课题基金 / 基金详情

)Preparation of ordered macroporous carbons by using ice crystal growth and control of their hierarchical structure

)Preparation of ordered macroporous carbons by using ice crystal growth and control of their hierarchical structure
)利用冰晶生长制备有序大孔碳并控制其分级结构
批准号:
20360349
负责人:
TAMON Hajime
金额:
$12.15万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (B)
财政年份:
2008
资助国家:
日本
项目状态:
已结题
起止时间:
2008 至 2010

项目摘要

项目成果

TAMON Hajime的其他基金

相关文献

中文摘要
翻译
以间苯二酚和甲醛为原料,通过溶胶-凝胶缩聚、单向冷冻、冷冻干燥、热解等工艺制备了碳冷冻微蜂窝。CMHS具有大孔和中孔/微孔的分级结构。然而,CMHS的孔隙率低于传统方法制备的碳冷冻胶。研究了冷冻、HCl老化或CO2活化对CMHS多孔性能的影响。冷冻操作大大减少了CMHS的中孔体积。由于冷冻操作是制备CMHS不可缺少的步骤,因此其孔隙率应在形成蜂窝结构后形成。有机微孔蜂窝的HCl老化可形成CMHS的微孔或中孔。CO2活化对提高CMHS的孔隙率非常有利,因为活化过程中保留了蜂窝结构。将间苯二酚-甲醛水凝胶的合成条件与CO_2活化条件相结合,可以制备出介孔发达的CMH。将炭黑在硅溶胶中减压浸泡,通过单向冷冻、溶剂交换、冷冻干燥等方法制备了碳-二氧化硅复合材料。通过单向冷冻,可以在CMHS内部形成硅胶蜂窝或纤维状硅胶。实验结果表明,以胶体白炭黑为原料制备硅胶,可制得结晶度高、抗压强度高的碳-白炭黑复合材料。
英文摘要
Carbon cryogel microhoneycombs (CMHs) were prepared via sol-gel polycondensation of resorcinol with formaldehyde, unidirectional freezing, freeze drying and pyrolysis. CMHs had a hierarchical structure of macropores and meso/micropores. However, the porosity of CMHs was lower than that of carbon cryogels prepared by a conventional method. The influence of freezing, HCl aging or CO_2 activation on their porous properties of CMHs was studied. The freezing operation greatly decreased the mesopore volume of CMHs. Since the freezing operation was indispensable to the preparation of CMHs, their porosity should be developed after the formation of honeycomb structure. The HCl aging of organic microhoneycombs could develop micropores or mesopores of CMHs. CO_2 activation was extremely useful for improving porosity of CMHs because the honeycomb structure was kept during activation. The CMH whose mesoporosity was much developed could be prepared by the combination of synthesis conditions of resorcinol-formaldehyde hydrogels and CO_2 activation. The CMHs were also immersed in silica sol under reduced pressure, and the carbon-silica composites were prepared via unidirectional freezing, solvent exchange and freeze drying. Silica gel honeycombs or fibrous silica gels could be formed inside the CMHs by unidirectional freezing. The experimental results suggested that the carbon-silica composites with high crystalinity and high compressive strength were prepared in the case where colloidal silica was used as a raw material for silica gels.
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DOI: --
发表时间: 2009
期刊:
影响因子: --
作者: [川口建二, Jacek Jaworski, 石川善恵, 佐々木毅, 越崎直人, 田門肇]
通讯作者: 田門肇
HCl treatment on micropore and mesopore structures of carbon cryogels from resorcinol and formaldehyde
HCl 处理间苯二酚和甲醛碳冷冻凝胶的微孔和中孔结构
DOI: --
发表时间: 2011
期刊: J.Chem.Eng.Jpn Vol.44
影响因子: --
作者: [K.Kraiwattanawong, H.Tamon, P.Praserthdam]
通讯作者: P.Praserthdam
Synthesis and Applications of Nanoporouns Carbon Materials
纳米多孔碳材料的合成及应用
DOI: --
发表时间: 2008
期刊:
影响因子: --
作者: [Hajime Tamon]
通讯作者: Hajime Tamon
Thermal-processing study for tuning the porous properties of carbon cryogels
调节碳冷冻凝胶多孔性能的热处理研究
DOI: --
发表时间: 2010
期刊:
影响因子: --
作者: [K.Kraiwattanawong, H.Tamon, R.Praserthdam]
通讯作者: R.Praserthdam
11
    Development of high-strength fabrication method of porous particulates by gelation of organic slurry and control method of porous structure
    • 批准号:
      26630389
    • 项目类别:
      Grant-in-Aid for Challenging Exploratory Research
    • 资助金额:
      $2.5万
    • 财政年份:
      2014
    • 负责人:
      TAMON Hajime
    • 依托单位:
    Synthesis of high-strength tissue invasive bone substitute materials by unidirectional freezing and development of control method of their porous structure
    • 批准号:
      24656468
    • 项目类别:
      Grant-in-Aid for Challenging Exploratory Research
    • 资助金额:
      $2.58万
    • 财政年份:
      2012
    • 负责人:
      TAMON Hajime
    • 依托单位:
    Development of novel preparation method for monolithic and fibrous zeolites by unidirectional freezing of gels
    • 批准号:
      23360342
    • 项目类别:
      Grant-in-Aid for Scientific Research (B)
    • 资助金额:
      $12.4万
    • 财政年份:
      2011
    • 负责人:
      TAMON Hajime
    • 依托单位:
    Development of Electrode for Super Capacitor by Using Carbon Gels with Hieratically Controlled Porous Structure
    • 批准号:
      18360380
    • 项目类别:
      Grant-in-Aid for Scientific Research (B)
    • 资助金额:
      $10.64万
    • 财政年份:
      2006
    • 负责人:
      TAMON Hajime
    • 依托单位: