mesochannels within the DP-PCs were fully filled with MPNs. The Fourier transform infrared (FTIR) spectrum demonstrated that the stretching vibration peak for the carbonyl group (C=O) in EGCG shifted from 1691 cm−1to 1640 cm−1in MPN@DP-PCs, indicating the presence of strong hydroge...
FTIR analysis The FTIR analysis is used to examine the details in the chemical bond structure of the samples which have shown in Fig.4. The absorption bands under 700 cm-1wavenumber are due to the proximity of O–Sn–O and Fe–O absorption band in the range of 470 cm-1; the band at...
Signature bands for Fe-O (1136 cm) and organic moieties stretching vibrations were confirmed by FTIR spectrum. The point of zero charge was determined as 7.97 which is concordant with the published value for α-Fe2O3. The thermal stability was ascertained by TGA which showed 28% weight loss...
Subsequently, we performed in-situ ATR-FTIR spectra to monitor the temporal H2O2 concentration variation by the peak intensity of 2843 cm−1 in Fe2O3@FeB/H2O2/Air system (Text. S5 and Fig. S11-12), which agreed well with the temporal H2O2 concentration detection results (Fig. 7d). To...
indicating favorable optical properties for photocatalysis. FTIR analysis identified key functional groups, including a significant O-H peak at 3366 cm−1, C-H stretching at 2926 cm−1, and metal-oxygen bonding vibrations at 580 and 461 cm−1, confirming the presence of Cu-O, Fe-...
(N–C), while the N–C peak intensities at Ch.F. are weak (Fig.2A). Mass spectroscopy and NMR (Additional file1: Figs. S52–S57) were employed to investigate these proposed structures, with confirmation from sedimentary tests. The FT-IR spectrum of fresh and reused catalysts reveals the...
Fe203湿凝胶,利用超临界CO2萃取干燥法得到纳米复合含能材料RDX/FeO。利用SEM、FTIR、DSC等对样品的微观形 貌、组分结构和热分解特性进行了研究,并测试了其撞击感度和摩擦感度。结果表明,与传统的简单混合物RDX—FeO,相 比,运用该方法制备的RDX/FeO纳米复合含能材料可在纳米级上将2种物质混合,其组分一致性更好;纳...
FTIR表征是535cm-1处有峰表明铁应该成功负载，貌似不能通过Fe-O键判断出形态吧？XPS分析 原始数据给出...
have O–H in their structure and so this peak belongs to both surface absorbed H2O and the O–H in the formula. The FTIR spectra of carbonyl group in pure citric acid and ascorbic acid has absorption bond in wave number of about 1700 cm–1but interaction with Fe–O bonding moves it to...
The Fourier transform infrared (FTIR) spectroscopy analysis was conducted on a FTIR spectrometer (Nicolet Nexus 470, USA) in the range of 400–4,000 cm−1. Thermogravimetric analysis (TGA) was performed for power samples with a heating rate of 10 °C/min using a thermogravimetric ...