XPS OF NITROGEN-CONTAINING FUNCTIONAL-GROUPS ON ACTIVATED CARBON
XPS OF NITROGEN-CONTAINING FUNCTIONAL-GROUPS ON ACTIVATED CARBON
复制标题
DOI：
10.1016/0008-6223(95)00030-h
复制
发表时间：
1995-01-01
期刊：
影响因子：
10.9
通讯作者：
VANBEKKUM, H
中科院分区：
文献类型：
--
作者：
JANSEN, RJJ;VANBEKKUM, H
用XPS研究了几种含氮活性炭表面基团的Cl_s、N_（1 s）和O_（1 s）光电子的结合能。活性炭上的酰胺（399.9 eV）、内酰胺和酰亚胺（399.7 eV）、吡啶（398.7 eV）、吡咯（400.7 eV）、烷基胺、仲酰胺和N-烷基酰亚胺（399.9 eV）以及三烷基胺（399.7 eV）官能团具有比结合能。支持我们的假设，即改性方法支配的氮功能形成的类型的证据：氨氧化导致酰胺，胺化内酰胺和酰亚胺和进一步的热处理吡啶和吡咯基团。此外，XPS结果证实了叔胺基团通过预氧化的碳与有机胺通过酯和仲酰胺或N-烷基酰亚胺间隔基团的反应连接到碳表面。
XPS is used to study the binding energy of the Cls, N1s and O1s photoelectrons of surface groups on several nitrogen-containing activated carbons. Specific binding energies are assigned to amide (399.9 eV), lactam and imide (399.7 eV), pyridine (398.7 eV), pyrrole (400.7 eV), alkylamine, secondary amide and N-alkylimide (399.9 eV) and trialkylamine (399.7 eV) functional groups on activated carbon. Supporting evidence is obtained for our hypothesis that the modification method governs the type of nitrogen function formed: ammoxidation leading to amides, amination to lactams and imides and further heat treatment to pyridine and pyrrole groups. Moreover, the XPS results confirm the attachment of tertiary amine groups to the carbon surface by reaction of pre-oxidized carbons with organic amines through eater and secondary amide or N-alkylimide spacing groups.