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学者姓名:魏巧华
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Three pargyline-phosphine copper(I) clusters, [Cu-4(C equivalent to C-C9H12N)(3)(PPh3)(4)](PF6) (1) and [Cu-6(CC-C9H12N)(4)(dppy)(4)](X)(2) (dppy = diphenyl-2-pyridylphosphine; X = PF6 for 2 and X = ClO4 for 3), were synthesized. Their structures were fully characterized using various spectroscopic methods and X-ray crystallography, which showed that the stoichiometry and nature of pargyline and phosphine ligands play an important role in tuning the structure and photophysical features of Cu(i) clusters. Interestingly, clusters 1, 2 and 3 exhibited red, orange and yellow phosphorescence with high quantum yields of 88.5%, 22.0% and 40.2%, respectively, at room temperature. Moreover, clusters 1-3 show distinct temperature-dependent emissions. The excellent luminescence performance of 1 and 3 was designed and employed for the construction of monochrome and white light-emitting devices (LEDs).
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GB/T 7714 | Huang, Qiu-Qin , Lin, Yan-Yan , Wang, Yu-Ling et al. Pargyline-phosphine copper(I) clusters with tunable emission for light-emitting devices [J]. | DALTON TRANSACTIONS , 2024 , 53 (13) : 5844-5850 . |
MLA | Huang, Qiu-Qin et al. "Pargyline-phosphine copper(I) clusters with tunable emission for light-emitting devices" . | DALTON TRANSACTIONS 53 . 13 (2024) : 5844-5850 . |
APA | Huang, Qiu-Qin , Lin, Yan-Yan , Wang, Yu-Ling , Qi, Jia yuan , Fu, FengFu , Wei, Qiao-Hua . Pargyline-phosphine copper(I) clusters with tunable emission for light-emitting devices . | DALTON TRANSACTIONS , 2024 , 53 (13) , 5844-5850 . |
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“双一流”背景下,福州大学化学实验教学中心步入了内涵式发展阶段。实验中心贯彻学校的“价值引领、知识拓展、思维训练、能力建构”四位一体育人理念,结合学校“理工结合、基础研究与应用研究相结合”的办学特色,响应学院对化学理科拔尖2.0培养计划以及各专业的新工科、新医科等发展需求,探索地方高校国家级化学实验教学示范中心建设和改革举措和方法。本文将从实验平台建设,实验教学改革,实验师资队伍建设和科普服务等方面介绍过去五年以来福州大学化学实验中心“双一流”建设的经验,突出实践作用,强化实践育人功能,切实提高实验教学内涵。
Keyword :
创新人才培养 创新人才培养 化学实验教学中心建设与实践 化学实验教学中心建设与实践 双一流建设 双一流建设 实验教学改革 实验教学改革 科普教育 科普教育
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GB/T 7714 | 林佳丽 , 吴舒婷 , 郑琤 et al. “双一流”背景下地方高校国家级化学实验教学示范中心的建设与实践 [J]. | 大学化学 , 2024 , 39 (07) : 129-139 . |
MLA | 林佳丽 et al. "“双一流”背景下地方高校国家级化学实验教学示范中心的建设与实践" . | 大学化学 39 . 07 (2024) : 129-139 . |
APA | 林佳丽 , 吴舒婷 , 郑琤 , 林子俺 , 魏巧华 , 郑寿添 . “双一流”背景下地方高校国家级化学实验教学示范中心的建设与实践 . | 大学化学 , 2024 , 39 (07) , 129-139 . |
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介绍了一个研究型综合化学实验——具有异构发光变色的双核铜(Ⅰ)配合物的合成、铜含量分析和发光性能研究.本实验基于氧化还原反应和配位反应合成Cu(Ⅰ)配合物,采用薄层色谱法判断合成反应进程,运用配位滴定法测定其铜含量,利用荧光光度法和荧光定量分析法测定固态荧光以及判断产品的纯度.本实验综合了无机化学、有机化学、分析化学的基础知识和实验技能以及大型仪器的学习和操作,同时体现了发光金属配合物这一科研热点,探究物质结构与性质的关系.通过本实验的实践,学生在巩固所学实验知识和实验技能的同时,训练了运用所学知识解决实际问题的综合能力,有利于学生初步建立科学的思维方式和研究能力.
Keyword :
发光性能 发光性能 综合化学实验 综合化学实验 铜含量分析 铜含量分析 铜(Ⅰ)配合物 铜(Ⅰ)配合物
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GB/T 7714 | 郑琤 , 郑诗颖 , 张艳萍 et al. 具有异构发光变色的双核铜(Ⅰ)配合物的合成、铜含量分析和发光性能研究 [J]. | 大学化学 , 2024 , 39 (7) : 322-329 . |
MLA | 郑琤 et al. "具有异构发光变色的双核铜(Ⅰ)配合物的合成、铜含量分析和发光性能研究" . | 大学化学 39 . 7 (2024) : 322-329 . |
APA | 郑琤 , 郑诗颖 , 张艳萍 , 郑寿添 , 魏巧华 . 具有异构发光变色的双核铜(Ⅰ)配合物的合成、铜含量分析和发光性能研究 . | 大学化学 , 2024 , 39 (7) , 322-329 . |
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A series of gold (I) phoshpine complexes with diverse alkynyl ligands [Au(C equivalent to CR)(PTA)] (R=C6H11OH, 1; C5H9OH, 2; C15H11OH, 3; C19H27O2, 4; C18H23O2, 5; C9H12N, 6; CH2OCH2C6H5, 7; C6H4OCH3, 8; PTA=1,3,5-Triaza-7-phosphaadamantane) have been synthesized and characterized using a range of spectroscopic techniques. Complex 1 and 3 show an infinite one-dimensional S-type and zigzag aurophilic chain, respectively, whereas complex 2 containing 1-ethynyl-1-cyclohexanol gives an approximate linear two-dimensional aurophilic chain, through intra/intermolecular Au(I)& ctdot;Au(I) interactions as well as hydrogen bonding interactions between hydroxy groups of alkynyl ligands and PTA. Solid complexes 1-8 display strongly room/low-temperature emissive of 477-613 nm with the emission lifetime of 0.40-14.0 mu s. All the complexes display higher cytotoxicities against MCF-7, with the cytotoxicity decreasing in the following order 4>8>5>3>7>6>2>1. Complex 4 and 5 stand out for the highest selectivity towards MCF-7 (IC50=0.63-0.78 mu M) compared with normal human embryonic lung fibroblasts (helf) (IC50=14.85-18.13 mu M), which makes those complexes attractive for breast cancer therapy.
Keyword :
alkynyl gold (I) phoshpine complexes alkynyl gold (I) phoshpine complexes cytotoxicity cytotoxicity luminescence luminescence structure-activity relationships structure-activity relationships
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GB/T 7714 | Lin, Tingting , Lin, Yanyan , Yao, Junfei et al. Alkynyl Gold(I) Phosphine Complexes: Evaluation of Structure-Activity Relationships for the Alkynyl Ligands on Luminescence and Cytotoxicity [J]. | EUROPEAN JOURNAL OF INORGANIC CHEMISTRY , 2024 , 27 (18) . |
MLA | Lin, Tingting et al. "Alkynyl Gold(I) Phosphine Complexes: Evaluation of Structure-Activity Relationships for the Alkynyl Ligands on Luminescence and Cytotoxicity" . | EUROPEAN JOURNAL OF INORGANIC CHEMISTRY 27 . 18 (2024) . |
APA | Lin, Tingting , Lin, Yanyan , Yao, Junfei , Wu, Zhongwei , Fu, Nanyan , Wei, Qiaohua . Alkynyl Gold(I) Phosphine Complexes: Evaluation of Structure-Activity Relationships for the Alkynyl Ligands on Luminescence and Cytotoxicity . | EUROPEAN JOURNAL OF INORGANIC CHEMISTRY , 2024 , 27 (18) . |
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Background: Measurement of endogenous cellular hydrogen peroxide (H2O2) can provide information on cellular status, and help to understand cellular metabolism and signaling processes, thus contributing to elucidation of disease mechanisms and new diagnostics/therapeutic approaches. Results: In this work, Pt–Cd bimetallic nanozyme was successfully prepared via the solvothermal synthetic method for sensitive detection of H2O2. The synthesized Pt–Cd bimetallic nanozyme could exhibited good electrochemical activity. Then, the materials were analyzed for the electrochemical properties and catalytic properties of H2O2 by cyclic voltammetry and chronoamperometry, respectively. Results indicated that the synthesized nanozyme had superior sensitivity (295 μA⸳mM−1⸳cm−2) and selectivity toward H2O2 with a detection limit of 0.21 μM. Further, the Pt–Cd bimetallic nanozyme displayed good electrochemical properties compared to platinum catalysts alone. The application was extended to determine the produced H2O2 from human hepatocellular carcinoma cells (HepG2) and normal hepatocyte (LO2) samples after ascorbic acid stimulation, thus enabling the early warning of cellular carcinogenesis. Significance: This strategy promises simple, rapid, inexpensive and effective electrochemical sensing and provides a new pathway for the synthesis of bimetallic nanozymes to construct an electrochemical sensor for the sensitive detection of H2O2. © 2024 Elsevier B.V.
Keyword :
Enzyme-free electrochemical sensor Enzyme-free electrochemical sensor Hepatocellular carcinoma cells Hepatocellular carcinoma cells Intracellularly-originated hydrogen peroxide Intracellularly-originated hydrogen peroxide Pt–Cd bimetallic nanozyme Pt–Cd bimetallic nanozyme
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GB/T 7714 | Xu, M. , Yu, Z. , Wei, Q. et al. Probing trace of intracellularly-originated hydrogen peroxide based Pt–Cd bimetallic nanozyme on an enzyme-free electrochemical sensor [J]. | Analytica Chimica Acta , 2024 , 1324 . |
MLA | Xu, M. et al. "Probing trace of intracellularly-originated hydrogen peroxide based Pt–Cd bimetallic nanozyme on an enzyme-free electrochemical sensor" . | Analytica Chimica Acta 1324 (2024) . |
APA | Xu, M. , Yu, Z. , Wei, Q. , Tang, D. . Probing trace of intracellularly-originated hydrogen peroxide based Pt–Cd bimetallic nanozyme on an enzyme-free electrochemical sensor . | Analytica Chimica Acta , 2024 , 1324 . |
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介绍了一个研究型综合化学实验——具有异构发光变色的双核铜(I)配合物的合成、铜含量分析和发光性能研究。本实验基于氧化还原反应和配位反应合成Cu(I)配合物,采用薄层色谱法判断合成反应进程,运用配位滴定法测定其铜含量,利用荧光光度法和荧光定量分析法测定固态荧光以及判断产品的纯度。本实验综合了无机化学、有机化学、分析化学的基础知识和实验技能以及大型仪器的学习和操作,同时体现了发光金属配合物这一科研热点,探究物质结构与性质的关系。通过本实验的实践,学生在巩固所学实验知识和实验技能的同时,训练了运用所学知识解决实际问题的综合能力,有利于学生初步建立科学的思维方式和研究能力。
Keyword :
发光性能 发光性能 综合化学实验 综合化学实验 铜(I)配合物 铜(I)配合物 铜含量分析 铜含量分析
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GB/T 7714 | 郑琤 , 郑诗颖 , 张艳萍 et al. 具有异构发光变色的双核铜(I)配合物的合成、铜含量分析和发光性能研究——推荐一个综合化学实验 [J]. | 大学化学 , 2024 , 39 (07) : 322-329 . |
MLA | 郑琤 et al. "具有异构发光变色的双核铜(I)配合物的合成、铜含量分析和发光性能研究——推荐一个综合化学实验" . | 大学化学 39 . 07 (2024) : 322-329 . |
APA | 郑琤 , 郑诗颖 , 张艳萍 , 郑寿添 , 魏巧华 . 具有异构发光变色的双核铜(I)配合物的合成、铜含量分析和发光性能研究——推荐一个综合化学实验 . | 大学化学 , 2024 , 39 (07) , 322-329 . |
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Maximization the synergistic effect of each component in transition metal-carbon complexes is expected to improve the bifunctional oxygen electrocatalysis for rechargeable Zn-air batteries but is still challenging. Herein, nucleobase guanine is employed as a supramolecular precursor to generate the core (FeCo alloy)-shell (carbon) structure embedded in ultrathin graphene-like nitrogen-doped carbon nanosheets (FeCo@NCNSs) via a confinement pyrolysis strategy. Thanks to the generated core-shell structure and bimetallic synergistic effect, the as-prepared FeCo@NCNSs exhibits excellent electrochemical performance in both oxygen reduction reaction and oxygen evolution reaction. As a result, when served as the bifunctional air electrode for a practical Zn-air battery, FeCo@NCNSs exhibits a higher open-circuit voltage (1.553 V) and peak power density (197.30 mW cm-2), as well as the greatly improved long-term cyclic stability compared to the noble metal benchmarks. This work provides a promising approach to integrate various active sites for bifunctional oxygen electrocatalysis and inspires the exploration of simple but efficient electrocatalysts for energy storage and conversion.
Keyword :
Bifunctional oxygen electrocatalysis Bifunctional oxygen electrocatalysis Core-shell structure Core-shell structure FeCo alloy FeCo alloy Guanine Guanine Rechargeable Zn-air batteries Rechargeable Zn-air batteries
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GB/T 7714 | Lin, Xin , Cui, Longji , Ding, Xueda et al. Guanine-derived core-shell FeCo alloy confined in graphene-like N-doped carbon as efficient bifunctional oxygen electrocatalysts for rechargeable Zn-air batteries [J]. | JOURNAL OF ALLOYS AND COMPOUNDS , 2024 , 998 . |
MLA | Lin, Xin et al. "Guanine-derived core-shell FeCo alloy confined in graphene-like N-doped carbon as efficient bifunctional oxygen electrocatalysts for rechargeable Zn-air batteries" . | JOURNAL OF ALLOYS AND COMPOUNDS 998 (2024) . |
APA | Lin, Xin , Cui, Longji , Ding, Xueda , Chen, Yiquan , Wei, Qiaohua , Huang, Baobing et al. Guanine-derived core-shell FeCo alloy confined in graphene-like N-doped carbon as efficient bifunctional oxygen electrocatalysts for rechargeable Zn-air batteries . | JOURNAL OF ALLOYS AND COMPOUNDS , 2024 , 998 . |
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Developing novel electrocatalysts for achieving high selectivity and faradaic efficiency in the carbon dioxide reduction reaction (CO2RR) poses a major challenge. In this study, a catalyst featuring a nitrogen-doped carbon shell-coated Ni nanoparticle structure is designed for efficient carbon dioxide (CO2) electroreduction to carbon monoxide (CO). The optimal Ni@NC-1000 catalyst exhibits remarkable CO faradaic efficiency (FECO) values exceeding 90% across a broad potential range of -0.55 to -0.9 V (vs. RHE), and attains the maximum FECO of 95.6% at -0.75 V (vs. RHE) in 0.5 M NaHCO3. This catalyst exhibits sustained carbon dioxide electroreduction activity with negligible decay after continuous electrolysis for 20 h. More encouragingly, a substantial current density of 200.3 mA cm(-2) is achieved in a flow cell at -0.9 V (vs. RHE), reaching an industrial-level current density. In situ Fourier transform infrared spectroscopy and theoretical calculations demonstrate that its excellent catalytic performance is attributed to highly active pyrrolic nitrogen sites, promoting CO2 activation and significantly reducing the energy barrier for generating *COOH. To a considerable extent, this work presents an effective strategy for developing high-efficiency catalysts for electrochemical CO2 reduction across a wide potential window.
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GB/T 7714 | Peng, Ying , Chen, Shuo , Hu, Zhengli et al. Guanine-derived carbon nanosheet encapsulated Ni nanoparticles for efficient CO2 electroreduction [J]. | DALTON TRANSACTIONS , 2024 , 53 (23) : 9724-9731 . |
MLA | Peng, Ying et al. "Guanine-derived carbon nanosheet encapsulated Ni nanoparticles for efficient CO2 electroreduction" . | DALTON TRANSACTIONS 53 . 23 (2024) : 9724-9731 . |
APA | Peng, Ying , Chen, Shuo , Hu, Zhengli , Yin, Mengqi , Pei, Lishun , Wei, Qiaohua et al. Guanine-derived carbon nanosheet encapsulated Ni nanoparticles for efficient CO2 electroreduction . | DALTON TRANSACTIONS , 2024 , 53 (23) , 9724-9731 . |
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Atomically precise metal nanoclusters (NCs) present new opportunities for creating innovative solar-powered photoanodes due to their extraordinary physicochemical properties. Nevertheless, ultrasmall metal NCs tend to aggregate and lack active sites under light irradiation, which severely limits their widespread application. We have developed a strategy to design efficient ternary photoanodes by successively modifying AgAu NCs and CoNi-LDH on BiVO4 substrates using versatile impregnation and electrodeposition. The electronic properties of AgAu NCs facilitate the rapid transfer of photogenerated carriers on BiVO4 and CoNi-LDH. Additionally, ultrathin CoNi-LDH acts as a hole-collecting layer, which quickly extracts holes to the electrode/electrolyte interface. The synergistic effect and the matched energy levels between the ternary heterostructures promote the OER process, which significantly improved the photoelectrochemical (PEC) water oxidation performance. This study presents a new idea for further exploration of metal nanocluster-based PEC systems.
Keyword :
bismuth vanadate bismuth vanadate metal nanoclusters metal nanoclusters photoelectrochemical water splitting photoelectrochemical water splitting synergistic effect synergistic effect ternaryphotoanodes ternaryphotoanodes
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GB/T 7714 | Chen, Wenjie , Jin, Guangrui , Liu, Yijun et al. Ternary Photoanodes with AgAu Nanoclusters and CoNi-LDH for Enhanced Photoelectrochemical Water Oxidation [J]. | ACS APPLIED MATERIALS & INTERFACES , 2024 , 16 (18) : 23296-23304 . |
MLA | Chen, Wenjie et al. "Ternary Photoanodes with AgAu Nanoclusters and CoNi-LDH for Enhanced Photoelectrochemical Water Oxidation" . | ACS APPLIED MATERIALS & INTERFACES 16 . 18 (2024) : 23296-23304 . |
APA | Chen, Wenjie , Jin, Guangrui , Liu, Yijun , Wei, Qiaohua , Tang, Jing . Ternary Photoanodes with AgAu Nanoclusters and CoNi-LDH for Enhanced Photoelectrochemical Water Oxidation . | ACS APPLIED MATERIALS & INTERFACES , 2024 , 16 (18) , 23296-23304 . |
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High entropy (HE) compounds with chemically disordered multi-cation structures have become a hot research topic because of their fascinating "cocktail effect". However, high entropy effect with the efficient photoelectric response has not been reported for photoelectrochemical (PEC) immunoassays. Herein, an innovative PEC immunoassay for the sensitive detection of prostate-specific antigen (PSA) was ingeniously constructed using hollow nanocubic (ZnCdFeMnCu)xS photoactive matrices with high entropic effect via the cation exchange. Initially, a sandwich-type immunoreaction has behaved using dopamine-loaded liposome labeled with anti-PSA secondary antibodies. In the presence of PSA, addition of Triton X-100 caused the liposomal cleavage to release dopamine, which was then detected as a reduced photocurrent on (ZnCdFeMnCu)xS-based photoelectrode. Under optimal condition, the PEC immunoassay showed good photocurrent responses toward target PSA with the dynamic linear range of 0.1-50 ng mL-1 with a limit of detection of 34.1 pg mL-1. Significantly, this system can provide a new platform for the development of PEC immunoassays by coupling with high-entropy photoactive materials.
Keyword :
High-entropy effect High-entropy effect Hollow (ZnCdFeMnCu) x S nanocubes Hollow (ZnCdFeMnCu) x S nanocubes Photoelectrochemical immunoassay Photoelectrochemical immunoassay Prostate-specific antigen Prostate-specific antigen
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GB/T 7714 | Wan, Xinyu , Zeng, Ruijin , Wang, Xin et al. High-entropy effect with hollow (ZnCdFeMnCu)xS nanocubes for photoelectrochemical immunoassay [J]. | BIOSENSORS & BIOELECTRONICS , 2023 , 237 . |
MLA | Wan, Xinyu et al. "High-entropy effect with hollow (ZnCdFeMnCu)xS nanocubes for photoelectrochemical immunoassay" . | BIOSENSORS & BIOELECTRONICS 237 (2023) . |
APA | Wan, Xinyu , Zeng, Ruijin , Wang, Xin , Wang, Haiyang , Wei, Qiaohua , Tang, Dianping . High-entropy effect with hollow (ZnCdFeMnCu)xS nanocubes for photoelectrochemical immunoassay . | BIOSENSORS & BIOELECTRONICS , 2023 , 237 . |
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