National Basic Research Program of China(973 Program,2011CB201302);the Key Project of Natural Science Foundation of China(20936007);the Fund from Natural Science Foundation of China for Innovative Research Group(51221462);the Key Project of Coal Joint Fund from Natural Science Foundation of China and Shenhua Group Corporation Limited(51134021);The Strategic Chinese-Japanese Joint Research Program(2013DFG60060);National Natural Science Foundation of China(51074153);National Natural Science Foundation of China for Young Researchers(21206187 and 21206188);the Priority Academic Program Development of Jiangsu Higher Education Institutions