New study identifies the impurity behind green hydrogen's power-cycling problem

Executive Briefing & Key Highlights

Researchers led by University of Oregon chemist Paul Kempler have identified dissolved iron impurities as the key factor controlling the degradation of alkaline water electrolyzers during power interruptions—a finding that could point toward a fix for one of green hydrogen's persistent engineering challenges. The paper will be published Sept. 9 in Chem Catalysis.