氢
催化作用
化学
原电池
体积流量
电解
材料科学
核工程
机械
电极
冶金
物理
工程类
生物化学
有机化学
电解质
物理化学
作者
Steven Selverston,Robert F. Savinell,Jesse S. Wainright
标识
DOI:10.1016/j.jpowsour.2016.05.126
摘要
An H2Fe3+ recombination method is being developed for all-iron flow batteries. Working principles are described and a proof-of-concept in-tank reactor is demonstrated. A membrane-less galvanic reactor is characterized using potential, polarization and impedance measurements at hydrogen partial pressures ranging from 0.3 to 11.3 psig. Through a vertical reactor geometry, hydrogen recombination rates of up to 60 mA cm−2 were measured at PH2 = 4.5 psig for a reactor with a platinum loading of 3.2 mg cm−2, based on the geometric catalyzed area. This is equivalent to over 375 mA cm−2 with respect to the cross sectional area of the reactor at the waterline. This rate is sufficient that the reactor will readily fit inside the positive reservoir of a flow battery. The reactor was found to be resistant to degradation by flooding or catalyst loss.
科研通智能强力驱动
Strongly Powered by AbleSci AI