本文選題：Keggin型多酸 + 有機無機雜化材料　； 參考：《東北師范大學(xué)》2017年碩士論文

【摘要】：多金屬氧酸鹽(Polyoxometalates),簡稱為多酸(POMs),作為金屬氧簇的一個重要組成部分,一直以來都是大量科研工作者的研究熱點,這是因為它在催化、電化學(xué)、電催化、光催化、磁性和藥學(xué)等領(lǐng)域都有潛在的應(yīng)用。本文利用過渡金屬銀、鎳與常見的含氮配體對Keggin型多酸進行修飾,得到了5例多酸基有機無機雜化化合物,并通過單晶X-射線衍射分析、熱重、XRD、紅外等分析測試,對晶體結(jié)構(gòu)進行相應(yīng)的表征與分析。在此基礎(chǔ)上,對晶體的性質(zhì)也進行了研究,如氧化脫硫性質(zhì)、電催化性質(zhì)等。1.利用Keggin型多酸H5PMo10V2O40、Ag+和混合的有機配體(Htrz、4,4’-bpy)在水熱條件下得到化合物1。并對化合物1在氧化脫硫,電催化還原H2O2和Br O3-方面的活性進行了研究。{Ag8O(Htrz)4(4,4’-bpy)2}{Ag PMo12O40}(Htrz=1,2,4-三氮唑)(1)化合物1的結(jié)構(gòu)是由純無機的1D鏈和2D有機層Ag-Htrz-4,4’-bpy構(gòu)成的,Keggin型多陰離子和Ag+構(gòu)成了純無機1D鏈,并且它貫穿在2D的Ag-Htrz-4,4’-bpy有機層中。另外,混合配體的比率在這個化合物的合成上扮演著重要角色。2.利用Keggin型多酸陰離子[PW11Ni O39(H2O)]5-,[BW12O40]5-,[Ge W12O40]4-和[PW12O40]3-分別與Ni2+和2,2’-bpy在水熱條件下得到化合物2-5,并對化合物2-5的水氧化和還原亞硝酸鹽的電催化活性進行了研究。[Ni(2,2-bpy)3]5[PW11Ni O39(H2O)]2·7H2O(2)[Ni(2,2-bpy)3]3[Ni(2,2-bpy)2(H2O)BW12O40]2·3H2O(3)[Ni(2,2-bpy)3]3[Ni(2,2-bpy)2(H2O)Ge W12O40]2·(OH)2(4)[Ni(2,2-bpy)3]3[Ni(2,2-bpy)2(H2O)PW12O40]2·(OH)4(5)在化合物2中,兩個單取代的[PW11Ni O39(H2O)]5-陰離子通過氫鍵作用形成一個二聚的多陰離子[PW11Ni O39(H2O)]210-,它被Ni-bpy陽離子單元包圍形成復(fù)合分子結(jié)構(gòu)�；衔�3-5分別是由飽和的Keggin型多陰離子[BW12O40]5-,[Ge W12O40]4-和[PW12O40]3-構(gòu)成的,這些飽和的陰離子被[Ni(2,2-bpy)3]2+和[Ni(2,2-bpy)2(H2O)]2+陽離子單元包圍形成同構(gòu)的有機無機雜化材料。
[Abstract]:Polyoxometalates polyoxometalates (POMsN), as an important component of metal oxygen clusters, has been a hot research topic for a large number of researchers because of its catalysis, electrochemistry, electrocatalysis and photocatalysis. Magnetic and pharmaceutical fields have potential applications. In this paper, Keggin polyacids were modified with transition metal silver, nickel and nitrogen-containing ligands. Five polyacid-base organic-inorganic hybrid compounds were obtained. The results were analyzed by single crystal X-ray diffraction, thermogravimetric analysis and IR. The crystal structure was characterized and analyzed. On this basis, the properties of the crystal are also studied, such as oxidation desulfurization, electrocatalytic properties and so on. Compound 1 was synthesized by using Keggin polyacid H 5PMo 10 V 2O 40 Ag and a mixed organic ligand, Htrzf4 Htrzan4B pyre, under hydrothermal conditions. Compound 1 was oxidized and desulphurized. The activity of electrocatalytic reduction of H2O2 and Br O 3- was studied. The structure of compound 1 is composed of pure inorganic 1D chain and 2D organic layer Ag-Htrzz-4N 4N -bpy. The structure of compound 1 is composed of pure inorganic 1D chain and Ag pure inorganic 1D chain. And it runs through the 2 D Ag-Htrz-4N 4N-BPY organic layer. In addition, the ratio of mixed ligands plays an important role in the synthesis of this compound. 鍒╃敤Keggin鍨嬪閰擱槾紱誨瓙[PW11Ni O39(H2O)]5-,[BW12O40]5-,[Ge W12O40]4-鍜孾PW12O40]3-鍒嗗埆涓嶯i2 鍜，

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