Overview

• The NIMS team reported the findings on September 28 in ACS Catalysis, crediting the Layered Nanochemistry Group at MANA in Tsukuba led by Dr. Yusuke Ide with colleagues Ezz-Elregal and Mitsutake Oshikiri.
• Researchers treated green rust with a copper chloride solution that formed nanoscale copper oxide clusters at particle edges, creating highly active sites for hydrogen production.
• The catalyst harvests sunlight through the green rust structure and transfers energy via the copper clusters, enhancing hydrolysis efficiency and hydrogen generation rates.
• Performance testing showed high turnover frequency and strong durability comparable to or exceeding precious-metal catalysts, with operation demonstrated at ambient temperatures.
• Dr. Ide said the technology is expected to enable onboard fuel-cell applications in cars and ships, and coverage noted related ship pilots and efforts to lower sodium borohydride costs.