A facile method for in situ growing nano-flaky γ-Al2O3 on the surface of Al–Si alloy sphere

Liu, Gonggang; Ye, Hongqi; Yanni, Dai; Yu, Linyu; Jiang, Heng; Zhou, Yonghua; Han, Kai

doi:10.1016/j.jallcom.2015.05.222

Cited by 10 publications

(7 citation statements)

References 33 publications

(37 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to the strong dependence of the electronic structure, the chemical reactivity, and the surface energy of Al 2 O 3 on its morphology, many efforts have been carried out to develop nanosized Al 2 O 3 with a controlled size and morphology . In particular, mesoporous γ‐Al 2 O 3 materials with distinct morphology, such as nanospheres, flower‐like, urchin‐like, nanoflakes, nanosheets, and nanorolls have been fabricated by using both template‐free and template‐based methods. Despite some success, there is still a strong need for the development of new strategies for fabricating mesoporous Al 2 O 3 with controlled morphology, pore size, and crystallinity.…”

Section: Introductionmentioning

confidence: 99%

Biomolecule‐Assisted Synthesis of Hierarchical Multilayered Boehmite and Alumina Nanosheets for Enhanced Molybdenum Adsorption

Saptiama

Kaneti

Yuliarto

et al. 2019

Chemistry A European J

View full text Add to dashboard Cite

The effective utilization of various biomolecules for creating a series of mesoporous boehmite (γ‐AlOOH) and gamma‐alumina (γ‐Al2O3) nanosheets with unique hierarchical multilayered structures is demonstrated. The nature and concentration of the biomolecules strongly influence the degree of the crystallinity, the morphology, and the textural properties of the resulting γ‐AlOOH and γ‐Al2O3 nanosheets, allowing for easy tuning. The hierarchical γ‐AlOOH and γ‐Al2O3 multilayered nanosheets synthesized by using biomolecules exhibit enhanced crystallinity, improved particle separation, and well‐defined multilayered structures compared to those obtained without biomolecules. More impressively, these γ‐AlOOH and γ‐Al2O3 nanosheets possess high surface areas up to 425 and 371 m2 g−1, respectively, due to their mesoporous nature and hierarchical multilayered structure. When employed for molybdenum adsorption toward medical radioisotope production, the hierarchical γ‐Al2O3 multilayered nanosheets exhibit Mo adsorption capacities of 33.1–40.8 mg g−1. The Mo adsorption performance of these materials is influenced by the synergistic combination of the crystallinity, the surface area, and the pore volume. It is expected that the proposed biomolecule‐assisted strategy may be expanded for the creation of other 3D mesoporous oxides in the future.

show abstract

Section: Introductionmentioning

confidence: 99%

Biomolecule‐Assisted Synthesis of Hierarchical Multilayered Boehmite and Alumina Nanosheets for Enhanced Molybdenum Adsorption

Saptiama

Kaneti

Yuliarto

et al. 2019

Chemistry A European J

View full text Add to dashboard Cite

show abstract

“…Analysis of samples 734 and 611 cm − 1 , con rming the existence of Al(OH) 3 [25]. It has been reported that Si is essential to form boehmite [19], i.e., the Al(OH) 3 is successfully formed in all precursors.…”

Section: Resultsmentioning

confidence: 69%

Al-Si@Al(OH)3 Nanosheets Composite for Enhanced Efficient Strategy to Synthesize Al-Si@Al2O3 Core-shell Structure

Lin

Chen

Wang

et al. 2021

Preprint

View full text Add to dashboard Cite

Owing to the combined advantages of Al-Si alloy and Al2O3, Al-Si@Al2O3 is widely utilized as a heat storage material, catalyst carrier and what adsorption host. Hence, the preparation of Al-Si@Al2O3 and corresponding precursors is of utmost significance. Herein, Al-Si@Al(OH)3 precursor is investigated and Al(OH)3 nanosheets are in-situ formed on the surface of Al-xSi alloy (x = 10, 20 and 30) in the presence of water. The influence of Si content, diameter of Al-Si particles and heating parameters on morphology and thickness of Al(OH)3 nanosheets is systematically explored using X-ray diffraction, electron microscopy, Fourier transform infrared spectroscopy and N2 adsorption/desorption isotherms. The growth mechanism of Al(OH)3 nanosheets is revealed and a pathway to obtain Al-Si@Al2O3 nanosheets with desired structure and thickness is demonstrated.

show abstract

“…2A 4 ), a broad peak at the lower region of 1000-500 cm À1 of the 185 film-form ZnO/porous alumina photo-catalysts can be attributed186 to the vibration of AlÀ ÀO (Fig. 2A 1 and A 2 )[24,25]. By SEM 187 observation, we could easily find lots of ruleless and schistose 188 structures on AAO matrix, which has approximately 2.5 mm 189 diameter(Fig.…”

mentioning

confidence: 91%

“…[6][7][8][9][10]. Up to now, series of 22 typical techniques have been developed to synthesize nano-oxide 23 semiconductors, including the microwave heating, template 24 technique, wet chemical route, and so on [11][12][13]. For example, 25 Jain et al synthesized protein-capped ZnO nano-particles in 26 aqueous solvent system and it displayed a 90% degradation rate on 27 methylene blue dye in 30 min [14].…”

Section: Introductionmentioning

confidence: 99%

Film-form ZnO/AAO photo-catalysts: Facile synthesis and surface feature-dependent photo-catalytic activity

Wang¹,

Wang²,

Cao

2015

Journal of Environmental Chemical Engineering

View full text Add to dashboard Cite

A facile method for in situ growing nano-flaky γ-Al2O3 on the surface of Al–Si alloy sphere

Cited by 10 publications

References 33 publications

Biomolecule‐Assisted Synthesis of Hierarchical Multilayered Boehmite and Alumina Nanosheets for Enhanced Molybdenum Adsorption

Biomolecule‐Assisted Synthesis of Hierarchical Multilayered Boehmite and Alumina Nanosheets for Enhanced Molybdenum Adsorption

Al-Si@Al(OH)3 Nanosheets Composite for Enhanced Efficient Strategy to Synthesize Al-Si@Al2O3 Core-shell Structure

Film-form ZnO/AAO photo-catalysts: Facile synthesis and surface feature-dependent photo-catalytic activity

Contact Info

Product

Resources

About