Highly Effective Utilization of Microporous Carbon with Structural Regularity of Zeolite

沸石结构规则的微孔碳的高效利用

• 批准号: 13650825
• 负责人: KYOTANI Takashi
• 金额: $ 2.24万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13650825/
• 关键词: zeolite; porous carbon; template carbonization; methane storage; electro double layer capacitor; 電気重層キャパシタ

High surface area microporous carbons with a long-range ordering could be synthesized by using zeolite Y as a template. In this work, an attempt is made to synthesize porous carbon using several other types of zeolites (zeolite b, ZSM-5, mordenite and zeolite L). Special attention is paid to whether the structural regularity of each zeolite can be transferred to carbon structure as well as with the case of zeolite Y. It is then examined which carbon filling method gives the highest regularity to the carbon structure. It has found that the optimum carbon filling method for zeolite Y is not an optimum one for the other zeolites and the degree of the regularity of long-range ordering in the carbons strongly depends on zeolite type. The order of the regularity in the resultant carbons is zeolite b >> zeolite L > mordenite > ZSM-5. The effect of zeolite type on the regularity is closely related to the size and the shape of the zeolite channels.Extraordinary feature of the microporous carbon … More s prepared from zeolite Y is that mesopore volume is quite small in comparison with micropore volume, which is one of the necessary characteristics for methane storage media. Another feature is the predominance of large micropores such as supermicropore (size between 0.7 and 2 nm) in these carbons. It is well-known that theoretically such large micropore is favorable rather than the narrow micropore for high storage capacity of methane. Thus the present microporous carbons prepared by the template technique have great potential as methane storage media.The amounts of methane adsorbed at 3.5 MPa and 25 ℃ were measured to be 0.255 g/g of carbon, which is probably the largest one among the values reported so far. From practical point of view, methane uptake should be evaluated in terms of adsorption per unit volume. Since the present carbons cannot be pelletized without a binder, the volumetric uptake was not determined in this phase. Pelletizing using a binder and the measurement of volumetric methane uptake are now under investigation. As well as the application to methane storage media, the microporous carbons prepared from zeolite Y showed high performance in the application to super capacitor. Less

以Y型分子筛为模板剂，可以合成出长程有序的高比表面积微孔炭。在这项工作中，尝试使用几种其他类型的沸石（沸石B、ZSM-5、丝光沸石和沸石L）来合成多孔碳。特别注意的是，是否每个沸石的结构规则性可以转移到碳结构，以及与沸石Y的情况。然后检查哪种碳填充方法对碳结构提供最高的规则性。发现Y型沸石的最佳填碳方法并不是其它沸石的最佳填碳方法，碳中长程有序的规则程度强烈地依赖于沸石类型。所得碳的规则性顺序为沸石B >沸石L >丝光沸石> ZSM-5。沸石类型对规整性的影响与沸石孔道的大小和形状密切相关。微孔炭的特殊性 ...更多信息 由Y型沸石制备的甲烷存储介质的最大特点是中孔体积相对于微孔体积较小，这是甲烷存储介质的必要特征之一。另一个特征是在这些碳中大微孔如超孔（尺寸在0.7和2nm之间）占优势。众所周知，从理论上讲，这种大的间隙比窄的间隙更有利于甲烷的高储存容量。在3.5MPa和25 ℃下，甲烷的吸附量为0.255g/g炭，这可能是目前报道的最大吸附量。从实用的角度来看，甲烷吸收应以单位体积的吸附量来评价。由于本发明的碳不能在没有粘合剂的情况下造粒，因此在该阶段中未测定体积吸收。目前正在研究使用粘合剂的造粒和测量体积甲烷吸收量。除了在甲烷存储介质中的应用外，以Y型分子筛为原料制备的微孔炭在超级电容器中的应用也显示出了良好的性能。少

项目成果

Takashi Kyotani, Zhixin Ma, Akira Tomita: "Template synthesis of novel porous carbons using various types of zeolites"Carbon. 41(7). 1451-1459 (2003)

Takashi Kyotani、Zhixin Ma、Akira Tomita：“使用各种类型沸石的新型多孔碳的模板合成”Carbon。

Z.-X.Ma, T.Kyotani*, A.Tomita: "Synthesis methods for preparing microporous carbons with a structural regularity of zeolite Y"Carbon. 40(13). 2367-2374 (2002)

Z.-X.Ma、T.Kyotani*、A.Tomita：“制备具有沸石 Y 结构规律的微孔碳的合成方法”Carbon。

Z.-X. Ma, T. Kyotani^*, A. Tomita: "Synthesis methods for preparing microporous carbons with a structural regularity of zeolite Y"Carbon. 40(13). 2367-2374 (2002)

Z.-X。

Zhixin Ma, Takashi Kyotani et al.: "Very high surface area microporous carbon with a three-dimensional nano-array structure : Synthesis and its molecular structure"Chemistry of Materials. 13・12. 4413-4415 (2001)

马志新、京谷隆等：“具有三维纳米阵列结构的超高表面积微孔碳：合成及其分子结构”材料化学13・12（2001）。

Z.-X.Ma, T.Kyotani^*, Z.Liu, O.Terasaki, A.Tomita: "Very High Surface Area Microporous Carbon with Three-Dimensional Nano-Array Structure, Synthesis and Its Molecular Structure"Chemistry of Materials. 13(12). 4413-4415 (2001)

Z.-X.Ma、T.Kyotani^*、Z.Liu、O.Terasaki、A.Tomita：“具有三维纳米阵列结构的超高表面积微孔碳、合成及其分子结构”材料化学