Vapor Phase Synthesis of Nanofibrous Carbon Materials from Water-Ethanol Mixtures

A. N. Redkin; V. A. Kipin

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Vapor Phase Synthesis of Nanofibrous Carbon Materials from Water-Ethanol Mixtures

机译：从水-乙醇混合物气相合成纳米纤维碳材料

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We present a detailed study of the pyrolytic synthesis of nanofibrous carbon materials (NCMs) from ethanol and various water-ethanol mixtures on a nickel catalyst at temperatures from 400 to 700℃. In the synthesis from 96% ethanol, the initial deposition rate increases with temperature, but this is accompanied by a substantial decrease in catalyst life. The addition of water to the reaction system considerably increases the catalyst life. One possible reason for this is that water vapor prevents carbonization of the catalyst particles. At the same time, above 600℃ the rate of NCM deposition from a 50% water-ethanol mixture is considerably slower. At 550℃ and lower temperatures, the rate of NCM deposition from water-ethanol mixtures (based on ethanol consumption) changes insignificantly. Our results demonstrate that NCMs can be synthesized even from very dilute (down to 10 vol %) aqueous ethanol solutions. The participation of water vapor in chemical processes that take place in the reaction zone is discussed.

机译：我们提供了在400至700℃的温度下，在镍催化剂上由乙醇和各种水-乙醇混合物热解合成纳米纤维碳材料（NCM）的详细研究。在由96％乙醇合成的过程中，初始沉积速率会随温度的升高而增加，但同时催化剂寿命也会大大缩短。将水添加到反应系统中大大增加了催化剂寿命。一个可能的原因是水蒸气阻止了催化剂颗粒的碳化。同时，在600℃以上，由50％的水-乙醇混合物沉积NCM的速度要慢得多。在550℃和更低的温度下，水-乙醇混合物中NCM的沉积速率（基于乙醇消耗量）变化不大。我们的结果表明，即使从非常稀（低至10 vol％）的乙醇水溶液中也可以合成NCM。讨论了水蒸气参与反应区中发生的化学过程的过程。

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《Inorganic materials》 |2009年第9期|982-987|共6页
作者
A. N. Redkin; V. A. Kipin;
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作者单位

Institute of Microelectronics Technology and High-Purity Materials, Russian Academy of Sciences, Institutskava ul. 6, Chernogolovka, Moscow oblast, 142432 Russia;

Institute of Microelectronics Technology and High-Purity Materials, Russian Academy of Sciences, Institutskava ul. 6, Chernogolovka, Moscow oblast, 142432 Russia;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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正文语种 eng
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7. ABSTRACTudThe purpose of this research is to obtain an optimal formulations of Black mulberry leaves dried noodle product by using Design Expert Application with Design Mixture D-optimal method.udThis research was done with two phases. The preliminary procedures research is to determine levels of antioxidant activity, chlorophyll content, and the levels of tannin that was contained in black mulberry leaves, the black mulberry leaf flour, a pare fruits, and pare flour. Primary research is to determine the best formulation by using a Mixture Design Expert Design D-optimal method, for a purpose is to optimized the Black mulberry leaf dry noodle. Responses in this studies are a chemical analysis response by using a crude fiber analysis and protein analysis. Physical response is water absorption. Sensory response are color, flavor, and odor.udBlack mulberry leaves dried noodles was made from wheat flour, black mulberry leaf flour, and pare flour, other materials such as an eggs, water, salt, and sodium bicarbonate, of the 16 formulations that has offered to produce an optimal formulation based on desirability which contains 39.69 Flour,14.25 Black Mulberry Leaves flour, 3.06 Pare fruit and flour amounted, and other materials are 30 water, 10 eggs, 2 salt, and 1 sodium bicarbonate. The formulation has been result by program 11,05 crude fiber content, 12.93 protein, 274.31 water absorption, 4,31 for color attribute, 3,87 for taste attribute, and 3,71 for aroma attribute.ududKeyword: Black mulberry leaf dried noodles, optimization. [O] . Leti Nurlatifah Alumni, Yudi Garnida DS, Tantan Widiantara DS 2017

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机译：富燃料烃混合物的低温，气相氧化

Vapor Phase Synthesis of Nanofibrous Carbon Materials from Water-Ethanol Mixtures

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