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  本文選題：手性 + 介孔��； 參考：《蘇州大學(xué)》2015年碩士論文

【摘要】：手性介孔碳質(zhì)納米材料因其本身獨特的結(jié)構(gòu)特色:可控孔徑,較大比表面積,光學(xué)活性,近來成為研究的熱點。本文采用超分子模板法,以間苯二酚-甲醛樹脂作為碳源制備手性介孔碳質(zhì)納米纖維。為了擴大以3-氨基苯酚-甲醛樹脂作為碳源,制備氮摻雜的碳質(zhì)納米材料的應(yīng)用范圍。本文以陽離子兩親性小分子組裝體為模板,3-氨基苯酚-甲醛樹脂作為碳源,制備氮摻雜的直的碳質(zhì)納米管和納米尺度下具有螺旋形貌的納米管。首先以十六烷基三甲基溴化銨的組裝體為模板,(S)-香草醇作為手性添加劑,1,2-二(三乙氧基硅基)乙烷為硅源制備具有層狀孔以及環(huán)形孔道的1,2-亞乙基橋聯(lián)聚倍半硅氧烷納米纖維;氬氣保護下,碳化氧化硅納米纖維制備C/SiO2復(fù)合的納米纖維�？諝鈼l件下煅燒得到具有層狀孔的二氧化硅納米纖維;當C/SiO2復(fù)合納米材料經(jīng)過HF刻蝕,只得到無規(guī)則的納米顆粒,說明C/SiO2納米纖維的主體成分為二氧化硅,其中碳主要以相互獨立顆粒存在。然后以L-,D-18Val11PyBr自組裝體為模板,間苯二酚-甲醛樹脂作為碳源,正硅酸四乙酯作為硅源制備介孔碳質(zhì)納米纖維。二氧化硅在反應(yīng)體系中占據(jù)的空間位置作為介孔的主要來源,圓二色譜測試結(jié)果表明所得到的介孔碳質(zhì)納米纖維具有光學(xué)活性。最后基于L-,D-18Val11PyPF6自組裝體為模板,3-氨基苯酚-甲醛樹脂為碳源制備氮摻雜的直的碳質(zhì)納米管及單手螺旋碳質(zhì)納米管。圓二色譜測試結(jié)果表明所得到3-氨基苯酚-甲醛樹脂納米管和碳質(zhì)納米管均具有光學(xué)活性,為其應(yīng)用于不對稱催化,對映體分離奠定基礎(chǔ)。
[Abstract]:Chiral mesoporous carbon nanomaterials have recently become a hot research area due to their unique structural characteristics such as controllable pore size, large specific surface area and optical activity. Chiral mesoporous carbon nanofibers were prepared by supramolecular template method using resorcinol-formaldehyde resin as carbon source. In order to expand the application of nitrogen-doped carbon nanomaterials with 3-aminophenol-formaldehyde resin as carbon source. In this paper, nitrogen-doped carbon nanotubes and helical nanotubes with helical morphology were prepared by using a cationic amphiphilic small molecular assembly as a template, 3-aminophenol-formaldehyde resin as a carbon source. In this paper, 1 / 2 ethylenesiloxane nanofibers with layered pore and annular pore were prepared by using hexadecyltrimethylammonium bromide as template and vanillic alcohol as chiral additive. C/SiO2 nanofibers were prepared by carbonized silica nanofibers under argon protection. Silica nanofibers with layered pores were obtained by calcination in air, and when C/SiO2 nanocomposites were etched by HF, only irregular nanoparticles were obtained, indicating that the main component of C/SiO2 nanofibers was silica. Carbon mainly exists as independent particles. Then the mesoporous carbon nanofibers were prepared by using L-L- D-18Val11PyBr self-assembly as template, resorcinol-formaldehyde resin as carbon source, tetraethyl orthosilicate as silicon source. The space position occupied by silica in the reaction system is the main source of mesoporous materials. Circular dichroism (CD) spectra show that the mesoporous carbon nanofibers are optically active. Finally, N-doped carbon nanotubes and single-hand spiral carbon nanotubes were prepared by using L-L- D-18Val11PyPF6 self-assembly as template and 3-aminophenol-formaldehyde resin as carbon source. The results of circular dichroism showed that both 3-aminophenol-formaldehyde resin nanotubes and carbon nanotubes had optical activity, which laid a foundation for their application in asymmetric catalysis and enantiomeric separation.
【學(xué)位授予單位】：蘇州大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TQ340.1;O613.71;TB383.1

【共引文獻】

相關(guān)期刊論文 前10條

1 顧海芳;葉修群;黃曜;;有序含氮介孔碳負載Cu~(2+)催化C—N偶聯(lián)反應(yīng)的研究[J];復(fù)旦學(xué)報(自然科學(xué)版);2014年06期

2 肖勇;張帆;，

本文編號：1847366