in situ H-1 MAS NMRzeolite HYbenzeneacidityproton transferSignificant hydrogen productivity (0.33 mol% in products) from H2O splitting by atmospheric dielectric barrier discharges has been achieved with tubular plasma reactors at room temperature. The water splitting activity varies with different metal-...
Mw = 96.11 g/mol) with a specific mole number of distilled water ([Math Processing Error]; DW; Sigma Aldrich) in an argon glovebox. Each prepared sample was transferred to a standard 5 mm NMR tube (Boro-300-5-8; Deutero GmbH). A glass...
The 17O NMR peak is split into five components by the 17O residual quadrupolar coupling, each of which is split into a triplet by the 1H-17O residual dipolar coupling and scalar coupling. The splittings are analysed in terms of the partial alignment of the encapsulated water molecules. ...
clusters with water oxidative ability and CO2reductive ability can be connected, it is possible to realize the overall reaction of artificial photosynthesis without additional photosensitizers and sacrificial agents9,14. Currently, the mainstream methods to achieve the incorporation of dual active sites wit...
This peak was regarded as the sign of “free” OH radical in liquid water [24]. Miteva et al. considered that the increase of the concentrations of HP leads to a decrease in the frequency of the “free” OH radical of the water in the spontaneous Raman scattering [25]. Lin et al....
Peak value of δ 155.33 (NH-C-C=N) in 13C NMR further confirmed the formation of tetrazole. In addition, melting point of the synthesized tetrazole (214-216 0C) derived from benzaldehyde (model reaction) matched with the reported data31. Another significant component in the current procedure...
On the other hand, for neutron scattering experiments, it is possible to optimize the scattering strength of a sample by decreasing the contrast between the two phases, particulate, and solvent (water) in a way that is analogous to the role of refractive index adjustment in light scattering [...
1630 cm−1 Fundamental bending mode of water molecules The intensity of the absorbance bands is typically measured as the height of the absorbance peak above the baseline and is termed the absorbance. These absorbance values are then converted into concentrations via the Beer-Lambert law, which ...
CERIC SULFATE HYDRATE (CAS 123333-60-8, CeH2O9S2), is a white crystalline solid, widely used in analytical chemistry and as a catalyst in various chemical reactions, with excellent oxidizing properties. It plays a crucial role in redox reactions, organic synthesis, and water treatment ...
We used low-field NMR relaxation to investigate CO2 and water interactions in these coals across a variety of time-scales. The injection of helium did not change the T2 spectra of the coals. In contrast, the T2 spectra peaks of micro-capillary water gradually decreased and those of macro-...