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1. Red mud-based catalysts for the catalytic removal of typical air pollutants: A review

Author:
Jiawei Chen; Yao Wang; Zhiming Liu
Source:
Journal of environmental sciences (China) 2023 v.127 pp. 628-640
ISSN:
1001-0742
Subject:
aluminum oxide,   etc   ; air; catalytic activity; humans; nitrogen; oxidation; pollution; solid wastes; structure-activity relationships; sustainable development; value added; volatile organic compounds; China;     Show all 13 Subjects
Abstract:
... Red mud, as a solid waste produced during the alumina production, can cause severe eco-environmental pollution and health risks to human. Therefore, the resourcing of this type of solid waste is an effective way for the sustainable development. This paper reviews the recent progress on red mud-based catalysts for the removal of typical air pollutants, such as the catalytic reduction of nitrogen ox ...
DOI:
10.1016/j.jes.2022.06.027

2. Homogeneous reduction for heavy metals from pickling sludge with aluminum nitride from secondary aluminum dross in aluminosilicate melt ‘solution’ environment

Author:
Hanlin Shen; Bo Liu; Junjie Zhang; Jun Liu; Shengen Zhang
Source:
Journal of cleaner production 2022 v.362 pp. 132358
ISSN:
0959-6526
Subject:
aluminum; aluminum nitride; aluminum silicates,   etc   ; heavy metals; reaction mechanisms; sludge; temperature;     Show all 7 Subjects
Abstract:
... Secondary aluminum dross (SAD) and pickling sludge were hazardous wastes. In this work, aluminum nitride (AlN) from SAD was used to reduce heavy metals from pickling sludge by pyrometallurgy. Reaction mechanism was studied after exploring transformation of heavy metals and AlN during reaction process. It was found that reduction reaction between heavy metals and AlN was homogeneous reduction react ...
DOI:
10.1016/j.jclepro.2022.132358

3. Growth modes of grain boundary precipitate in aluminum alloys under different lattice misfits

Author:
X. Shuai; H. Mao; S. Tang; Y. Kong; Y. Du
Source:
Journal of materials science 2022 v.57 no.4 pp. 2744-2757
ISSN:
0022-2461
Subject:
aluminum; aluminum alloys,   etc   ; quantitative analysis; solutes;     Show all 4 Subjects
Abstract:
... The properties of aluminum alloys are profoundly affected by a rich variety of precipitates. Their precipitation behaviors are often very different from each other due to a wide range of lattice misfits between the precipitates and the matrix. This makes the study of mechanisms of the formation of aluminum alloy precipitates very complex and often controversial. Here, the phase-field crystal metho ...
DOI:
10.1007/s10853-021-06852-8

4. Mathematical modeling of electron density arrangement in CSDG MOSFET: a nano-material approach

Author:
Naveenbalaji Gowthaman; Viranjay M. Srivastava
Source:
Journal of materials science 2022 v.57 no.18 pp. 8381-8392
ISSN:
0022-2461
Subject:
aluminum; aluminum alloys,   etc   ; gallium; industry; semiconductors;     Show all 5 Subjects
Abstract:
... The CMOS technology with MOSFETs below 70 nm node for Semiconductor Industry Association roadmap has outstanding resistance to short-channel effect and improves the scalability of the device. Cylindrical surrounding double-gate (CSDG) MOSFETs have been proposed as a suitable CMOS substitute to reduce the area and power tradeoff. This paper presents mathematical modeling of the electron density arr ...
DOI:
10.1007/s10853-021-06717-0

5. Efficient removal of phosphorus from constructed wetlands using solidified lanthanum/aluminum amended attapulgite/biochar composite as a novel phosphorus filter

Author:
Hongbin Yin; Man Zhang; Li Huo; Pan Yang
Source:
Science of the total environment 2022 v.833 pp. 155233
ISSN:
0048-9697
Subject:
aluminum; aluminum chloride; aluminum phosphate,   etc   ; biochar; environment; lanthanum; pH; phosphorus; solubility; sorption; total phosphorus;     Show all 11 Subjects
Abstract:
... Developing a suitable substrate with high phosphorus (P) sorption capacity, low solubility, and high hydraulic loading for constructed wetlands (CWs) is crucial for their functions. In this study, we used attapulgite and biochar as base materials to prepare a lanthanum/aluminum (La/Al) amended attapulgite/biochar composite as a novel P filter using a one-step drying process and subsequent high-tem ...
DOI:
10.1016/j.scitotenv.2022.155233

6. Counting the water: Characterize the hydration level of aluminum adjuvants using contrast matching small-angle neutron scattering

Author:
Amy Y. Xu; Khaleda C. Rinee; Carrie Stemple; Maria Monica Castellanos; Kunal Bakshi; Susan Krueger; Joseph E. Curtis
Source:
Colloids and surfaces 2022 v.648 pp. 129285
ISSN:
0927-7757
Subject:
aluminum; aluminum hydroxide; aluminum phosphate,   etc   ; adjuvants; freeze-thaw cycles; neutrons; sucrose; thermal stability; vaccines;     Show all 9 Subjects
Abstract:
... Adjuvants are often included in vaccine formulations to enhance and modulate immune responses against pathogenic antigens. Aluminum-based adjuvants are prepared as hydrated colloids and are widely used due to their high efficacy and strong safety record. Previous studies have shown that freezing and thawing of aluminum adjuvants can lead to the aggregation of adjuvant particles, resulting in reduc ...
DOI:
10.1016/j.colsurfa.2022.129285

7. Hydration of Alumina (Al2O3) Toward Advancing Aluminum Particles for Energy Generation Applications

Author:
Mahmuda Ishrat Malek; Chi-Chin Wu; Scott D. Walck; Michelle L. Pantoya
Source:
Colloids and surfaces 2022 pp. 129740
ISSN:
0927-7757
Subject:
aluminum; aluminum hydroxide; aluminum oxide,   etc   ; X-ray diffraction; combustion; energy; microscopy; pH; slurries; spectroscopy; temperature;     Show all 11 Subjects
Abstract:
... Transforming metal particle combustion may require alteration of the metal oxide passivation shell surrounding the metal core. One approach for aluminum (Al) relies on the hydrated form of the metal oxide to incite surface reactions. This study explores the conditions required for hydrating alumina (Al₂O₃) particles and then extends those conditions toward hydration of the Al₂O₃ passivation layer ...
DOI:
10.1016/j.colsurfa.2022.129740

8. Significant reinforcement of mechanical properties in laser welding aluminum alloy with carbon nanotubes added

Author:
Tianyu Xu; Shaowei Zhou; Xiuquan Ma; Han Wu; Lin Zhang; Meng Li
Source:
Carbon 2022 v.191 pp. 36-47
ISSN:
0008-6223
Subject:
aluminum; aluminum alloys,   etc   ; carbon; carbon nanotubes; porosity; tensile strength;     Show all 6 Subjects
Abstract:
... Laser welding 2A12 (Chinese grade) aluminum alloy with carbon nanotubes (CNTs) added was carried out, and the mechanism of CNTs strengthening joints was explored in detail. Firstly, to achieve the same penetration depth, single laser welding and laser welding with CNTs require speeds of 40 mm/s and 60 mm/s respectively. The addition of CNTs increases the welding efficiency by 50%. Furthermore, the ...
DOI:
10.1016/j.carbon.2022.01.033

9. Self-Rolled-Up Aluminum Nitride-Based 3D Architectures Enabled by Record-High Differential Stress

Author:
Apratim Khandelwal; Zhongjie Ren; Shunya Namiki; Zhendong Yang; Nitin Choudhary; Chao Li; Ping Wang; Zetian Mi; Xiuling Li
Source:
ACS applied materials & interfaces 2022 v.14 no.25 pp. 29014-29024
ISSN:
1944-8252
Subject:
aluminum; aluminum nitride,   etc   ; films (materials); silicon nitride; thermal stability;     Show all 5 Subjects
Abstract:
... Aluminum nitride (AlN) continues to kindle considerable interest in various microelectromechanical system (MEMS)-related fields because of its superior optical, mechanical, thermal, and piezoelectric properties. In this study, we use magnetron sputtering to tailor intrinsic stress in AlN thin films from highly compressive (−1200 MPa) to highly tensile (+700 MPa), with a differential stress of 1900 ...
DOI:
10.1021/acsami.2c06637

10. Facile synthesis of hydroxyl aluminum oxalate based on the hydrothermal reaction of boehmite and oxalic acid

Author:
Haiyang Chen; Bo Ren; Meng Liu; Tingwei Qin; Qiang Guo; Guangqi Li; Diansheng Gong; Guanglin Cheng; Junhong Chen; Bin Li
Source:
Colloids and surfaces 2022 v.639 pp. 128344
ISSN:
0927-7757
Subject:
aluminum; aluminum hydroxide,   etc   ; adsorption; boehmite; oxalates; oxalic acid; thermal degradation;     Show all 7 Subjects
Abstract:
... The preparation of hydroxyl aluminum oxalate (HAO) employing the facile hydrothermal reaction of boehmite (γ-AlOOH) and oxalic acid is reported in this work for the first time. The high purity HAO with rhombic shape was successfully prepared at 200 °C for 8 h. The synthesized HAO started thermal decomposition at about 360 °C and the mass loss was up to 52%, both higher than that of aluminum hydrox ...
DOI:
10.1016/j.colsurfa.2022.128344

11. Nanoengineered nanochannels for thermally ionic nanofluidic energy harvesting

Author:
Nguyen Van Toan; Truong Thi Kim Tuoi; Naoki Inomata; Megat Muhammad Ikhsan Megat Hasnan; Masaya Toda; Ioana Voiculescu; Suhana Mohd Said; Takahito Ono
Source:
Energy conversion and management 2022 v.264 pp. 115760
ISSN:
0196-8904
Subject:
aluminum; aluminum oxide,   etc   ; administrative management; electrolytes; energy conversion; oxidation; silicon; temperature;     Show all 8 Subjects
Abstract:
... This work demonstrates thermal-to-electric energy conversion based on ionic nanofluidic transport in nanochannels inducted by a temperature gradient. Two types of highly periodic and high aspect ratio nanochannels have been fabricated in a silicon (Si) substrate and in an aluminium oxide (Al₂O₃) membrane. Silicon nanochannels with diameter of 100 nm and height of 300 μm have been produced by metal ...
DOI:
10.1016/j.enconman.2022.115760

12. Investigation on microstructure and selected properties of aluminum oxide–copper–nickel ceramic–metal composites

Author:
J. Zygmuntowicz; J. Kosiorek; P. Piotrkiewiecz; B. Zacharko; M. Wachowski; W. Kaszuwara
Source:
International journal of environmental science and technology 2022 v.19 no.7 pp. 6531-6540
ISSN:
1735-1472
Subject:
aluminum; aluminum oxide,   etc   ; copper; environmental science; hardness; liquids; microstructure; nickel; technology;     Show all 9 Subjects
Abstract:
... A new ternary system of ceramic–metal composites has been fabricated from alumina, copper, and nickel powders by the slip casting method. The research aimed to avoid copper leaking during the sintering process of the formation while processing the CuNi phase. Five different compositions were examined, differing in the ratio of nickel to copper. Stable slurries with good casting properties were pre ...
DOI:
10.1007/s13762-021-03569-8

13. Microstructure, mechanical properties, and crack formation of aluminum alloy 6063 produced via laser powder bed fusion

Author:
Feng Li; Taomei Zhang; Yiyou Wu; Chao Chen; Kechao Zhou
Source:
Journal of materials science 2022 v.57 no.21 pp. 9631-9645
ISSN:
0022-2461
Subject:
aluminum; aluminum alloys,   etc   ; anisotropy; geometry; microstructure; solidification; tensile strength; thermal stress;     Show all 8 Subjects
Abstract:
... Additive manufacturing provides alternative solutions for complex geometry and design freedom for the customization of aluminum alloys, while the unique microstructure as well as the complex solidification behavior is of great concern due to the severe thermal stress in the layer-by-layer accumulated process. In this work, the effects of laser power, laser scanning speed, and hatch spacing on the ...
DOI:
10.1007/s10853-022-06993-4

14. Novel hybrid composite phase change materials with high thermal performance based on aluminium nitride and nanocapsules

Author:
Lu Wang; Xiangfei Kong; Jianlin Ren; Man Fan; Han Li
Source:
Energy 2022 v.238 pp. 121775
ISSN:
0360-5442
Subject:
aluminum; aluminum nitride,   etc   ; encapsulation; energy; latent heat; nanocapsules; temperature; thermal conductivity; winter;     Show all 9 Subjects
Abstract:
... In this study, a novel hybrid composite PCM was manufactured by adsorbing octadecane into the porous supporting material based on the aluminum nitride (AlN) material, which owned high thermal conductivity. Meanwhile, a layer of nanocapsule PCM was coated on its surface for increasing the latent heat and achieving the PCM encapsulation. The results showed that the AlN efficiently enhanced the therm ...
DOI:
10.1016/j.energy.2021.121775

15. Catalytic activity of Cu/η-Al2O3 catalysts prepared from aluminum scraps in the NH3-SCO and in the NH3-SCR of NO

Author:
Nawel Jraba; Thabet Makhlouf; Gerard Delahay; Hassib Tounsi
Source:
Environmental science and pollution research 2022 v.29 no.6 pp. 9053-9064
ISSN:
0944-1344
Subject:
aluminum; aluminum oxide,   etc   ; catalytic activity; copper; cupric oxide; evaporation; oxidation; pollution; research;     Show all 9 Subjects
Abstract:
... Copper-loaded η-alumina catalysts with different copper contents were prepared by impregnation/evaporation method. The catalysts were characterized by XRD, FTIR, BET, UV-Vis, and H₂-TPR and evaluated, for the first time, in the selective catalytic reduction of NO by NH₃ and in the selective catalytic oxidation of NH₃. The characterization techniques showed that the impregnation/evaporation method ...
DOI:
10.1007/s11356-021-16206-1

16. Optimization of Electrolytes for High-Performance Aqueous Aluminum-Ion Batteries

Author:
Andinet Ejigu; Lewis W. Le Fevre; Amr Elgendy; Ben F. Spencer; Carlo Bawn; Robert A. W. Dryfe
Source:
ACS applied materials & interfaces 2022 v.14 no.22 pp. 25232-25245
ISSN:
1944-8252
Subject:
aluminum; aluminum oxide,   etc   ; alloys; cathodes; electric potential difference; electrochemistry; electrolytes; energy density;     Show all 8 Subjects
Abstract:
... Aqueous rechargeable batteries based on aluminum chemistry have become the focus of immense research interest owing to their earth abundance, low cost, and the higher theoretical volumetric energy density of this element compared to lithium-ion batteries. Efforts to harness this huge potential have been hindered by the narrow potential window of water and by passivating effects of the high-electri ...
DOI:
10.1021/acsami.1c23278

17. Thermochemical heat storage and optical properties of red mud/Mn co-doped high alumina cement-stabilized carbide slag in CaO/CaCO3 cycles

Author:
Ying Yang; Yingjie Li; Chunxiao Zhang; Zirui He; Jianli Zhao
Source:
Fuel processing technology 2022 v.236 pp. 107419
ISSN:
0378-3820
Subject:
aluminum; aluminum oxide,   etc   ; absorption; calcium oxide; cement; heat; industry; slags; solar energy;     Show all 9 Subjects
Abstract:
... CaO/CaCO₃ thermochemical heat storage has been considered as a competitive technology in concentrated solar power plants. Carbide slag and red mud are solid wastes from the chlor-alkali industry and aluminum industry, respectively. In this work, the red mud/Mn co-doped high alumina cement-stabilized carbide slag was synthesized for CaO/CaCO₃ heat storage. The effects of the addition of high alumin ...
DOI:
10.1016/j.fuproc.2022.107419

18. Distinct granulation pathways of aerobic granular sludge under poly aluminum chloride enhancement

Author:
Ziwei Chen; Qiang He; Junyu Chen; Bing Zhang; Caihong Liu; Xiaoliu Huangfu
Source:
Science of the total environment 2022 v.807 pp. 150829
ISSN:
0048-9697
Subject:
aluminum; aluminum chloride,   etc   ; denitrification; dissolved oxygen; environment; neutralization; sludge; strength (mechanics); wastewater treatment;     Show all 9 Subjects
Abstract:
... Aerobic granular sludge (AGS), a novel strategy for nutrient removal which exhibits compact structure, good settleability, and resilience against high organic load, has been considered as a highly potential wastewater treatment technology. However, the long start-up period for granulation prevented its widespread development. In this study, the distinct pathways of PAC-enhanced AGS granulation wer ...
DOI:
10.1016/j.scitotenv.2021.150829

19. Efficient separation of cathode materials and Al foils from spent lithium batteries with glycerol heating: A green and unconventional way

Author:
Kunhong Gu; Jiahui Chang; Xiaohui Mao; Hongbo Zeng; Wenqing Qin; Junwei Han
Source:
Journal of cleaner production 2022 v.369 pp. 133270
ISSN:
0959-6526
Subject:
aluminum; aluminum foil,   etc   ; cathodes; differential equation; fluid mechanics; glycerol; heat transfer; lithium; temperature;     Show all 9 Subjects
Abstract:
... The recycle and reuse of spent lithium-ion batteries are of great environmental and economic significance. Here we succeeded in separating cathode materials from Al foils under an innovative method by the combination of glycerol heating and mechanical stirring. The peel-off rate of cathode material from aluminum foil reaches more than 95% after the treatment under the optimized conditions: heating ...
DOI:
10.1016/j.jclepro.2022.133270

20. Smart combination of aluminum hydroxide and MF59 to induce strong cellular immune responses

Author:
Zhengjun Chen; Xinyan Hao; Hairui Wang; Xiaofang Zhong; Xiaoyan Chen; Yuanhao Zhao; Yuandong Zhang; Guangsheng Du; Xun Sun
Source:
Journal of controlled release 2022 v.349 pp. 699-711
ISSN:
0168-3659
Subject:
aluminum; aluminum hydroxide,   etc   ; antigens; gels; lymph; lysosomes; models; nanoemulsions; neoplasms; ovalbumin; subcutaneous injection;     Show all 11 Subjects
Abstract:
... As two of the most widely used adjuvants, aluminum hydroxide and the oil-in-water emulsion MF59 have their intrinsic limitations: classical aluminum gel induces only weak cellular immune responses while MF59 cannot be used as an antigen delivery system due to its poor physical interaction with antigen molecules. Herein, we combined these two adjuvants and constructed a novel nano-vaccine delivery ...
DOI:
10.1016/j.jconrel.2022.07.032