Fluorescence anisotropy was employed for the investigation of the association between AlS 4Pc and BSA. The average binding number of AlS 4Pc to BSA was calculated and the constants of association reaction occurring in...Fluorescence anisotropy was employed for the investigation of the association between AlS 4Pc and BSA. The average binding number of AlS 4Pc to BSA was calculated and the constants of association reaction occurring in the medium of pH 7 0 were shown. The results revealed that the interaction between AlS 4Pc and BSA was strong, which implied that AlS 4Pc may be stored and transferred by serum albumin. The merits of the method used were also pointed out.展开更多
Metal phthalocyanines(MePcs)have been considered as promising catalysts for CO2 reduction electrocatalysis due to high turnover frequency and structural tunability.However,their performance is often limited by low cur...Metal phthalocyanines(MePcs)have been considered as promising catalysts for CO2 reduction electrocatalysis due to high turnover frequency and structural tunability.However,their performance is often limited by low current density and the performance of some systems is con troversial.Here,we report a carb on nano tube(CNT)hybridizati on approach to study the electrocatalytic performa nee of MePcs(Me=Co,Fe and Mn).MePc molecules are anchored on CNTs to form the hybrid materials without noticeable molecular aggregations.The MePc/CNT hybrids show higher activities and better stabilities than their molecular counterparts.FePc/CNT is slightly less active than CoPc/CNT,but it could deliver higher Faradaic efficiencies for CO production at low overpotentials.In contrast,the catalytic performance of MePc molecules directly loaded on substrate is hin dered by molecular aggregati on,especially for FePc and MnPc.Our results suggest that carbon nano tube hybridization is an efficient approach to construct advaneed MePc electrocatalysts and to understand their catalytic performance.展开更多
文摘Fluorescence anisotropy was employed for the investigation of the association between AlS 4Pc and BSA. The average binding number of AlS 4Pc to BSA was calculated and the constants of association reaction occurring in the medium of pH 7 0 were shown. The results revealed that the interaction between AlS 4Pc and BSA was strong, which implied that AlS 4Pc may be stored and transferred by serum albumin. The merits of the method used were also pointed out.
文摘Metal phthalocyanines(MePcs)have been considered as promising catalysts for CO2 reduction electrocatalysis due to high turnover frequency and structural tunability.However,their performance is often limited by low current density and the performance of some systems is con troversial.Here,we report a carb on nano tube(CNT)hybridizati on approach to study the electrocatalytic performa nee of MePcs(Me=Co,Fe and Mn).MePc molecules are anchored on CNTs to form the hybrid materials without noticeable molecular aggregations.The MePc/CNT hybrids show higher activities and better stabilities than their molecular counterparts.FePc/CNT is slightly less active than CoPc/CNT,but it could deliver higher Faradaic efficiencies for CO production at low overpotentials.In contrast,the catalytic performance of MePc molecules directly loaded on substrate is hin dered by molecular aggregati on,especially for FePc and MnPc.Our results suggest that carbon nano tube hybridization is an efficient approach to construct advaneed MePc electrocatalysts and to understand their catalytic performance.
