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Updated: May 9, 2026

Probing and Mapping Electrode Surfaces in Solid Oxide Fuel Cells
Published on: September 20, 2012
Construction of efficient and stable Ni(Fe)OOH oxygen evolution reaction electrodes via topological transformation
Zhichao Wang1, Tiandong Qiu2, Lianxin Gong2
1College of Food and Biological Engineering, College of Chemistry and Chemical Engineering, Chengdu University, Chengdu 610106, China. dengjie@cdu.edu.cn.
Abstract:
Water splitting represents a crucial pathway for large-scale green hydrogen production. However, the sluggish kinetics of the anodic oxygen evolution reaction (OER) remain a major challenge. Here, we develop a low-temperature liquid-phase strategy to synthesize sulfur-doped Ni-Fe compound precursors (NFF-NS), which underwent profound compositional and structural self-reconstruction by electrochemical activation. The resulting R-NFF-NS catalyst exhibited superb OER activity and stability, requiring an overpotential of only 203.5 mV at 10 mA cm-2 while stably working up to 1950 h even at 480 mA cm-2.

