卟啉-金属氧簇超分子化合物的光谱及电催化氧还原  

Spectra and Electrocatalytic Reduction of Dioxygen of Meso-tetrakis (4-N-benzylpyridyl)porphyrin-metal-oxo Cluster Supramolecular Complex

作　　者：刘淑清[1] 徐吉庆[1] 孙浩然[1] 李冬梅[1] 曾庆新[1] 宋玉江[1] 

机构地区：[1]吉林大学化学系,长春130023

出　　处：《物理化学学报》2001年第2期128-133,共6页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金! (29733090和 29803003);高等学校博士学科点专项科研基金&&

摘　　要：应用紫外可见吸收光谱研究了 meso-四 (4-N-苄基吡啶基 )卟啉 (MTBPyP4＋ ,M=H2,Zn)阳离子与金属氧簇阴离子 (SiW12O4－ 40)在水溶液中的光谱行为 .光谱演变及 Job图表明 MTBPyP4＋与 SiW12O4－ 40在水溶液中可形成稳定的 1∶ 1的超分子化合物 .同时本文还考察了化学计量为 1∶ 1的 [CoTBPyP][SiW12O40]超分子化合物的电催化分子氧还原行为 ,表明该类超分子化合物有望成为一类新的催化氧还原的修饰电极材料 .Spectral behavior of meso-tetrakis (4-N-benzylpyridyl) porphyrin-metal-oxo cluster (SiW12O404-) supramolecular systems in aqueous solution was studied by UV-visible spectrometry. The spectral evolution and Job's plots reveal that the stable aggregates contain equal numbers of the cationic porphyrins and the anionic SiW12O404-. The electrocatalytic behavior of reducing O-2 for the 1 : 1 supramolecular complex [CoTMPyP] [SiW12O40], was also investigated, the supramolecular complex might be hopeful for being used as a new material of modified electrodes for electrocatalytic reduction of O-2.

关 键 词：阳离子卟啉 金属氧簇阴离子 超分子化合物 电催化氧还原 光谱 燃料电池 催化剂材料 

分 类 号：O641[理学—物理化学] O646[理学—化学]