RSC Advances
·
2015
·Vol. 5
·期 18
·14053-14060
·
IF 3.84
Chang Su,Lvlv Ji,Lihuan Xu,Xiaogang Zhu,Huihui He,Yaokang Lv,Mi Ouyang,Cheng Zhang
A novel ferrocene-containing aniline, 6-(2-amino-phenol-9H-yl)-hexyl ferrocenecarboxylate (AnFc) was synthesized via the hydrogenation of 6-(2-nitro-phenol-9H-yl)-hexyl ferrocenecarboxylate (NPFc). Then, the homopolymer of AnFc (PAnFc), copolymers of aniline and AnFc (P(An-co-AnFc)), and polyaniline (PAn) were prepared using a chemical oxidative polymerization process. The structure, morphology, and electrochemical properties of the prepared polymers were characterized by Fourier transform infrared spectroscopy (FTIR), ultraviolet visible spectroscopy (UV-vis), scanning electron microscopy (SEM), cyclic voltammograms (CV) and galvanostatic charge–discharge tests. The results demonstrated that the AnFc functionalized monomer and the corresponding polymer derivatives have been synthesized successfully, and the introduction of the novel functionalized ferrocene-based aniline obviously affected the spectral characteristic, morphology and electrochemical characteristics of the electro-active polymers obtained, as well as its charge migration along the polymer backbone. In addition, the charge–discharge tests showed that P(An-co-AnFc) improved the discharge plateau in the potential range of about 3.0–4.0 V and with an acceptable initial discharge specific capacity of 104.9 mA h g−1 for P(An-co-AnFc) (5 : 1 ([An]/[AnFc])) (compared with 108.2 mA h g−1 for PAn). Furthermore, P(An-co-AnFc) exhibited an even more improved cycling stability than that of PAn, and after 30 cycles the discharge capacity of P(An-co-AnFc) (3 : 1 ([An]/[AnFc])) still maintained 76.3% of the capacity obtained during the initial cycle.
研究领域:
材料科学
·
电化学
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DOI
高影响因子
Materials Today Chemistry
·
2022
·
IF 7.613
Q. Peng,H. Zhao,R. Wang,X. Cao,H. Liu,Q. Liu
Metal-doped porous organic polymers often display unique properties for applications in gas uptake owing to the incorporation of the metal elements in the polymer networks . In this study, a series of novel ferrocene-based hypercrosslinked polymers were prepared by phenolic polycondensation (Fc-PR-HCPs). To generate the hypercrosslinked polymers, 1,1′-ferrocenedicarboxaldehyde (Fc(CHO) 2 ) and bisphenol A (BPA) were used as the building blocks. The maximum value of BET and micropore surface area is determined to be 1111.4 and 487.4 m 2 /g for Fc-PR-HCP3. A significant H 2 adsorption capacity of 3.11 wt% was achieved for Fc-PR-HCP3 at 77 K/1.0 bar, which was noted to be higher than the porous organic polymers with even higher BET surface area value. The high micropore surface area value and the adsorption sites (aromatic rings and metal ion-active sites) provided by two building blocks were used to explain the significant H 2 adsorption capacity successfully. Overall, the findings from this study indicate that Fc-PR-HCPs highlighted prospective applications in the field of H 2 capture.
研究领域:
材料科学
·
能源化学
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产品关联
DOI
高影响因子
JOURNAL OF ORGANOMETALLIC CHEMISTRY
·
2024
·
IF 2.1
Xueyi Chang,Yongfu Qiu,Zhiyu Cheng,Guiping Tan,Qun Luo,Muqing Chen
This study reports the synthesis of a novel block copolymer, PEO-PFc-PCA, comprising cinnamic acid and ferrocene units via Atom Transfer Radical Polymerization (ATRP), and its application as a positive electrode material in pseudocapacitors. Ferrocene functions as redox-active sites for energy storage, while cinnamic acid, when crosslinked under UV light, forms a nano-network that reduces ferrocene leaching, thereby enhancing the stability and lifespan of the pseudocapacitors. Comprehensive structural characterization, including nuclear magnetic resonance and UV–visible spectroscopy, was conducted on PEO-PFc-PCA. Electrochemical tests—cyclic voltammetry, galvanostatic charge/discharge, and electrochemical impedance spectroscopy—revealed that UV crosslinking improved the electrochemical performance, indicated by a slight increase in current and extended charging plateaus. Specific capacitance and energy density increased by 10 % post-crosslinking, demonstrating improved energy storage capacity. Nyquist plots showed reduced internal and charge transfer resistance after crosslinking, enhancing the electrochemical pathway. Stability tests indicated that crosslinked PEO-PFc-PCA retained 90.1 % of its capacitance after 3000 cycles, compared to 86.6 % pre-crosslinking, highlighting its superior longevity. This research presents a promising approach to enhancing pseudocapacitor energy storage through cinnamic acid photopolymerization, potentially benefiting broader pseudocapacitive electrode designs.
研究领域:
材料科学
·
电化学
·
能量存储
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DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2020
·
IF 7.1
Jinge Li,Liying Zhao,Wenbin Wang,Yanju Liu,Huaixia Yang,Jinming Kong,Fuchun Si
Carcinoembryonic antigen (CEA) is regarded as the most common tumor biomarker, the precise and sensitive measurement of which has great significance for the cancer diagnosis, treatment, and prognosis. Herein, for the first time, we construct a novel sandwich-type electrochemical aptasensor for CEA detection based on polymer-functionalized carbon nanotubes (CNTs) composites prepared by ring-opening polymerization (ROP). CEA-aptamer 1 (Apt 1) is self-assembled on a gold electrode surface and used as a probe for CEA capture. CNTs are used as the substrates for polymer chain growth to prepare poly(ferrocenyl glycidyl ether)-grafted CNTs (PFcGE-CNTs) composites by ROP. Due to the efficient polymerization and good biocompatibility of ROP technology, PFcGE-CNTs composites can provide a hydrophilic-biocompatible nanoplatform for CEA-aptamer 2 (Apt 2) capture and serve as a signal amplifier. Remarkably, PFcGE-CNTs composites feature the characteristics of good conductivity and abundant ferrocene derivatives, which significantly amplify the electrochemical signal. Under optimized conditions, the fabricated aptasensor shows a wide detection range of 1 × 10 −15 –1 × 10 −8 g mL −1 and a limit of detection (LOD) down to 2.8 × 10 −16 g mL −1 , which are superior to those of most reported electrochemical methods. Furthermore, the proposed aptasensor exhibits excellent applicability for CEA detection in practical sample analysis, which is of promising application potential for the early diagnosis and monitoring of cancer.
研究领域:
分析化学
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纳米技术
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生物传感器
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癌症诊断
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）