Fuel Cell Produces Electricity Directly from Biomass
The hybrid fuel cell can use a wide variety of biomass sources, including starch, cellulose, lignin – and even switchgrass, powdered wood and algae.
The new solar-induced direct biomass-to-electricity hybrid fuel cell was described in the journal Nature Communications.
The challenge for biomass fuel cells is that the carbon-carbon bonds of the biomass – a natural polymer – cannot be easily broken down by conventional catalysts, including expensive precious metals. To overcome that challenge, scientists have developed microbial fuel cells in which microbes or enzymes break down the biomass. But that process has many drawbacks, including power output from such cells is limited and microbes or enzymes can only selectively break down certain types of biomass.
Researchers bypassed those issues by altering the chemistry to allow an outside energy source to activate the fuel cell’s oxidation-reduction reaction.
They say the system provides major advantages, including combining the photochemical and solar-thermal biomass degradation in a single chemical process, leading to high solar conversion and effective biomass degradation.
The system can use soluble biomass, or organic materials suspended in a liquid. In experiments, the fuel cell operated for as long as 20 hours, indicating that the POM catalyst can be re-used without further treatment.
- Sustainability Reporting for Commercial Real Estate: GRESB
- Top 3 Reasons to Calculate Your Environmental Footprint
- Smart Companies Utilize Integrated Energy Solutions
- Six Essential Steps to Drive Effective Energy Management
- How to Use Lean Tools to Cash In On Environmental and Energy Savings
- NAEM Trends Report: Planning for a Sustainable Future
- Trends in Energy Management: Where Should Your Next Investment Be?
- Essential Guide to Lighting Retrofits and Upgrades
- The Guru’s Guide: Implementing Environmental ERP Systems
- The Business Case for Corporate Sustainability Tools
- Energy Efficiency Requires Engineering Efficiency
- Integrated Building Optimization: A Crucial Convergence of Demand-side and Supply-Side Energy Management Strategies
- Driving Productivity and Profit with Industrial Energy Management
- Energy Procurement in 2014: Products & Programs to Optimize Savings
- BUYING STRATEGIES IN A VOLATILE MARKET: What Businesses Need to Know about Retail Electricity Procurement