أرسل هذا في رسالة قصيرة: Cost-effective porous carbon materials synthesized by carbonizing rice husk and K2CO3 activation and their application for lithium-sulfur batteries

  _____     ______   _____       ___    __    __  
 |__  //   /_   _// |  __ \\    / _ \\  \ \\ / // 
   / //     -| ||-  | |  \ ||  | / \ ||  \ \/ //  
  / //__    _| ||_  | |__/ ||  | \_/ ||   \  //   
 /_____||  /_____// |_____//    \___//     \//    
 `-----`   `-----`   -----`     `---`       `