Supramolecular xerogel linked with cobalt(II) ions: A facile method toward O2 storage and catalyzation of cyclohexene oxidation

Autor: Jide Wang, Fan Yue, Yi Zhang, Ting He, Xiao-Juan Wang, Rujuan Shen, Peng Xue, Yana Wei, Huiqiong Wu
Rok vydání: 2016
Předmět:
Zdroj: Colloids and Surfaces A: Physicochemical and Engineering Aspects. 506:514-518
ISSN: 0927-7757
DOI: 10.1016/j.colsurfa.2016.06.048
Popis: This paper introduces a tripeptide (β-Asp-Phe-Phe, abbreviation β-AspFF) which can self-assemble into long nanofibrils in toluene solvent and further entangle to organogels. The nanofibrils of β-AspFF can serves as ligands to incorporate with Co(II) in the organogels. After being re-immersed into HFIP-H2O mixed solution (Volume Ratio, 1:1), the β-AspFF-Co(II) xerogel exhibited decent oxygen binding properties. Impressively, in comparing with β-AspFF-Co(II) complex, the β-AspFF-Co(II) xerogel proved to be a higher efficient catalyst for catalyzing cyclohexene oxidation reaction. We therefore suppose that the porous and nanofibrils structure of the xerogel plays a key role to improve the catalytic behavior of β-AspFF-Co(II) complex.
Databáze: OpenAIRE