Low temperature electrolysis for iron production via conductive colloidal electrode

RSC Advances ◽  
2015 ◽  
Vol 5 (8) ◽  
pp. 5501-5507 ◽  
Author(s):  
Qiang Wang ◽  
Yi Zhu ◽  
Qiuyang Wu ◽  
Eric Gratz ◽  
Yan Wang
Keyword(s):  
Low Temperature ◽  
Liquid Electrolyte ◽  
Active Species ◽  
Iron Production ◽  
Electrical Conductor ◽  
Electrochemically Active

In the process of low temperature electrolysis of Fe2O3, an electrical-ionic conductive colloidal electrode containing the electrochemically active species, the liquid electrolyte and a percolating electrical conductor has been successfully fabricated and used to produce Fe.

FEC-LiTFSI-Pyr1ATFSI Ionic Liquid Electrolyte to Improve Low Temperature Performance of Lithium-Ion Batteries

2014 ◽  
Vol 986-987 ◽  
pp. 80-83
Author(s):  
Xiao Xue Zhang ◽  
Zhen Feng Wang ◽  
Cui Hua Li ◽  
Jian Hong Liu ◽  
Qian Ling Zhang
Keyword(s):  
Low Temperature ◽  
Lithium Ion Batteries ◽  
Low Temperatures ◽  
Freezing Point ◽  
Lithium Ion ◽  
Liquid Electrolyte ◽  
Capacity Retention ◽  
Composite Electrolyte ◽  
Ionic Liquid Electrolyte ◽  
Fluoroethylene Carbonate

N-methyl-N-allylpyrrolidinium bis (trifluoromethanesulfonyl) imide (PYR1ATFSI) with substantial supercooling behavior is synthesized to develop low temperature electrolyte for lithium-ion batteries. Additive fluoroethylene carbonate (FEC) in LiTFSI/PYR1ATFSI/EC/PC/EMC is found that it can reduce the freezing point. LiFePO4/Li coin cells with the FEC-PYR1ATFSI electrolyte exhibit good capacity retention, reversible cycling behavior at low temperatures. The good performance can be attributed to the decrease in the freezing point and the polarization of the composite electrolyte.

Quantifying Decay Rates of Electrochemically Active Species Using Microelectrode Voltammetry

2020 ◽  
Vol MA2020-01 (3) ◽  
pp. 509-509
Author(s):  
Jesse Hinricher ◽  
Michael Julian Orella ◽  
Jeffrey A Kowalski ◽  
Fikile R. Brushett
Keyword(s):  
Active Species ◽  
Decay Rates ◽  
Electrochemically Active

scholarly journals Tunable preparation of highly dispersed NixMn-LDO catalysts derived from NixMn-LDHs precursors and application in low-temperature NH3-SCR reactions

RSC Advances ◽  
2019 ◽  
Vol 9 (42) ◽  
pp. 24377-24385 ◽  
Author(s):  
Benhui Hou ◽  
Yali Du ◽  
Xuezhen Liu ◽  
Chao Ci ◽  
Xu Wu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Uniform Distribution ◽  
Active Species ◽  
Nh3 Scr ◽  
Highly Dispersed

The NixMn-LDO catalysts derived from NixMn-LDHs precursors with uniform distribution of active species particles exhibited outstanding DeNOx performance.

One-Step Low-Temperature Route for the Preparation of Electrochemically Active LiMnPO4 Powders.

ChemInform ◽  
2004 ◽  
Vol 35 (13) ◽  
Author(s):  
C. Delacourt ◽  
P. Poizot ◽  
M. Morcrette ◽  
J.-M. Tarascon ◽  
C. Masquelier
Keyword(s):  
Low Temperature ◽  
Electrochemically Active ◽  
One Step

Enhancing catalytic activity and stability for CO2 methanation on Ni@MOF-5 via control of active species dispersion

2015 ◽  
Vol 51 (9) ◽  
pp. 1728-1731 ◽  
Author(s):  
Wenlong Zhen ◽  
Bo Li ◽  
Gongxuan Lu ◽  
Jiantai Ma
Keyword(s):  
Catalytic Activity ◽  
Low Temperature ◽  
High Stability ◽  
Active Catalyst ◽  
Active Species ◽  
Co2 Methanation ◽  
Long Term Stability ◽  
Uniform State ◽  
Highly Dispersed

A novel high active catalyst Ni@MOF-5 showed unexpected higher activity under the low temperature for CO2 methanation. The characterization results indicated that Ni was in highly dispersed uniform state over MOF-5. This catalyst performed high stability and showed almost no deactivation in long term stability tests up to 100 h.

Alternating Copolymerization of Butadiene and Propylene

1972 ◽  
Vol 45 (6) ◽  
pp. 1532-1545 ◽  
Author(s):  
Junji Furukawa
Keyword(s):  
Low Temperature ◽  
Carbonyl Compounds ◽  
Catalyst Activity ◽  
Active Species ◽  
Alternating Copolymer ◽  
Synthetic Rubber ◽  
Monomer Feed ◽  
Alternating Copolymerization ◽  
Titanium Compounds ◽  
Anionic Copolymerization

Abstract An alternating copolymer of propylene and butadiene is prepared with vanadium or titanium compounds and alkylaluminum compounds as the polymerization catalyst. The catalyst should be prepared at extremely low temperature as −70° C and halogen atom is essential to the catalyst activity. Carbonyl compounds such as ketone, acid, ester, acid anhydride, and acid peroxide are very effective additives to the catalyst for enhancement of the molecular weight of the polymer. Potentiometric titration and the ESR studies suggest that a divalent vanadium compound associated to form the dimer through a chloride bridge is a precursor of the active species. An anionic copolymerization mechanism involving the alternating coordination of monomers is proposed. The copolymer is always of a 1:1 composition irrespective of the composition of monomer feed and the alternating structure of trans-1,4-poly (butadiene co propylene) is estimated from IR and NMR data. The copolymer seems to be a new versatile synthetic rubber having excellent low temperature properties, high rebound, good compatibility with conventional rubbers, and high resistance toward aging.

ChemInform Abstract: Electrochemically Active Species and Multielectron Processes in Ionic Melts

ChemInform ◽  
2010 ◽  
Vol 32 (35) ◽  
pp. no-no
Author(s):  
V. I. Shapoval ◽  
V. V. Solov'ev ◽  
V. V. Malyshev
Keyword(s):  
Active Species ◽  
Ionic Melts ◽  
Electrochemically Active
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