Enhanced electron transfer in microbial fuel cells using calcined eggshell anode with optimized performance

被引：0

作者：

Christwardana, Marcelinus ^{[1
,2
,3
]}

Prayoga, Bryant Andhika ^{[1
]}

Kuntolaksono, Satrio ^{[4
]}

Joelianingsih, J. ^{[4
]}

Maulana, Achmad Yanuar ^{[5
,6
]}

机构：

[1] Diponegoro Univ, Dept Chem, Semarang 50275, Indonesia

[2] Diponegoro Univ, Master Program Energy, Semarang 50241, Indonesia

[3] Diponegoro Univ, Res Collaborat Ctr Electrochem, BRIN, Semarang 50275, Indonesia

[4] Inst Teknol Indonesia, Dept Chem Engn, South Tangerang 15314, Indonesia

[5] Dong A Univ, Dept Chem, Busan 49315, South Korea

[6] Dong A Univ, Dept Chem Engn, FOUR Grad Program BK21, Busan 49315, South Korea

来源：

BIORESOURCE TECHNOLOGY REPORTS | 2025年 / 29卷

关键词：

Renewable energy applications; Sustainable anode materials; Calcined eggshell anode; Physicochemical properties of calcined eggshell; Microbial fuel cells; CARBON FELT; CACO3; ADSORPTION; BIODIESEL; WASTE;

D O I：

10.1016/j.biteb.2025.102088

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

This study investigates the impact of calcination temperature on eggshell-derived anodes for microbial fuel cells (MFCs), addressing the limitations of costly and inefficient electrode materials. Activated with NaOH, eggshells were calcined at 550, 700, and 850 degrees C, with 700 degrees C yielding the highest electron transfer rate constant (ks = 1.64 s_ 1) due to enhanced crystallinity and structural integrity. Electrochemical characterization confirmed the 700 degrees C calcined anode exhibited stable voltage output (185 mV) and maximum power density (70 mW m_ 2), outperforming other configurations. Compared to conventional carbon-based anodes, the optimized calcined eggshell anode provides improved electron transfer, biofilm formation, and cost-effectiveness. This work advances MFC technology by transforming waste into sustainable anodes, addressing prior limitations such as low electron transfer rates and high material costs. These findings highlight the potential of waste-derived materials for scalable, eco-friendly energy solutions.

引用

页数：11

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