Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China.
J Hazard Mater. 2013 Nov 15;262:1-8. doi: 10.1016/j.jhazmat.2013.08.004. Epub 2013 Aug 12.
Enhancement of both cobalt leaching from LiCoO2 and acid utilization efficiency (AUE) in microbial fuel cells (MFCs) was successfully achieved by the addition of Cu(II). A dosage of 10mg/L Cu(II) improved both cobalt leaching up to 308% and AUE of 171% compared to the controls with no presence of Cu(II). The apparent activation energy of cobalt leaching catalyzed by Cu(II) in MFCs was only 11.8 kJ/mol. These results demonstrate cobalt leaching in MFCs using Cu(II) as a catalyst may be an effective strategy for cobalt recovery and recycle of spent Li-ion batteries, and the evidence of influence factors including solid/liquid ratio, temperature, and pH and solution conductivity can contribute to improving understanding of and optimizing cobalt leaching catalyzed by Cu(II) in MFCs.
通过添加 Cu(II)，成功地提高了微生物燃料电池 (MFC) 中钴的浸出率和酸利用率效率 (AUE)。与没有添加 Cu(II)的对照相比，添加 10mg/L 的 Cu(II)可使钴的浸出率提高 308%，AUE 提高 171%。Cu(II)在 MFC 中催化钴浸出的表观活化能仅为 11.8 kJ/mol。这些结果表明，在 MFC 中使用 Cu(II)作为催化剂浸出钴可能是一种从废旧锂离子电池中回收和再利用钴的有效策略，并且对包括固液比、温度、pH 值和溶液电导率在内的影响因素的证据可以有助于提高对 Cu(II)在 MFC 中催化钴浸出的理解和优化。
