通过原位Raman光谱和XPS分析发现,在OER过程中,F-PTS-NLM催化剂表面形成了NiOOH和FeOOH等金属羟基氧化物物种,这些物种是真正的活性位点。 结合DFT计算,研究者们提出了F-PTS-NLM催化剂在HER和OER过程中的反应机制,即氟掺杂和异质结构的引入优化了催化剂的电子结构,降低了反应中间体的吸附能垒,从而提高了催化效率。
3.3.1 XRD 和Raman 表征 ... 25 3.3.2 SEM及TEM的表征 ... 26 3.3.3 N2 吸附脱附表征 ...
Raman spectroscopyUV/Vis spectroscopyCo-MOF-74 rod like crystals with a length of several hundred micrometers are synthesized by a solvothermal procedure and their interaction with different gases is evaluated for selective gas sensing. We show strongly anisotropic absorption behavior of the Co-MOF-74...
MOF–guest interactionRaman spectroscopyUV/Vis spectroscopyCo-MOF-74 rod like crystals with a length of severdoi:10.1002/anie.201882562Strauss InaMundstock AlexanderHinrichs DominikHimstedt RasmusKnebel AlexanderReinhardt CarstenDorfs DirkCaro Jürgen
CoNi/N/C在2θ=53.1°处有NiCoO的衍射峰,表明CoNi/N/C在热解后产生了NiCoO。FeCoNi/N/C在2θ=51.4°处产生了NiFeO的衍射峰,说明了NiFeO的存在。图2(b)为Raman谱图,Co/N/C、CoNi/N/C和FeCoNi/N/C的I/I的值逐渐降低,说明其石墨化程度D G逐渐增大。
“chemical route” for the activation that does not require applying heat. To the best of our knowledge, no previous study has demonstrated this function of MC, although MC has been popularly used in the pretreatment step prior to the thermal activation process. On the basis of a Raman study...
The μRaman spectra were taken for FeCrAl plates due to the optical microscope limitations. The effectiveness and stability of the prepared structured metal organic framework materials was determined in two ways. The effectiveness of MOF-74 in situ deposition was determined by weighing the washed and...
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Guo, C.; Luo, X.; Zhou, X.; Shi, B.; Wang, J.; Zhao, J.; Zhang, X. Quantitative Analysis of Binary Polymorphs Mixtures of Fusidic Acid by Diffuse Reflectance FTIR Spectroscopy, Diffuse Reflectance FT-NIR Spectroscopy, Raman Spectroscopy and Multivariate Calibration.J. Pharm. Biomed. Anal...
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