{"title":"用钒酸银混合功能化多壁碳纳米管作为阴极改善微生物燃料电池的氧还原反应","authors":"Zahra Khaksar, Maryam Farahmand Habibi, Majid Arvand, Romina Rezapour","doi":"10.1016/j.fuel.2024.132367","DOIUrl":null,"url":null,"abstract":"<div><p>The power generation capacity of the microbial fuel cell (MFC) depends largely on the properties of the cathode material. The key to achieving remarkable performance of MFC is to have good oxygen reduction reaction (ORR) activity. In this research, a novel, facile, and low-cost method involving surfactant-less stirring and ultrasound steps was used to prepare the catalyst. The silver vanadate blended functionalized multiwall carbon nanotubes (AgVO<sub>3</sub>@f-MWCNTs) illustrated a high ORR activity with a maximum power density of 106.8 mW m<sup>−2</sup>, which was about 3.73, and 2.84 times higher than that of AgVO<sub>3</sub> (28.62 mW m<sup>−2</sup>) and f-MWCNTs (37.55 mW m<sup>−2</sup>), respectively. The f-MWCNTs provide a large specific surface area that can increase the loading and dispersion of active sites, together with the synergistic catalysis of AgVO<sub>3</sub> active sites, greatly improving the ORR performance of the MFC. Furthermore, the AgVO<sub>3</sub>@f-MWCNTs cathode catalyst demonstrated that the composite materials had great potential for new green energy strategies.</p></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":null,"pages":null},"PeriodicalIF":6.7000,"publicationDate":"2024-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Improving oxygen reduction reaction of microbial fuel cell by silver vanadate blended functionalized multiwall carbon nanotubes as cathode\",\"authors\":\"Zahra Khaksar, Maryam Farahmand Habibi, Majid Arvand, Romina Rezapour\",\"doi\":\"10.1016/j.fuel.2024.132367\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The power generation capacity of the microbial fuel cell (MFC) depends largely on the properties of the cathode material. The key to achieving remarkable performance of MFC is to have good oxygen reduction reaction (ORR) activity. In this research, a novel, facile, and low-cost method involving surfactant-less stirring and ultrasound steps was used to prepare the catalyst. The silver vanadate blended functionalized multiwall carbon nanotubes (AgVO<sub>3</sub>@f-MWCNTs) illustrated a high ORR activity with a maximum power density of 106.8 mW m<sup>−2</sup>, which was about 3.73, and 2.84 times higher than that of AgVO<sub>3</sub> (28.62 mW m<sup>−2</sup>) and f-MWCNTs (37.55 mW m<sup>−2</sup>), respectively. The f-MWCNTs provide a large specific surface area that can increase the loading and dispersion of active sites, together with the synergistic catalysis of AgVO<sub>3</sub> active sites, greatly improving the ORR performance of the MFC. Furthermore, the AgVO<sub>3</sub>@f-MWCNTs cathode catalyst demonstrated that the composite materials had great potential for new green energy strategies.</p></div>\",\"PeriodicalId\":325,\"journal\":{\"name\":\"Fuel\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":6.7000,\"publicationDate\":\"2024-06-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Fuel\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0016236124015151\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fuel","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0016236124015151","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
Improving oxygen reduction reaction of microbial fuel cell by silver vanadate blended functionalized multiwall carbon nanotubes as cathode
The power generation capacity of the microbial fuel cell (MFC) depends largely on the properties of the cathode material. The key to achieving remarkable performance of MFC is to have good oxygen reduction reaction (ORR) activity. In this research, a novel, facile, and low-cost method involving surfactant-less stirring and ultrasound steps was used to prepare the catalyst. The silver vanadate blended functionalized multiwall carbon nanotubes (AgVO3@f-MWCNTs) illustrated a high ORR activity with a maximum power density of 106.8 mW m−2, which was about 3.73, and 2.84 times higher than that of AgVO3 (28.62 mW m−2) and f-MWCNTs (37.55 mW m−2), respectively. The f-MWCNTs provide a large specific surface area that can increase the loading and dispersion of active sites, together with the synergistic catalysis of AgVO3 active sites, greatly improving the ORR performance of the MFC. Furthermore, the AgVO3@f-MWCNTs cathode catalyst demonstrated that the composite materials had great potential for new green energy strategies.
期刊介绍:
The exploration of energy sources remains a critical matter of study. For the past nine decades, fuel has consistently held the forefront in primary research efforts within the field of energy science. This area of investigation encompasses a wide range of subjects, with a particular emphasis on emerging concerns like environmental factors and pollution.