低品位萤石湿法制氟硅酸钠

在60℃温度下,用30%硫酸与二氧化硅作用于含氟化钙85%的低品位萤石矿,反应持续1小时半,在氯化钠过量的条件下第一次沉淀可得到合格品氟硅酸钠的产率达75%以上,经后处理可使产率提高至90%

Synthesis and photoelectric effect of a new fullerene[70] ruthenium complex

合成了新的富勒烯[70]钌配合物,通过元素分析、红外光谱、光电子能谱(XPS)及31P NMR的多种手段对其进行了表征.结果表明该配合物分子内存在超共轭效应,共轭电子多,离域性好.通过光伏效应装置研究了其光电性能,结果显示该配合物具有良好的光电性能.The fullerene complex,C_(70)[Ru(NO)(PPh_(3))]_(6), is synthesized and characterized by means of elemental analysis,IR,XPS and ~(31)P NMR.The photoelectric effect of the fullerene complex is studied.The results show that the photoelectric effect of the fullerene complex is better than that of pure GaAs electrode,and the photoelectric effect depends on the thickness of the sample film,the media and the amount of the organic metal group.福建省自然科学基金资助项目(E0410001);; 厦门大学自选课题基金资助项目(0040-Y07008

Synthesis and Characterization For C 70 (OsO 4Py 2) 3 Complex

自从1985年krOTO等［1，2］发现富勒烯（球烯）以来，在化学、物理和材料等领域逐渐地形成了富勒烯的研究热潮，现在人们正将较多注意力投向富勒烯的各类衍生物结构与性能之间内在联系规律的研究，以期望在开发应用方面取得更大的进展，为此也更加重视对具有特...The Fullerene complex, C 70 (OsO 4Py 2) 3, was prepared by the reaction of C 70 with OsO 4 and Py in methylbenzene at room temperature. The new complex was characterized by elemental analysis, IR and electronic spectra. The complex structure was supposed.国家自然科学基

Synthesis and Photoelectric Property for the Fullerene Complex C_(60)Pd(Ph_2PCH_2CH_2CH_2CH_2PPh_2)

本文在惰性气氛中通过取代反应合成出富勒烯金属配合物C60Pd(Ph2PCH2CH2CH2CH2PPh2),采用元素分析、红外光谱、紫外可见光谱、光电子能谱以及X射线粉末衍射等手段对产物进行表征,同时研究了产物的氧化还原性能及热稳定性能。此外,在光电化学电池中测定了C60Pd(Ph2PCH2CH2CH2CH2PPh2)在GaAs电极上形成n+n型异质结的光伏效应,结果表明:产物具有优良的光电转化性能,尤其是在BQ/H2Q介质电对中,光生电压最大达到212mV;当C60Pd(Ph2PCH2CH2CH2CH2PPh2)薄膜厚度为1μm时,光伏效应值最大。Fullerene complexe C60Pd(Ph2PCH2CH2CH2CH2PPh2) was prepared by replacement reaction in inert atmosphere and characterized by elemental analysis, IR, electronic spectroscopy, XPS and XRD. At the same time, the properties on redox and thermostability of the product were studied. The photoltaic effect of C60Pd(Ph2PCH2CH2CH2CH2PPh2) complex on GaAs electrode formation n+n heterojunction in photoelectrochemical cell was investigated. The results show that the photoelectric property of C60Pd(Ph2PCH2CH2CH2CH2PPh2) is excellent,especially in the BQ/H2Q redox couple mediator. The photovoltaic property of C60Pd(Ph2PCH2CH2CH2CH2PPh2)-GaAs electrode at 1 μm for thickness of C60Pd(Ph2PCH2CH2CH2CH2PPh2) is the best, the photopotential value is up to 212 mV.福建省自然科学基金资助项目(No.E04100001,No.E0110002);; 厦门大学校级自选课题基金资助项

Synthesis and Redox Study for Complex C_(60)Pt(CO)(Pph_3)

采用配体取代法 ,即在惰性气氛下以C60 取代Pt(CO) 2 (Pph3 ) 2 中的CO及Pph3 ,合成了C60 Pt(CO)(Pph3 )富勒烯金属配合物 ,利用元素分析、红外光谱、紫外可见光谱、光电子能谱等手段对产物进行鉴定和表征 ,结果表明 ,C60 以σ-π配位方式与Pt形成了稳定的 η2 型C60 配合物 .由于该分子存在超共轭作用 ,分子内电子流动性大 ,因而该配合物可能具有良好的光电转化性能及催化性能 .氧化还原性能研究表明 ,C60 在与金属有机基团Pt(CO) (Pph3 )形成配合物后 ,其还原电位向负方向发生了移动Fullerene and it′s dervant have unique poperties on physics and chemistry. The main purpose of the synthesis of new type fullerene complexes is to exploit the applications of fullerene and it′s dervant as functional materials. The method of ligand substituting was employed, by which, the fullerene complexe C 60Pt(CO)(Pph 3)has been perpared by the reaction of C 60 replacing the ligands CO and Pph 3 in Pt(CO) 2(Pph 3) 2 under a nitrogen atmosphere and refluxing. The title compound was characterized by elemental analysis, FT-IR, UV-vis, XPS. The results show that the structure of purposeful product is that the ligands CO and Pph 3 take up two coordination sites of the central metal, and C 60 take up another two sites in σ-π feeback pattern. The electron flowing power of the molecule is strong, because of super conjugation in the molecule. The complexe may have super poperties on photoelectricity and catalysis. The result of redox research indicates that the reduction potential of the complexe is more negative than that of pure C 60.福建省自然科学基金 (E0 110 0 0 2 )资助课题;; 高等学校博士学科点专项科研基金 (980 384 10 )资助课题;; 厦门大学校级自选课题基金资

C_(60)[RuHCl(CO)(PPh_3)]_3配合物的合成和表征

国家自然科学基金;教育部博士点基

Cu-Zn-Al-Zr甲醇合成催化剂的UVDR、TPD和TPR表征

在 Cu- Zn- Al甲醇合成催化剂中添加适量的氧化锆助剂 ,制得 Cu- Zn- Al- Zr催化剂及表征其特性 .实验结果表明 ,Cu- Zn- Al- Zr催化剂最佳反应温度为 2 30℃ ,比 Cu- Zn- Al低约 10℃ ;热处理前后甲醇得率分别比 Cu- Zn- Al高 16%和 38% .UVDR表征显示 ,反应后催化剂在 5 98nm处观测到在 Zn O晶格介面上的 Cu+;CO- TPD表征显示 ,经 4 5 0℃热处理后的催化剂只在 182℃～ 197℃处出现一个由 Cu0 位贡献的吸附峰 ,热处理前在 2 61℃～ 2 74℃处由 Cu+位贡献的吸附峰消失 .Cu-Zn- Al- Zr催化剂对 CO的吸附量和 Cu+含量均大于 Cu- Zn- Al催化剂 ,这与该催化剂具有较好的低温活性和较高的热稳定性密切相

Synthesis and Photovoltaic Effect Study for Fullerene Complexe C_(60)Pd(Ph_2PCH_2PPh_2)

在氮气氛下 ,采用配体取代法 ,即以C60 取代Pd(Ph2 PCH2 PPh2 ) 2 中一个Ph2 PCH2 PPh2 合成出富勒烯金属配合物C60 Pd(Ph2 PCH2 PPh2 ) ,采用元素分析、红外光谱、紫外可见光谱、光电子能谱以及X射线粉末衍射等手段对产物进行表征 .同时研究了产物的光电性能、氧化还原性能及热稳定性能 .光伏效应研究结果表明 ,产物具有优良的光电转化性能 ,尤其是在BQ/H2 Q介质电对中 ,光生电压最大达到 174mV ;当C60 Pd(Ph2 PCH2 PPh2 )薄膜厚度为 1μm时 ,光伏效应值最大 .Fulerene complexe C_ 60Pd(Ph_2PCH_2PPh_2) was perpared by the method of ligand substitution via the reaction of C_ 60 with Pd(Ph_2PCH_2PPh_2)_2 under condition of a nitrogen atmosphere and refluxing, and the title compound was appraised and characterized by methods of elemental analysis, FT-IR, UV-vis, XPS and XRD.The results showed that the structure of purposeful product was that the Ph_2PCH_2PPh_2 took up two coordination sites of the central metal, and C_ 60 took up another two sites in σ-π feeback pattern. The porperties on photoelectricity, redox and thermostability of the title complexe were studied. The results of studying on photoelectricity showed that the photovoltaic effect of (n+n) heterojunction electrode formed by C_ 60Pd(Ph_2PCH_2PPh_2)/GaAs was supper, especially in the BQ/H_2Q redox couple, and the greatest value of photovoltaic potential was up to 174 mV. The photovoltaic performance of C_ 60Pd(Ph_2PCH_2PPh_2)/GaAs electrode at 1 μm for thickness of C_ 60Pd(Ph_2PCH_2PPh_2) film was the best.ProjectsupportedbytheNaturalScienceFoundationofFujianprovince (E0 4 10 0 0 1,E0 110 0 0 1,F0 2 10 0 10 ) ,DoctorProgramofHighterEductionofChina (980 384 10 )andSelf selectProgramofXiamenUniversity

Synthesis and characterization for C-70(OsO4Py2)(3) complex

The fullerene complex, C-70 (OsO4Py2)(3), was prepared by the reaction of C-70 With OsO4 and Py in methylbenzene at room temperature. The new complex was characterized by elemental analysis, IR and electronic spectra. The complex structure was supposed

Synthesis and redox study for complex C60Pt (CO) (Pph(3))

Fullerene and it's dervant have unique poperties on physics and chemistry. The main purpose of the synthesis of new type fullerene complexes is to exploit the applications of fullerene and it's dervant as functional materials. The method of ligand substituting was employed, by which, the fullerene complexe C60Pt(CO) (Pph(3)) has been perpared by the reaction of C-60 replacing the ligands CO and Pph(3) in Pt(CO)(2) (Pph(3))(2) under a nitrogen atmosphere and refluxing. The tide compound was characterized by elemental analysis, FT-IR, UV-vis, XPS. The results show that the structure of purposeful product is that the ligands CO and Pph(3) take up two coordination sites of the central metal, and C-60 take up another two sites in sigma-pi feeback pattern. The electron flowing power of the molecule is strong, because of super conjugation in the molecule. The complexe may have super poperties on photo-electricity and catalysis. The result of redox research indicates that the reduction potential of the complexe is more negative than that of pure C-60