To the Editor:Phosphaturic mesenchymal tumor(PMT)is a rare,slowly progressive,histomorphologically distinct entity of tumors that can emerge anywhere in the body.[1]According to World Health Organization,PMT has two p...To the Editor:Phosphaturic mesenchymal tumor(PMT)is a rare,slowly progressive,histomorphologically distinct entity of tumors that can emerge anywhere in the body.[1]According to World Health Organization,PMT has two pathological types:benign and malignant.[2]PMT was discovered due to tumor-induced osteomalacia(TIO)and is increasingly accepted in recent years as the leading cause of TIO.[1]However,most published reports have focused on the clinicopathological,immunohistochemical,and molecular genetic studies on PMT rather than the radiological work-ups.[3,4]Hence,the aim of this study was to find the common imaging characteristics of PMT to assist clinical diagnosis.展开更多
Hard carbon is regarded as promising anode materials for potassium-ion batteries(KIBs)owing to their low price and easy availability.However,the limited rate capability still needs to be improved.Herein,we demonstrate...Hard carbon is regarded as promising anode materials for potassium-ion batteries(KIBs)owing to their low price and easy availability.However,the limited rate capability still needs to be improved.Herein,we demonstrate the fabrication of oxygen/sulfur co-doped hard carbon through a facile hydrolyzationsulfuration process of skimmed cotton.The simultaneous dopants significantly improve potassium ion diffusion rate.When served as the anode for KIBs,this hydrolyzed hard carbon delivered a high reversible capacity(409 mAh/g at 0.1 A/g),superior rate capability(135 mAh/g at 2 A/g)and excellent cyclability(about 120 mAh/g overt 500 cycles at 2 A/g).This work provides a facile strategy to prepare low-cost doped-hard carbon with superior potassium storage property.展开更多
Hard carbon is promising anode for potassium-ion batteries(PIBs),however,the poor rate capability hinders its development as potential anode.To address this question,we design a sulfur-doped porous hard carbon(S-HC)fo...Hard carbon is promising anode for potassium-ion batteries(PIBs),however,the poor rate capability hinders its development as potential anode.To address this question,we design a sulfur-doped porous hard carbon(S-HC)for PIBs through the combination of structural design and composition adjustment.The as-designed S-HC exhibits a long cycling life with^191 mAh/g after 300 cycles at 1 A/g,and an excellent rate capability with^100 mAh/g at 5 A/g,which was attributed to its structural characteristics and compositions.The S-HC demonstrates to be promising anode in the future.展开更多
基金funded by grants from the Beijing Bureau of 215 Program(Nos.2013–3-033 and 2009–02-03).
文摘To the Editor:Phosphaturic mesenchymal tumor(PMT)is a rare,slowly progressive,histomorphologically distinct entity of tumors that can emerge anywhere in the body.[1]According to World Health Organization,PMT has two pathological types:benign and malignant.[2]PMT was discovered due to tumor-induced osteomalacia(TIO)and is increasingly accepted in recent years as the leading cause of TIO.[1]However,most published reports have focused on the clinicopathological,immunohistochemical,and molecular genetic studies on PMT rather than the radiological work-ups.[3,4]Hence,the aim of this study was to find the common imaging characteristics of PMT to assist clinical diagnosis.
基金supported by the Natural Science Foundation of Hunan Province (No.2017JJ1008)the National Natural Science Foundation of China (Nos.21905086,51971090)the Key Research and Development Program of Hunan Province of China (No.2018GK2031)
文摘Hard carbon is regarded as promising anode materials for potassium-ion batteries(KIBs)owing to their low price and easy availability.However,the limited rate capability still needs to be improved.Herein,we demonstrate the fabrication of oxygen/sulfur co-doped hard carbon through a facile hydrolyzationsulfuration process of skimmed cotton.The simultaneous dopants significantly improve potassium ion diffusion rate.When served as the anode for KIBs,this hydrolyzed hard carbon delivered a high reversible capacity(409 mAh/g at 0.1 A/g),superior rate capability(135 mAh/g at 2 A/g)and excellent cyclability(about 120 mAh/g overt 500 cycles at 2 A/g).This work provides a facile strategy to prepare low-cost doped-hard carbon with superior potassium storage property.
基金supported by the National Natural Science Foundation of China (Nos.21905086,51971090)the Key Research and Development Program of Hunan Province of China (No. 2018GK2031)the Natural Science Foundation of Hunan Province (No.2017JJ1008)
文摘Hard carbon is promising anode for potassium-ion batteries(PIBs),however,the poor rate capability hinders its development as potential anode.To address this question,we design a sulfur-doped porous hard carbon(S-HC)for PIBs through the combination of structural design and composition adjustment.The as-designed S-HC exhibits a long cycling life with^191 mAh/g after 300 cycles at 1 A/g,and an excellent rate capability with^100 mAh/g at 5 A/g,which was attributed to its structural characteristics and compositions.The S-HC demonstrates to be promising anode in the future.
