XPS spectra were fitted using the XPS peak 4.1 software in which a Shirley background was assumed. The size of colloidal nanoparticles in water-in-oil colloidal emulsion was measured with Malvern Zetasizer Nano-ZS90. For in-situ microscopic observations, we used an optical microscope (OM, Xi’...
However, a non-negligible high intense peak at 3443 cm−1 in Fig. 1(Ac) might have resulted from either –NH or –OH stretching vibrations33,49 of the 3,4-POD amino acid side chains. Second, Fig. 3 exhibits field emission scanning electron microscope (FE-SEM) (A) and ...
Reflectance infrared spectra of all the minerals from CE5 lunar samples exhibit broad absorption in the range 3200–3800 cm−1and centered around 3500 cm−1, which indicates the existence of OH groups (Fig.1a–c, Supplementary Data1). In particular, a small peak centered around 3300...
Hydrogen, as a clean energy carrier, is of great potential to be an alternative fuel in the future. Proton exchange membrane (PEM) water electrolysis is hailed as the most desired technology for high purity hydrogen production and self-consistent with volatility of renewable energies, has ignited ...
the room temperature pl spectra of freshly prepared psls show a characteristic peak located at ~700 nm. the intensity of the pl signal on chemically oxidized samples increased by an order of magnitude; afterwards, when the samples were aged in saturated water vapor conditions, the pl spectra ...
FTIR Spectroscopic Study on Liquid Silica Solutions and Nanoscale Particle Size Determination related silica glasses and their liquid solutions the peak at ~1027 cm -1 can be assigned to vibration modes of SiO 2 on the surface of silica ... J Osswald,KT Fehr - 《Journal of Materials Science...
It shifted the stretching vibration peak of the C-O bond to a low frequency, from 1,086 cm–1 (petroleum ether) to 1,053 cm−1 (water). It also meant that PLA particles in water are more likely to form hydrogen bonds with cellulose. Cluster models containing several complete monomers...
phosphate(P) adsorption mechanisms at the ferrihydrite–water interface as a function of pH, ionic strength (I), and loading level, using a combination of adsorption envelopes, electrophoretic mobility (EM) measurements, and attenuated total reflectance Fourier transform infrared (ATR–FTIR) ...
In situ cryogenic PL spectra evolutions are also closely related to the nucleation growth kinetics of PNC.26,35 Figure 2A shows the in situ cryogenic PL spectra of PNC with 0 μL water added. The PL peaks are gradually redshifted and finally stabilized, with the main emission peak at appro...
12 explains the reason for avoiding the strongly acidic Nafion binding glue in our test system)30. The level of redox-active Co2+ sites on the electrode was calculated according to the linear relationship between the peak current of Co2+/3+ and scan rate30,31,32. Aza-CMP-Co contains ...