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A Facile Approach to Prepare Multiple Heteroatom-Doped Carbon Materials from Imine-Linked Porous Organic Polymers

机译:一种由亚胺连接的多孔有机聚合物制备多种杂原子掺杂碳材料的简便方法

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摘要

In this paper, we proposed a new strategy to prepare multiple heteroatom doped (N, P-doped) porous carbon materials with high surface area of ~1,535 m2 g−1 simply by pyrolysis of imine-linked porous organic polymers (POPs) synthesized via Schiff base condensation. The strategy is simple without any post-processing and various heteroatoms could be involved. Scanning electron microscopy, Raman spectra, Nitrogen gas adsorption-desorption, X-ray photoelectron spectroscopy have been used to characterize the morphology, the structure and the composition of the materials. The multiple heteroatom doped porous carbon materials also display high electrocatalytic performance as exampled by the application in oxygen reduction, which showed the catalyst favors 4-electron transfer during the process, along with superior stability and higher tolerance to methanol as compared to the Pt/C. These results indicate the present method is promising for the preparation of multi-heteroatom doped carbon materials in the application of electrocatalysis.
机译:在本文中,我们提出了一种新的策略来制备多种杂原子掺杂(N,P掺杂)多孔碳材料,其表面积约为〜1,535 m 2 g -1 只需通过Schiff碱缩合合成的亚胺连接的多孔有机聚合物(POP)进行热解即可。该策略简单,无需任何后处理,并且可能涉及各种杂原子。扫描电子显微镜,拉曼光谱,氮气吸附-脱附,X射线光电子能谱已用于表征材料的形态,结构和组成。多种杂原子掺杂的多孔碳材料还显示出高电催化性能,例如在氧气还原中的应用,这表明该催化剂在工艺过程中有利于四电子转移,与Pt / C相比,具有优异的稳定性和对甲醇的更高耐受性。这些结果表明本方法在电催化应用中有望用于制备多杂原子掺杂的碳材料。

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