二硫化钼纳米片用于修饰微生物燃料电池阳极的研究

利用简单的一步水热法制备了MoS2纳米片并用于修饰不锈钢纤维毡阳极(MoS2-SSFF),与未修饰不锈钢纤维毡阳极(SSFF)和多壁碳纳米管修饰阳极(CNT-SSFF)进行了对比研究。装配MFC运行的测试结果表明,MoS2-SSFF/MFC的功率密度为714 m W/m2,略高于CNT-SSFF/MFC的功率密度693 m W/m2,远高于未修饰SSFF/MFC的功率密度197 m W/m2。利用扫描电子显微镜(SEM)观察到MoS2纳米片呈簇状附着于MoS2-SSFF电极表面,显著增加了电极的比表面积。MoS2纳米片修饰改善了SSFF阳极的生物相容性,修饰电极在循环伏安测试(CV)中表现出良好的氧化还原性能。水热法制备的MoS2纳米片用于修饰阳极是一种高效、经济、简单的阳极修饰方法。

Study on Molybdenum Disulfide Nanosheeets Modified Anode of Microbial Fuel Cell

Molybdenum disulfide(MoS2) prepared by a simple one-step hydrothermal method was used to modify stainless steel fiber felt(SSFF) to form Mo S2-SSFF,and its modification performance was compared with multi-wall modified SSFF(CNT-SSFF) and unmodified SSFF.The test results of MFC operation showed that,the power density of MoS2-SSFF/MFC was 714 mW/m2,which was slightly higher than that of CNT-SSFF/MFC(693 mW/m2),and much higher than that of unmodified SSFF/MFC(197 mW/m2).It was clearly observed that Mo S2 nanosheets piled up and formed clusters on the surface of the Mo S2-SSFF by scanning electron microscope(SEM),thus the specific area of Mo S2-SSFF increased.The biocompatibility of SSFF was also improved by the modification of MoS2 nanosheets,and MoS2-SSFF exhibited excellent redox performance in cyclic voltammetry(CV) test.Anode modification with Mo S2 nanosheets produced by the hydrothermal method presents high performance,low-cost,and also a simple method.