DUGiDocsAssessment of biotic and abiotic graphite cathodes for hydrogen production in microbial electrolysis cells
Text Complet
Assessment-of-biotic.pdf
Sol·licita còpia a l'autor de l'article
En omplir aquest formulari esteu demanant una còpia de l'article dipositat al repositori institucional (DUGiDocs) al seu autor o a l'autor principal de l'article. Serà el mateix autor qui decideixi lliurar una còpia del document a qui ho sol•liciti si ho creu convenient. En tot cas, la Biblioteca de la UdG no intervé en aquest procés ja que no està autoritzada a facilitar articles quan aquests són d'accés restringit.
Compartir
Hydrogen represents a promising clean fuel for future applications. The biocathode of a two-chambered microbial electrolysis cell (biotic MEC) was studied and compared with an abiotic cathode (abiotic MEC) in order to assess the influence of naturally selected microorganisms for hydrogen production in a wide range of cathode potentials (from -400 to -1800 mV vs SHE). Hydrogen production in both MECs increased when cathode potential was decreased. Microorganisms present in the biotic MEC were identified as Hoeflea sp. and Aquiflexum sp. Supplied energy was utilized more efficiently in the biotic MEC than in the abiotic, obtaining higher hydrogen production respect to energy consumption. At -1000 mV biotic MEC produced 0.89 ± 0.10 m3 H2 d-1 m-3NCC (Net Cathodic Compartment) at a minimum operational cost of 3.2 USD kg-1 H2. This cost is lower than the estimated market value for hydrogen (6 USD kg-1 H 2)
Tots els drets reservats