Hybrid Carbon Spherogels: Carbon Encapsulation of Nano-Titania

2021 ◽  
Author(s):  
Miralem Salihovic ◽  
Jürgen Schoiber ◽  
Alexey S. Cherevan ◽  
Christoph Rameshan ◽  
Gerhard Fritz-Popovski ◽  
...  
Keyword(s):  
Hollow Sphere ◽  
Polystyrene Sphere ◽  
Resorcinol Formaldehyde ◽  
Titania Layer ◽  
Hybrid Carbon

Extraordinarily homogeneous, freestanding titania-loaded carbon spherogels can be obtained using Ti(acac)2(OiPr)2 in the polystyrene sphere templated resorcinol-formaldehyde gelation. Thereby, a distinct, crystalline titania layer is achieved inside every hollow sphere...

scholarly journals A novel green process for tannic acid hydrolysis using an internally sulfonated hollow polystyrene sphere as catalyst

RSC Advances ◽  
2018 ◽  
Vol 8 (31) ◽  
pp. 17151-17158 ◽  
Author(s):  
Qionglin Luo ◽  
Shunqin Zeng ◽  
You Shu ◽  
Zaihui Fu ◽  
Hongran Zhao ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Hydrochloric Acid ◽  
Acid Hydrolysis ◽  
Tannic Acid ◽  
Hollow Sphere ◽  
Polystyrene Sphere ◽  
Green Process

A polystyrene-hollow sphere catalyst was prepared by treating polystyrene-encapsulated calcium carbonate particles with concentrated hydrochloric acid.

A Resorcinol-Formaldehyde Resin as an Embedding Material for Electron Microscopy of Membranes

1969 ◽  
Vol 27 ◽  
pp. 328-329 ◽  
Author(s):  
J. G. Robertson ◽  
D. F. Parsons
Keyword(s):  
Electron Microscopy ◽  
Osmium Tetroxide ◽  
Neutral Lipids ◽  
Lipid Extraction ◽  
Water Soluble ◽  
Formaldehyde Resin ◽  
Electron Microscope Autoradiography ◽  
Resorcinol Formaldehyde ◽  
Major Disadvantage ◽  
Cell Organization

The extraction of lipids from tissues during fixation and embedding for electron microscopy is widely recognized as a source of possible artifact, especially at the membrane level of cell organization. Lipid extraction is also a major disadvantage in electron microscope autoradiography of radioactive lipids, as in studies of the uptake of radioactive fatty acids by intestinal slices. Retention of lipids by fixation with osmium tetroxide is generally limited to glycolipids, phospholipids and highly unsaturated neutral lipids. Saturated neutral lipids and sterols tend to be easily extracted by organic dehydrating reagents prior to embedding. Retention of the more saturated lipids in embedded tissue might be achieved by developing new cross-linking reagents, by the use of highly water soluble embedding materials or by working at very low temperatures.

Advanced Processing of Hollow Sphere Foams

1999 ◽  
Author(s):  
T. H. Sanders ◽  
Cochran Jr. ◽  
Joe K.
Keyword(s):  
Hollow Sphere

Stainless Steel Hollow Sphere Foams-Fabrication, Carburization, and Properties

1998 ◽  
Author(s):  
J. L. Clark ◽  
K. M. Hurysz ◽  
K. J. Lee ◽  
J. K. Cochran ◽  
T. H. Sanders ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Hollow Sphere

Effect of graphene nano-platelets on mechanical and impact characteristics of carbon/Kevlar reinforced epoxy hybrid nanocomposites

2021 ◽  
pp. 095440622110168
Author(s):  
Mohamad Alsaadi ◽  
Bashar Younus ◽  
Ahmet Erklig ◽  
Mehmet Bulut ◽  
Omer Bozkurt ◽  
...  
Keyword(s):  
Impact Test ◽  
Charpy Impact ◽  
Hybrid Nanocomposites ◽  
Matrix Composites ◽  
Sem Images ◽  
The Matrix ◽  
Impact Characteristics ◽  
Positive Effect ◽  
Hybrid Carbon ◽  
Composite Samples

The influence of various graphene nano-platelets (GNPs) content on the tensile, flexural and Charpy impact characteristics of carbon, Kevlar and hybrid carbon/Kevlar fibers reinforced epoxy matrix composites was investigated. Both of composite configurations as carbon and Kevlar at outer and core skins were experimentally tested. The SEM images for flexural specimens were taken to observe the adhesion mechanism of GnPs particles with fiber/epoxy system. It is found that hybridization with Kevlar layers is contributed a positive effect on the hybrid carbon/Kevlar laminate structures in terms of tensile, flexural and impact behaviour. The incorporation of GnPs particles in hybrid and non-hybrid composite samples results in significant improvements in tensile, flexural and impact properties, and the greatest improvement occurs within the GnPs particle content of 0.1 and 0.25 wt%, indicating that the interfacial bonding between the matrix and the fibers is better due to the large surface area of the GnPs and the good entanglement between the GnPs layers and the matrix chains. The samples of impact test are experimented for edgewise and flatwise directions.

Synthesis and Application of Double-Shelled CuCo2O4 Hollow Sphere Catalyst for Chemical Fixation of CO2

2021 ◽  
Author(s):  
P. Heydari Boushehri ◽  
A. Hafizi ◽  
M. R. Rahimpour ◽  
R. Khalifeh
Keyword(s):  
Hollow Sphere ◽  
Chemical Fixation

Synthesis, Characterization and Photocatalytic Properties of Robust Resorcinol-Formaldehyde Polymer Fine Particles

2021 ◽  
pp. 118240
Author(s):  
Shinya Higashimoto ◽  
Yushi Sasakura ◽  
Ryuki Tokunaga ◽  
Masanari Takahashi ◽  
Hisayoshi Kobayashi ◽  
...  
Keyword(s):  
Fine Particles ◽  
Photocatalytic Properties ◽  
Resorcinol Formaldehyde

Facile Fabrication of CeO2-Al2O3 Hollow Sphere with Atomically Dispersed Fe via Spray Pyrolysis

2021 ◽  
Author(s):  
Xin-Pu Fu ◽  
Wen-Zhu Yu ◽  
Meng-Yuan Li ◽  
Rui Si ◽  
Chao Ma ◽  
...  
Keyword(s):  
Spray Pyrolysis ◽  
Hollow Sphere ◽  
Facile Fabrication
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