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Your search keyword '"Zhu, Chunnan"' showing total 23 results
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23 results on '"Zhu, Chunnan"'

4. Simultaneous Electrochemical Detection of Catechol and Hydroquinone Based on a Carbon Nanotube Paste Electrode Modified with Electro-Reduced Graphene Oxide.

Author

Chen, Tingfei, Liu, Chao, Liu, Xiaojun, Zhu, Chunnan, and Zheng, Dongyun

Subjects
RAMAN spectroscopy technique, HYDROQUINONE, X-ray photoelectron spectroscopy, CARBON nanotubes, ELECTROCHEMICAL sensors, GRAPHENE oxide
Abstract

Effectively detecting catechol (CC) and hydroquinone (HQ) simultaneously is crucial for environmental protection and human health monitoring. In the study presented herein, a novel electrochemical sensor for the sensitive simultaneous detection of CC and HQ was constructed based on an electrochemically reduced graphene oxide (ERGO)-modified multi-walled carbon nanotube paste electrode (MWCNTPE). Scanning electron microscopy, X-ray photoelectron spectroscopy, Raman spectroscopy and electrochemical techniques were utilized to characterize the sensing interface and investigate the sensing mechanism. Under the optimal detection conditions, the oxidation peak currents of CC and HQ show a good linear relationship with their concentrations in the range of 0.4–400 μM with a detection limit of 0.083 μM for CC and 0.028 μM for HQ (S/N = 3). Moreover, the sensor exhibits good performance and can be applied successfully in the simultaneous detection of CC and HQ in tap water samples and urine samples with satisfactory results, indicating its promising application prospects. [ABSTRACT FROM AUTHOR]

Published
2024
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12. 50C Fast‐Charge Li‐Ion Batteries using a Graphite Anode

Author

Sun, Chuangchao, primary, Ji, Xiao, additional, Weng, Suting, additional, Li, Ruhong, additional, Huang, Xiaoteng, additional, Zhu, Chunnan, additional, Xiao, Xuezhang, additional, Deng, Tao, additional, Fan, Liwu, additional, Chen, Lixin, additional, Wang, Xuefeng, additional, Wang, Chunsheng, additional, and Fan, Xiulin, additional

Published
2022
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13. 50C fast-charge Li-ion batteries using graphite anode

Author

Sun, Chuangchao, primary, Ji, Xiao, additional, Weng, Suting, additional, ruhong, Li, additional, Huang, Xiaoteng, additional, Zhu, Chunnan, additional, Xiao, Xuezhang, additional, Deng, Tao, additional, Chen, Lixin, additional, Wang, Xuefeng, additional, Wang, Chunsheng, additional, and Fan, Xiulin, additional

Published
2022
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22. Low-cost batteries based on industrial waste Al–Si microparticles and LiFePO4 for stationary energy storage.

Author

Zhang, Nan, Sun, Chuangchao, Huang, Yiqiang, Lv, Ling, Wu, Zunchun, Zhu, Chunnan, Wang, Xuancheng, Xiao, Xuezhang, Fan, Xiulin, and Chen, Lixin

Subjects
ENERGY storage, INDUSTRIAL wastes, ENERGY density, POWER density, LITHIUM-ion batteries
Abstract

Owing to their high capacity and low working potential, Si-based anodes are regarded as potential alternatives to graphite anodes to meet the higher requirements of Li-ion batteries (LIBs). However, high volume change causes the fracturing and pulverization of the bulk anode and continuous side reactions, which are more severe in large-particle Si anodes, limiting its practical application. Herein, to build a low-cost battery system, we chose a common industrial waste product, Al–Si microparticles (Al–SiMPs, ∼30 μm), as the anode for LIBs and coupled it with a 2.0 M LiFP6 2-MeTHF electrolyte to support its operation. The Al–SiMP anode showed a high specific capacity and a significantly improved electronic conductivity, ensuring high energy and power densities. An ultra-high initial coulombic efficiency (iCE) of 91.6% and a cycling CE of ∼99.9% were obtained in the half-cells, which delivered a capacity of 1300 mA h g−1 and maintained 95.3% after 100 cycles. Paired with low-cost and high-safety LiFePO4 as the cathode, the LFP‖‖Al–SiMP full cells showed decent cycling stability and exhibited a considerable cost advantage, demonstrating a competitive solution for stationary energy storage. [ABSTRACT FROM AUTHOR]

Published
2021
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