Researchers at the University of Illinois Chicago (UIC) have pioneered a revolutionary method to produce hydrogen gas from water using solar power and agricultural waste, such as manure and husks. This innovative approach, spearheaded by UIC engineer Meenesh Singh, could significantly advance sustainable and climate-friendly chemical production.

Hydrogen fuels offer a clean energy solution, but conventional production methods are energy-intensive, relying on coal or natural gas. Published in Cell Reports Physical Science, the study introduces a green hydrogen production process that drastically reduces the required energy by 600%.

The method utilizes biocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More, a carbon-rich material derived from biomassBiomass is a complex biological organic or non-organic solid product derived from living or recently living organism and available naturally. Various types of wastes such as animal manure, waste paper, sludge and many industrial wastes are also treated as biomass because like natural biomass these More, to lower the electrical energy needed for water electrolysis. By integrating renewable energy sources like solar or wind power and repurposing byproducts, the process aims to achieve net-zero greenhouse gas emissions.

“We are the first to demonstrate hydrogen production from biomass at a fraction of a volt,” said Singh, highlighting the technology’s transformative potential.

Traditional electrolysis requires significant electricity, often generated from fossil fuels. By introducing biochar made from agricultural waste and animal manure, the UIC team has significantly reduced the power requirement. In their experiments, biochar from cow dung proved most effective, cutting the energy need to just one-fifth of a volt.

The process is efficient enough to be powered by a single silicon solar cell, producing hydrogen with 35% conversion efficiency—a world record. The reaction’s byproduct, carbon dioxide, can be captured for industrial use, offering further environmental and economic benefits.

This breakthrough not only presents a cost-effective way to produce hydrogen but also provides farmers with a potential new revenue stream, fostering self-sustainability. Orochem Technologies Inc., the research sponsor, is seeking patents for this technology, and large-scale testing is planned.

This pioneering work, involving collaboration with institutions like Stanford and Texas Tech, marks a significant step toward a greener future.

READ MORE: New method makes hydrogen from solar power and agricultural waste