scholarly journals Catalytic gasification of carbon. I. Chemical states of alkali metal catalysts in the reactions of highly pure and amorphous carbon with steam or carbon dioxide.

1986 ◽  
Vol 65 (6) ◽  
pp. 400-407 ◽  
Author(s):  
Takaji KANAZUKA ◽  
Keikichi FUJIKAWA ◽  
Hisao KANOH ◽  
Koshiro MIYAHARA
Keyword(s):  
Carbon Dioxide ◽  
Alkali Metal ◽  
Amorphous Carbon ◽  
Metal Catalysts ◽  
Catalytic Gasification ◽  
Chemical States ◽  
Gasification Of Carbon

Catalytic gasification of carbon: Method for the determination of the activity of alkali metal catalysts in the gasification of highly pure amorphous and graphitic carbons with steam

1989 ◽  
Vol 50 (1) ◽  
pp. 199-210 ◽  
Author(s):  
Keikichi Fujikawa ◽  
Akihito Hayashi ◽  
Hirotoshi Tanaka ◽  
Takaji Kanazuka ◽  
Toru Kanno ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Metal Catalysts ◽  
Catalytic Gasification ◽  
Gasification Of Carbon

Alkali metal catalyzed carbon dioxide gasification of carbon

1992 ◽  
Vol 6 (4) ◽  
pp. 343-351 ◽  
Author(s):  
Toshimitsu Suzuki ◽  
Hiroyuki Ohme ◽  
Yoshihisa Watanabe
Keyword(s):  
Carbon Dioxide ◽  
Alkali Metal ◽  
Gasification Of Carbon ◽  
Metal Catalyzed ◽  
Carbon Dioxide Gasification

Catalytic gasification of carbon with steam, carbon dioxide and hydrogen

Carbon ◽  
1977 ◽  
Vol 15 (2) ◽  
pp. 103-106 ◽  
Author(s):  
Yasukatsu Tamai ◽  
Haruo Watanabe ◽  
Akira Tomita
Keyword(s):  
Carbon Dioxide ◽  
Catalytic Gasification ◽  
Gasification Of Carbon

scholarly journals Green synthesis of graphite from CO2 without graphitization process of amorphous carbon

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Chu Liang ◽  
Yun Chen ◽  
Min Wu ◽  
Kai Wang ◽  
Wenkui Zhang ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Transition Metal ◽  
Amorphous Carbon ◽  
Low Temperatures ◽  
Lithium Aluminum Hydride ◽  
Rate Capability ◽  
Aluminum Hydride ◽  
Metal Catalysts ◽  
Transition Metal Catalysts ◽  
Lithium Aluminum

AbstractEnvironmentally benign synthesis of graphite at low temperatures is a great challenge in the absence of transition metal catalysts. Herein, we report a green and efficient approach of synthesizing graphite from carbon dioxide at ultralow temperatures in the absence of transition metal catalysts. Carbon dioxide is converted into graphite submicroflakes in the seconds timescale via reacting with lithium aluminum hydride as the mixture of carbon dioxide and lithium aluminum hydride is heated to as low as 126 °C. Gas pressure-dependent kinetic barriers for synthesizing graphite is demonstrated to be the major reason for our synthesis of graphite without the graphitization process of amorphous carbon. When serving as lithium storage materials, graphite submicroflakes exhibit excellent rate capability and cycling performance with a reversible capacity of ~320 mAh g–1 after 1500 cycles at 1.0 A g–1. This study provides an avenue to synthesize graphite from greenhouse gases at low temperatures.

In Situ Observation of Catalyzed Gasification of Graphite by Nickel

1981 ◽  
Vol 39 ◽  
pp. 76-77
Author(s):  
R. T. K. Baker ◽  
R. D. Sherwood
Keyword(s):  
Objective Lens ◽  
In Situ Observation ◽  
Gas Flows ◽  
Catalytic Gasification ◽  
Television Camera ◽  
Viewing Screen ◽  
Fuels And Chemicals ◽  
Gasification Of Carbon ◽  
Transmission Microscope

The catalytic gasification of carbon at high temperature by microscopic size metal particles is of fundamental importance to removal of coke deposits and conversion of refractory hydrocarbons into fuels and chemicals. The reaction of metal/carbon/gas systems can be observed by controlled atmosphere electron microscopy (CAEM) in an 100 KV conventional transmission microscope. In the JEOL gas reaction stage model AGl (Fig. 1) the specimen is positioned over a hole, 200μm diameter, in a platinum heater strip, and is interposed between two apertures, 75μm diameter. The control gas flows across the specimen and exits through these apertures into the specimen chamber. The gas is further confined by two apertures, one in the condenser and one in the objective lens pole pieces, and removed by an auxiliary vacuum pump. The reaction zone is <1 mm thick and is maintained at gas pressure up to 400 Torr and temperature up to 1300<C as measured by a Pt-Pt/Rh 13% thermocouple. Reaction events are observed and recorded on videotape by using a Philips phosphor-television camera located below a hole in the center of the viewing screen. The overall resolution is greater than 2.5 nm.

Alkali hexatitanate photocatalysts with various morphologies for selective reduction of carbon dioxide by water

2021 ◽  
Author(s):  
XING· ZHU ◽  
Akira Yamamoto ◽  
Hisao Yoshida
Keyword(s):  
Carbon Dioxide ◽  
Alkali Metal ◽  
Selective Reduction ◽  
Photocatalytic Reduction

Various alkali-metal hexatitanate photocatalysts were examined for photocatalytic reduction of carbon dioxide with water. Four types of alkali-metal hexatitanate samples (A2Ti6O13, A=Na, K, Rb, and Cs) were successfully prepared by...

Catalytic gasification of carbon in a direct carbon fuel cell

Fuel ◽  
2016 ◽  
Vol 180 ◽  
pp. 270-277 ◽  
Author(s):  
Adam C. Rady ◽  
Sarbjit Giddey ◽  
Aniruddha Kulkarni ◽  
Sukhvinder P.S. Badwal ◽  
Sankar Bhattacharya
Keyword(s):  
Fuel Cell ◽  
Catalytic Gasification ◽  
Direct Carbon Fuel Cell ◽  
Gasification Of Carbon
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