scholarly journals Novel Three-Dimensional Graphene-Like Networks Loaded with Fe3O4 Nanoparticles for Efficient Microwave Absorption

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1444
Author(s):  
Tao Shang ◽  
Qingshan Lu ◽  
Jianjun Zhao ◽  
Luomeng Chao ◽  
Yanli Qin ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Fe3o4 Nanoparticles ◽  
Large Scale ◽  
Three Dimensional ◽  
Ion Exchange Resin ◽  
Large Scale Preparation ◽  
3D Network ◽  
Hierarchical Porous ◽  
Absorbing Material ◽  
Scale Preparation

A novel three-dimensional graphene-like networks material (3D-GLN) exhibiting the hierarchical porous structure was fabricated with a large-scale preparation method by employing an ion exchange resin as a carbon precursor. 3D-GLN was first studied as the effective microwave absorbing material. As indicated from the results of the electromagnetic parameter tests, and the minimum reflection loss (RL) of the 3D-GLN reached −34.75 dB at the frequency of 11.7 GHz. To enhance the absorption performance of the nonmagnetic 3D-GLN, the magnetic Fe3O4 nanoparticles were loaded on the surface of the 3D-GLN by using the hydrothermal method to develop the 3D-GLN/Fe3O4 hybrid. The hybrid exhibited the prominent absorbing properties. Under the matching thickness of 3.0 mm, the minimum RL value of hybrid reached −46.8 dB at 11.8 GHz. In addition, under the thickness range of 2.0–5.5 mm, the effective absorption bandwidth (RL < 10 dB) was 13.0 GHz, which covered part of the C-band and the entire X-band, as well as the entire Ku-band. The significant microwave absorption could be attributed to the special 3D network structure exhibited by the hybrid and the synergistic effect exerted by the graphene and the Fe3O4 nanoparticles. As revealed from the results, the 3D-GLN/Fe3O4 hybrid could be a novel microwave absorber with promising applications.

Large-scale preparation of highly conductive three dimensional graphene and its applications in CdTe solar cells

2011 ◽  
Vol 21 (43) ◽  
pp. 17366 ◽  
Author(s):  
Hui Bi ◽  
Fuqiang Huang ◽  
Jun Liang ◽  
Yufeng Tang ◽  
Xujie Lü ◽  
...  
Keyword(s):  
Solar Cells ◽  
Large Scale ◽  
Three Dimensional ◽  
Cdte Solar Cells ◽  
Large Scale Preparation ◽  
Scale Preparation

Preparation of Dandelion-Like Nano/Micro Zinc Oxide Material

2013 ◽  
Vol 652-654 ◽  
pp. 258-261
Author(s):  
Yu Liang
Keyword(s):  
Zinc Oxide ◽  
Large Scale ◽  
Solvothermal Method ◽  
Zno Nanorods ◽  
Three Dimensional ◽  
Kirkendall Effect ◽  
Oxide Material ◽  
Large Scale Preparation ◽  
Scale Preparation ◽  
Composition Structure

The three-dimensional dandelion-like zinc oxide nanostructure composed of single-crystal ZnO nanorods was prepared by means of Kirkendall effect while using solvothermal method and taking Zn powder as the source of zinc. In the paper, the composition, structure and appearance of the sample were studied by means of XRD, SEM, RDS, SEAD, TEM, HRTEM and other methods. The method was widely used as a new method for the large-scale preparation of nano/micro zinc oxide material.

scholarly journals Large-Scale Preparation of Low-Cost Nonfullerene Acceptors for Stable and Efficient Organic Solar Cells

2021 ◽  
Author(s):  
Wenrui Liu ◽  
Shengjie Xu ◽  
Wuyue Liu ◽  
Xiaozhang Zhu
Keyword(s):  
Organic Solar Cells ◽  
Large Scale ◽  
Low Cost ◽  
Photovoltaic Performance ◽  
Commercial Application ◽  
Good Efficiency ◽  
Device Stability ◽  
Large Scale Preparation ◽  
3D Network ◽  
Scale Preparation

Despite the development of nonfullerene acceptors (NFAs) that have made a breakthrough in the photovoltaic performance, large-scale preparation of NFAs that is prerequisite for commercial application has never been explored. Herein, we designed two dodecacyclic all-fused-ring electron acceptors, F11 and F13, and develop a whole set of synthetic procedures, achieving unprecedented scalable preparation of NFAs in the lab at a 10-g scale notably within one day. The single-crystal structures of F11 reveals the 3D network packing. F11 and F13 display the lowest costs among reported NFAs, even comparable with the classical donor material, P3HT. By matching a medium-bandgap polymer donor, F13 delivers power conversion efficiencies of over 13%, which is an efficiency record for non-INCN acceptors. Benefiting from the intrinsically high stability, OSCs based on F11 and F13 show device stability superior to the typical ITIC- and Y6-based OSCs as evidenced by the tiny burn-in losses. The current work presents a first example for large-scale preparation of low-cost NFAs with good efficiency and high device stability, which is significant for OSC commercialization in near future.

Graphene-based three-dimensional hierarchical sandwich-type architecture for high performance supercapacitors

RSC Advances ◽  
2014 ◽  
Vol 4 (17) ◽  
pp. 8466-8471 ◽  
Author(s):  
Yufei Zhang ◽  
Mingze Ma ◽  
Jun Yang ◽  
Wei Huang ◽  
Xiaochen Dong
Keyword(s):  
Carbon Nanotubes ◽  
High Performance ◽  
Large Scale ◽  
Three Dimensional ◽  
Step Method ◽  
Large Scale Preparation ◽  
Sandwich Type ◽  
Scale Preparation

A facile two-step method is developed for large-scale preparation of graphene-based three-dimensional hierarchical sandwich-type architecture (graphene/carbon nanotubes (CNTs)/Mn2O3) for high performance supercapacitor.

Facile self-templating large scale preparation of biomass-derived 3D hierarchical porous carbon for advanced supercapacitors

2015 ◽  
Vol 3 (35) ◽  
pp. 18154-18162 ◽  
Author(s):  
Shijiao Song ◽  
Fangwei Ma ◽  
Guang Wu ◽  
Di Ma ◽  
Weidan Geng ◽  
...  
Keyword(s):  
Large Scale ◽  
Low Cost ◽  
Scale Up ◽  
Hierarchical Porous Carbon ◽  
Renewable Biomass ◽  
Corn Husk ◽  
Large Scale Preparation ◽  
Hierarchical Porous ◽  
Scale Preparation ◽  
Pre Treatment

Corn husk, a renewable biomass, has been successfully explored as a low-cost crude carbon source to prepare advanced higher-value 3D HPCs by means of KOH pre-treatment and direct pyrolysis, the synthesis route is simple, self-templating and easy to scale-up for industrialization.

Purification of the Antihemophilic Factor by Gel Filtration on Agarose

1969 ◽  
Vol 22 (03) ◽  
pp. 577-583 ◽  
Author(s):  
M.M.P Paulssen ◽  
A.C.M.G.B Wouterlood ◽  
H.L.M.A Scheffers
Keyword(s):  
Factor Viii ◽  
Plasma Proteins ◽  
Large Scale ◽  
Gel Filtration ◽  
Large Scale Preparation ◽  
Scale Preparation ◽  
Antihemophilic Factor

SummaryFactor VIII can be isolated from plasma proteins, including fibrinogen by chromatography on agarose. The best results were obtained with Sepharose 6B. Large scale preparation is also possible when cryoprecipitate is separated by chromatography. In most fractions containing factor VIII a turbidity is observed which may be due to the presence of chylomicrons.The purified factor VIII was active in vivo as well as in vitro.

The occurrence of long chain polyprenols in leaves of plants of Rosaceae family and their isolation by time-extended liquid chromatography

1992 ◽  
Vol 70 (6) ◽  
pp. 448-454 ◽  
Author(s):  
Ewa Świeżewska ◽  
T. Chojnacki ◽  
W. J. Jankowski ◽  
K. Singh ◽  
J. Olsson
Keyword(s):  
Liquid Chromatography ◽  
Fatty Acid ◽  
Large Scale ◽  
Fatty Acid Esters ◽  
Large Scale Preparation ◽  
Scale Preparation ◽  
Wet Weight ◽  
Rosaceae Family ◽  
Acid Esters ◽  
Long Chain

The long chain polyprenols composed of 30 and more isoprene units from leaves of plants belonging to the genera Potentilla and Rosa have been described. They occur in the form of fatty acid esters. The composition of polyprenol mixture was species dependent and its content reached ca. 0.5% wet weight. Large scale preparation of individual polyprenols from a natural polyprenol mixture was performed using time-extended liquid chromatography on the hydrophobic gel Lipidex-5000.Key words: long chain polyprenols, Rosaceae.

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