FTIR and Raman spectroscopic analysis indicated that increasing doping of CrO3 changes the structural network by increasing the number of nonbridging oxygens (NBO) within the glassy matrix.

2024年11月15日 · The spectroscopic properties of chromium-doped BAG (Boric Acid Glass), using Absorption, Raman, and FTIR spectra have been studied. We have investigation the spectral nature of (CrO 3: BAG) synthesized glasses.

1992年2月1日 · The activation of crystalline and amorphous chromia surfaces by thermal pretreatment in argon and oxygen adsorption at 473 K has been studied by diffuse reflectance FTIR and Raman spectroscopy.

FTIR studies show a broadening of peaks at 3400 cm−1 as doping concentration is increased. The broad peak in XRD patterns shows the glassy nature of the sample.

2022年1月12日 · The various functional groups in CrO3 nanoparticles were ascertained by FTIR analysis. Antimicrobial study of CrO3 NPs showed excellent antibacterial activity against various bacterial strain...

FTIR and Raman spectroscopic analysis indicated that an increasing doping of CrO3 changes structural network by increasing number of nonbridging oxygens (NBO) within glassy matrix. These results revealed that bands toward low frequency side endorsed to the vibration of Ba2+ metal cation, bending vibration of Si-O-Si and bonding formation of ZrO2.

2023年8月12日 · 将不同浓度的CrO3溶解在水中形成重铬酸。 采用透射电子显微镜、能量色散 X 射线光谱 (EDX) 等多种分析技术，研究了重铬酸浓度对 MWCNT 织构特征、元素组成、缺陷、石墨化程度和表面化学变化的影响。

In situ FTIR spectra of adsorbed CO on CrO 3 /SiO 2 catalysts have been investigated at elevated temperatures to elucidate the nature of the species formed during the reduction process with CO. The results show the formation of three species: bicarbonates, monodentate carbonate and inorganic carboxylate.

2022年9月26日 · The identification of these compounds was done by carefully identifying the Cr-O-Cr anti-symmetric vibrations, the symmetric stretching of the CrO4 tetrahedra, and the stretching vibrations of the planar CrO3 structure for the chromium trioxide.

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