Scalable Synthesis of Uniform Nanosized Microporous Carbon Particles from Rigid Polymers for Rapid Ion and Molecule Adsorption

2018 ◽  
Vol 10 (30) ◽  
pp. 25429-25437 ◽  
Author(s):  
Fei Ji ◽  
Yang Shi ◽  
Mingqian Li ◽  
Shengli Jiang ◽  
Gen Chen ◽  
...  
Keyword(s):  
Microporous Carbon ◽  
Carbon Particles ◽  
Molecule Adsorption ◽  
Rigid Polymers ◽  
Scalable Synthesis

Highly compact, free-standing porous electrodes from polymer-derived nanoporous carbons for efficient electrochemical capacitive deionization

2019 ◽  
Vol 7 (4) ◽  
pp. 1768-1778 ◽  
Author(s):  
Fei Ji‡ ◽  
Li Wang‡ ◽  
Jason Yang ◽  
Xu Wu ◽  
Mingqian Li ◽  
...  
Keyword(s):  
Microporous Carbon ◽  
Porous Electrodes ◽  
Capacitive Deionization ◽  
Free Standing ◽  
Nanoporous Carbons ◽  
Carbon Particles

Highly compact, nanoporous electrodes fabricated by slip-roll compressing of polypyrrole-derived activated microporous carbon particles enable efficient electrochemical capacitive deionization.

Accumulation of Macromolecular Particles in the Reticuloendothelial System (RES) Mediated by Platelet Aggregation and Disaggregation

1969 ◽  
Vol 22 (03) ◽  
pp. 496-507 ◽  
Author(s):  
W.G van Aken ◽  
J Vreeken
Keyword(s):  
Platelet Aggregation ◽  
Degradation Products ◽  
Reticuloendothelial System ◽  
Caproic Acid ◽  
Carbon Particles ◽  
Carbon Clearance ◽  
Aggregation And Disaggregation ◽  
Platelet Aggregates

SummaryCarbon particles cause platelet aggregation in vitro and in vivo. Prior studies established that substances which modify thrombocyte aggregation also influence the rate at which carbon is cleared from the blood.This study was performed in order to elucidate the mechanism by which the carbon-platelet aggregates specifically accumulate in the RES.Activation of fibrinolysis by urokinase or streptokinase reduced the carbon clearance rate, probably due to generated fibrinogen degradation products (FDP). Isolated FDP decreased the carbon clearance and caused disaggregation of platelets and particles in vitro. Inhibition of fibrinolysis by epsilon-amino-caproic acid (EACA), initially accelerated the disappearance of carbon and caused particle accumulation outside the RES, predominantly in the lungs. It is supposed that platelet aggregation and locally activated fibrinolysis act together in the clearance of particles. In the normal situation the RES with its well known low fibrinolytic activity, becomes the receptor of the particles.

Scalable Synthesis of Functionalized Ferrocenyl Azides and Amines Enabled by Flow Chemistry

2019 ◽  
Author(s):  
Merlin Kleoff ◽  
Johannes Schwan ◽  
Lisa Boeser ◽  
Bence Hartmayer ◽  
Mathias Christmann ◽  
...  
Keyword(s):  
Reaction Time ◽  
Heterogeneous Reaction ◽  
Reduction Process ◽  
Flow Chemistry ◽  
Subsequent Reaction ◽  
Scalable Synthesis ◽  
High Yields ◽  
Reactor Section

A scalable access to functionalized 1,1’- and 1,2-ferrocenyl azides has been realized in flow. By halogen‒lithium exchange of ferrocenyl halides and subsequent reaction with tosyl azide, a variety of functionalized ferrocenyl azides was obtained in high yields. To allow a scalable preparation of these potentially explosive compounds, an efficient flow protocol was developed accelerating the reaction time to minutes and circumventing accumulation of potentially hazardous intermediates. Switching from homogeneous to triphasic flow amidst process was key for handling a heterogeneous reaction mixture formed after a heated reactor section. The corresponding and synthetically versatile ferrocenyl amines were then prepared by a reliable reduction process.

HAYNES STELLITE ALLOY No. 4

Alloy Digest ◽  
1969 ◽  
Vol 18 (11) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Cast Alloy ◽  
Heat Treating ◽  
Carbon Particles ◽  
Stellite Alloy ◽  
Temperature Performance ◽  
Cobalt Base

Abstract Haynes Stellite No. 4 is a cobalt-base cast alloy recommended for handling severe conditions of abrasion, heat and corrosion. It is especially recommended to resist the severe abrasive and corrosive action of manganese dioxide, carbon particles, and ammonium and zinc chlorides in the battery mix used in the manufacture of dry batteries. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as heat treating, machining, and joining. Filing Code: Co-59. Producer or source: Union Carbide Materials Systems Division.

Continuous Synthesis of Nanodroplet-Templated, N-Doped Microporous Carbon Spheres in Microfluidic System for CO2 Capture

2020 ◽  
Vol 12 (47) ◽  
pp. 52571-52580
Author(s):  
Ziheng Jin ◽  
Xia Jiang ◽  
Zhongde Dai ◽  
Lingling Xie ◽  
Wei Wang ◽  
...  
Keyword(s):  
Co2 Capture ◽  
Microfluidic System ◽  
Microporous Carbon ◽  
Carbon Spheres ◽  
Continuous Synthesis

Simple and scalable synthesis of urchin-like ZnO nanoparticles via a microwave-assisted drying process

2021 ◽  
Author(s):  
Myung Sik Choi ◽  
Han Gil Na ◽  
Gyu Sam Shim ◽  
Jae Hee Cho ◽  
Min Young Kim ◽  
...  
Keyword(s):  
Zno Nanoparticles ◽  
Drying Process ◽  
Microwave Assisted ◽  
Scalable Synthesis

scholarly journals Carbon Particle In-Situ Alloying of the Case-Hardening Steel 16MnCr5 in Laser Powder Bed Fusion

Metals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 896
Author(s):  
Matthias Schmitt ◽  
Albin Gottwalt ◽  
Jakob Winkler ◽  
Thomas Tobie ◽  
Georg Schlick ◽  
...  
Keyword(s):  
Laser Beam ◽  
Mechanical Strength ◽  
Carbon Content ◽  
Metal Powder ◽  
Case Hardening ◽  
Powder Bed Fusion ◽  
Powder Bed ◽  
Carbon Particles ◽  
Case Hardening Steel

The carbon content of steel affects many of its essential properties, e.g., hardness and mechanical strength. In the powder bed fusion process of metals using a laser beam (PBF-LB/M), usually, pre-alloyed metal powder is solidified layer-by-layer using a laser beam to create parts. A reduction of the carbon content in steels is observed during this process. This study examines adding carbon particles to the metal powder and in situ alloying in the PBF-LB/M process as a countermeasure. Suitable carbon particles are selected and their effect on the particle size distribution and homogeneity of the mixtures is analysed. The workability in PBF-LB is then shown. This is followed by an evaluation of the resulting mechanical properties (hardness and mechanical strength) and microstructure in the as-built state and the state after heat treatment. Furthermore, potential use cases like multi-material or functionally graded parts are discussed.

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