Synthesis and characterization of ZnAl-NO3(-CO3) layered double ...
2019年2月15日 · ZnAl-NO 3 (CO 3) LDH are introduced as drug delivery systems for simvastatin. Drug intercalation, surface bonding and release behavior are studied in different synthesis processes. Reciprocal behavior of simvastatin and LDH structure is modeled. NO 3 -based LDH showed sustained drug delivery and higher drug loading compared to that of CO 3 one.
Effect of MgO, Mg-Al-NO3 LDH and calcined LDH-CO3 on …
2020年7月30日 · The objective of this research is to investigate the different effects of MgO, nitrate intercalated LDH (Mg-Al-NO 3 LDH) and calcined natural LDH-CO 3 on the alkali activated fly ash and slag blends (AAFS) in terms of chloride resistance. Mg-Al-NO 3 LDH was successfully synthesized with the co-precipitation method.
Controlled preparation of Ni–Al LDH–NO3 by a dual-anion
2019年3月30日 · Ni–Al LDH–NO 3 was successfully synthesized by a dual-anion intercalating strategy of OH − and NO 3 − during a facile co-precipitation process. The presence of nitrate anions with low charge densities benefits to the enlargement of interplanar spacing for Ni–Al LDH compared to pristine carbonate anions, accelerating the diffusion of ...
Structural transformation of layered double hydroxides: an in …
2018年2月21日 · In this report, we applied in situ transmission electron microscopy (TEM) to extensively characterise the thermal progressions of nickel-iron containing (Ni-Fe) LDH nanomaterials. The combinative...
Memory Effect of MgAl Layered Double Hydroxides Promotes …
2023年1月25日 · The electropositive MgAl LDHs promote the spontaneous coordination of NO 3 − into anionic vacancies of LDH interlayers via memory effect, rehydrating to original NO 3 −-MgAl LDHs structure and accelerating LiNO 3 dissolution.
Delamination and restacking of a layered double hydroxide with nitrate ...
A layered double hydroxide (LDH) with nitrate as the counter anion (LDH–NO3 with Mg/Al = 3) was, for the first time, successfully delaminated in formamide under ultrasonic treatment. Atomic force microscopy (AFM) images showed that a large part of the LDH was delaminated into single and double brucite layers
New findings on the contribution of Mg-Al-NO3 layered
2023年1月1日 · The main goal of this study is to determine how the synthesized Mg-Al-NO 3 LDHs influence the microstructure and hydration of paste samples and also to investigate whether the LDHs are of any benefit in the uptake of Cl − ions in cement-based mixtures. LDH powders were first characterized by SEM-EDX, XRD and Thermogravimetric Analysis (TGA ...
正丁醇/水混合溶剂中一步合成NO_3-LDH的研究-【维普期刊官网 …
摘要 以尿素为沉淀剂,正丁醇/水混合液为溶剂,采用水热法直接合成层状双金属氢氧化物Zn Al-NO_3-LDHs。 通过X射线衍射 (XRD)、傅里叶变换红外光谱 (FT-IR)、扫描电镜 (SEM)和元素分析 (CHN)等对所得样品进... 展开更多 以尿素为沉淀剂,正丁醇/水混合液为溶剂,采用水热法直接合成层状双金属氢氧化物Zn Al-NO_3-LDHs。 通过X射线衍射 (XRD)、傅里叶变换红外光谱 (FT-IR)、扫描电镜 (SEM)和元素分析 (CHN)等对所得样品进行表征,证明在尿素存在条件下,NO-3进 …
层状双金属氢氧化物(LDH)的剥离及自组装构筑花状多级结构-材料 …
2018年10月21日 · 对制备的 MgAl-NO3-LDH 和 MgAl-CO3-LDH 的剥离行为进行研究，探讨了溶剂特征、 剥离方法等对其剥离行为的影响。 以表面活性剂为软模板，在水热条件下制备了三维花 状多级结构层状双金属氢氧化物，探讨了模板剂种类、模板剂浓度、反应温度、反应时 间、层板金属离子组成等对材料组成、结构和形貌的影响。 利用 XRD、SEM、TEM、 AFM、FT-IR、TG、BET 等对制备的材料进行表征。 得到以下主要成果： 1）以硝酸镁、硝酸铝、氨水为原料，采 …
NiFe‐NO3 Layered Double Hydroxide as a Novel Anode for …
2024年12月4日 · This study marks the first reported application of an LDH, specifically NiFe-NO 3 LDH, as conversion anode material in a sodium half-cell, to the best of our knowledge. Despite an initial loss in capacity, the material demonstrates notable stability, retains a high specific capacity even after 50 discharge/charge cycles (~500 mAh/g).