The ability to control the preparation of one-dimensional(1D)porous carbon nanorods,especially during rapid polymerization,is key to their practical application.We report a method for synthesizing 1D porous carbon nan...The ability to control the preparation of one-dimensional(1D)porous carbon nanorods,especially during rapid polymerization,is key to their practical application.We report a method for synthesizing 1D porous carbon nanorods,characterized by the formation of rod-like mi-celles that are assembled from sodium palmitate and Pluronic F127,facilitated by protonated melamine,and subsequently converted into melamine-based N-doped polymer nanorods which were carbonized to produce the corres-ponding N-doped carbon nanorods.The specific capacitance of the supercapacitor used the as-pre-pared N-doped nanorods as electrode material in a three-electrode system was calculated to be 301.66 F g^(-1) at a current density of 0.2 A g^(-1),with an ultra-high specific surface area normalized capacitance of up to 67.07μF cm^(-2).The N-doping and their one-dimensionality give the nanorods a low internal resistance and good stability,making them well suited for fundamental studies and practical applications ranging from materials chemistry to electrochemical energy storage.展开更多
Following a decades-long real estate bubble involving a culture of indiscriminate ownership and occupation of land,PAX—Patios de la Axerquía is proposing an innovative system of governance in the city of Có...Following a decades-long real estate bubble involving a culture of indiscriminate ownership and occupation of land,PAX—Patios de la Axerquía is proposing an innovative system of governance in the city of Córdoba in Spain that fosters a new urban model consistent with the aims of the New Urban Agenda and a Smart,Sustainable and Inclusive City:from a culture of speculation to one of rehabilitation.A system of multilevel co-management between the public administration and the social economy provides the basis for the acquisition and cooperative use of empty houses as a model of urban regeneration through social innovation in a heritage context.The rehabilitation of the patio-houses in Axerquía,which have been threatened by gentrification,aims to restore the environmental values of the Mediterranean city and upgrade its historical characteristics in a contemporary way together with the citizenship:from its architectural value as a World Heritage site to its anthropological value as Intangible Heritage of Humanity,as recognised by UNESCO in 2012.The interaction between innovative mechanisms of sustainable urban development opens up a pathway of virtuous policies for the densification of the existing city by the local population,generation of micro-employment,and support for collective projects that incorporate refugees and migrants in a system of solidarity.Updating the urban,environmental,social,and economic values of the traditional city is a step toward understanding the Mediterranean city as an undeniable reminder of our past and,at the same time,providing an essential tool for the future development of a smart,sustainable,and inclusive Europe.展开更多
文摘The ability to control the preparation of one-dimensional(1D)porous carbon nanorods,especially during rapid polymerization,is key to their practical application.We report a method for synthesizing 1D porous carbon nanorods,characterized by the formation of rod-like mi-celles that are assembled from sodium palmitate and Pluronic F127,facilitated by protonated melamine,and subsequently converted into melamine-based N-doped polymer nanorods which were carbonized to produce the corres-ponding N-doped carbon nanorods.The specific capacitance of the supercapacitor used the as-pre-pared N-doped nanorods as electrode material in a three-electrode system was calculated to be 301.66 F g^(-1) at a current density of 0.2 A g^(-1),with an ultra-high specific surface area normalized capacitance of up to 67.07μF cm^(-2).The N-doping and their one-dimensionality give the nanorods a low internal resistance and good stability,making them well suited for fundamental studies and practical applications ranging from materials chemistry to electrochemical energy storage.
文摘Following a decades-long real estate bubble involving a culture of indiscriminate ownership and occupation of land,PAX—Patios de la Axerquía is proposing an innovative system of governance in the city of Córdoba in Spain that fosters a new urban model consistent with the aims of the New Urban Agenda and a Smart,Sustainable and Inclusive City:from a culture of speculation to one of rehabilitation.A system of multilevel co-management between the public administration and the social economy provides the basis for the acquisition and cooperative use of empty houses as a model of urban regeneration through social innovation in a heritage context.The rehabilitation of the patio-houses in Axerquía,which have been threatened by gentrification,aims to restore the environmental values of the Mediterranean city and upgrade its historical characteristics in a contemporary way together with the citizenship:from its architectural value as a World Heritage site to its anthropological value as Intangible Heritage of Humanity,as recognised by UNESCO in 2012.The interaction between innovative mechanisms of sustainable urban development opens up a pathway of virtuous policies for the densification of the existing city by the local population,generation of micro-employment,and support for collective projects that incorporate refugees and migrants in a system of solidarity.Updating the urban,environmental,social,and economic values of the traditional city is a step toward understanding the Mediterranean city as an undeniable reminder of our past and,at the same time,providing an essential tool for the future development of a smart,sustainable,and inclusive Europe.
