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WS/WO修饰的碳阳极作为增强发电和污染物去除的高效电催化剂。

WS/WO modified carbon anode as efficient electrocatalysts for enhancing electricity generation and pollution removal.

作者信息

Sang Yugang, Jiang Quantong, Guan Fang, Wang Nan, Etim Ini-Ibehe Nabuk, Fan Keliang, Duan Jizhou

机构信息

Department of Materials Science and Engineering, Qilu University of Technology, Jinan, China.

State Key Laboratory of Advanced Marine Materials, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.

出版信息

Front Microbiol. 2025 Apr 28;16:1589441. doi: 10.3389/fmicb.2025.1589441. eCollection 2025.

DOI:10.3389/fmicb.2025.1589441
PMID:40356645
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12066612/
Abstract

Microbial fuel cells (MFCs) have emerged as a new energy technology to solve severe energy and environmental issues. As a bridge connecting the internal and external circuits and a habitat for microorganisms, the anode is a key component influencing the performance output of MFCs. Recently, tungsten trioxide (WO) and tungsten disulfide (WS) can be used for the MFC setup. In this study, a direct hydrothermal synthesis method was employed to prepare WS/WO nanomaterials. It was subsequently integrated with carbon paper (CP) to develop WS/WO-CP and WO-CP anodes for MFCs. Contact angle tests showed that the hydrophilicity of the WS/WO-CP electrode was significantly improved. In electrochemical tests, the MFCs with WS/WO-CP anode exhibited lower charge transfer resistance and higher electron transfer efficiency than the original ones. The MFC with the WS/WO-CP anode had a maximum power density reaching 2.32 W·m, which was 1.34 and 3.09 times higher than that of the WO-CP and bare CP anodes, respectively. Meanwhile, this MFC with the WS/WO-CP anode showed higher removal rates of chemical oxygen demand and SO than the WO-CP and CP anodes. The modified WS/WO nanomaterials are promising materials that can be adopted for MFCs industrial use.

摘要

微生物燃料电池（MFCs）已成为一种解决严峻能源和环境问题的新能源技术。作为连接内部和外部电路的桥梁以及微生物的栖息地，阳极是影响MFCs性能输出的关键组件。最近，三氧化钨（WO）和二硫化钨（WS）可用于MFC装置。在本研究中，采用直接水热合成法制备WS/WO纳米材料。随后将其与碳纸（CP）集成，开发用于MFCs的WS/WO-CP和WO-CP阳极。接触角测试表明，WS/WO-CP电极的亲水性显著提高。在电化学测试中，具有WS/WO-CP阳极的MFCs比原始MFCs表现出更低的电荷转移电阻和更高的电子转移效率。具有WS/WO-CP阳极的MFC的最大功率密度达到2.32 W·m，分别比WO-CP阳极和裸CP阳极高1.34倍和3.09倍。同时，这种具有WS/WO-CP阳极的MFC对化学需氧量和SO的去除率高于WO-CP阳极和CP阳极。改性后的WS/WO纳米材料是有望用于MFCs工业应用的材料。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/399de476b673/fmicb-16-1589441-g011.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/3f4ba812ea47/fmicb-16-1589441-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/302139fffe6c/fmicb-16-1589441-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/639e49d7bda5/fmicb-16-1589441-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/9f75bad6f1d1/fmicb-16-1589441-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/c5836ff624f0/fmicb-16-1589441-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/391eb56beea6/fmicb-16-1589441-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/0db96e9db91b/fmicb-16-1589441-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/399de476b673/fmicb-16-1589441-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/45d3312c7980/fmicb-16-1589441-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/f721797ec3f6/fmicb-16-1589441-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/0bb9d7f105db/fmicb-16-1589441-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/3f4ba812ea47/fmicb-16-1589441-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/302139fffe6c/fmicb-16-1589441-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/639e49d7bda5/fmicb-16-1589441-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/9f75bad6f1d1/fmicb-16-1589441-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/c5836ff624f0/fmicb-16-1589441-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/391eb56beea6/fmicb-16-1589441-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/0db96e9db91b/fmicb-16-1589441-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cd1/12066612/399de476b673/fmicb-16-1589441-g011.jpg

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