Dalian University Researchers Engineer Wrinkled Carbon Nanospheres for Highly Efficient Green Hydrogen Peroxide Production

Dalian researchers use brain-inspired "wrinkled" carbon spheres to achieve 97.5% selectivity in hydrogen peroxide production, replacing costly metal catalysts.

By: AXL Media

Published: Apr 29, 2026, 6:24 AM EDT

Source: Information for this report was sourced from EurekAlert!

A Biological Approach to Catalyst Surface Design

Researchers at the Dalian University of Technology have developed a novel carbon-based catalyst inspired by the complex folds of the human brain. By mimicking the sulcus gyrus formation mechanism, the team synthesized heterogeneous polymer spheres with a hard shell and soft core. During a high-temperature pyrolysis process, the different compositions of the core and shell caused asynchronous contraction, resulting in a distinct wrinkled topography. According to Professor Guang-Ping Hao, this structural engineering allows for a more efficient distribution of active sites, addressing a common bottleneck in sustainable chemical production where catalysts often suffer from low intrinsic activity.

Overcoming the Limits of Traditional Anthraquinone Production

The industrial production of hydrogen peroxide currently relies on the anthraquinone route, a process that requires large-scale facilities and expensive palladium catalysts. While electrocatalytic oxygen reduction has been proposed as a greener alternative, traditional carbon catalysts have struggled with insufficient utilization of their active surfaces. The new wrinkled carbon spheres, however, provide a 10-fold increase in the electrochemical active surface area compared to standard oxygen-doped carbon spheres. This architectural shift ensures that more active sites are accessible for the chemical reaction, potentially lowering the cost and environmental footprint of this essential oxidizing agent.

Precision Engineering of Nanosphere Topography

The study emphasizes the ability to fine-tune the catalyst's performance by adjusting the duration of the polymerization phase. By controlling how long the molecules are allowed to bond, the researchers can dictate the depth and abundance of the wrinkles on the carbon surface. The optimized version of the catalyst, labeled WCS-72, demonstrated an extraordinary ability to select for hydrogen peroxide over a wide potential range in alkaline electrolytes. According to the research data, this specific configuration maintains its high efficiency from 0 to 0.67 V vs. RHE, making it a robust candidate for consistent industrial application.