• 3 minutes Australian power prices go insane
  • 7 minutes Wind droughts
  • 11 minutes  What Russia has reached over three months diplomatic and military pressure on West ?
  • 14 mins Is Europe heading for winter of discontent with extensive gas shortages?
  • 5 hours GREEN NEW DEAL = BLIZZARD OF LIES
  • 2 days The United Nations' AGENDA 2030 - The vision for One World Governance ...an article by the famous Dr Robert Malone
  • 2 days 87,000 new IRS agents, higher taxes, and a massive green energy slush fund... "Here Are The Winners And Losers In The 'Inflation Reduction Act'"-ZeroHedge
  • 2 days "Mexico Plans to Become an Export Hub With US-Drilled Natural Gas" - Bloomberg - (See image)
  • 4 days Hopes Are Dashed For International Oil Companies In North Iraq
  • 22 hours "How to Calculate Your Individual ESG Score to ensure that your Digital ID 'benefits' and money are accessible"
  • 3 days The Federal Reserve and Money...Aspects which are not widely known
Biden May Cut 2022 Biofuel Blending Mandates: Report

Biden May Cut 2022 Biofuel Blending Mandates: Report

President Joe Biden is considering…

Ammonia: A Jet Fuel For The Future

Ammonia: A Jet Fuel For The Future

The race to decarbonize the…

Global Food Prices Soaring As Demand For Biofuels Continues To Climb

Global Food Prices Soaring As Demand For Biofuels Continues To Climb

Accelerating demand for renewable biodiesel…

Brian Westenhaus

Brian Westenhaus

Brian is the editor of the popular energy technology site New Energy and Fuel. The site’s mission is to inform, stimulate, amuse and abuse the…

More Info

Premium Content

A Biofuel Cell that Uses Fungus to Generate Cheap Electricty

In a new concept for biofuel cells Sabine Sané, doctoral candidate in the research training group Micro Energy Harvesting at the Department of Microsystems Engineering (IMTEK) of the University of Freiburg, has found a way to make a species of tree fungus useful for the production of electricity.

The idea is so innovative and unique that the new energy conversion concept was chosen as the cover story of ChemSusChem, a journal for chemistry, sustainability, energy, and materials.  Strange for certain but its fact based truth.

ChemSusChem Cover with Fungus for Biofuel Cells
ChemSusChem Cover with Fungus for Biofuel Cells the Lead Article.

The background is biofuel cells produce electricity that is environmentally friendly and conserves resources, for instance from organic waste material.  A biofuel cell would use enzymes as catalysts to enable electrochemical reactions that generate electricity.  In contrast to precious metal catalysts in conventional hydrogen product fuel cells, these enzymes can be obtained at low cost from renewable raw materials. For many technical applications, however, their lifetime is too short.

Related article: Biofuel Breakthrough? Marine Organism can Provide Food and Fuel

The new concept developed by the Freiburg scientists solves this problem by ensuring that the fuel cell is continually resupplied with the biocatalyst. The supplier of the new biofuel cell is Trametes versicolor, a tree fungus that is also found in temperate climates.

The fungus releases the fungal enzyme laccase into a solution surrounding the cathode the positive pole of the biofuel cell where it enables the electrochemical conversion of oxygen. Experiments conducted by the researchers demonstrate that this method can be used to extend the lifetime of the cathodes to as much as a remarkable 120 days, and considerably longer lifetimes now seem possible.

In a contrasting comparison, the cathodes only have a lifetime of 14 days if they are not supplied with more of the enzymes. Since the enzymatic solution can be supplied directly to the fuel cell without time-consuming and expensive purification, the costs are reduced to a minimum. Potential applications for the concept include microbial fuel cells that generate electricity from wastewater, a technology Kerzenmacher’s research group is also developing.

Enzymatic biofuel cells offer great potential for the direct conversion of biochemically-stored energy from renewable biomass resources into electricity.  But the enzyme purification is time-consuming and expensive.  Additionally, the enzyme’s degrading hinders the long-term use of enzymatic biofuel cells, which limits their lifetime to only a few weeks.

Related article: Oil Industry Works Hard to End the E15 Fuel Blend

The Freiburg scientists’ results demonstrate the possibility to establish simple, cost efficient, and mediatorless enzymatic biofuel cell cathodes that do not require expensive enzyme purification procedures.

An enzyme process biofuel cell with an extended lifetime with self-replicating microorganisms providing the electrode with catalytically active enzymes in a continuous or periodic manner now looks like a feasible commercial idea.

Sané’s research was supported by scientists from a research group led by Dr. Sven Kerzenmacher at Prof. Dr. Roland Zengerle’s Laboratory for MEMS Applications.

By. Brian Westenhaus

Source: Strange and True – Fungus can Power Electricity


Download The Free Oilprice App Today

Back to homepage





Leave a comment

Leave a comment




EXXON Mobil -0.35
Open57.81 Trading Vol.6.96M Previous Vol.241.7B
BUY 57.15
Sell 57.00
Oilprice - The No. 1 Source for Oil & Energy News