摘要：Iron-chromium flow batteries (ICRFBs) have emerged as an ideal large-scale energy storage device with broad application prospects in recent years. Enhancement of the Cr3+/Cr2+ redox reaction activity and inhibition of the hydrogen evolution side reaction (HER) are essential for the development of ICRFBs and require a novel catalyst design. However, elucidating the underlying mechanisms for modulating catalyst behaviors remains an unresolved challenge. Here, we show a novel precisely controlled preparation of a novel thermal-treated carbon cloth electrode with a uniform deposit of low-cost indium catalyst particles. The density functional theory analysis reveals the In catalyst has a significant adsorption effect on the reactants and improves the redox reaction activity of Cr3+/Cr2+. Moreover, H+ is more easily absorbed on the surface of the catalyst with a high migration energy barrier, thereby inhibiting the occurrence of HER. The assembled ICRFBs have an average energy efficiency of 83.91% at 140 mA cm?2, and this method minimizes the electrodeposition process and cleans the last obstacle for industry long cycle operation requirements. The ICRFBs exhibit exceptional long-term stability with an energy efficiency decay rate of 0.011% per cycle at 1000 cycles, the lowest ICRFBs reported so far. Therefore, this study provides a promising strategy for developing ICRFBs with low costs and long cycle life. ? 2024 Institute of Process Engineering, Chinese Academy of Sciences

ISSN号：2096-2797

卷、期、页：卷10期2：410-421

发表日期：2025-02-01

期刊分区（SCI为中科院分区）：一区

收录情况：SCI（科学引文索引印刷版）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：Green Energy and Environment

参与作者：彭勃

通讯作者：刘银萍,郭超,武光富,吕文杰,Heydari Ali

第一作者：牛迎春,周天航,徐春明,徐泉

论文类型：期刊论文

论文概要：牛迎春,刘银萍,周天航,郭超,武光富,吕文杰,Heydari Ali,彭勃,徐春明,徐泉，Insights into novel indium catalyst to kW scale low cost, high cycle stability of iron-chromium redox flow battery，Green Energy and Environment，2025，卷10期2：410-421

论文题目：Insights into novel indium catalyst to kW scale low cost, high cycle stability of iron-chromium redox flow battery