@article{Wang2015, 
author = {Aijian Wang and Wang Yu and Zhengguo Xiao and Yinglin Song and Lingliang Long and Marie P. Cifuentes and Mark G. Humphrey and Chi Zhang},
title = {A 1, 3-dipolar cycloaddition protocol to porphyrin-functionalized reduced graphene oxide with a push-pull motif},
year = {2015},
journal = {Nano Research},
volume = {8},
number = {3},
pages = {870-886},
keywords = {porphyrin, cycloaddition, reduced graphene oxide, nonlinear optics},
url = {https://www.sciopen.com/article/10.1007/s12274-014-0569-x},
doi = {10.1007/s12274-014-0569-x},
abstract = {Reduced graphene oxide (RGO) has been covalently functionalized with porphyrin moieties by two methods: A straightforward Prato reaction (i.e. a 1, 3-dipolar cycloaddition) with sarcosine and a formyl-containing porphyrin, and a stepwise method that involves a 1, 3-dipolar cycloaddition to the RGO surface using 4-hydroxybenzaldehyde, followed by nucleophilic substitution with an appropriate porphyrin. The chemical bonding of porphyrins to the RGO surface has been confirmed by ultraviolet/visible absorption, fluorescence, Fourier-transform infrared, and Raman spectroscopies, X-ray powder diffraction and X-ray photoelectron spectroscopy, transmission electron and atomic force microscopy, and thermogravimetric analysis; this chemical attachment assures efficient electron/energy transfer between RGO and the porphyrin, and affords improved optical nonlinearities compared to those of the RGO precursor and the pristine porphyrin.}
}