DC 欄位 值 語言 DC.contributor 化學學系 zh_TW DC.creator 鍾鎮鴻 zh_TW DC.creator Chen-hung Chung en_US dc.date.accessioned 2015-7-30T07:39:07Z dc.date.available 2015-7-30T07:39:07Z dc.date.issued 2015 dc.identifier.uri http://ir.lib.ncu.edu.tw:444/thesis/view_etd.asp?URN=102223014 dc.contributor.department 化學學系 zh_TW DC.description 國立中央大學 zh_TW DC.description National Central University en_US dc.description.abstract 本論文利用中溫水熱合成法合成出兩個鋅釩磷酸鹽的化合物 Zn(VO)2(PO4)2(H2O)4 (A1)以及[(VVO)(VIVO)3Zn2(OH)(PO4)4(H2O)7]‧ H2O (A2)。以上化合物均能獲得單晶產物，利用單晶X 光繞射方法收 集數據後進行結構解析，並以粉末X 光圖譜與理論圖譜做比對以確 定樣品純度後，用X 光光電子能譜儀測量A2 之釩金屬價數及熱重分 析儀(TGA)來分析A2 的水分子裂解現象，最後使用超導量子干涉磁 量儀(SQUID)分別來量測A1 及A2 磁性現象。 在反應條件中，A1 與A2 的起始物比例完全相同，而卻在不同的反 應溫度及恆溫時間下可以得到兩種不同的產物，其中A1 為純V(IV) 產物，而A2 為V(IV)以及V(V)的混價化合物，推測可能跟所加入的 還原劑鋅粒的反應程度有很大的關係。 zh_TW dc.description.abstract Two Zinc Vanadium Phosphates, Zn(VO)2(PO4)2(H2O)4 (A1) and [(VVO)(VIVO)3Zn2(OH)(PO4)4(H2O)7]‧H2O (A2), were synthesized under mild hydrothermal conditions. Both of these two structures were determined by single-crystal X-ray diffraction. The purity of each compound was confirmed by powder X-ray diffraction. These compounds were further characterized by TGA, SQUID, XPS. The reaction agent ratio of A1 and A2 are same, but reaction temperature are different, A1 is a Vanadium(IV) compound, A2 is a mixed-valance compound, the reducing agent zinc maybe play a big role in this reactions to show this results. Magnetic Susceptibility also can proof A2 is a mixed-valance vanadium compound. A1 crystal data: Zn(VO)2(PO4)2(H2O)4, tetragonal, I4/m(No. 87), a = 6.2518(2) Å, c = 13.4642(6) Å, V = 526.25(3) Å3, Z = 2, R1 = 0.0481 and wR2 = 0.1144. A2 crystal data: [(VVO)(VIVO)3Zn2(OH)(PO4)4(H2O)7]‧H2O, monoclinic, I4/m(No. 87), a = 12.6432(6) Å, b = 12.6408(6) Å, c = 13.5881(6) Å, =108.627(2)°, V = 2057.90(17) Å3, Z = 4, R1 = 0.0202 and wR2 = 0.0570. en_US DC.subject 水熱合成法 zh_TW DC.subject Hydrothermal Synthesis en_US DC.title 水熱合成鋅釩磷酸鹽及其結構與性質研究 zh_TW dc.language.iso zh-TW zh-TW DC.title Hydrothermal Synthesis, Crystal Structures and Properties of Zinc Vanadium Phosphates en_US DC.type 博碩士論文 zh_TW DC.type thesis en_US DC.publisher National Central University en_US