supported by the National Key Research and Development Program of China(2016YFA0401503 and 2018YFA0305700);the National Natural Science Foundation of China(11575288,91934303,21935001 and 11775011);the Strategic Priority Research Program;Key Research Program of Frontier Sciences of the Chinese Academy of Sciences(XDB33000000,XDB25000000 and QYZDBSSW-SLH013);the Youth Innovation Promotion Association of the Chinese Academy of Sciences(Y202003);the China Geological Survey(DD20190234);the Scientific Instrument Developing Project(ZDKYYQ20170001)of the Chinese Academy of Sciences。
It has been recognized that a small amount of propane mixed with methane can change greatly in not only the thermodynamics but also the structural properties of gas hydrate.However,its mechanism is still not well unde...