TY  - JOUR
AU  - Zhang, Hao
AU  - Li, Haoyi
AU  - Akram, Bilal
AU  - Wang, Xun
PY  - 2019
TI  - Fabrication of NiFe layered double hydroxide with well-defined laminar superstructure as highly efficient oxygen evolution electrocatalysts
JO  - Nano Research
SN  - 1998-0124
SP  - 1327
EP  - 1331
VL  - 12
IS  - 6
AB  - Structure–activity relationship (SAR) is the key problem of nanoscience, thus to fabricate novel and well-defined nanostructure will provide a new insight on catalyst preparation method. Highly active and low cost electrocatalysts for oxygen evolution reaction (OER) are of great importance for future renewable energy conversion and storage. Herein, NiFe-based layered double hydroxides with laminar structure (NFLS) were successfully fabricated via a one-step hydrothermal approach by using sodium dodecyl sulfate as surfactant. The as-fabricated NFLS showed a well-defined periodic layered-stacking geometry with a scale down to 1-nm. Benefitting from the unique structure, NFLS exhibited an excellent catalytic activity towards OER with current densities of 10 mA·cm−2 at overpotential of 197 mV. The synergistic effect of Ni and Fe plays a key role in electrode reactions. The present work provides a new insight to improve the OER performance by rational design of electrocatalysts with unique structures.
UR  - https://doi.org/10.1007/s12274-019-2284-0
DO  - 10.1007/s12274-019-2284-0