Nanostructure and pore size control of template-free synthesised mesoporous magnesium carbonate

Cheung, Ocean; Zhang, Peng; Frykstrand, Sara; Zheng, Haoquan; Yang, Taimin; Sommariva, Marco; Zou, Xiaodong; Strömme, Maria

doi:10.1039/c6ra14171d

Cited by 41 publications

(59 citation statements)

References 73 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The increased pore size of ACP053 after storage for 12 months in open air also suggests that the drop in BET surface area was related to the growth of nanoparticles. The same observation has been noted for other similarly structured materials, such as mesoporous magnesium carbonate and HPACC [33,53]; their stability was increased by loading them with guest molecules such as additives or pharmaceuticals. We have also studied the stability of ACP053 in de-ionized water.…”

Section: Stability Of Acpssupporting

confidence: 74%

Highly Porous Amorphous Calcium Phosphate for Drug Delivery and Bio-Medical Applications

et al. 2019

Self Cite

View full text Add to dashboard Cite

Amorphous calcium phosphate (ACP) has shown significant effects on the biomineralization and promising applications in bio-medicine. However, the limited stability and porosity of ACP material restrict its practical applications. A storage stable highly porous ACP with Brunauer–Emmett–Teller surface area of over 400 m2/g was synthesized by introducing phosphoric acid to a methanol suspension containing amorphous calcium carbonate nanoparticles. Electron microscopy revealed that the porous ACP was constructed with aggregated ACP nanoparticles with dimensions of several nanometers. Large angle X-ray scattering revealed a short-range atomic order of <20 Å in the ACP nanoparticles. The synthesized ACP demonstrated long-term stability and did not crystallize even after storage for over 14 months in air. The stability of the ACP in water and an α-MEM cell culture medium were also examined. The stability of ACP could be tuned by adjusting its chemical composition. The ACP synthesized in this work was cytocompatible and acted as drug carriers for the bisphosphonate drug alendronate (AL) in vitro. AL-loaded ACP released ~25% of the loaded AL in the first 22 days. These properties make ACP a promising candidate material for potential application in biomedical fields such as drug delivery and bone healing.

show abstract

Section: Stability Of Acpssupporting

confidence: 74%

Highly Porous Amorphous Calcium Phosphate for Drug Delivery and Bio-Medical Applications

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…Figure 2. The general morphology of MMC (Figure 2a), MMC-Si ( Figure 2c) and MMC-Al (Figure 2e) resemble that previously shown by Cheung et al [11] .The SEM images of calcined NiO/MgO, NiO/MgO-Si and NiO/MgO-Al catalysts showed that the morphology of the MMC support was retained during Ni impregnation and calcination.…”

Section: X-ray Photoelectron Spectroscopy (Xps)supporting

confidence: 83%

“…In all cases, the MMC based supports as well as the NiO containing catalysts appeared to be irregularly shape particles constructed with an assembly of nanometer-sized particles. As discussed in previous studies, the porosity of MMC arises from the space between these nanometer-sized particles [11] . The presence of NiO could also be clearly observed.…”

Section: Intensitymentioning

confidence: 75%

“…The synthesis of MMC have previously been described in detail [11] . In summary, 20 g of MgO was mixed with 300 mL of MeOH, the mixture was then pressurized with 4 bar of CO2 and left to react under stirring for 24 h at room temperature.…”

Section: Preparation Of MMC (-Al -Si)mentioning

confidence: 99%

“…The synthesis results in a colloidal suspension of nanoparticles. These nanoparticles form a highly porous amorphous solid with a surface area of up to over 700 m 2 /g [10,11] upon drying into a powder form. In this paper MMC doped with Al2O3 and SiO2 nanoparticles where impregnated with NiNO3.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Novel Ni/MgO Catalysts from Mesoporous MgCO3 for Highly Efficient CO Methanation: Effects of Al and Si Stabilization

Hao¹,

Vall²,

YuFei³

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

Methanation of syngas is a possible way to produce synthetic natural gas. Ni has been proven to be a good and cost-effective catalyst for this reaction. Here we have synthesized Ni/MgO catalyst using mesoporous magnesium carbonate (MMC) as a precursor. Addition of Al2O3 and SiO2 to MMC were made and the different MMC based materials were then impregnated with Ni(NO3)2 and calcined to generate the catalysts. Addition of Al2O3 showed an improvement in the catalytic performance compared to the NiO/MgO catalyst. The catalyst containing Al2O3 had a CO conversion close to 100 % at 350 °C and a high selectivity and yield for CH4. The better performance of the aluminum containing catalyst was believed to be an effect of a better dispersion of Ni at the surface of the catalyst

show abstract

Unravelling the Growth Mechanism of Nanotorous ZrO2-NiO Binary Composite and its Electrochemical Study for Supercapacitor Application

Abhisek,

Vhatkar,

Mathew

et al. 2024

J Clust Sci

View full text Add to dashboard Cite

Nanostructure and pore size control of template-free synthesised mesoporous magnesium carbonate

Abstract: The structure of mesoporous magnesium carbonate (MMC) first presented in 2013 is investigated using a bottom-up approach.

Cited by 41 publications

References 73 publications

Highly Porous Amorphous Calcium Phosphate for Drug Delivery and Bio-Medical Applications

Highly Porous Amorphous Calcium Phosphate for Drug Delivery and Bio-Medical Applications

Novel Ni/MgO Catalysts from Mesoporous MgCO3 for Highly Efficient CO Methanation: Effects of Al and Si Stabilization

Unravelling the Growth Mechanism of Nanotorous ZrO2-NiO Binary Composite and its Electrochemical Study for Supercapacitor Application

Contact Info

Product

Resources

About