Chinese Scientists Achieve Room Temperature Hydrogen Generation Through Breakthrough Electrochemical Liquid Ammonia Splitting Process

Chinese researchers develop a ruthenium-based catalyst for electrochemical liquid ammonia splitting, enabling efficient onsite hydrogen generation at room temperature.

By: AXL Media

Published: Mar 31, 2026, 3:13 AM EDT

Source: Information for this report was sourced from Chinese Journal of Catalysis

Overcoming Thermal Barriers in the Hydrogen Economy

The transition toward a sustainable hydrogen economy has long been obstructed by the logistical difficulties of transporting and storing pure hydrogen gas. Ammonia has emerged as a frontrunner for energy carriage due to its high hydrogen density and ease of liquefaction, yet traditional extraction methods require energy-intensive temperatures ranging between 400 and 700 degrees Celsius. A recent breakthrough by researchers at Jilin University and the Chinese Academy of Sciences has introduced an electrochemical liquid ammonia decomposition (ELADH) method that functions at room temperature, fundamentally lowering the energy threshold for hydrogen release.

Identifying Ruthenium as the Optimal Catalytic Surface

The research team employed density functional theory calculations to evaluate the efficiency of various precious metals, including platinum, rhodium, and iridium. Their findings identified ruthenium as the superior candidate for this specific electrochemical environment, particularly when focusing on the Ru (101) facet. This specific atomic arrangement exhibited a significantly lower energy barrier for the cleavage of N–H bonds while maintaining optimal hydrogen adsorption characteristics. These theoretical insights provided the blueprint for engineering a catalyst capable of outperforming standard commercial alternatives.

The Synthesis of Nitrogen-Doped Carbon Supports

To bring their theoretical findings to life, the scientists utilized a two-step pyrolysis method to synthesize ruthenium nanoparticles supported on nitrogen-doped carbon (Ru NPs-CN). This porous structure was designed to maximize the exposure of the active (101) facets, ensuring a high surface area for the electrochemical reaction. The resulting material provides a robust framework that can withstand the corrosive environments typical of liquid ammonia processing, a challenge that has historically hampered the development of stable catalysts in this field.