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A Separatist Space for Self-Education : Rethinking University Coeducation from the Outside
Ding, Naifei 연세대학교 여성연구소 1996 연세 여성연구 Vol.2 No.-
In October of 1989, a group of young women in Taipei,some of whom have just gra-duated from university,some who are still university students,and others who have just returned from graduate studies in the Taipei.
XINHONG ZHAO,PENG WANG,NAIFEI REN 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2014 NANO Vol.9 No.7
Sunken hollow carbon spheres (SHCs) are prepared by using glucose as carbon source andpolystyrene spheres (PSs) as templates. Pt particles are then loaded on the SHCs as electro-catalyst and used for catalyzing both methanol oxidation and oxygen reduction reaction (ORR)in acidic media. Physical measurements show that the SHCs are formed due to sinking of hollowcarbon spheres. It can be imagined that the SHCs have the similar speci¯c surface area ashollow carbon spheres with reduced volume. Moreover, the SHCs have high surface area(786 : 3 m 2 ・ g-1 ) with hollow and sunken structure are bene¯cial for the uniform dispersion ofthe noble metal particles and e±ciently improve the mass transfer in catalytic reactions. Thecyclic voltammogram measurements show that the current densities on Pt/SHC electrocatalystare 2.1 times (1284 mA ・ mg-1Pt) that on commercial Pt/C for methanol oxidation and 1.5 times(163 : 7 mA ・ mg-1Pt) that on Pt/C for ORR at the same Pt loadings, being promising candidatefor fuel cell electrocatalyst.