Raman study of phonons in Sr Mn O and Sr Mn O layered manganitesGuedes, IMitchell, J FArgyriou, DGrimsditch, M
1. 这个峰一般来说是 C=O 双键的峰,可是你说是无机物,很有可能是某一 个基团的倍频峰,看看 820 左右或者是某两个峰的叠加。 2. 也有可能是你在测量过程当中由于激光引起的碳化物质。还有一种可能 就是 C=C. 3. 拉曼在 1610-1680 波数区间有 C=N 双键的强吸收 十一、 1 红外分析气体需要多高的分辨率?
Thus, the 3mn − 3 optical modes are divided between intermolecular translational (3m− 3), free and/or restricted molecular rotations (mNfr, where Nfr is the number of rotational degrees of freedom of the molecule), and the intramolecular vibrations or fundamentals (Nf = 3mn − 3m ...
我做含锰催化剂的Raman表征,得到的谱图在650左右有拉曼峰。我在一个数据库里查到Mn-O拉曼峰就在650左右(无论什么价态的锰),可是又在一篇文献上看到不同价态的锰拉曼峰位置不同。所以请这方面的高手给予指点!谢谢!
In PrMnO 3 and NdMnO 3, the frequency softenings are partly attributed to an orbital-spin-phonon coupling whereas in TbMnO 3 and DyMnO 3, the relatively weak frequency shifts are rather attributed to an expansion of the Mn−O bond lengths. On the other hand, the frequencies of TbMnO...
Raman spectra of (Mn, Co)-codoped ZnO films were investigated as functions of laser line and temperature. It is shown that the Raman shifts for different phonon modes exhibit redshift with temperature increasing, which can be attributed to the anharmonic effect in the material. Strong resonant...
Investigations of EPR parameters for Cr3 and Mn4 ions in anatase (TiO2) crystals The dependence of the thermodynamic properties of solid solutions in the system PbO--ZrO/sub 2/--TiO/sub 2/ on temperature and solution composition has bee... Wu, Xiao-Xuan,Feng, Wen-Ling,Zheng, Wen-Chen ...
Llaver M, Oviedo MN, Quintas PY, Wuilloud RG (2021) Analytical Methods for the Determination of Heavy Metals in Water—Remediation of Heavy Metals. In: Inamuddin Ahamed Lichtfouse MIE, Altalhi T (eds) Remediation of heavy metals. Environmental chemistry for a sustainable world. Springer Internat...
Fig. 2. a: Raman spectra of (a) GO, (b) MnFe2O4 NPs and (c) GO-MnFe2O4 nanohybrid. Reprinted with permission by Elsevier Kumar et al. (2014). b: Raman spectra (A) graphite (B) graphene oxide (C) β-CDs-GO (D) bare Fe3O4 NPs (E) β-cyclodextrin (CD) (F) β-CDs-...
et al. Quantitative analysis of SERS spectra of MnSOD over fluctuated aptamer signals using multivariate statistics. Nanophotonics 8, 1477–1483 (2019). Article Google Scholar Sricharoen, N. et al. MCR-ALS with sample insertion constraint to enhance the sensitivity of surface-enhanced Raman ...