检索结果-南通市图书馆

Porphyrins,phthalocyanines,and related covalent-organic frameworks in the photochemical and electrochemical water splitting:A review

引用

Particuology 2024年第7期90卷 236-265页

作者： Oxana V.Kharissova Yolanda Peña Méndez Boris I.Kharisov Aleksandr LNikolaev Edith Luévano-Hipólito Lucy T.González Universidad Autónoma de Nuevo León Ave.Universidad s/nSan Nicolás de los GarzaNuevo León66455Mexico Department of Chemistry Moscow State UniversityVorobievy HillsMoscowRussia CONACYT-Universidad Autónoma de Nuevo León Facultad de Ingeniería Civil-Departamento de Ecomateriales y EnergíaCd.UniversitariaC.P.66455San Nicolás de los GarzaNLMexico Tecnologico de Monterrey Escuela de Ingeniería y CienciasMonterreyNuevo León 64890Mexico Tecnologico de Monterrey Centro del AguaMonterreyNuevo León 64890Mexico

In this review,the possibilities of photochemical and electrochemical water splitting(WS)using porphyrins,phthalocyanines,related macrocycles,and their metal complexes are *** efforts are being carried out in order to develop novel and cheap methods for water decomposition to generate inexhaustible greener energy sources(molecular hydrogen)instead of oil and *** processes of WS in heterogeneous and homogeneous media require novel photo-and electrocatalysts,in particular those on macrocycle basis.A high WS efficiency has been observed for porphyrins and phthalocyanines,showing their suitability both for HER and OER processes are available using these relative compounds for WS *** can be used in photocatalytic and electrocatalytic WS processes both in their free forms or as metal porphyrins/porphyrinates,mainly loaded on various inorganic materials,such as Au NPs,C_(3)N_(4),GaP,KTaO_(3),GaP,and so on,as part of porphyrin-containing polymers or on electrode surface as modifying coatings,being sometimes better than commercial catalysts,such as Pt/*** H2 evolution can be considerably depended on the shape of porphyrin particles;in particular,porphyrin nanowires can yield up to 20 times more H2 than its *** certain cases,both HER and OER can be driven in the same electrolyte using metal *** capacity of metal porphyrins to generate ROS(in particular,singlet oxygen 1O_(2))under ultrasonic treatment is known and can be successfully used for H_(2)O_(2) and O_(2) *** can be used in similar processes in free form or as composites with inorganic or organic counterparts,being immobilized on nanocarbons,metal oxides and salts,or simply dissolved in water acting in a homogeneous *** additional use of ultrasound can lead to better results due to the synergistic effect of the sonochemical treatment and ***-organic frameworks are also applied for WS purposes and are mainly based

关键词： Porphyrins phthalocyanines COFs Water splitting Photocatalysis Electrocatalysis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Design consideration of phthalocyanines as sensitizers for enhanced sono-photodynamic combinatorial therapy of cancer

引用

Acta Pharmaceutica Sinica B 2024年第3期14卷 1077-1097页

作者： Lindokuhle Cindy Nene Heidi Abrahamse Laser Research Centre Faculty of Health SciencesUniversity of JohannesburgDoornfontein 2028South Africa

Cancer remains one of the diseases with the highest incidence and mortality *** treatment modalities have demonstrated threatening drawbacks including invasiveness,noncontrollability,and development of resistance for some,including chemotherapy,radiation,and ***-photodynamic combinatorial therapy(SPDT)has been developed as an alternative treatment modality which offers a non-invasive and controllable therapeutic *** combines the mechanism of action of sonodynamic therapy(SDT),which uses ultrasound,and photodynamic therapy(PDT),which uses light,to activate a sensitizer and initiate cancer *** use of phthalocyanines(Pcs)as sensitizers for SPDT is gaining interest owing to their ability to induce intracellular oxidative stress and initiate toxicity under SDT and *** review discusses some of the structural prerequisites of Pcs which may influence their overall SPDT activities in cancer therapy.

关键词： Sonodynamic therapy Photodynamic therapy Combinatorial therapy phthalocyanines Sensitizer Cancer

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The synthesis and performance evaluation of binuclear metal phthalocyanines as high-efficiency catalysts for Li/SOCl2 battery

The synthesis and performance evaluation of binuclear metal ...

引用

中国化学会第九届全国无机化学学术会议

作者： Fei Yang Ruiqiong Wang Zhe Liu Siwen Li Ronglan Zhang Jianshe Zhao Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education Shaanxi Key Laboratory of Physico-Inorganic Chemistry College of Chemistry ＆ Material Science Northwest University

A novel series of binuclear metal phthalocyanines M2（Pc TN）2Nap（M = Cu2+, Co2+, Mn2+, Ni2+, Zn2+, Fe2+） were designed and synthesized as high-efficiency catalysts for lithium/thionyl chloride（Li/SOCl2） battery through liquid solvent method. For evaluating their catalytic performances to Li/SOCl2 battery, all the phthalocyanines were operated in the electrolyte of the battery. The results revealed that average discharge voltage and discharge time of the battery can be effectively enhanced by 0.1680 V and 609.9 s to maximum extent when compared with blank battery. For the capacities of the battery, they are also found to have an improvement of 51.78%-67.98%. Meanwhile, combined with experimental results of cyclic voltammetric analysis, the suggested catalytic mechanism of binuclear phthalocyanines for catalyzing Li/SOCl2 battery has been proposed.

关键词： phthalocyanines lithium/thionyl chloride battery catalytic performances

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Heterogeneous molecular catalysts for electrocatalytic CO2 reduction

引用

Nano Research 2019年第9期12卷 2093-2125页

作者： Nathan Corbin Joy Zeng Kindle Williams Karthish Manthiram Department of Chemical Engineering Massachusetts Institute of TechnologyCambridgeMA 02139USA

This review provides an overview of the literature regarding heterogeneous molecular catalysts for electrochemical CO2 reduction (ECR).Fundamental aspects of the science,including aggregation,electrochemical rate laws,and electrode-catalyst electronic coupling,are discussed to provide a solid foundation on which to design experiments and interpret *** aspects of ECR are presented based on electrokinetic and spectroscopic measurements as well as density functional theory (DFT) *** is improving for electrokinetic measurements,but the redox state of the metal center under reaction conditions and DFT reaction pathways lack agreement in the *** the tunable aspects of the molecular catalyst,the impacts of the metal center,ligand substituents,and electrode support on the activity and selectivity toward ECR are presented with an emphasis on those studies that controlled for aggregation and minimized mass-transport *** three-dimensional (3D) structures such as polymers,metal-organic frameworks (MOFs),and covalent-organic frameworks (COFs) are discussed as highly tunable architectures that begin to mimic the catalytic pockets of enzyme active *** achieve the full potential of these catalysts,design principles must emerge based on a combination of deconvoluting measurements to extract intrinsic catalyst properties and more reliable theoretical calculations to predict reaction pathways.

关键词： CO2 reduction electrocatalysis porphyrins phthalocyanines molecular complexes heterogeneous catalysis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Large Third-Order Optical Nonlinearity of a Novel Copper Phthalocyanine-Ferrocene Dyad

引用

Chinese Physics Letters 2008年第9期25卷 3257-3259页

作者：宾月景徐松李忠玉黄蕾张智张复实 The Key Lab of Organic Photoelectrons and Molecular Engineering of Ministry of Education Department of Chemistry Tsinghua University Beijing 100084 Department of Chemical and Material Engineering Jilin Institute of Chemical Technology Jilin 132022 Department of Application Technology Northeast Dianli University Jilin 132012

Third-order optical nonlinearity of a novel copper phthalocyanine-ferrocene dyad is measured by femtosecond forward degenerate four-wave mixing （DFWM） technique at 800 nm. The second-order hyperpolarizability of the novel copper phthalocyanine-ferrocene dyad is measured to be 1.74 ×10^-30 esu. This large and ultrafast thirdorder optical nonlinear response is mainly enhanced by the formation of intramolecular charge-transfer which can enhance the delocalized movements of the large π-electrons in the molecules.

关键词： NONLINEAR optics CHARGE transfer POLARIZABILITY (Electricity) phthalocyanines FERROCENE COPPER compounds ELECTRONS

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Heterojunction Effect in Weak Epitaxy Growth Thin Films Investigated by Kelvin Probe Force Microscopy

引用

Chinese Physics Letters 2010年第8期27卷 155-157页

作者：黄海超王海波闫东航 State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 Graduate School of Chinese Academy of Sciences Beijing 100049

We investigate the heterojunction effect between para-sexiphenyl （p-6P） and copper phthalocyanine （CuPc） using Kelvin probe force microscopy. CuPc films are grown on the inducing layer p-6P by a weak epitaxy growth technique. The surface potential images of Kelvin probe force microscopy indicate the band bending in CuPc, which reduces grain boundary barriers and lead to the accumulation of holes in the CuPc layer. The electrical potentiM distribution on the surface of heterojunction films shows negligible grain boundary barriers in the CuPc layers. The relation between band bending and grain boundary barrier in the weak epitaxy growth thin films is revealed.

关键词： HETEROJUNCTIONS EPITAXY THIN films ATOMIC force microscopy PHENYL compounds phthalocyanines CRYSTAL grain boundaries ELECTRIC currents

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Boosting the Capacitive Performance of Cobalt(Ⅱ) Phthalocyanine by Non-peripheral Octamethyl Substitution for Supercapacitors

引用

Chinese Journal of Chemistry 2021年第5期39卷 1265-1272页

作者： Minzhang Li Rajendran Ramachandran Yu Wang Qian Chen Zong-Xiang Xu School of Chemistry and Chemical Engineering Harbin Institute of TechnologyHarbinHeilongjiang 150001China Deportment of Chemistry Southern University of Science and TechnologyShenzhenGuangdong 518055China Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electricol Energy Materials and Devices Southern University of Science and TechnologyShenzhenGuangdong 518055China

In this paper,pristine cobalt(Ⅱ)phthalocyanine(CoPc)and non-peripheral octamethyl substituted CoPc(N-CoMe_(2)Pc)are the focus of electrochemical *** and N-CoMe_(2)Pc nanorods(NR)were synthesized by a facile precipitation process from sublimated bulk phthalocyanine powders and their electrochemical properties were *** to the large specific surface area,the capacitance performance of the nanorods was significantly higher than that of the sublimated powder sample.N-CoMe_(2)Pc powder exhibited better pseudocapacity compared with CoPc powder and CoPc NR,which is attributed to enhanced charge transfer rate and im-proved redox activity after the introduction of octamethyl substituents on phthalocyanine *** maximum specific capacitance value was achieved by N-CoMe_(2)Pc NR based electrode,exhibiting 210.2 F g^(-1) capacitance at 5 mV s^(-1) scan rate and 156.1 F g^(-1) at 0.25 A g^(-1) current density,and also showing high efficiency and satisfactory *** results indicate that according to proper molecular design,N-CoMe_(2)Pc NR could be applied as the potential candidate for electrode material in supercapacitors.

关键词： phthalocyanines Methylation Nanostructures Supercapacitors Electrochemistry

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Probing fluorination promoted sodiophilic sites with model systems of F_(16)CuPc and CuPc

引用

Frontiers of Optoelectronics 2022年第2期15卷 53-64页

作者： Yuan Liu Xu Lian Zhangdi Xie Jinlin Yang Yishui Ding Wei Chen Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityBinhai New CityFuzhou 350207China Department of Chemistry National University of Singapore3 Science Drive 3Singapore117543Singapore Centre for Advanced 2D Materials National University of Singapore6 Science Drive 2Singapore117546Singapore Department of Physics National University of Singapore2 Science Drive 3Singapore117542Singapore

Sodium metal batteries(SMBs)are receiving broad attention due to the high specific capacity of sodium metal anodes and the material abundance on ***,the growth of dendrites results in poor battery performance and severe safety problems,inhibiting the commercial application of *** stabilize sodium metal anodes,various methods have been developed to optimize the solid electrolyte interphase(SEI)layer and adjust the electroplating/stripping behavior of *** the methods,developing anode host materials and adding electrolyte additives to build a protective layer are promising and ***,the understanding of the interaction process between sodium metal and those organic materials is still limited,but is essential for the rational design of advanced anode hosts and electrolyte *** this study,we use copper(II)hexadecafluorophthalocyanine(F_(16)CuPc),and copper(II)phthalocyanine(CuPc),as model systems to unravel the sodium interaction with polar functional groups by in-situ photoelectron spectroscopy and density functional theory(DFT)*** is found that sodium atoms prefer to interact with the inner pyrrolic nitrogen sites of CuPc,while they prefer to interact with the outer aza bridge nitrogen atoms,owing to Na-F interaction at the Na/F_(16)CuPc ***,for the both organic molecules,the central Cu(II)ions are reduced to Cu(I)ions by charge transfer from deposited *** fluorine-containing groups are proven to promote the interaction process of sodium in organic materials,which sheds light on the design of functional interfaces in host materials and anode protective layers for sodium metal anodes.

关键词： Fluorination phthalocyanines Sodium metal anode Sodiophilic sites In-situ X-ray photoelectron spectroscopy(XPS)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Construction of a High-Quality Organic-Inorganic Hybrid Heterostructure and Its Photo-response Performance

引用

Chinese Journal of Chemistry 2023年第1期41卷 50-56页

作者： Yadan Zhang Guanghua Yu Di Xue Jie Lu Xing Meng Yao Yin Qi Wang Zi Wang Lizhen Huang Lifeng Chi Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesSoochow University199 Ren'ai RoadSuzhouJiangsu 215123China Gusu Laboratory of Materials 388 Ruoshui RoadSuzhouJiangsu 215123China Macao Institute of Materials Science and Engineering(MIMSE) MUST-SUDA Joint Research Center for Advanced Functional MaterialsMacao University of Science and TechnologyTaipa 999078MacaoChina

The combination of metal oxide and organic semiconductor for constructing organic-inorganic hybrid heterostructure is promising to offer unique optoelectronic ***,the distinct difference in electron structure and processing technology of the two types of materials makes it usually difficult to fully deliver their complementary ***,we report the construction of a high quality organic/In_(2)O_(3) hybrid heterostructure presenting a good ambipolar transport with average electron mobility>1 cm^(2)V^(-1)·s^(-1) and hole mobility up to 0.4 cm^(2)·V^(-1)·s^(-1),respectively,together with a high-gain *** addition,the incorporation with organic film on top of In_(2)O_(3) remarkably reduces the dark current,enabling the realization of high photoconductivity response with photo-sensitivity of two magnitudes higher than that of pure *** photoconductor and phototransistor of the hybrid structure demonstrate high photoresponsivity>10^(3) AW^(-1) and detectivity up to 10^(14) Jones,demonstrating the promising functionality of such a high quality hybrid heterostructure.

关键词： Sol-gel process Thin films Semiconductors phthalocyanines Hybrid heterostructure

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Synthesis, Structure, and Optical Limiting Properties of an Axial Substituted Bis(8-oxide quinoline)zirconium Phthalocyanine

引用

Chinese Journal of Structural Chemistry 2018年第12期37卷 1971-1978,1846页

作者： YOU Ming-Hua FANG Xin LIN Mei-Jin College of Zhicheng Fuzhou University College of Chemistry Fuzhou University

A novel bis(8-oxide quinoline)zironium phthalocyanine [(OQ)2 Zr Pc] with two 8-oxide quinolone anions at the same axial positions has been successfully synthesized and its chemical structure has been assigned by the 1 H NMR, MS and two-dimensional correlation infrared(2D-IR) spectroscopy as well as by single-crystal X-ray structural analysis. It possessed a moderately effective nonlinear absorption coefficient βeff of 6.69×10-14cm/GW at 532 nm in DMF solution, implying it is a promising candidate for nonlinear optical materials.

关键词： phthalocyanines zirconium complex axial substitution single-crystal structure optical limiting properties

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：