Three-dimensional MoSx(1 < x < 2) nanosheets decorated graphene aerogel for lithium–oxygen batteries

2016 ◽  
Vol 4 (28) ◽  
pp. 10986-10991 ◽  
Author(s):  
Liangyu Li ◽  
Chunguang Chen ◽  
Junming Su ◽  
Peng Kuang ◽  
Congcong Zhang ◽  
...  
Keyword(s):  
Freeze Drying ◽  
Three Dimensional ◽  
Drying Method ◽  
Graphene Aerogel ◽  
Graphene Aerogels ◽  
3D Architecture ◽  
Lithium Oxygen Batteries ◽  
Potential Oxygen ◽  
Oxygen Cathode

MoSx/graphene aerogels with a 3D architecture were synthesized using a hydrothermal and freeze-drying method and were further applied in Li–O2batteries as a potential oxygen cathode.

Chemically doped three-dimensional porous graphene monoliths for high-performance flexible field emitters

Nanoscale ◽  
2015 ◽  
Vol 7 (12) ◽  
pp. 5495-5502 ◽  
Author(s):  
Ho Young Kim ◽  
Sooyeon Jeong ◽  
Seung Yol Jeong ◽  
Kang-Jun Baeg ◽  
Joong Tark Han ◽  
...  
Keyword(s):  
Field Emission ◽  
High Performance ◽  
Freeze Drying ◽  
Three Dimensional ◽  
Drying Method ◽  
Porous Graphene ◽  
Field Emitters

High-performance flexible field emission was demonstrated using chemically doped three-dimensional porous graphene monoliths fabricated by a simple freeze-drying method of a highly concentrated graphene/polymer paste containing dopants.

Fabrication of three-dimensional TKX-50 network-like nanostructures by liquid nitrogen-assisted spray freeze-drying method

2019 ◽  
Vol 37 (3) ◽  
pp. 356-364 ◽  
Author(s):  
Xiong Cao ◽  
Yiping Shang ◽  
Kejuan Meng ◽  
Guodong Yue ◽  
Liyuan Yang ◽  
...  
Keyword(s):  
Liquid Nitrogen ◽  
Freeze Drying ◽  
Three Dimensional ◽  
Drying Method ◽  
Spray Freeze Drying

Modification of the three-dimensional graphene aerogel self-assembled network by titanate coupling agent and its thermal conductivity mechanism with epoxy composites

Nanoscale ◽  
2021 ◽  
Author(s):  
Sufei Cui ◽  
Wei Wu ◽  
Chao Liu ◽  
Yi Wang ◽  
Qiming Chen ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Thermal Management ◽  
Coupling Agent ◽  
Three Dimensional ◽  
Epoxy Composites ◽  
Graphene Aerogel ◽  
Conductivity Mechanism ◽  
Graphene Aerogels ◽  
Self Assembled

Three-dimensional thermal conductive graphene aerogels have become more and more significant in practical thermal management applications. However, the interface between the graphene aerogel and the polymer has a strong interface...

Revealing gross three-dimensional structure in the SEM

1987 ◽  
Vol 45 ◽  
pp. 656-657
Author(s):  
Sterling P. Newberry
Keyword(s):  
Freeze Drying ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Small Object ◽  
Final Solution ◽  
Dimensional Representation ◽  
X Ray ◽  
Three Dimensional Representation ◽  
Freeze Dried ◽  
Critical Point Drying

The beautiful three dimensional representation of small object surfaces by the SEM leads one to search for ways to open up the sample and look inside. Could this be the answer to a better microscopy for gross biological 3-D structure? We know from X-Ray microscope images that Freeze Drying and Critical Point Drying give promise of adequately preserving gross structure. Can we slice such preparations open for SEM inspection? In general these preparations crush more readily than they slice. Russell and Dagihlian got around the problem by “deembedding” a section before imaging. This some what defeats the advantages of direct dry preparation, thus we are reluctant to accept it as the final solution to our problem. Alternatively, consider fig 1 wherein a freeze dried onion root has a window cut in its surface by a micromanipulator during observation in the SEM.

scholarly journals Evaluation of Innovative Dried Purée from Jerusalem Artichoke—In Vitro Studies of Its Physicochemical and Health-Promoting Properties

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2644
Author(s):  
Jan Oszmiański ◽  
Sabina Lachowicz ◽  
Paulina Nowicka ◽  
Paweł Rubiński ◽  
Tomasz Cebulak
Keyword(s):  
Freeze Drying ◽  
Jerusalem Artichoke ◽  
Polyphenolic Compounds ◽  
Raw Material ◽  
Vacuum Drying ◽  
Drying Methods ◽  
Drying Method ◽  
Activity Inhibition ◽  
Health Promoting

The present study aimed to evaluate the effect of Jerusalem artichoke processing methods and drying methods (freeze drying, sublimation drying, vacuum drying) on the basic physicochemical parameters, profiles and contents of sugars and polyphenolic compounds, and health-promoting properties (antioxidant activity, inhibition of the activities of α-amylase, α-glucosidase, and pancreatic lipase) of the produced purée. A total of 25 polyphenolic compounds belonging to hydroxycinnamic phenolic acids (LC-PDA-MS-QTof) were detected in Jerusalem artichoke purée. Their average content in the raw material was at 820 mg/100 g dm (UPLC-PDA-FL) and was 2.7 times higher than in the cooked material. The chemical composition and the health-promoting value of the purées were affected by the drying method, with the most beneficial values of the evaluated parameters obtained upon freeze drying. Vacuum drying could offer an alternative to freeze drying, as both methods ensured relatively comparable values of the assessed parameters.

scholarly journals A three-dimensional polyoxometalate/graphene aerogel as a highly efficient and recyclable absorbent for oil/water separation

2021 ◽  
Vol 36 (1) ◽  
pp. 189-197
Author(s):  
Sen Wang ◽  
Xiao Wang ◽  
Xiao-yu Shi ◽  
Cai-xia Meng ◽  
Cheng-lin Sun ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Graphene Aerogel ◽  
Water Separation ◽  
Highly Efficient ◽  
Oil Water Separation ◽  
Oil Water

scholarly journals Environmentally Friendly and Multifunctional Shaddock Peel-Based Carbon Aerogel for Thermal-Insulation and Microwave Absorption

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Weihua Gu ◽  
Jiaqi Sheng ◽  
Qianqian Huang ◽  
Gehuan Wang ◽  
Jiabin Chen ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Thermal Insulation ◽  
Freeze Drying ◽  
Thermal Infrared ◽  
Carbon Aerogel ◽  
Carbon Aerogels ◽  
List Type ◽  
Drying Method ◽  
Cross Sectional ◽  
Compression Resistance

Highlights The eco-friendly shaddock peel-derived carbon aerogels were prepared by a freeze-drying method. Multiple functions such as thermal insulation, compression resistance and microwave absorption can be integrated into one material-carbon aerogel. Novel computer simulation technology strategy was selected to simulate significant radar cross-sectional reduction values under real far field condition. . Abstract Eco-friendly electromagnetic wave absorbing materials with excellent thermal infrared stealth property, heat-insulating ability and compression resistance are highly attractive in practical applications. Meeting the aforesaid requirements simultaneously is a formidable challenge. Herein, ultra-light carbon aerogels were fabricated via fresh shaddock peel by facile freeze-drying method and calcination process, forming porous network architecture. With the heating platform temperature of 70 °C, the upper surface temperatures of the as-prepared carbon aerogel present a slow upward trend. The color of the sample surface in thermal infrared images is similar to that of the surroundings. With the maximum compressive stress of 2.435 kPa, the carbon aerogels can provide favorable endurance. The shaddock peel-based carbon aerogels possess the minimum reflection loss value (RLmin) of − 29.50 dB in X band. Meanwhile, the effective absorption bandwidth covers 5.80 GHz at a relatively thin thickness of only 1.7 mm. With the detection theta of 0°, the maximum radar cross-sectional (RCS) reduction values of 16.28 dB m2 can be achieved. Theoretical simulations of RCS have aroused extensive interest owing to their ingenious design and time-saving feature. This work paves the way for preparing multi-functional microwave absorbers derived from biomass raw materials under the guidance of RCS simulations.

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