Electrochemical Nitrogen Reduction Kinetics on a Copper Sulfide Catalyst for NH3 Synthesis at Low Temperature and Atmospheric Pressure

2021 ◽  
Author(s):  
Jimin Kong ◽  
Min-Seok Kim ◽  
Ramavi Akbar ◽  
Hee Young Park ◽  
Jong Hyun Jang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Atmospheric Pressure ◽  
Copper Sulfide ◽  
Reduction Kinetics ◽  
Sulfide Catalyst ◽  
Nitrogen Reduction

scholarly journals A two-dimensional air discharge modified model under unipolar square pulse voltage at low temperature and sub-atmospheric pressure

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Zhihang Zhao ◽  
Xinlao Wei ◽  
Shuang Song ◽  
Lin Cui ◽  
Zhonghua Zhang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Atmospheric Pressure ◽  
Pulse Voltage ◽  
Two Dimensional ◽  
Modified Model ◽  
Air Discharge

scholarly journals Dynamics of flow in albumin solution treated by low-temperature atmospheric pressure helium plasma jet

AIP Advances ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 125216
Author(s):  
Tetsuji Shimizu ◽  
Hiromasa Yamada ◽  
Masanori Fujiwara ◽  
Susumu Kato ◽  
Yuzuru Ikehara ◽  
...  
Keyword(s):  
Low Temperature ◽  
Atmospheric Pressure ◽  
Plasma Jet ◽  
Helium Plasma ◽  
Albumin Solution ◽  
Solution Treated

scholarly journals Low temperature plasma RF capacitive discharge in helium at atmospheric pressure

2016 ◽  
Vol 669 ◽  
pp. 012022 ◽  
Author(s):  
A Hakki ◽  
I Fayrushin ◽  
N Kashapov
Keyword(s):  
Low Temperature ◽  
Atmospheric Pressure ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Capacitive Discharge

High phosphorus doping of epitaxial silicon at low temperature and atmospheric pressure

1991 ◽  
Vol 58 (17) ◽  
pp. 1896-1898 ◽  
Author(s):  
T. O. Sedgwick ◽  
P. D. Agnello ◽  
D. Nguyen Ngoc ◽  
T. S. Kuan ◽  
G. Scilla
Keyword(s):  
Low Temperature ◽  
Atmospheric Pressure ◽  
Epitaxial Silicon ◽  
Phosphorus Doping ◽  
High Phosphorus

The Effect of Ge Segregation on Oxidation of Si

1987 ◽  
Vol 105 ◽  
Author(s):  
E. C. Frey ◽  
N. R. Parikh ◽  
M. L. Swanson ◽  
M. Z. Numan ◽  
W. K. Chu
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Epitaxial Layer ◽  
Atmospheric Pressure ◽  
Oxidation Rate ◽  
Oxidation Temperature ◽  
Pressure Oxidation ◽  
Enhanced Oxidation ◽  
High Pressure Oxidation

AbstractWe have studied oxidation of various Si samples including: Ge implanted Si, CVD and MBE grown Si(0.4–4% Ge) alloys, and MBE grown Si-Si(Ge) superlattices. The samples were oxidized in pyrogenic steam (800–1000°C, atmospheric pressure) and at low temperature and high pressure (740°C, 205 atm of dry O2). The oxidized samples were analyzed with RBS/channeling and ellipsometry.An enhanced oxidation rate was seen for all Ge doped samples, compared with rates for pure Si. The magnitude of the enhancement increased with decreasing oxidation temperature. For steam oxidations the Ge was segregated from the oxide and formed an epitaxial layer at the Si-SiO2 interface; the quality of the epitaxy was highest for the highest oxidation temperatures. For high pressure oxidation the Ge was trapped in the oxide and the greatest enhancement in oxidation rate (>100%) was observed.

CO2 hydrogenation into CH4 over Ni–Fe catalysts

2018 ◽  
Vol 11 (03) ◽  
pp. 1850057 ◽  
Author(s):  
Reza Meshkini Far ◽  
Olena V. Ischenko ◽  
Alla G. Dyachenko ◽  
Oleksandr Bieda ◽  
Snezhana V. Gaidai ◽  
...  
Keyword(s):  
Low Temperature ◽  
Synergistic Effect ◽  
Atmospheric Pressure ◽  
High Efficiency ◽  
Co2 Hydrogenation ◽  
Hydrogenation Catalysts ◽  
Fe Catalysts ◽  
First Time ◽  
Supported Ni ◽  
Hydrogenation Of Co

Here, we report, for the first time, on the catalytic hydrogenation of CO2 to methane at atmospheric pressure. For the preparation of hydrogenation catalysts based on Ni and Fe metals, a convenient method is developed. According to this method, low-temperature reduction of the co-precipitated Ni and Fe oxides with hydrogen gives the effective and selective bimetallic Ni[Formula: see text]Fe[Formula: see text], Ni[Formula: see text]Fe[Formula: see text] and Ni[Formula: see text]Fe[Formula: see text] catalysts. At the temperature range of 300–400[Formula: see text]C, they exhibit a high efficiency of CH4 production with respect to monometallic Ni and Fe catalysts. The results imply a synergistic effect between Ni and Fe which caused the superior activity of the Ni[Formula: see text]Fe[Formula: see text] catalyst conversing [Formula: see text]% of CO2 into CH4 at 350[Formula: see text]C. To adapt the Ni–Fe catalysts in the industry, the effect of two different carriers on the efficiency of the alumina-supported Ni[Formula: see text]Fe[Formula: see text] catalyst was investigated. It is found that the Ni[Formula: see text]Fe[Formula: see text]/[Formula: see text]-Al2O3 catalyst effectively conversed CO2 giving 100% methane yield already at 275[Formula: see text]C.

Low-temperature synthesis of copper sulfide nano-crystals of novel morphologies by hydrothermal process

2007 ◽  
Vol 61 (28) ◽  
pp. 5029-5032 ◽  
Author(s):  
Jing Zou ◽  
Jianxue Zhang ◽  
Baohua Zhang ◽  
Pingtang Zhao ◽  
KaiXun Huang
Keyword(s):  
Low Temperature ◽  
Copper Sulfide ◽  
Hydrothermal Process ◽  
Low Temperature Synthesis ◽  
Temperature Synthesis

Research of Water Damage Resistance Performance of CAM in Low Temperature Condition

2013 ◽  
Vol 723 ◽  
pp. 157-162
Author(s):  
Jian Li ◽  
Qu Chao ◽  
He Ping
Keyword(s):  
Low Temperature ◽  
Atmospheric Pressure ◽  
Asphalt Pavement ◽  
Natural World ◽  
Chloride Salt ◽  
The Road ◽  
Normal Atmospheric Pressure ◽  
Water Damage ◽  
Resistance Performance ◽  
Complex Polymer

Under normal atmospheric pressure conditions, volume suddenly increases about 11% when the water freezes and decreased when the ice melts. The pressure can reach up to 2500 times of atmospheric pressure in the closed space when the water freezing. This is a very important characteristic of the natural world and the industrial. In low temperature condition, the snow on the pavement is easy to melt and freeze, and it will affect the road safety, increase the cracking of the road and accelerate asphalt pavement water damage. Bitumen is a mixture consisting of some extremely complex polymer hydrocarbons and hydrocarbon derivatives of non-metallic (oxygen, sulfur, nitrogen). Deicing salt is used to prevent freezing in that area, chloride salt is its main ingredient. When the water melting point reduced, it is not easy to icing but to penetrate the asphalt pavement. If the temperature is continued to reduce, salt solution will still freezing. At last, the pavement will form water damage in repeated freeze-thaw cycles conditions.

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