Preparation of porous carbons from halloysite-sucrose mixtures
文献类型：期刊论文
| 作者 | Wang, Ai-Ping; Kang, Feiyu; Huang, Zheng-Hong; Guo, Zhancheng |
| 刊名 | CLAYS AND CLAY MINERALS
 |
| 出版日期 | 2006-08-01 |
| 卷号 | 54期号:4页码:485-490 |
| 关键词 | adsorption electron microscopy natural clay pore volume pore-size distribution porous carbon |
| ISSN号 | 0009-8604 |
| 其他题名 | Clay Clay Min. |
| 中文摘要 | Porous carbons rich in mesopores and with large pore volumes have been prepared by polymerization and carbonization of a carbon precursor, sucrose, within a matrix of the natural clay, halloysite. The carbon precursor was impregnated into the pores of halloysite and mostly deposited on the external surface of the halloysite rods during impregnation. The inorganic matrix was removed by washing the carbon-mineral composite with HF and HCl. The resultant carbons were characterized by nitrogen adsorption analysis and were found to possess a large specific surface area, a large total pore volume and significant mesoporosity, without an activation process being involved. The pore volume and mesoporosity were up to 1.86 cm 3/g and 78%, respectively, even at low carbonization temperatures (500 degrees C). The size of the mesopores of the resultant carbons is mainly between 3 and 30 nm and the dominant pore size is similar to 3.7 nm. The carbonization temperature has significant effects on the pore-size distribution and structure of the resultant carbons and carbon-mineral composites, respectively. This process is relatively simple and expected to cost less than the high-temperature carbonization process in the preparation of mesoporous carbons with total pore volume and large specific surface areas. |
| 英文摘要 | Porous carbons rich in mesopores and with large pore volumes have been prepared by polymerization and carbonization of a carbon precursor, sucrose, within a matrix of the natural clay, halloysite. The carbon precursor was impregnated into the pores of halloysite and mostly deposited on the external surface of the halloysite rods during impregnation. The inorganic matrix was removed by washing the carbon-mineral composite with HF and HCl. The resultant carbons were characterized by nitrogen adsorption analysis and were found to possess a large specific surface area, a large total pore volume and significant mesoporosity, without an activation process being involved. The pore volume and mesoporosity were up to 1.86 cm 3/g and 78%, respectively, even at low carbonization temperatures (500 degrees C). The size of the mesopores of the resultant carbons is mainly between 3 and 30 nm and the dominant pore size is similar to 3.7 nm. The carbonization temperature has significant effects on the pore-size distribution and structure of the resultant carbons and carbon-mineral composites, respectively. This process is relatively simple and expected to cost less than the high-temperature carbonization process in the preparation of mesoporous carbons with total pore volume and large specific surface areas. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine |
| 类目[WOS] | Chemistry, Physical ; Geosciences, Multidisciplinary ; Mineralogy ; Soil Science |
| 研究领域[WOS] | Chemistry ; Geology ; Mineralogy ; Agriculture |
| 关键词[WOS] | ORDERED MESOPOROUS CARBONS ; PORE STRUCTURE ; TEMPLATES ; POROSITY |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000240329900009 |
| 公开日期 | 2013-10-24 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/4050]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Tsing Hua Univ, Dept Mat Sci & Engn, Adv Mat Lab, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China 3.Grad Univ, Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Ai-Ping,Kang, Feiyu,Huang, Zheng-Hong,et al. Preparation of porous carbons from halloysite-sucrose mixtures[J]. CLAYS AND CLAY MINERALS,2006,54(4):485-490. |
| APA | Wang, Ai-Ping,Kang, Feiyu,Huang, Zheng-Hong,&Guo, Zhancheng.(2006).Preparation of porous carbons from halloysite-sucrose mixtures.CLAYS AND CLAY MINERALS,54(4),485-490. |
| MLA | Wang, Ai-Ping,et al."Preparation of porous carbons from halloysite-sucrose mixtures".CLAYS AND CLAY MINERALS 54.4(2006):485-490. |
入库方式： OAI收割
来源：过程工程研究所
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