最近看文献发现在Fe的EPR表征分析中都是分析Fe3+的，有个疑问，难道EPR不能表征出Fe2+?!请高手指教啊...
Fe2Nx@TiOx催化剂的(121)晶面对应的是Fe2N,峰值对应的能量偏向高能级,这是由氨气催化造成的但缺陷的形成所导致的。EPR测试证明在g=2.0074有明显的EPR信号,有未配对的孤对电子说明N缺陷的存在。氮气吸附脱附测试证明Fe2Nx@TiOy-60由...
Six inequivalent Cu2+EPR spectra were observed at 4.2 K in single crystals of FeSiF6⋅ 6H20. The estimated parametersgz∼2.38 and θ∼40°, where θ is the angle between the ioniczaxis and thecaxis, differ from those measured in crystals of similar structure. These differences have...
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▲Figure 2. (a) Effects of TBA on the degradation of MB in FeOCl/MoS2Fenton-like system; (b) EPR spectra of DMPO-OH; (c) PL spectra of HBA adducts (inset: PL spectra for 8 min) in FeOCl, MoS2, FeOCl/MoS2Fenton-like system; (d) LSV curves of FeOCl/MoS2with or without H2O2and...
X-band (≈9.5 GHz) electron paramagnetic resonance (EPR) studies of the VO2+ ion are carried out on a single crystal of the Tutton salt Fe(NH4)2(SO4)2 · 6H2O (FASH) at 295, 80, and 4.2 K. The data indicate two physically-equivalent VO2+ sites in the unit cell, each consistin...
由压电催化活化PDS降解双酚A实验可知,铁酸铋纳米片压电活化PDS展现出优异的催化活性。淬灭实验和EPR分析表明,SO4•−和 •OH是降解双酚A的主要活性物种。 ▲Fig.3.(a) Adsorption and activation of S2O2-8 and (b) activation pa...
The electron paramagnetic resonance (EPR) spectra ofK3Cu3Fe2F15consist above 85 K of a superposition of two Lorentzians with different intensities,T-dependences, linewidths, andg-factors. The broad line shows an antiferromagnetic (AFM) behavior and the narrow one shows a paramagneticlike behavior....
D. EPR of Cr2 þ in II-VI lattices. Phys. Rev. B 9, 2051–2072 (1974). 46. Lebecki, K. & Twardowski, A. The role of Jahn-Teller effect on the magnetic properties of Fe-based semimagnetic semiconductors. Solid State Commun. 80, 377–381 (1991). 47. Twardowski, A., ...
Although these centers are separated by only 12 Angstrom according to the X-ray crystal structure, no magnetic coupling effects are detected on their EPR spectrum in the NADH-reduced state of the enzyme in which both centers are paramagnetic. In this paper, we demonstrate that the peculiar ...