Plant-microbial fuel cell for electrical generation through living plants: an internal resistance insight into the plant species used  

作　　者：Raymond Daniel Rodriguez Martinez 

机构地区：[1]Department of Industrial Production,Faculty of Engineering,Universidad Metropolitana,1073 Caracas,Venezuela

出　　处：《Clean Energy》2024年第5期45-53,共9页清洁能源（英文）

摘　　要：Climate change is a global threat,the presence of which has encouraged the development and implementation of renewable energies,including plant–microbial fuel cells,which could generate 6629568–33147840 MWh per year due to their large-scale applicability.One of the main challenges associated with microbial cells is internal resistance—a parameter whose magnitude is influenced by sev-eral factors.In the case of plant–microbial fuel cells,adding a plant positively affects the mitigation of internal resistance.However,the species employed is expected to play an important role.In the present study,the objective was to determine as a general reference the internal resistance of cells using various plant species,among which were tomato(Solanum lycopersicum),black beans(Phaseolus vulgaris),aloe vera(Aloe vera),corn(Zea mays),and moss(Dicranidae).For this purpose,an experimental procedure was carried out to compare the manual voltage measurements with a free cell concerning the voltage obtained by adding an external resistor in series.The internal resistance values were determined as a function of the measured voltage,obtaining 177,179,175,324,and 233 kΩfor aloe vera,corn,tomato,black beans,and moss,respectively.From this,it was shown that the roots of the plants represent an essen-tial addition to the internal resistance of the cell in the short term.In contrast,plants with a C4 photosynthetic metabolism are more favourable,while C3 plants can also benefit from internal resistance during a more extended period of rhizodeposition.

关 键 词：climate change energy MICROORGANISM renewable source voltage 

分 类 号：TM911.45[电气工程—电力电子与电力传动]