High-pressure FTIR spectra at pressures up to 8 GPa were performed in a diamond-anvil cell to gain further insight into incorporation mechanism of OH in coesite. The peak positions of the ν 1 , ν 2 , and ν 3 bands decrease linearly with pressure. The mode Grüneisen parameters for ν...
β is the peak width of the diffraction peak profile at the half-maximum height, expressed in radians. The constant K is related to β and set to be 0.89. According to the XRD patterns, the preferential orientation coefficient (T) (or texture coefficient) is calculated as follows: (1) ...
Transform Infrared (FTIR) analysis. The analysis was performed by recording the FTIR spectrum (Spectrum Two, Perkin Elmer, USA) in the Amide-I region (1590–1710 cm−1). The observed spectra in the region were fitted with Gaussian curves to obtain the relative percentage of the secondary st...
Herein, we achieve this goal by using basic copper carbonate (Cu2(OH)2CO3), which is commonly found on the surface of copper. We discover that these materials contain lattice OH in its structure, and we achieve the production of H2O2via the 2e−WOR method in non-carbonate Na2SO4electr...
The catalytic oxidation peak current showed a linear dependence on the AA concentration and a linear calibration curve was obtained in the concentration range of 0.1–2.5 mM of AA with the lowest limit of detection (LOD) of 0.06 mM. Simultaneously, the oxidation peaks of AA over GCE/GR–Gd(...
ftir研究结果显示,存在数量的孤立的站点啊6wt%催化剂,而更多的mnox盖表面催化剂17wt%。 翻译结果3复制译文编辑译文朗读译文返回顶部 红外光谱分析结果表明是有的催化剂 6 wt %、 隔离哦地盘量的存在而更多 MnOx 覆盖 17 wt %催化剂表面。 翻译结果4复制译文编辑译文朗读译文返回顶部 FTIR结果表明有相当数量的出现...
The interaction between oxygen vacancies and water was also confirmed by Raman spectra (Fig.3d). The peaks in the 600–900 cm−1region are slightly wider when the SZYO20 sample is wetter. When the hydration level of SZYO20 sample is higher, the Raman peak shifts towards higher values...
in PEP blocks,respectively (SupportingInformation Figure S2).The P-O-C stretching is also verified at983 cm-1.26 The broad peak at around 3432 cm-1 confirms theexistence of a large number of surface functional hydroxyl groups inthe amphiphilic multiarm copolymer.The FTIR results furthertestify t...
The O-H...O distance of <2.5 Aa in mozartite is one of the shortest hydrogen bonded O...O distances in minerals and leads to a diffuse FTIR absorption peak (stretching mode) polarized parallel to b between 1300 and 1700 cm (super -1) . 展开 ...
from 10 K to 300 K. In Fig.4c, the PL peak (523 nm) at 10 K is as narrow as 6.8 nm, which originates from the emission of a typical strong excitonic recombination31. With the increasing temperature, the intensity of the peak centered at 530 nm (at 10 K) gradual...