%0 Journal Article
%T In Situ High-pressure NMR Observations of Formation of Methane Hydrate in the Mesochannels of SBA-15<br>NMR研究甲烷水合物在中孔SBA-15内的生成
%A CHEN Ai-bing
%A ZHANG Wei-ping
%A ZHENG Heng
%A LAN Xi-jie
%A HAN Xiu-wen
%A BAO Xin-he
%A <br>陈爱兵
%A 张维萍
%A 郑珩
%A 兰喜杰
%A 韩秀文
%A 包信和
%J 波谱学杂志
%D 2005
%I 
%X A home-made high pressure apparatus and a static NMR cell capable of standing high pressure up to 10 MPa were employed to study the formation of methane hydrate in SBA-15 with uniform pore size and ordered hexagonal structure. It is found that, under static condition, the introductive period for methane hydrate formation in the mesochannels of SBA-15 is shorter than that for the formation of bulk methane hydrate, suggesting that SBA-15 can promote the formation of methane hydrate. In situ high-pressure ^1H and ^13C NMR studies show that at certain pressure, even in the presence of excess methane, not all the water molecules confined in the mesochannels of SBA-15 can be completely utilized to form methane hydrate.
%K SBA-15<br>核磁共振
%K 甲烷水合物
%K 甲烷
%K 中孔材料
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=1A3C8C6E452BD1AF5A6B6B99BA3989C9&aid=C5FE58A9D6A8AF03&yid=2DD7160C83D0ACED&vid=BC12EA701C895178&iid=E158A972A605785F&sid=5957D6E0A50D26B5&eid=375BEEEA164CFE59&journal_id=1000-4556&journal_name=波谱学杂志&referenced_num=0&reference_num=11