Materials Today Communications
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2023
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IF 3.8
Mihong Cao,Luyi Wang,Qian Zhang,He Zhang,Shengwen Zhong,Jun Chen
In this work, a conductive slurry containing CNTs is used as a modification reagent for the Super-P (SP) conductive agent. After CNTs is recombined with SP, spherical SP particles with a diameter of about 60 nm are evenly dispersed on the surface of CNTs nanotubes with a diameter of 20 nm, which effectively improves the specific surface area of the conductive agent. As a result, the battery using 1.5 % CNTs/SP composite conductive agent shows a smaller EIS impedance value, which makes the comprehensive behaviors of the LiNi 0.5 Co 0.2 Mn 0.3 O 2 battery significantly improved. The CNTs/SP battery shows larger CV curve area and smaller potential difference between oxidation and reduction peaks. In addition, the initial charge and discharge capacity of CNTs/SP battery are 181.7 and 184.7 mAh/g respectively with initial Coulombic efficiency of 98.4%, which are much higher than the pristine SP battery (173.7 and 182.0 mAh/g respectively with initial Coulombic efficiency of 95.4 %). After 70 cycles, the discharge capacity of CNTs/SP battery can still remain at 175.3 mAh/g with capacity retention ratio of 97.2 %, which are also much higher than the pristine SP battery (142.5 mAh/g with capacity retention ratio of 82.8 %). Moreover, compared with the pristine SP batteries, the CNTs/SP batteries show larger discharge capacities at different rates of 0.2 C, 0.5 C, 1.0 C, 2.0 C, 3.0 C and 5.0 C. After combining SP with CNTs nanowires, the discharge capacity, initial coulombic efficiency, cycle stability and rate capability of LiNi 0.5 Co 0.2 Mn 0.3 O 2 electrode are effectively improved, which provides a new idea for the development of novel conductive agent for high-performance cathode materials of lithium ion batteries .
研究领域:
材料科学
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电化学
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能源存储技术
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DOI
高影响因子
FOOD CHEMISTRY
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2026
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IF 10.4
Hongyuan Zhao,Mengyuan Zhao,Yuyang Zhang,Yaling Bi,Xuchun Wang,Qiwen Ran,Canping Pan,Zirong Li
A novel one-pot ultrasonic-assisted method was developed to fabricate Super P carbon black (SPCB)-bridged conductive networks comprising halloysite nanotubes (Hal) and whisker carbon nanotubes (WCN). This WCN/SPCB/Hal nanocomposite was engineered into a sensing platform on glassy carbon electrode (GCE) for diuron (DU) detection. In this architecture, the non-entangled WCN backbone offered high electrolyte adsorption capacity, facilitating the rapid ion transport. Hal provided high-affinity sites to preconcentrate DU at the interface, while SPCB bridged the conductive pathways between WCN and Hal. The resulting WCN/SPCB/Hal/GCE sensor demonstrated good electrochemical performance for DU detection with detection limit of 29.45 nM and sensitivity of 1.6121 μA/μM (linear range: 0.1–20 μM). It also demonstrated good reproducibility, repeatability, and anti-interference capability. The practical application of WCN/SPCB/Hal/GCE in juice samples yielded favorable recoveries of 95.18–102.70% and low relative standard deviations ranging from 2.30% to 4.30%, confirming its potential for rapid DU analysis in fruit-based matrices.
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DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
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2025
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IF 5.1
Hongyuan Zhao,Mengyuan Zhao,Zetan Zhang,Xinya Xu,Wenwen Cao,Zirong Li
A novel niclosamide (NA) electrochemical sensor was constructed by modifying glassy carbon electrode (GCE) with chitosan (CTS)-encapsulated and Super P Li carbon black (Super P)-embedded whisker carbon nanotubes (w-CNTs) networks. The incorporation of w-CNTs and Super P formed an integrated carbon-based conductive networks that dramatically boosted the conductivity property. Moreover, CTS prevented the agglomeration of carbon materials and anchored zero-dimensional Super P and one-dimensional w-CNTs, constructing the “point-to-line” conductive carbon networks. The good film-forming ability of CTS enhanced the stability of the fabricated sensor. By harnessing the synergistic interplay of CTS/Super P/w-CNTs, the CTS/Super P/w-CNTs/GCE sensor achieved the remarkably sensitive NA detection (LOD: 10.5 nM) within an acceptable NA concentration range (0.01–25 μM). For the practical application of NA detection in water samples, the designed sensor exhibited outstanding reliability, as confirmed by relative standard deviations (RSD) ranging from 1.07 % to 3.48 %, and recovery rates ranging from 97.30 % to 102.80 %.
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产品关联
DOI
高影响因子
Journal of Materials Research and Technology-JMR&T
·
2023
·
IF 6.4
Hongyuan Zhao,Meimei Guo,Fang Li,Yu Zhou,Gan Zhu,Yunhang Liu,Qiwen Ran,Fuquan Nie,Volodymyr Dubovyk
The efficient and accurate detection of gallic acid (GA) is particularly important for human health. Herein, a simple and low-cost ultrasonic-assisted strategy was proposed for the preparation of multifunctional nanocomposite of Super-P carbon black (SPCB) nanoparticles and mesoporous silica nanoparticles (MSNs), which was used to modify the glassy carbon electrode (GCE) for the fabrication of GA electrochemical sensor (SPCB@MSNs/GCE). SPCB with pearl-chain nanostructure presented an interconnected highly conductive carbon network, which significantly improved the charge transfer efficiency. MSNs with spherical morphology and mesoporous structure exhibited uniform particle dispersion and high active surface area, which remarkably improved the surface accumulation effect of sensing electrode towards GA. Moreover, the excellent electrical conductivity of SPCB compensated for the non-conductive property of MSNs. Under the optimized condition, the electrochemical response of SPCB@MSNs/GCE sensor had a good linear relationship with GA concentration (0.5–10 μM), and the corresponding limit of detection could reach up to 4.911 nM. The fabricated nanohybrid sensor showed good reproducibility, repeatability and anti-interference property. Moreover, the satisfactory GA recoveries and RSD values were achieved for the electrochemical detection of GA in tea samples. This work provides an important reference for the highly sensitive analysis of GA in the field of food safety.
研究领域:
分析化学
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食品安全
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材料科学
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
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2023
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IF 5.2
Yunhang Liu,Tingting Wu,Hongyuan Zhao,Gan Zhu,Fang Li,Meimei Guo,Qiwen Ran,Sridhar Komarneni
A sensitive carbendazim (CBZ) electrochemical sensor was designed by using Super-P carbon (SPCN) black@zeolitic-imidazolate-framework-8 (SPCN@ZIF-8) nanocomposite modified glassy carbon electrode (SPCN@ZIF-8/GCE). SPCN with pearl-chain nanostructure presented an integrated highly conductive carbon network, which significantly improved the charge transfer efficiency. ZIF-8 nanoparticles possessed high porosity and large specific surface area, which helped to realize the increasement of adsorption ability and accumulation capacity towards CBZ. Moreover, SPCN with excellent conductivity property not only inhibited the agglomeration of ZIF-8 nanoparticles but also compensated the non-conductive property of ZIF-8 nanoparticles. The functional integration of SPCN and ZIF-8 nanoparticles remarkably enhanced the electrochemical detection performance of the SPCN@ZIF-8/GCE sensor towards CBZ. A simple and sensitive CBZ detection could be achieved at the fabricated SPCN@ZIF-8/GCE sensor with low limit of detection of 7.79 nM (CBZ concentration: 0.01–30 μM). Moreover, the fabricated sensor showed good repeatability, reproducibility, and anti-interference performance. When used for the analysis of CBZ in real samples (tomato juice and apple juice), the SPCN@ZIF-8/GCE sensor showed good CBZ detection performance with acceptable recoveries of 99.1%–102.6% and low RSD values of 2.21%–3.27%. This work demonstrated that the SPCN@ZIF-8/GCE sensor may be a promising sensing platform for the rapid and sensitive detection of CBZ residue.
研究领域:
分析化学
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环境科学
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食品科学
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2023
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IF 5.2
Yunhang Liu,Qian Wang,Gan Zhu,Qiwen Ran,Fang Li,Meimei Guo,Guifang Wang,Hongyuan Zhao
We reported an one-pot ultrasonic-assisted method for the preparation of palygorskite nanorods/Super P Li carbon nanoparticles-graphitized carbon nanotubes (PNRs/SPCNPs-g-CNTs) nanocomposite, which was used to modify the glassy carbon electrode (GCE) for the fabrication of PNRs/SPCNPs-g-CNTs/GCE sensor. For the PNRs/SPCNPs-g-CNTs nanocomposite, PNRs with good stability presented large specific surface area and high adsorption, which promoted the enrichment of NA molecules on the electrode surface. SPCNPs with pearl chain-like nanostructure exhibited good electrical conductivity , and the combination of SPCNPs and g-CNTs with high graphitization degree formed an interconnected carbon conductive network with excellent electrical conductivity, which enhanced the charge transport efficiency. Moreover, the interconnected carbon conductive network of SPCNPs-g-CNTs not only promoted the dispersion degree of PNRs but also made up for the poor conductivity property of PNRs. When used for the detection of niclosamide (NA), an acceptable limit of detection (3.6 nM) was achieved at the PNRs/SPCNPs-g-CNTs/GCE sensor in linear NA concentration range of 0.01–10 μM. The PNRs/SPCNPs-g-CNTs/GCE sensor exhibited good reproducibility, repeatability, and anti-interference performance. For the practicability measurement, the fabricated sensor showed good practicability with satisfactory recoveries (97.0–102.7%) and low RSD values of 0.99–4.78% for the detection of NA in tap water and lake water samples.
研究领域:
分析化学
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材料科学
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环境科学
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产品关联
DOI
高影响因子
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