Raman Spectroscopic Investigation of Hydrogen Storage in Nitrogen Gas Hydrates
MENG Qing-guo1,2, LIU Chang-ling1,2, YE Yu-guang1,2, LI Cheng-feng2,3
1. Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071, China 2. Qingdao Institute of Marine Geology, Qingdao 266071，China 3. Optics and Optoelectronics Laboratory, Ocean University of China, Qingdao 266100, China
Abstract：Recently, hydrogen storage using clathrate hydrate as a medium has become a hotspot of hydrogen storage research. In the present paper, the laser Raman spectroscopy was used to study the hydrogen storage in nitrogen hydrate. The synthetic nitrogen hydrate was reacted with hydrogen gas under relatively mild conditions (e. g. 15 MPa, -18 ℃). The Raman spectra of the reaction products show that the hydrogen molecules have enclathrated the cavities of the nitrogen hydrate, with multiple hydrogen cage occupancies in the clathrate cavities. The reaction time is an important factor affecting the hydrogen storage in nitrogen hydrate. The experimental results suggest that nitrogen hydrates are expected to be an effective media for hydrogen storage.
Key words：Raman spectroscopy;Hydrogen hydrate;Nitrogen hydrate;Hydrogen storage;Reaction time
孟庆国1,2，刘昌岭1,2，业渝光1,2，李承峰2,3 . 氮气水合物储氢的激光拉曼光谱研究 [J]. 光谱学与光谱分析, 2012, 32(08): 2139-2142.
MENG Qing-guo1,2, LIU Chang-ling1,2, YE Yu-guang1,2, LI Cheng-feng2,3 . Raman Spectroscopic Investigation of Hydrogen Storage in Nitrogen Gas Hydrates . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(08): 2139-2142.
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