Synthesis,Characterization and Photoelectric Properties of the Silicon Phthalocyanine-Modified Multi-walled Carbon Nanotubes

采用酰胺反应把硅酞菁(SIPC)共价接枝到多壁碳纳米管(MWCnT)上,得到MWCnT-PC,用紫外可见,红外光谱,拉曼光谱,X射线光电子能谱,热重分析等进行了表征,结果表明碳纳米管上每约457个碳原子接枝一个酞菁分子;为研究共价接枝的MWCnT-PC体系中光激发的电子流动情况,探讨了PC静电组装到MWCnT后的荧光淬灭的情况,结果显示SIPC的光激发电子向MWCnT转移;同时采用喷涂法构筑了ITO/MWCnT-PC光电极,并在光伏电池中研究了其光电性能,在AM1.5光照条件下,光电流及光电压分别为0.434 V和0.158 MA·CM-2,在320 nM处的IPCE达19.8%。本研究目的在于制备碳纳米管衍生物并构筑基于碳管的复杂的功能纳米结构材料,为其应用奠定基础。Silicon phthalocyanine(SiPc) was covalently grated onto multi-walled carbon nanotubes(MWCNTs) to form nano-hybrid materials of phthalocyanine-modified MWCNTs(MWCNT-Pc) via the click amide reaction.The nanotube derivatives were fully characterized by various standard analytical techniques,including UV-visible spectroscopy,infrared spectroscopy,Raman spectroscopy,X-ray photoelectron spectroscopy,and thermogravimetric and differential thermal analysis.The results showed that each of the 457 carbon atoms covalently bonded a phthalocyanine molecule.In order to study the light-induced electron transfer in the MWCNT-Pc composites,fluorescence quenching via the non-covalent electrostatic assembly of MWCNT-NH2 and silicon phthalocyanine was investigated.The results showed the existence of the light-induced electron transfer from phthalocyanine to MWCNTs.At the same time,the photoelectrode of the ITO(indium tin oxide-coated glass)/MWCNT-Pc was fabricated by the method of spray-coating,and the study of its photoelectric properties indicated that the open-circuit voltage and short-circuit current density were 0.434 V and 0.158 mA·cm-2,respectively,under the illumination of AM1.5 standard simulative solar light.The internal photoconversion efficiency at 360 nm was up to 19.8%.福建省自然科学基金(No.2009J01039)资助项

Synthesis and Property of Noval Solar Energy of C_(60)Pt(dppp)

以C60及双齿膦dPPP为配体,在氮气氛下合成出C60PT(dPPP)配合物,采用质谱、元素分析、红外光谱、紫外可见光谱以及光电子能谱等手段对产物进行表征.同时研究了产物的光电性能及氧化还原性能.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/H2Q介质电对中,光生电压最大达到371MV;当C60PT(dPPP)薄膜厚度为1μM时,光伏效应值最大.The fullerene complex C60Pt(dppp) was prepared by reacting C60 with dppp in nitrogen atmosphere.The synthesized fullerene complex was characterized by means of Mass Spectrometry(MS),Elemental Analysis,FT-IR,UV-Vis and XPS.Besides these,the photoelectric properties and redox property of this complex were also studied.The results show that the greatest value of photovotaic potential is 371mV in the benzoquinone/hydroquinone redox couple,and the value of photovoltaic effects reach the maximum when the thickness of complex film is 1μm.Based on the merits mensioned above,the complex has excellent photoelectric properties,therefore it has potential application in solar cells.福建省自然科学基金(E0410001;E0110002

Study on Electrochemical Behavior of Controllable Interface Alkanethiols Self-assembled Monolayers and Au Nanoparticles Modified Gold Electrode

在裸金电极上自组装不同比例的4,4'-二甲基联苯硫醇(MTP)和硫辛酸(TA)混合液,形成自组装膜(MTP+TA/Au SAMS),再修饰纳米金,制得纳米金混合巯基修饰金电极(AunPS/MTP+TA/Au)。研究了纳米金混合巯基修饰金电极的电化学行为和阻抗行为,结果表明电极表面PH值的改变对电极表面的电子转移有重要影响。对葡萄糖传感器的制备条件、测定条件、抗干扰能力等进行了讨论,结果表明修饰电极的微结构和微环境有必要进一步研究。The self-assembled monolayers(SAMs) of 4,4′-bis(methanethiol)biphenyl(MTP) and 6-thioctic acid(TA) were covalently combined on to a bare gold electrode to make self-assembled monolayers(TA+MTP/Au SAMs).It was then dipped into gold nanoparticles solution for a certain time to prepare the AuNPs/MTP+TA/Au electrode.The electrochemical behaviors of the modified electrode were investigated by cyclic voltammetry and electrochemical impedance spectroscopy.The results showed that the acidity variation of the electrode surface had an important influence on the electron transfer.The preparation conditions,determination conditions and anti-interference ability of glucose sensor were discussed,which showed that it was necessary to further study the microstructure and microenvironment of the modified electrode.安徽省高等学校省级自然科学研究一般项目(KJ2011B104

Synthesis of Porphyrin-Fullerene Complexes

按照卟啉与富勒烯连接方式的不同,卟啉-富勒烯化合物可分为共价键连接和非共价键连接两种类型。共价键连接的卟啉-富勒烯化合物主要是通过环加成反应来合成,如1,3-偶极环加成反应、dIElS-AldEr环加成反应和bIngEl-HIrSCH环加成反应;非共价键连接的卟啉-富勒烯化合物主要是通过金属的轴向配位及氢键得到。本文综述了近年来不同类型的卟啉-富勒烯化合物的合成研究,着重介绍了共价键连接卟啉-富勒烯化合物的合成及应用前景,分析目前在合成方法上存在的问题,并对未来的研究提出了展望。Fullerenes have been found to be good acceptors,due to their unique three-dimensional structure and remarkably withdrawing electron.Porphyrins are frequently used as ideal donors for their π conjugate structure and plentiful π electrons.Also,they are good photosensitizers,and have wide absorbability in UV-vis region.Porphyrin-fullerene complexes become currently active fields for their promising value of mimics of the natural photosynthetic reaction centers and photoinduced electron transfer.This material is hopeful to be applied in photovoltaic cells and solar cells.In accordance with the different ways to connect porphyrin and fullerene,porphyrin-fullerene complexes can be divided into two types: covalently linked and non-covalently linked.Covalently linked porphyrin-fullerene complexes are synthesized mainly through cycloaddition reactions,such as the 1,3-dipolar cycloaddition reaction,Diels-Alder cycloaddition reaction and Bingel-Hirsch cycloaddition reaction.Non-covalently linked porphyrin-fullerene complexes are obtained maily through the axial coordination of metal and the hydrogen bonding.This review covers the recent progress in synthesis of different types of porphyrin-fullerene complexes,including the synthesis and application prospects of covalently linked porphyrin-fullerene compounds,existing problems in synthetic methods and further prospects in this field.巢湖学院院级项目(No.XLY-201009)资

Synthesis and Characterization and Photoelectric Property of Fullerene Complex C_(60)Pt(BINAP)

本文利用配体取代法合成了C60Pt(BINAP)新型富勒烯膦金属配合物,采用质谱、元素分析、紫外-可见吸收光谱、红外吸收光谱、光电子能谱等对该产物进行了表征,并测定了其在光化学电池中的光伏效应。光伏效应测试结果表明:在BQ/H2Q与I2/I3-介质溶液中镀层厚度为1～2μm时,具有较好的光电转换性能,光生电压值最高达358mV。A fullerene-phosphine metal complex,C60Pt(BINAP) ,was synthesized by ligand substitution method.The product was characterized by MS,elemental analysis,UV-Vis,IR and XPS.The photovoltaic performances of the complex was determined in the photochemistry cell.The results showed that the fullerene-phosphine metal complex exhibited high photoelectric conversion property,especially under the conditions of BQ/H2Q and I3-/I-redox couples,and 1～2 μm of thickness of the film,the maximum value of photovoltage was 358 mV.福建省自然科学基金资助项目(No.E04100001,E0110002)

Synthesis of Complex (C_(60))_2Ru_2Cl_4[Ph_2P(CH_2)_4PPh_2]

在氮气氛中采用配体取代法合成了C60以σ-π配位方式与Ru形成的稳定η2型富勒烯双核钌金属配合物(C60)2Ru2Cl4[Ph2P(CH2)4PPh2],其结构经UV,IR,XPS,XRD和元素分析表征。A fullerene double core ruthenium metal η2-complex{(C60)2Ru2Cl4[Ph2P(CH2)4PPh2]} with σ-π feedback pattern between C60 and Ru was synthesized by the method of ligand substituting in nitrogen atmosphere. The structure was characterized by UV, IR, XPS, XRD and elemental analysis.福建省自然科学基金资助项目(E04100001,E0110002

Synthesis and Property of Noval Solar Energy of C60Pt(dppp)

The fullerene complex C60Pt (dppp) was prepared by reacting C-60 with dppp in nitrogen atmosphere. The synthesized fullerene complex was characterized by means of Mass Spectrometry ( MS), Elemental Analysis, FT-IR, UV-Vis and XPS. Besides these, the photoelectric properties and redox property of this complex were also studied. The results show that the greatest value of photovotaic potential is 371mV in the benzoquinone/hydroquinone. redox couple, and the value of photovoltaic effects reach the maximum when the thickness of complex film is 1 mu m. Based oil the merits mensioned above, the complex has excellent photoelectric properties, therefore it has potential application in solar cells

Synthesis, Characterization and Photoelectric Properties of the Copper Phthalocyanine-modied Multi-walled Carbon Nanotubes

作者简介: 吴振奕(1968−), 男, 副教授. E-mail: [email protected][中文文摘]采用氯磺酸作为磺化试剂,在多壁碳纳米管上接枝氯磺酰基,之后通过乙二胺的胺解反应,制备出胺基修饰的多壁碳纳米管MWCNT-NH2,并进一步与氯磺酰基酞菁铜反应制备出MWCNT-Pc复合物.产物采用红外光谱,紫外可见,拉曼光谱,X射线光电子能谱,循环伏安,热重分析等进行了表征.结果表明,MWCNT-NH2上磺酰胺基接枝在MWCNT表面,而MWCNT-Pc上的酞菁基团是通过MWCNT-NH2上的酰胺基团与Pc形成复合物,碳纳米管上约38个碳原子结合一个磺酸基酞菁分子;该MWCNT-Pc复合物的热稳定性较MWCNT-NH2低;利用喷涂法构筑了ITO/MWCNT-Pc光电极,光电性能的研究结果表明在AM1.5光照条件下,光电压及光电流分别为0.434V和0.158mA/cm2;在320nm处的IPCE达19.8%,具有较优良的光电转化性能.根据测得的MWCNT-Pc的能带结构,推知MWCNT-Pc的光诱导电子转移过程是Pc端基发生光激发电子跃迁,此后电子转移到MWCNTs上并进一步传递到ITO,完成电荷分离.[英文文摘]Multi-walled carbon nanotubes(MWCNTs) were grafted with sulfonyl chloride groups using chlorosulfonic acid as a sulfonation reagent,and then the amino-modified multi-walled carbon nanotubes of MWCNT-NH2 was prepared via the aminolysis reaction.The MWCNT-NH2 was further reacted with copper phthalocyanine sulfonyl chloride to prepared the complex of MWCNT-Pc.The products were fully characterized by various standard analytical techniques,including scanning electron microscope,transmission electron microscope,infrared spectroscope, UV-Vis absorption spectroscope, Raman spectroscope, X-ray photoelectron spectroscope, thermogravimetric analysis, and cyclic voltammetry. The results indicated that the complex of MWCNT-Pc was fabricated through covalent assembly of MWCNT-NH2 with copper phthalocyanine, with a copper phthalocyanine molecule for every 38 MWCNT carbons.The thermal stability of the complex of MWCNT-Pc was lower than that of MWCNT-NH2.The photoelectrode of ITO/MWCNT-Pc fabricated by the method of the spray showed a better photoelectric performance with the photovoltage and the photocurrent were 0.434V and 0.158mA/cm2 respectively, and the internal photoconversion efficiency at 320nm was up to 19.8%. Based on the band structure of the complex of MWCNT-Pc, the photoinduced electron transfer process was proposed as follow: firstly the electronic transitions occured in the Pc moiety of MWCNT-Pc, following electrons transferred to MWCNTs and then further passed to the ITO to achieve the charge separation.福建省科技厅资助项目(2009J01039

Synthesis and Characterization and Photoelectric Property of Fullerene Complex C60Pt(BINAP)

A fullerene-phosphine metal complex, Cat(BINAP), was synthesized by ligand substitution method. The product was characterized by MS, elemental analysis, UV-Vis, IR and XPS. The photovoltaic performances of the complex was determined in the photochemistry cell. The results showed that the fullerene-phosphine metal complex exhibited high photoelectric conversion property, especially under the conditions of BQ/H(2)Q and I-3(-)/I(-)redox couples, and 1 similar to 2 mu m of thickness of the film, the maximum value of photovoltage was 358 mV

Synthesis of Porphyrin-Fullerene Complexes

Fullerenes have been found to be good acceptors, due to their unique three-dimensional structure and remarkably withdrawing electron. Porphyrins are frequently used as ideal donors for their pi conjugate structure and plentiful pi electrons. Also, they are good photosensitizers, and have wide absorbability in UV-vis region. Porphyrin-fullerene complexes.become currently active fields for their promising value of mimics of the natural photosynthetic reaction centers and photoinduced electron transfer. This material is hopeful to be applied in photovoltaic cells and solar cells. In accordance with the different ways to connect porphyrin and fullerene, porphyrin-fullerene complexes can be divided into two types: covalently linked and non-covalently linked. Covalently linked porphyrin-fullerene complexes are synthesized mainly through cycloaddition reactions, such as the 1,3-dipolar cycloaddition reaction, Diels-Alder cycloaddition reaction and Bingel-Hirsch cycloaddition reaction. Non-covalently linked porphyrin-fullerene complexes are obtained maily through the axial coordination of metal and the hydrogen bonding. This review covers the recent progress in synthesis of different types of porphyrin-fullerene complexes, including the synthesis and application prospects of covalently linked porphyrin-fullerene compounds, existing problems in synthetic methods and further prospects in this field