物理化学学报2017，Vol.33Issue(9)：1915-1922,8.DOI:10.3866/PKU.WHXB201705083
微波辅助裂解离子液体制备硫氮共掺杂多孔碳材料
Efficient Synthesis of Sulfur and Nitrogen Co-Doped Porous Carbon by Microwave-Assisted Pyrolysis of Ionic Liquid
摘要
Abstract
Sulfur and nitrogen co-doped porous carbon (SNDPC) was successfully synthesized using one-step microwave-assisted pyrolysis of ionic liquid.The structure and morphology of the pyrolysis products were characterized by Fourier-transform infrared (FT-IR) spectroscopy,Raman spectroscopy,X-ray diffraction (XRD),electron microscopy,and X-ray photoelectron spectroscopy (XPS).The pyrolysis mechanism of the ionic liquid 1-ethyl-3-methylimidazolium bis((trifluoromethyl)sulfonyl)imide (EMImNTf2) under microwave irradiation was discussed.Microwave irradiation was found to accelerate the pyrolysis of EMImNTf2.The cation of EMImNTf2 works as the precursor of the carbon backbone of the porous carbon,while the anion acts as sulfur source and porosity-directing regulator.The SNDPC was obtained at 320 ℃ and exhibited graphitic structure with numerous surface defects.The atomic percentages of N and S in SNDPC were 12.84％ and 1.07％,respectively.The N atoms mainly substitute the C sites in the graphitic carbon matrix,whereas the S atoms mainly bond to the ledges and defects of the carbon matrix.关键词
硫氮共掺杂/多孔碳/微波/裂解/离子液体Key words
Sulfur and nitrogen co-doped/Porous carbon/Microwave/Pyrolysis/Ionic liquid分类
化学化工引用本文复制引用
蒙延双,王琛,王磊,王功瑞,夏军,朱福良,ZHANG Yue..微波辅助裂解离子液体制备硫氮共掺杂多孔碳材料[J].物理化学学报,2017,33(9):1915-1922,8.基金项目
The project was supported by the National Natural Science Foundation of China (51364024,51404124),Natural Science Foundation of Gansu Province,China (1506RJZA100),and the Foundation for Innovation Groups of Basic Research in Gansu Province,China (1606RJIA322).国家自然科学基金(51364024,51404124),甘肃省自然科学基金(1506RJZA100),甘肃省基础研究创新群体计划项目(1606RJIA322)资助 （51364024,51404124）
