这个工作直接观测到了电极表面几种中间体的演化过程,进一步升入了解反应机理。 图13 Time-resolved IR spectra with 1.5 s intervals for 10 min The spectra were taken in 0.1 M KHCO3 D2O electrolyte at -0.94 V on (a) ED-Cu,with baseline spectrum at -0.37 V in CO2 saturated electrolyte[17] 3.1...
In this paper we present the results of a Fourier self-deconvolution and least-squares analysis of the MIR spectral data for KZn1−xCoxF3. An interpretation is given in terms of low-lying electronic transitions within the 4T1g(4F) ground manifold of Co2+ ions and their vibronics. We ...
The IR spectrum is collected with the interval times of 0 min, 3 min, 4 min, 5 min, 10 min, 15 min and 20 min for HCN-A, and every 5 min interval for HCN under illumination. Fig. 5. (a) Calculated free energy diagram for the reduction of CO2 to CH3CHO on the HCN and HCN-...
Figure 1.(a) 单原子结构 Figure S3. Fourier transform infrared spectroscopy (FT-IR) spectrum of the as-synthesized FePc. Figure 1.(e) HAADF-STEM images of 这种FePc分子的结构可以用红外表征(FT-IR)来证明,根据红外峰,比如说727、1080和1117 cm−1处的峰是C-H键振动,1162 cm−1是C-N和1331...
whose intensities increase almost linearly with the bilayer number (inset of Fig.2d), indicating a successful step-by-step and controllable growth process. Fourier-transform infrared (FTIR) spectrum (Supplementary Fig.5) of the as-prepared (LDH/FAS)nmembrane exhibit strong absorption bands at 1640...
课题组已在J.Am.Chem.Soc.上在线发表了题为“Photocatalytic CO2 conversion of M0.33WO3 directly from the air with high selectivity:insight into full spectrum induced reaction mechanism”的研究相关成果。文章的第一作者为武汉理工大学副教授吴晓勇和博士研究生李源,张高科教授为第一通讯作者,武汉理工大学赵焱...
FT-IR spectroscopy was carried out on a PerkinElmer Two spectrometer using an attenuated total reflectance plate. Air was used as a background spectrum. Samples were prepared by drop-casting octane suspensions of the Cu NCs directly onto the attenuated total reflectance plate and leaving to air-dr...
1c). FTIR spectrum further verified the absorption of PEI on sawdust (Fig. S1). The characteristic absorption bands at 3447 cm−1 are ascribed to the stretching vibration of hydroxyl group in cellulose, hemicellulose and lignin, and the bands at 3417 cm−1 are ascribed to N–H ...
An alternative interpretation of the spectrum as asymmetry doubling of aK=1←1 rotational hot band for a bent geometry is also considered. This latter interpretation is more consistent with the data and predicts a CO2bend angle in the complex forK=1 between 25° and 30°. Linewidths for the...
DFT计算和in situ FT-IR结果表明,在光催化转化CO2反应中,M0.33WO3样品中的W5+位点在活化CO2分子的同时,也活化了水分子。光催化剂中的碱金属与W5+协同作用,增强了其宽谱光驱动的光催化转化CO2的活性。并通过介电函数计算和光催化条件实验的结果,探索了近红外光诱导的光催化还原CO2机理,结果证实近红外光诱导的小...