私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

相關(guān)鏈接
聯(lián)系方式
  • 通信地址:上海市軍工路516號
  • 郵編:200093
  • 電話:021-55271686
  • 傳真:
  • Email:zbinsh@qq.com
當(dāng)前位置:> 首頁 > 論文著作 > 正文
【Nanoscale Research Letters】Temperature-dependent gas transport performance of vertically aligned carbon nanotube/parylene composite membranes
作者:Lei Zhang, Junhe Yang, Xianying Wang, Bin Zhao, Guangping Zheng
關(guān)鍵字:VACNTs, Composite membranes
論文來源:期刊
具體來源:Nanoscale Research Letters, 2014, 9: 448.
發(fā)表時間:2014年
A novel composite membrane consisting of vertically aligned carbon nanotubes (CNTs) and parylene was successfully fabricated. Seamless filling of the spaces in CNT forests with parylene was achieved by a low-pressure chemical vapor deposition (CVD) technique and followed with the Ar/O2 plasma etching to expose CNT tips. Transport properties of various gases through the CNT/parylene membranes were explored. And gas permeances were independent on feed pressure in accordance with the Knudsen model, but the permeance values were over 60 times higher than that predicted by the Knudsen diffusion kinetics, which was attributed to specular momentum reflection inside smooth CNT pores. Gas permeances and enhancement factors over the Knudsen model firstly increased and then decreased with rising temperature, which confirmed the existence of non-Knudsen transport. And surface adsorption diffusion could affect the gas permeance at relatively low temperature. The gas permeance of the CNT/parylene composite membrane could be improved by optimizing operating temperature.
主站蜘蛛池模板: 即墨市| 舞钢市| 西峡县| 肃北| 陆河县| 太仆寺旗| 高雄市| 卓资县| 文山县| 台安县| 堆龙德庆县| 会泽县| 巫山县| 宁夏| 开江县| 长治市| 通许县| 搜索| 金华市| 格尔木市| 淅川县| 滨海县| 遵义县| 志丹县| 科技| 新巴尔虎右旗| 铁力市| 邹平县| 郁南县| 勐海县| 扶风县| 贵南县| 油尖旺区| 彭阳县| 密云县| 河池市| 龙陵县| 澳门| 镇安县| 乌鲁木齐县| 思南县|