X射线光电子能谱
石墨烯
材料科学
拉曼光谱
催化作用
氧化物
傅里叶变换红外光谱
核化学
化学工程
无机化学
纳米技术
化学
有机化学
物理
工程类
光学
冶金
作者
Dongning Li,Fang-Qi Shao,Jiu‐Ju Feng,Jie Wei,Qianli Zhang,Ai‐Jun Wang
标识
DOI:10.1016/j.matchemphys.2017.10.074
摘要
In this work, we developed a facile one-pot co-reduction method for fabrication of spherical porous [email protected] Pd skin core-shell nanocrystals supported on N-doped reduced graphene oxide ([email protected] NCs/N-rGO). Trajenta (Tra), a kind of dipeptidyl peptidase-4 inhibitors for treatment of diabetes, served as a new structure-directing agent for [email protected] NCs and N-doping resource for rGO via π-π stacking interactions. The product was mainly characterized by microscopic analysis, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), thermogravimetry (TGA), Raman and Fourier transform infrared (FT-IR) spectroscopy, and the formation mechanism was discussed in some detail. By taking formic acid as the reductant, the [email protected] NCs/N-rGO nanocomposite showed significantly enhanced catalytic ability and improved repeatability for the reduction of highly toxic hexavalent chromium (Cr(VI)) compared with commercial Pt/C (20 wt%) and Pd/C (20 wt%).
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