Absorption characteristics and rheological properties of …
2024年9月15日 · The HBA was synthesized through the quaternization of TEPA with HCl, and the reaction mechanism based on the ratio of HCl was investigated using proton nuclear magnetic resonance (1 H NMR). Furthermore, physicochemical properties such as molar volume and free volume arising from the hydrogen-bonded complex structure were analyzed based on the ...
Novel 2-amino-2-methyl-1-propanol-based biphasic solvent for …
2023年5月1日 · TEPA could effectively trigger the phase separation of the biphasic solvent. The biphasic solvent realized 78.1% reduction in sensible heat compared to 30 wt% MEA. The regulatory mechanism of TEPA was verified by 13 C NMR and quantum calculations.
Experimental and theoretical investigation of a novel multi-amino ...
2024年12月1日 · In this study, a novel multi-amino groups functionalized ionic liquids [TEPAH] [Lys] was synthesized and dissolved in NPA and H 2 O to achieve high absorption loading with low energy consumption.
CO2 Capture Performance and Oxidative Degradation of ...
Detailed information about isolation and identification of TEPA components, CO 2 capture capacities, amine efficiencies of the TEPA-based sorbents at 40 °C and 13 C NMR, FT-IR, and GC spectra of T-BRN and T-IPZ obtained during deterioration in oxidation
Liquid marble-derived solid-liquid hybrid superparticles for CO2 ...
2019年4月23日 · Distinctive features of such a structure are multifold: the highly viscous TEPA is compartmentalized into tiny droplets, achieving a high surface-to-volume ratio; the accessibility of TEPA is...
热稳定性增强的四亚乙基五胺/二氧化硅吸附剂，用于高效CO 2 捕 …
我们对液态13 C NMR的仔细分析揭示了EB功能化TEPA（EB-TEPA）的胺态分布。 尽管由EB官能化引起的叔胺部分的增加减少了CO 2吸附能力，0.64EB-TEPA（即用EB功能化的TEPA / TEPA / EB摩尔比为1：3的TEPA）/ SiO 2在使用CO的连续10个吸附/解吸过程的连续循环中显示出优异的长期稳定性在干燥的CO 2 / N 2（15/85 mol / mol）进料条件下，2摆动能力为2.0 mmol CO 2 g –1。 同样，第一性原理计算通过XRD测量确定了改性TEPA分子的构型，支持了CO 2轻松进 …
1 H-NMR spectra of (a) rGO-(TEPA) BZ and (b) rGO-(NH2)-BZ.
The effect of rGO-TEPA concentration on the morphology, wettability, thermal stability, cytocompatibility, cytotoxicity, and anti-biofilm activity of the nanofibrous membranes was extensively ...
¹H-NMR spectra of (A) H40-OH, (B) H40-TEPA, (C) H40-TEPA …
Download scientific diagram | ¹H-NMR spectra of (A) H40-OH, (B) H40-TEPA, (C) H40-TEPA-PEG, (D) H40-TEPA-PEG-MUC1 in DMSO-d6. from publication: MUC1 aptamer-tethered H40-TEPA-PEG...
<br>使用 TEPA 作为活化剂提高物理溶剂双相吸收剂的捕集性能， …
通过13C NMR表征和量子化学计算详细分析了TEPA的增强机制，并根据TEPA的独特结构描述了134种可能的TEPA衍生产物。 TEPA 衍生产品的较高极性以及 TEPA 衍生产品与 H2O 之间更强的氢键证实了 TEPA 不仅是优异的捕获负载活化剂，而且是有效的相分离促进剂。 从最本的实验条件着手，发现新的现象。 该论文可能会对往后光催化制H2的温度条件重新考量，也对光热催化提供理论支持。 好想法！ 不错！
氨基甲酸酯型有机催化剂的制备及应用 - finechemicals.com.cn
利用碳酸乙烯酯（EC）和四乙烯五胺（TEPA）原料，通过加成反应制备了用于酯交换合成碳酸甲乙酯（EMC）的氨基甲酸酯型有机催化剂（TEPA-EC）；以FTIR、NMR对其结构进行了表征，分析了催化机理；考察了合成和使用条件对催化效率的影响，对TEPA-EC的稳定性和耐水性进行了测试。 结果表明，TEPA-EC中的叔胺基甲酸羟乙酯基团通过协同氢键催化酯交换反应；EC与TEPA按摩尔比5∶1在140 ℃反应2 h制得的TEPA-EC催化剂具有较高的催化活性。