Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 411368
Title Acetate enhances startup of a H2-producing microbial biocathode
Author(s) Jeremiasse, A.W.; Hamelers, H.V.M.; Croese, E.; Buisman, C.J.N.
Source Biotechnology and Bioengineering 109 (2012)3. - ISSN 0006-3592 - p. 657 - 664.
Department(s) Physical Chemistry and Colloid Science
Sub-department of Environmental Technology
Publication type Refereed Article in a scientific journal
Publication year 2012
Keyword(s) fuel-cells - geobacter-sulfurreducens - electrolysis cells - performance - methane
Abstract H2 can be produced from organic matter with a microbial electrolysis cell (MEC). To decrease MEC capital costs, a cathode is needed that is made of low-cost material and produces H2 at high rate. A microbial biocathode is a low-cost candidate, but suffers from a long startup and a low H2 production rate. In this study, the effects of cathode potential and carbon source on microbial biocathode startup were investigated. Application of a more negative cathode potential did not decrease the startup time of the biocathode. If acetate instead of bicarbonate was used as carbon source, the biocathode started up more than two times faster. The faster startup was likely caused by a higher biomass yield for acetate than for bicarbonate, which was supported by thermodynamic calculations. To increase the H2 production rate, a flow through biocathode fed with acetate was investigated. This biocathode produced 2.2¿m3¿H2¿m-3¿reactor day-1 at a cathode potential of -0.7¿V versus NHE, which was seven times that of a parallel flow biocathode of a previous study
There are no comments yet. You can post the first one!
Post a comment
Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.