Narrative tradition refers to the way storytelling is passed from generation to generation.Tradition is not an unchangeable or pure object.The reason that people cannot approach tradition rationally lies in its matern...Narrative tradition refers to the way storytelling is passed from generation to generation.Tradition is not an unchangeable or pure object.The reason that people cannot approach tradition rationally lies in its maternity and divinity.Tradition is not passed down only by narration because at times the narrative related to tradition creates tradition or serves as a substitute for tradition.Nowadays,people learn tradition more through narratives related to tradition.There are many forms of expression in narratives and only by grasping the main line of “storytelling” can we penetrate the existing barriers of the disciplines and restore the genealogy of the narrative tradition.The latest anthropological studies suggest that the main reason for human success is storytelling,which helps to convey the significance of narrative traditional research.展开更多
Graphene-based supercapacitors have attracted tremendous attention owing to their outstanding electrochemical performance. In terms of material, nitrogen(N)-doped graphene(NDG) displays enhanced specific capaci-tance ...Graphene-based supercapacitors have attracted tremendous attention owing to their outstanding electrochemical performance. In terms of material, nitrogen(N)-doped graphene(NDG) displays enhanced specific capaci-tance and rate performance compared with bare graphene used as a supercapacitor electrode. However, it still remains a challenge to develop a facile and simple method of NDG in cost-effective manner. Here, we used a simple direct laser writing technique to accomplish the simultaneous photoreduction and N-doping of graphene oxide(GO) using urea as a N source. The N content of the resultant reduced N-doped graphene oxide(NGO) reached a maximum value of 6.37%. All reduced NGO(NRGO)-based supercapacitors exhibited a higher specific capacitance than those based on pure reduced GO(RGO). Interestingly, the electrochemical performance of NRGO-based supercapacitors varied with different contents ofN species. Therefore, we can control the properties of the obtained NRGOs by adjusting the doping ratios, an important step in developing effective graphene-based energy storage devices.展开更多
基金a staged achievement of the “Comparison in Narrative Traditions—China and the West”(Grant No.:16ZDA195),a major project supported by the National Social Science Fund of China
文摘Narrative tradition refers to the way storytelling is passed from generation to generation.Tradition is not an unchangeable or pure object.The reason that people cannot approach tradition rationally lies in its maternity and divinity.Tradition is not passed down only by narration because at times the narrative related to tradition creates tradition or serves as a substitute for tradition.Nowadays,people learn tradition more through narratives related to tradition.There are many forms of expression in narratives and only by grasping the main line of “storytelling” can we penetrate the existing barriers of the disciplines and restore the genealogy of the narrative tradition.The latest anthropological studies suggest that the main reason for human success is storytelling,which helps to convey the significance of narrative traditional research.
基金Supported by the National Basic Research Program of China(No.2017YFB1104300)the National Natural Science Foundation of China(Nos.61775078,21603083,61522503).
文摘Graphene-based supercapacitors have attracted tremendous attention owing to their outstanding electrochemical performance. In terms of material, nitrogen(N)-doped graphene(NDG) displays enhanced specific capaci-tance and rate performance compared with bare graphene used as a supercapacitor electrode. However, it still remains a challenge to develop a facile and simple method of NDG in cost-effective manner. Here, we used a simple direct laser writing technique to accomplish the simultaneous photoreduction and N-doping of graphene oxide(GO) using urea as a N source. The N content of the resultant reduced N-doped graphene oxide(NGO) reached a maximum value of 6.37%. All reduced NGO(NRGO)-based supercapacitors exhibited a higher specific capacitance than those based on pure reduced GO(RGO). Interestingly, the electrochemical performance of NRGO-based supercapacitors varied with different contents ofN species. Therefore, we can control the properties of the obtained NRGOs by adjusting the doping ratios, an important step in developing effective graphene-based energy storage devices.
