Coalbed methane (CBM) resources in No.15 coal seam of Taiyuan Formation account for 55% of the total CBM resources in southern Qinshui Basin (SQB),and have a gr
Coal-based graphene quantum dots (GQDs) were successfully produced via a one-stepchemical synthesis from six different coal ranks, from which two superhigh organi
<正>In 2016,the Geological Brigade No.103 of Guizhou Geology and Mineral Exploration and Development Bureau discovered two super-large manganese deposits at Puj