Earth-abundant first-row (3d) transition-metal-based catalysts have been developed for the oxygen-evolution reaction (OER); however, they operate at overpotentials significantly above thermodynamic requirements. Density functional theory suggested that non-3d high-valency metals such as tungsten can modulate 3d metal oxides, providing near-optimal adsorption energies for OER intermediates. We developed a room-temperature synthesis to produce gelled oxy-hydroxide materials with an atomically homogeneous metal distribution. These gelled FeCoW oxy-hydroxide exhibits the lowest overpotential (191 mV) reported at 10 mA per square centimeter in alkaline electrolyte. The catalyst shows no evidence of degradation following more than 500 hours of operation. X-ray absorption and computational studies reveal a synergistic interplay between W, Fe and Co in producing a favorable local coordination environment and electronic structure that enhance the energetics for OER.

Science 24 Mar 2016
DOI: 10.1126/science.aaf1525

http://science.sciencemag.org/content/early/2016/03/23/science.aaf1525

中文报道（新胶状材料有助存储可再生能源 促进水解技术工业化）链接：
http://mp.weixin.qq.com/s?__biz=MzA5NzIyNjEzNQ==&mid=404761934&idx=3&sn=dd0dc2d5af521e2e83f80c4373c9a89d&scene=0#wechat_redirect