利用甲基红和壳聚糖复合电极提高葡萄糖氧化酶生物燃料电池的性能

IF 10.61 Q3 Biochemistry, Genetics and Molecular Biology Biosensors and Bioelectronics: X Pub Date : 2024-08-30 DOI:10.1016/j.biosx.2024.100534
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引用次数: 0

摘要

本研究旨在通过改进阳极来提高自泵送葡萄糖酶生物燃料电池(EBFC)的输出功率。添加固定比例的甲基红-壳聚糖(MR-CS)可有效提高 EBFC 的效率和稳定性。此外,壳聚糖可从废弃的甲壳类渔业废弃物如虾和牡蛎中获得,也是意义重大的环保材料。该催化剂被固定在芘甲醛(PCA)、聚乙烯亚胺(PEI)和多壁碳纳米管(MWCNT)上,并与葡萄糖氧化酶(GOx)结合。最后,[PCA/GOx]/PEI/Nafion 溶液/MWCNT/[MR-CS] 催化剂被固定在碳布上。在制备酶支持电极的过程中进行了实验分析,以观察阳极电极的可行性。实验包括傅立叶变换红外光谱(FTIR)分析碳布电极改性后官能团的分布,并通过紫外-可见光谱仪(UV-Vis)的对比,可知[MR-CS]的浓度比为 1:5,葡萄糖氧化酶的负荷可达到最大。电化学分析(循环伏安法,CV)测量阳极材料最大反应的活性和相应的氧化还原峰,扫描电子显微镜(SEM)观察修饰电极的表面形态。对自泵送葡萄糖酶生物燃料电池模块进行了组装和检测,结果表明最大输出功率密度(MPD)为 2.64 mW/cm2。
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Improving the performance of glucose oxidase biofuel cell by methyl red and chitosan composite electrodes

This research aims to improve the output power of self-pumping glucose enzymatic biofuel cell (EBFC) and modifying the anode. Adding a fixed ratio of methyl red-chitosan (MR-CS) can effectively improve the EBFC efficiency and stability. In addition, chitosan can be obtained from discarded crustacean fishery waste objects such as shrimp and oysters, are also significant to the use of environmentally friendly materials. The catalyst was immobilized on pyrenecarboxaldehyde (PCA), polyethyleneimine (PEI) and multi-wall carbon nanotubes (MWCNT) and combined with glucose oxidase (GOx). Finally, the [PCA/GOx]/PEI/Nafion solution/MWCNT/[MR-CS] catalyst was immobilized on the carbon cloth. Experimental analysis was progressed under the preparation of enzyme-supported electrode to observe the feasibility of the anode electrode. Experiment including Fourier transform infrared spectroscopy (FTIR) to analyze the distribution of functional groups after modification of the carbon cloth electrode, and through the comparison of the ultraviolet–visible spectrometer (UV–Vis), it can be known that the concentration ratio of [MR-CS] is 1:5, the glucose oxidase load can be maximized. Electrochemical analysis (Cyclic Voltammetry, CV) measures the activity of the maximum reaction of the anode material and the corresponding redox peak, and scanning electron microscope (SEM) observes the surface morphology of the modified electrode. Self-pumping glucose enzymatic biofuel cell module was assembled and examined, the results showed that the maximum output power density (MPD) was 2.64 mW/cm2.

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来源期刊
Biosensors and Bioelectronics: X
Biosensors and Bioelectronics: X Biochemistry, Genetics and Molecular Biology-Biophysics
CiteScore
4.60
自引率
0.00%
发文量
166
审稿时长
54 days
期刊介绍: Biosensors and Bioelectronics: X, an open-access companion journal of Biosensors and Bioelectronics, boasts a 2020 Impact Factor of 10.61 (Journal Citation Reports, Clarivate Analytics 2021). Offering authors the opportunity to share their innovative work freely and globally, Biosensors and Bioelectronics: X aims to be a timely and permanent source of information. The journal publishes original research papers, review articles, communications, editorial highlights, perspectives, opinions, and commentaries at the intersection of technological advancements and high-impact applications. Manuscripts submitted to Biosensors and Bioelectronics: X are assessed based on originality and innovation in technology development or applications, aligning with the journal's goal to cater to a broad audience interested in this dynamic field.
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