Yet, the high-pressure structural behavior of OH in this phase has not yet been measured. In this study, we report high-pressure Raman spectroscopy measurements on Al-free hydrous stishovite with 3.2 ± 0.5 wt% water up to 55 GPa. At ambient pressure, we find that the OH stretching ...
and the microscopic origin of this behaviour is believed to be ion-induced perturbation of water’s hydrogen-bonding network. Here we provide microscopic insights into this process by monitoring the dissipation of energy in salt solutions using time-resolved terahertz–Raman spectroscopy. We resonantly...
Cyclic voltammetry and laser Raman spectroscopy were applied to investigate the properties and structures of metal -tetrakis (-sulfonatophenyl)porphyrins (MeTPPS, Me = Co, Fe, Mn, Cu, Ni) adsorbed on a silver electrode in 0.05 M HSOaqueous solution. The cyclic voltammograms for Oreductio...
This study shows the relevance of using Raman spectrometry for the detection and the quantification of several major pollutant families in an aqueous media such as drugs, pesticides or salts coming from fertilisers. 展开 关键词: Experimental/ chemical products drugs Raman spectroscopy water pollution ...
It was observed that the shapes of the OH stretching band of water at a certain temperature do not show variation with increasing pressure. 展开 关键词: Water Raman spectroscopy Pressure determination Diamond-anvil cells DOI: 10.1366/000370209787169678 被引量: 19 ...
Some conclusions about the effect of protein presence on water structure, as found by Raman spectroscopy, are presented here. An overall intensity decrease and strong spectral shape changes which are encountered in the OH stretching region when increasing protein concentration are explained in terms of...
We discuss the implications of the spectra on the mechanism responsible for the electrical conductivity of shocked H/sub 2/O. 22 refs., 7 figs., 2 tabs. 展开 关键词: Water Intermolecular Forces Raman Spectroscopy Shock Waves Very High Pressure Very High Temperature ERDA/640410 ...
Low-frequency Raman spectra of ethanol−water binary solutions with varying mixing ratios are measured and presented in the form of the intrinsic Raman scattering activity, the R(ν̄) spectra. They exhibit an isosbestic point at 135 cm-1 between the pure water O−O stretching peak at 185...
J. et al, The structure of interfacial water on gold electrodes studied by x-ray absorption spectroscopy. Science 346, 831–834 (2014). Article ADS CAS Google Scholar Subbaraman, R. et al. Trends in activity for the water electrolyser reactions on 3d M(Ni,Co,Fe,Mn) hydr(oxy)oxide ...
It has been also found that Li+ and Cs+ have siInjlar effects on the Raman spectra of water, while the effects of Na+ and K+ are very weak. 展开 关键词: Raman spectroscopy Water Hydrogen-bond DOI: 10.3866/PKU.WHXB19960208 被引量: 12 ...