基金support of The National Basic Research Program of China(2013CB933201)West Light Foundation of The Chinese Academy of Sciences,Science and Technology Program of Gansu Province(1204GKCA063)+1 种基金Science and Technology Program of Lanzhou City(2012-2-103)Key Laboratory of Oil&Gas Fine Chemicals,Ministry of Education&Xinjiang Uyghur Autonomous Region,Xinjiang University(XJDX0908-2011-03)is gratefully acknowledged