Water-soluble b-alanine C60 adducts were synthesized, and the scavenging ability to superoxygen anion radical O2- and hydroxyl radical.OH were studied by autoxidation of pyrogallol and chemiluminescence, respectively....Water-soluble b-alanine C60 adducts were synthesized, and the scavenging ability to superoxygen anion radical O2- and hydroxyl radical.OH were studied by autoxidation of pyrogallol and chemiluminescence, respectively. It was found thatβ-alanine C60 adducts showed an excellent efficiency in eliminating superoxygen anion radical and hydroxyl radical. The 50% inhibition concentration (IC50) for superoxygen anion radical and hydroxyl radical were 0.15 mg/mL and 0.048 mg/mL, respectively. The difference should be mainly attributed to the different scavenging mechanisms.展开更多
Carbon nanotubes (CNTs) were synthesized by catalytic chemical vapor deposition and using the alkali-reducing pretreated hydrogen storage alloy (MlNi(4.0)Co(0.6)Al(0.4)) powder as a catalyst. It was found that the sur...Carbon nanotubes (CNTs) were synthesized by catalytic chemical vapor deposition and using the alkali-reducing pretreated hydrogen storage alloy (MlNi(4.0)Co(0.6)Al(0.4)) powder as a catalyst. It was found that the surface modification of the alloy was effective to provide the catalytic active sires for CNTs growth. The Ni- and Go-clusters on the surface of the treated alloy were dominant for the growth of CNTs. The composite of CNTs with the hydrogen storage alloy has the potential to be used as a new type of hydrogen storage material without further purification.展开更多
文摘Water-soluble b-alanine C60 adducts were synthesized, and the scavenging ability to superoxygen anion radical O2- and hydroxyl radical.OH were studied by autoxidation of pyrogallol and chemiluminescence, respectively. It was found thatβ-alanine C60 adducts showed an excellent efficiency in eliminating superoxygen anion radical and hydroxyl radical. The 50% inhibition concentration (IC50) for superoxygen anion radical and hydroxyl radical were 0.15 mg/mL and 0.048 mg/mL, respectively. The difference should be mainly attributed to the different scavenging mechanisms.
基金the National Natural Science Foundation of China (No.20003009), the Zhejiang Provincial Natural Science Foundation (No.200053) a
文摘Carbon nanotubes (CNTs) were synthesized by catalytic chemical vapor deposition and using the alkali-reducing pretreated hydrogen storage alloy (MlNi(4.0)Co(0.6)Al(0.4)) powder as a catalyst. It was found that the surface modification of the alloy was effective to provide the catalytic active sires for CNTs growth. The Ni- and Go-clusters on the surface of the treated alloy were dominant for the growth of CNTs. The composite of CNTs with the hydrogen storage alloy has the potential to be used as a new type of hydrogen storage material without further purification.
