Control of pore size and introduction of fanctional group on the surface of porous carbon by CVD

CVD法控制多孔碳表面的孔径和官能团的引入

• 批准号: 09450019
• 负责人: MOCHIDA Isao
• 金额: $ 9.15万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B).
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-09450019/
• 关键词: CVD; molecular sieve; activated carbon; micropore; pore size; benzene; pyridine; mesopore; モレキュラーシーブ; 活性炭素繊維; ミクロへキサン; ベンゾチオフェン; 二酸化炭素; メタン; 表面積; 吸着; 賦活; 活性化; 炭素; 表面官能基

Pore size control of a series of active carbon fibers was attempted by CVD of benzene to clarify the influences of the pore distribution. Weight increase by CVD was found saturated at the certain level respective to the fiber, reflecting the their surface areas. However, the molecular sieving selectivity between CO_2 and CH_4 was induced only to the fibers of smaller surface area, while the fibers of larger surface areas lost the adsorption activity against both gases. Straight micropores developed from the surface are controlled at their slit size by carbon deposition onto the wall surface while benzene molecule can get into the pore. In contrast, the pore size of micropores developed on the wall of mesopore are difficult to be controlled since the carbon deposit continues until the whole wall of the mesopores is covered by the carbon to plug the micropores.

采用苯化学气相沉积法对一系列活性炭纤维进行了孔径控制，探讨了孔径分布对活性炭纤维孔径的影响。通过CVD的重量增加被发现在一定水平上饱和，相应于纤维，反映了它们的表面积。但只有比表面积较小的纤维才具有对CO_2和CH_4的分子筛选择性，而比表面积较大的纤维则失去了对这两种气体的吸附活性。碳沉积在孔壁表面，控制从表面延伸的直孔的狭缝尺寸，而苯分子可以进入孔中。相比之下，在中孔壁上形成的微孔的孔径难以控制，因为碳存款持续直到中孔的整个壁被碳覆盖以堵塞微孔。

项目成果

I.Mochida 他: "Oxidative Fixation of SO_2 into Aqueous H_2SO_4 over a Pitch-Based Active Carbon Fiber above Room Temperature"Energy & Fuels. 13・2. 374-378 (1999)

I. Mochida 等人：“室温以上在沥青基活性碳纤维上将 SO_2 氧化固定到 H_2SO_4 中”能源与燃料 13・2（1999）。

I.Mochida 他: "Catalytic Dehydrochlorination of 1,2-Dichloroethane into Vinyl Chloride over Polyacrylonitrile-Based Active Carbon Fiber"Applied Catalysis A : General. 180. 317-323 (1999)

I. Mochida 等人：“在聚丙烯腈基活性碳纤维上将 1,2-二氯乙烷催化脱氯化氢成氯乙烯”，应用催化 A：综述 180. 317-323 (1999)。

I.Mochida, et al.: "Oxidative Fixation of SO_2 into Aqueous H_2SO_4 over a Pitch-Based Active Carbon Fiber above Room Temperature"Energy & Fuels. 13・2. 374-378 (1999)

I. Mochida 等人：“室温以上在沥青基活性碳纤维上将 SO_2 氧化固定到 H_2SO_4 中”能源与燃料 13・2（1999）。

T.Miyazaki 他: "Catalytic Activity of Potassium Sulfate and Chloride Supported on Perovskite Type Oxide for the Gasification of Carbon Particles"Energy & Fuels. 12. 612-616 (1998)

T. Miyazaki 等人：“钙钛矿型氧化物负载的硫酸钾和氯化物对碳颗粒气化的催化活性”能源与燃料。 12. 612-616 (1998)

Y.Kawabuchi: "Chemical Vapor Deposition of Heterocyclic Compounds over Active Carbon Fiber To Control Its Porosity and Surface Function" Langmuir. Vol.13,No.8. 2314-2317 (1997)

Y.Kawabuchi：“杂环化合物在活性碳纤维上的化学气相沉积以控制其孔隙率和表面功能”Langmuir。