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meso-porous silicon-coated carbon nanotube as an anode for lithium-ion battery

Nano Research 2016年第7期9卷 2174-2181页

作者： Won-Sik Kim Jonghyun Choi Seong-Hyeon Hong Department of Materials Science and Engineering and Research Institute of Advanced Materials Seoul National University Seoul 151-744 Republic of Korea

meso-porous Si-coated carbon nanotube （CNT） composite powders were prepared by combining a sol-gel method and the magnesiothermic reduction process. meso-porous Si-coated CNT electrodes exhibit excellent cycle and rate performances as anodes in Li-ion batteries （LIBs）, which can be attributed to the efficient accommodation of volume change from meso-porous Si structure and the enhanced electrical conductivity from CNT core. This simple synthesis and subsequent reduction process provide a scalable route for the large-scale production of Si-C composite nanostructures, which can be utilized in a variety of applications, such as in photocatalysis, photoelectrochemical cells （PECs）, and LIBs.

关键词： meso-porous carbon nanotube (CNT) magnesiothermic reduction battery

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Fabrication and characterization of novel meso-porous carbon/n-octadecane as form-stable phase change materials for enhancement of phase-change behavior

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Journal of Materials Science & Technology 2019年第5期35卷 939-945页

作者： Yurong Liu Yongpeng Xia Kang An Chaowei Huang Weiwei Cui Sheng Wei Rong Ji Fen Xu Huanzhi Zhang Lixian Sun School of Material Science & Engineering Guilin University of Electronic Technology Guilin 541004 China Guangxi Key Laboratory of Information Materials and Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials Guilin University of Electronic Technology. Guilin 541004 China

In this study, series of novel composite phase change materials(PCMs) were prepared through vacuum impregnation by using meso-porous carbon as a supporting matrix and n-octadcane as *** meso-porous carbon material was prepared through one-pot co-assembly method, using resorcinol and formaldehyde as carbon precursor, tetraethoxysilane as silica sources and triblock copolymer F127 as a template. And the phase behaviors of n-octadcane confined in the nano-porous structure of the meso-porous carbon were further investigated. Fourier transform-infrared spectroscopy spectra show that n-octadecane was effectively encapsulated in the porous structure of mesoporous carbon and the composite PCMs were successfully prepared. Differential scanning calorimetry results confirm that the composite PCMs possess a good phase change behavior, fast thermal-response rate and excellent thermal cycling stability. In addition, the composite PCMs possess expected heat storage and heat release properties. All these results demonstrate that the composite PCMs possess good comprehensive property so that they can be used widely in energy storage systems.

关键词： Phase change materials meso-porous carbon Microstructure Thermal performance

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Synthesis of Pt-SnOx/TS-1@SBA-16 Composites and Their High Catalytic Performance for Propane Dehydrogenation

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Chemical Research in Chinese Universities 2019年第5期35卷 866-873页

作者： LI Hongda ZHAO Zhen LI Jiacheng LI Jianmei ZHAO Linlin SUN Jiachen FAN Xiaoqiang State Key Laboratory of Heavy Oil Processing China University of PetroleumBeijing 102249P.R.China Institute of Catalysis for Energy and Environment College of Chemistry and Chemical EngineeringShenyang Normal UniversityShenyang 110034P.R.China

A novel composite material of TS-1@SBA-16 was synthesized by enwrapping TS-1 zeolite crystals with mesoporous SBA-16 silica. This composite was used as catalyst support for loading Pt-SnOx in the propane dehydr genation(PDH) reaction. Catalysts were characterized by means ofN2 adsorption-desorption, XRD, SEM, TEM, XPS, UV-Vis, and Raman spectroscopy. The effect of different contents of TS-1 on PDH was investigated, and the optimal amount of TS-1 was determined to be 10%. The catalyst with TS-1 content of 10% showed the highest PDH activity and the initial conversion of propane over it can achieve 54.5%, higher than those over TS-1 or SB A-16-supported ones. The superior catalytic performance of Pt-SnOx/TS-1 @SBA-16 is related to the synergistic effect of the excellent mass transfer performance through the hierarchical porous structure, suitable acid acidity and electronic effect of Ti species.

关键词： Catalyst Pt-SnOx Propane Dehydrogenation TS-1 zeolite Micro- and meso-porous material

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介孔碳/硅复合负极材料

介孔碳/硅复合负极材料

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2014年全国高分子材料科学与工程研讨会

作者：杨扬范少夫陈桥东丽纤维研究所(中国)有限公司先端材料研究所

随着锂离子电动汽车的快速发展,容量更高、循环性能更好的复合负极材料的研究成为一个热点。在2012年全国高分子材料科学与工程研讨会上本公司介绍了一种基于多面体低聚倍半硅氧烷的碳/硅复合负极材料,利用分子级别的碳/硅复合实现了容... 详细信息

随着锂离子电动汽车的快速发展,容量更高、循环性能更好的复合负极材料的研究成为一个热点。在2012年全国高分子材料科学与工程研讨会上本公司介绍了一种基于多面体低聚倍半硅氧烷的碳/硅复合负极材料,利用分子级别的碳/硅复合实现了容量的提高,但因BET比表面积较低(26.1m/g),循环性能仍不理想。本文利用自组装-成孔-碳化-二氧化硅

关键词： meso-porous C/Si composite anode lithium ion battery

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