研究了在 Ba Ti O3水浆料中通过加入丙烯酰胺有机单体原位聚合形成聚丙烯酰胺的过程制备厚膜。生坯的柔韧性通过加入丙三醇作为增塑剂加以改善。实验结果表明 ,由于所制备浆料的均匀性好 ,这种由原位聚合形成的厚膜显微结构均匀 ,电性...研究了在 Ba Ti O3水浆料中通过加入丙烯酰胺有机单体原位聚合形成聚丙烯酰胺的过程制备厚膜。生坯的柔韧性通过加入丙三醇作为增塑剂加以改善。实验结果表明 ,由于所制备浆料的均匀性好 ,这种由原位聚合形成的厚膜显微结构均匀 ,电性能优良。展开更多
Few-layered 2D analogs exhibit new physical/chemical properties,leading to a strong research interest and broad areas of application.Recently,lots of methods(such as ultrasonic and electrochemical methods)have already...Few-layered 2D analogs exhibit new physical/chemical properties,leading to a strong research interest and broad areas of application.Recently,lots of methods(such as ultrasonic and electrochemical methods)have already used to prepared 2D materials.However,these methods suffer from the drawbacks of low yield,high cost,or precarious state,which limit the largescale applications.Inspired by the famous Scotch tape method,we develop a ball-milling with polymer"tape"method,fabricating few-atomic-layered material,showing the high-yield,low-cost,and much stability.As electrode material,ultrathin 2D materials can shorten the ion transfer pathway,contributing to the development of high-power batteries.Meanwhile,fewatomic-layered structure can expose more active sites to increase their capacity,showing special energy storage mechanism.We use the as-prepared few-atomic-layered Bi(FALB)and reduced oxide graphene composites as the anode for potassium/sodium-ion batteries(KIBs/NIBs).The sample achieves a high reversible capacity of 395 m Ah g^(-1)for KIBs,of which FALB contributes 438 m Ah g^(-1)(higher than the theoretical capacity of Bi,386 m Ah g^(-1)),and it carries outstanding cycle and rate performance in KIBs/NIBs.展开更多
The transparent PVC films were prepared by tape casting. In the process of prepa ration, rare earth nitrate, as a kind of modifier, was added to th e solution of PVC and THF. These PVC films were tested after being cr...The transparent PVC films were prepared by tape casting. In the process of prepa ration, rare earth nitrate, as a kind of modifier, was added to th e solution of PVC and THF. These PVC films were tested after being crosslinked b y ultraviolet light. It is found that the mechanical and physical properties of all the PVC films modified by rare earth nitrate are greatly enhanced.展开更多
基金financially supported by the National Natural Science Foundation of China(51972258)the Fundamental Research Funds for the Central Universities(WUT:2019IVA007)
文摘Few-layered 2D analogs exhibit new physical/chemical properties,leading to a strong research interest and broad areas of application.Recently,lots of methods(such as ultrasonic and electrochemical methods)have already used to prepared 2D materials.However,these methods suffer from the drawbacks of low yield,high cost,or precarious state,which limit the largescale applications.Inspired by the famous Scotch tape method,we develop a ball-milling with polymer"tape"method,fabricating few-atomic-layered material,showing the high-yield,low-cost,and much stability.As electrode material,ultrathin 2D materials can shorten the ion transfer pathway,contributing to the development of high-power batteries.Meanwhile,fewatomic-layered structure can expose more active sites to increase their capacity,showing special energy storage mechanism.We use the as-prepared few-atomic-layered Bi(FALB)and reduced oxide graphene composites as the anode for potassium/sodium-ion batteries(KIBs/NIBs).The sample achieves a high reversible capacity of 395 m Ah g^(-1)for KIBs,of which FALB contributes 438 m Ah g^(-1)(higher than the theoretical capacity of Bi,386 m Ah g^(-1)),and it carries outstanding cycle and rate performance in KIBs/NIBs.
文摘The transparent PVC films were prepared by tape casting. In the process of prepa ration, rare earth nitrate, as a kind of modifier, was added to th e solution of PVC and THF. These PVC films were tested after being crosslinked b y ultraviolet light. It is found that the mechanical and physical properties of all the PVC films modified by rare earth nitrate are greatly enhanced.
