scholarly journals Totally Organic Polymer-Based Electrochromic Cell Using TEMPO-Substituted Polynorbornene as a Counter Electrode-Active Material

2008 ◽  
Vol 40 (8) ◽  
pp. 763-767 ◽  
Author(s):  
Yusuke Takahashi ◽  
Naoki Hayashi ◽  
Kenichi Oyaizu ◽  
Kenji Honda ◽  
Hiroyuki Nishide
Keyword(s):  
Counter Electrode ◽  
Active Material ◽  
Organic Polymer ◽  
Electrochromic Cell

Sulfides organic polymer: Novel cathode active material for rechargeable lithium batteries

2007 ◽  
Vol 168 (1) ◽  
pp. 278-281 ◽  
Author(s):  
Jing Yu Zhang ◽  
Ling Bo Kong ◽  
Li Zhi Zhan ◽  
Jing Tang ◽  
Hui Zhan ◽  
...  
Keyword(s):  
Lithium Batteries ◽  
Active Material ◽  
Organic Polymer ◽  
Rechargeable Lithium Batteries

scholarly journals Preparation and Investigation of a Novel Organic Polymer Consisting of 2,2,6,6-Tetramethylpiperidine-N-oxy as a Cathode Active Material in Li-Ion Batteries

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Emre Biçer ◽  
Atilla Öktemer
Keyword(s):  
Discharge Capacity ◽  
High Power ◽  
Active Material ◽  
Organic Polymer ◽  
Organic Radical ◽  
Li Ion Batteries ◽  
Cycle Stability ◽  
Coin Cell ◽  
Li Ion

In the present study, a novel organic polymer consisting of 2,2,6,6-tetramethylpiperidine-N-oxyl group as an electroactive center is employed by synthesizing it from a commercially ready polymer. An investigation on electrochemical and battery properties of this material as a cathode active material in different electrolyte salts was conducted. A coin cell shows a discharge capacity of 40 mAh g−1at 1 Cwhich is 76% of its theoretical capacity. It is observed that there is no significant decrease in capacity value even at 2 Cand 5 Cwhich indicates that it is applicable for the high-power applications. Besides, a good cycle stability is obtained with the organic radical battery.

Effect of counter electrode reaction on coloration properties of phthalate-based electrochromic cell

2012 ◽  
Vol 99 ◽  
pp. 88-94 ◽  
Author(s):  
Yuichi Watanabe ◽  
Kinji Imaizumi ◽  
Kazuki Nakamura ◽  
Norihisa Kobayashi
Keyword(s):  
Counter Electrode ◽  
Electrode Reaction ◽  
Electrochromic Cell

scholarly journals Optical Modulator using Ultra-Thin Silicon Waveguide in SOI Hybrid Technology

2021 ◽  
Author(s):  
Ahmed B. Ayoub ◽  
Mohamed Swillam
Keyword(s):  
Extinction Ratio ◽  
Active Material ◽  
High Sensitivity ◽  
Silicon On Insulator ◽  
Organic Polymer ◽  
Optical Modulator ◽  
Silicon Waveguide ◽  
Wide Range ◽  
Thin Silicon ◽  
On Chip

Abstract We propose a detailed study of an on-chip optical modulator using a non-conventional silicon-based platform. This platform is based on the optimum design of ultra-thin silicon on insulator (SOI) waveguide. This platform is characterized by low field confinement inside the core waveguide and high sensitivity to the cladding index. Accordingly, it lends itself to a wide range of applications, such as sensing and optical modulation. By employing this waveguide into the Mach-Zehnder interferometer (MZI) configuration, an efficient optical modulator is reported using an organic polymer as an active material for the electro-optic effect. An extinction ratio of more than 20 dB is achieved with energy per bit of 13.21 fJ/bit for 0.5 V applied voltage. This studied platform shows promising and adequate performance for modulation applications. It is cheap and easy to fabricate.

High Resolution Transmission Electron Microscopy of an automobile catalytic converter

1990 ◽  
Vol 48 (4) ◽  
pp. 242-243
Author(s):  
Jan-Olle Malm ◽  
Jan-Olov Bovin
Keyword(s):  
Electron Microscopy ◽  
High Resolution ◽  
Catalytic Converter ◽  
Active Material ◽  
Image Intensifier ◽  
High Resolution Electron Microscopy ◽  
Detailed Knowledge ◽  
Transmission Electron ◽  
Resolution Electron ◽  
Atomic Surface

Understanding of catalytic processes requires detailed knowledge of the catalyst. As heterogeneous catalysis is a surface phenomena the understanding of the atomic surface structure of both the active material and the support material is of utmost importance. This work is a high resolution electron microscopy (HREM) study of different phases found in a used automobile catalytic converter.The high resolution micrographs were obtained with a JEM-4000EX working with a structural resolution better than 0.17 nm and equipped with a Gatan 622 TV-camera with an image intensifier. Some work (e.g. EDS-analysis and diffraction) was done with a JEM-2000FX equipped with a Link AN10000 EDX spectrometer. The catalytic converter in this study has been used under normal driving conditions for several years and has also been poisoned by using leaded fuel. To prepare the sample, parts of the monolith were crushed, dispersed in methanol and a drop of the dispersion was placed on the holey carbon grid.

ISOLEMENT ET QUELQUES CARACTERISTIQUES D'UNE GONADOTROPHINE URINAIRE DE MÉNOPAUSE HOMOGÈNE A L'ELECTROPHORÈSE

1960 ◽  
Vol XXXV (II) ◽  
pp. 225-234 ◽  
Author(s):  
R. Bourrillon ◽  
R. Got ◽  
R. Marcy
Keyword(s):  
Sialic Acid ◽  
Histological Study ◽  
Active Material ◽  
Biologically Active ◽  
New Method ◽  
Female Rats ◽  
Mouse Uterus ◽  
Highly Active ◽  
Zone Electrophoresis ◽  
Human Menopausal Gonadotrophin

ABSTRACT A new method for preparation of Human Menopausal Gonadotrophin involves successively alcoholic precipitation, kaolin adsorption and chromatography on ion exchangers. A highly active material is obtained which corresponds to 1 mg per litre of urine and has an activity of 1 mouse uterus unit at a dose of 0.003 mg. This gonadotrophin possesses both follicle stimulating and luteinizing activities in hypophysectomized female rats, by histological study. It contains 13 % hexose, 10% hexosamine and 8.5 % sialic acid. A further purification, by zone electrophoresis on starch, gives a final product, biologically active at 0.001 mg, which behaves as an homogenous substance in free electrophoresis with mobility −4.76 × 10−5 at pH 8.6.

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