Project supported by the National Key Basic Research Program of China No.2012CB224804,the National Natural Science Foundation of China No.21373055,Science and Technology Commission of Shanghai Municipality No.08DZ2270500,Beijing Synchrotron Radiation Facility,and the China Petroleum & Chemical Corporation S411063.项目受国家重点基础研究发展规划项目No.2012CB224804,国家自然科学基金No.21373055,上海市科委科技基金No.08DZ2270500,北京高能所同步辐射实验室开放课题及中石化技术开发课题S411063资助.