZVI in plastic FeSSi-0.012g nSiO2 FeSSi-0.024g nSiO2 FeSSi-0.036g nSiO2 FeSSi-0.048g nSiO2 S-nZVI-0.064g nTiO2 S-nZVI-0.081g nAl2O3 Size of single Fe0 grain calculated by XRD (δ, nm) 96 324 397 280 241 195 187 195 191 Crystallinity ...
were obtained through a Raman spectrometer (HORIBA Jobin Yvon, France) with λ=532 nm. Thermogravimetric analysis was accomplished using a TG-DTA analyzer Shimadzu DTA-60 instrument. Under Ar flow, a sample was heated from 30 °C to 1000 °C with a ramp rate of 10 °C min–1....
phase, respectively[36]. Compared with NiSe2, the XRD pattern of NiFeSe2only shifted, and no new characteristic peaks appeared, indicating that Fe ions partially replace Ni ions to form NiFeSe2. Because S has a larger atomic radius than Fe and Ni, the crystal structure is not damaged after...
Because S has a larger atomic radius than Fe and Ni, the crystal structure is not damaged after doping but slightly shifted to a small angle (Figure S2b). Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) can be used to observe the morphology and structure of the...
How do you convert 7.03 cm to nm? You throw a bowling ball away from you. It has a mass of 5.2 kg and a radius of 9.5 cm so that it rolls without slipping at a speed of 4.2 m/s. What are the ball's: a. angular velocity (give magnitude and directio...
The excitation wavelength was set to 483 nm and the emission wavelength to 500 nm for SYTO9 detection, with image stacks acquired using a 10X objective lens. Image analysis was performed using COMSTAT2 software to quantify bio-volume (biomass volume divided by substrate area; μm3μm-2)...
It has been found that the temperature of 1-h optimisation annealing as well as the temperature of first stage of crystallisation process in the first approximation is proportional to the atomic radius of the alloying addition (Cr, Mo, Zr)....