Shuo Wang, Xutong Liu, Honglei Chen, Jin Kong, Yingshuang Guo, Weiming Lü, Zhengjia Wang, Zhiguo Liu, Zhe Lü, Zhihong Wang
Commercial nickel foam (NF), which is composed of numerous interconnected ligaments and hundred-micron pores, is widely acknowledged as a current collector/electrode material for catalysis, sensing, and energy storage applications. However, the commonly used NF often does not work satisfactorily due to its smooth surface and hollow structure of the ligaments. Herein, a gas-phase-induced engineering, two-step gaseous oxidation-reduction (GOR) is presented to directly transform the thin-walled hollow ligament of NF into a three-dimensional (3D) nanoporous prism structure, resulting in the fabrication of a unique hierarchical porous nickel foam (HPNF)...
May 10, 2024: ACS Applied Materials & Interfaces