Layered intercalated functional materials based on efficient utilization of magnesium resources in China

Abstract

Mg-based layered intercalated functional materials of the layered double hydroxide type are a significant class of magnesium compounds. Based on long-term studies of these materials in the State Key Laboratory of Chemical Resource Engineering in Beijing University of Chemical Technology, two principles of "using the intended application of a material as a guide to its structure design and synthesis process" and "the design of controlled intercalation processes in the light of future production processing requirements" have been developed. To achieve these objectives, the composition of the host layers and guest interlayer anions was tailored at the microlevel, while the mesostructure and macrostructure were controlled to fabricate different kinds of Mg-based layered intercalated functional materials. These materials have diverse applications in key areas such as catalysis, the environment, and construction, and as polymer additives. Therefore, China's magnesium resources may be utilized more efficiently for the benefit of society.Mg-based layered intercalated structure, functional material, magnesium resource, efficient utilization, structure design

Layered double hydroxide-based nanomaterials for biomedical applications

“…Binary LDHs, such as MgAl-LDH, CoMn-LDH, and NiFe-LDH, are composed of only one divalent and one trivalent metal cations. 11,52,53 The physicochemical properties of binary LDHs can be customized by introducing a third or fourth cation, resulting in the formation of ternary or quaternary LDHs, such as MgAlGd-LDH, CoFeMn-LDH and MgAlGdYb-LDH. 47,54,55 Considering the charged layered structure of LDHs, they can serve as an ideal platform to construct LDH-based nanocomposites.…”

“…10 In 1999, they further discovered the intercalation properties of LDHs and then successfully constructed a series of LDH-based advanced functional materials with supramolecular intercalation structures. 11 Since the mid-20th century, LDHs have been extensively explored and shown great potential in a variety of applications, including optics, energy storage and conversion, environmental remediation, and catalysis, by virtue of their special layered structure, tunable chemical composition and appealing physicochemical properties (e.g., light, thermal, magnetic and ultrasonic response). [12][13][14][15][16][17][18][19][20][21] Since Choy et al proposed the concept of ''bio-ceramic nanohybrids'' in 1999, 22 multifunctional nanomaterials with a layered structure have been greatly explored for biomedical applications.…”

Ionothermal Synthesis of Novel Layered Magnesium Phosphate and its Tribological Properties as Grease additives

“…In ocean water, the magnesium content is ~0.13%, and it ranks third in order of abundance (if hydrogen and oxygen are excluded). [18] It would be more economical to replace some or all MoS 2 with layered magnesium phosphate (MgP). We previously explored layered potassium magnesium (MgKPO 4 • H 2 O) as an effective and environmentally friendly solid lubricant using crystallographic data and strict filtering criteria.…”

A BiOBr/Co–Ni layered double hydroxide nanocomposite with excellent adsorption and photocatalytic properties

“…The general formula for this layered structure is written as respectively; A n-is an interlayer compensating anion which could be exchanged by inorganic or organic anions. The x value normally ranges between 0.2-0.4 [1][2][3][4][5][6][7][8] . Due to the special layered structure and a flexible modification of chemical compositions,…”

“…The x value normally ranges between 0.2-0.4. [1][2][3][4][5][6][7][8] Due to the special layered structure and ability for exible modication of chemical compositions, LDHs possess signicant potential in different elds, such as catalysis, photocatalysis, adsorption and electrochemistry. [9][10][11][12] Specially, with the increasing development of photocatalysis, LDHs have aroused much attention in photocatalytic applications.…”