Preparation of Dandelion-Like Nano/Micro Zinc Oxide Material

2013 ◽  
Vol 652-654 ◽  
pp. 258-261
Author(s):  
Yu Liang

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.

2011 ◽  
Vol 21 (43) ◽  
pp. 17366 ◽  
Author(s):  
Hui Bi ◽  
Fuqiang Huang ◽  
Jun Liang ◽  
Yufeng Tang ◽  
Xujie Lü ◽  
...  

RSC Advances ◽  
2014 ◽  
Vol 4 (17) ◽  
pp. 8466-8471 ◽  
Author(s):  
Yufei Zhang ◽  
Mingze Ma ◽  
Jun Yang ◽  
Wei Huang ◽  
Xiaochen Dong

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.


2006 ◽  
Vol 60 (25-26) ◽  
pp. 3133-3136 ◽  
Author(s):  
Shangfeng Du ◽  
Yajun Tian ◽  
Jian Liu ◽  
Haidi Liu ◽  
Yunfa Chen

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1444
Author(s):  
Tao Shang ◽  
Qingshan Lu ◽  
Jianjun Zhao ◽  
Luomeng Chao ◽  
Yanli Qin ◽  
...  

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.


1969 ◽  
Vol 22 (03) ◽  
pp. 577-583 ◽  
Author(s):  
M.M.P Paulssen ◽  
A.C.M.G.B Wouterlood ◽  
H.L.M.A Scheffers

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.


1992 ◽  
Vol 70 (6) ◽  
pp. 448-454 ◽  
Author(s):  
Ewa Świeżewska ◽  
T. Chojnacki ◽  
W. J. Jankowski ◽  
K. Singh ◽  
J. Olsson

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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