@article{Luo2017, 
author = {Ma Luo and Zhao Cai and Cheng Wang and Yongmin Bi and Li Qian and Yongchao Hao and Li Li and Yun Kuang and Yaping Li and Xiaodong Lei and Ziyang Huo and Wen Liu and Hailiang Wang and Xiaoming Sun and Xue Duan},
title = {Phosphorus oxoanion-intercalated layered double hydroxides for high-performance oxygen evolution},
year = {2017},
journal = {Nano Research},
volume = {10},
number = {5},
pages = {1732-1739},
keywords = {phosphate, oxygen evolution reaction, layered double hydroxide, phosphite, hypophosphite},
url = {https://www.sciopen.com/article/10.1007/s12274-017-1437-2},
doi = {10.1007/s12274-017-1437-2},
abstract = {Rational design and controlled fabrication of efficient and cost-effective electrodes for the oxygen evolution reaction (OER) are critical for addressing the unprecedented energy crisis. Nickel–iron layered double hydroxides (NiFe-LDHs) with specific interlayer anions (i.e. phosphate, phosphite, and hypophosphite) were fabricated by a co-precipitation method and investigated as oxygen evolution electrocatalysts. Intercalation of the phosphorus oxoanion enhanced the OER activity in an alkaline solution; the optimal performance (i.e., a low onset potential of 215 mV, a small Tafel slope of 37.7 mV/dec, and stable electrochemical behavior) was achieved with the hypophosphite-intercalated NiFe-LDH catalyst, demonstrating dramatic enhancement over the traditional carbonate-intercalated NiFe-LDH in terms of activity and durability. This enhanced performance is attributed to the interaction between the intercalated phosphorous oxoanions and the edge-sharing MO6 (M = Ni, Fe) layers, which modifies the surface electronic structure of the Ni sites. This concept should be inspiring for the design of more effective LDH-based oxygen evolution electrocatalysts.}
}