In the present study, a lab-scale for closed thermochemical heat storage reactor design is performed for seasonal thermochemical energy storage using magnesium chloride hexahydrate based on...

2011年5月1日 · In this research, the thermal decomposition mechanisms and the intermediate products of MgCl 2 ·6H 2 O and MgCl 2 ·H 2 O were studied by thermal gravimetric analysis (TGA), XRD, SEM and chemical analysis.

2021年1月1日 · In this work, the reaction mechanism, dehydration kinetics, and equilibrium behaviors of MgCl 2 ·6H 2O are studied in detail with the help of thermal analytical measurements and morphological observations.

Download scientific diagram | TGA curve for the MgCl2/NaCl/KCl eutectic composition for the 50 th -Cycle IV. CONCLUSION Commercial grade inorganic PCMs have been tested as single salts as well...

2018年3月1日 · Considers eutectic molten salts of NaCl-KCl-ZnCl 2 and NaCl-KCl-MgCl 2 as HTF. Measured properties include melting point, heat of fusion, and heat capacity. Provides experiences and details for molten salt heat capacity measurement. Correlations and predictions of heat capacity versus temperature included.

2011年5月1日 · The thermal decomposition mechanisms and the intermediate morphology of MgCl2·6H2O and MgCl2·H2O were studied using integrated thermal analysis, X-ray diffraction, scanning electron microscope...

选择无水氯化镁（MgCl 2）作为氨吸附的活性促进剂，并根据MgCl 2 负载量（以Mg计为3-20 wt％）比较分析循环吸附性能。 采用TGA、BET、SEM、EDX和NH 3 对吸附剂的理化性质进行分析 -TPD。 通过变温（TSA）、变压（PSA）和变压（PTSA）模式突破测试分析了吸附和解吸特性。 经证实，在所制备的吸附剂中，负载 10 wt% Mg 的吸附剂（AC-Mg (10)）在循环吸附过程中表现出最佳性能，在 TSA 模式下的氨容量为 2.461 mmol NH 3 /g。 尽管 PSA 模式下的容量较 …

2010年6月15日 · In this work, the thermal decomposition process was studied by thermal gravimetric analysis (TGA) and XRD. In addition, the mechanism and kinetics of thermal decomposition of MgCl 2 × 6H 2 O were studied by the Doyle, …

通过X射线衍射（XRD），傅立叶变换红外光谱（FTIR）和热重分析（TGA）对MgCl 2 ·6NH 3产物进行表征。 XRD研究表明，采用Mg 2 Si / NH 4 Cl质量比为1：2.8的实验制得的固体产物为纯相和高度结晶的MgCl 2 ·6NH 3。 FTIR光谱显示出配位氨分子的特征谱带。 另外，通过TGA研究了产物的氨解吸行为，并在本文中给出了其解吸反应。 综上所述，本文提供了一种新的大规模低成本合成方法来生产MgCl 2 ·6NH 3，该方法已经成为一种有趣的功能材料。

MgCl2.2H2O Magnesium chloride dihydrate was created by spray-drying a magnesium chloride solution at 140°C . TGA measurements confirmed that the magnesium chloride compound contained at...

2022年6月25日 · Anhydrous magnesium chloride (MgCl 2) was selected as an active promoter for ammonia adsorption, and cyclic adsorption performance was comparatively analyzed according to MgCl 2 loading (3–20 wt% in Mg basis). The physical and chemical properties of the adsorbents were analyzed by TGA, BET, SEM, EDX, and NH 3 -TPD.

2018年5月5日 · From the tests on the performances of MgSO 4 ·7H 2 O to store solar energy and the result analyses in TGA-DSC method, it has been showed that MgSO 4 is almost impossible to hydrate directly with moist air and is applicable to closed packed bed [35].

The activation of MgCl2 is an essential step for preparing performant Ziegler-Natta (ZN) catalysts for olefin polymerization, either by mechanical grinding of pristine MgCl2 or by chemical ...

The thermal decomposition of MgCl2·6H2O (non-dried and partly dried) and the kinetics of the process were studied by DTA, TG, DTG, IR, X-ray diffraction and chemical analysis of Mg and Cl. The reactions which occurred in the course of the thermal analysis were identified as dehydration (in steps), thermal hydrolysis of MgCl2·H2O and ...

2023年4月2日 · This laboratory study investigated the mechanism of chemical reactions of ordinary Portland cement (OPC) and high-volume fly ash (HVFA) concrete with concentrated MgCl2 solution under room temperature. OPC and HVFA mortar specimens were immersed in the 29.8 wt.% MgCl2 solution for 14, 28, and 56 days after 28-day moist curing.

Nano-forsterite powder with natural silica sand and magnesium powder as the raw materials have been succesfully synthesized. The silica sand was purified followed by a coprecipitation process to...

2011年8月22日 · MgCl2·nEtOH adduct solutions were prepared with various EtOH/MgCl2 molar ratios for preparation of the MgCl2-supported and MgCl2-SiO2-supported catalysts in order to investigate the effect on polymerization performance of both catalyst systems.

2025年2月15日 · We investigated the heat storage performance of MgCl 2 •6H 2 O and NH 2-MIL-88(Fe)/MXene/MgCl 2 composites using TGA (Fig. 6 a) coupled with DSC (Fig. 6 b). The TGA study showed that both the pure and composite materials …

2021年10月1日 · A new eutectic chloride molten salt, MgCl2-KCl-NaCl (wt% 45.98–38.91–15.11), has been recognized as one of the most promising high-temperature heat transfer fluids (HTF) for both heat transfer and …

Four different preparation methods for the “SS + MgCl2” mixtures were compared, with a variation of either the SS (raw or crushed) or the MgCl2 form (powder or solution). The samples were...