@article{Yu2024, 
author = {Xin Yu and Jing Mei and Yeshuang Du and Xiaohong Cheng and Xing Wang and Qi Wu},
title = {Engineered interface of three-dimensional coralliform NiS/FeS2 heterostructures for robust electrocatalytic water cleavage},
year = {2024},
journal = {Nano Research},
volume = {17},
number = {6},
pages = {4693-4701},
keywords = {water splitting, nanorods, interface engineering, bifunctional, NiS/FeS2},
url = {https://www.sciopen.com/article/10.1007/s12274-023-5740-9},
doi = {10.1007/s12274-023-5740-9},
abstract = {Heterojunction structures improve the intrinsic activity of electrocatalysts by enhancing the charge transfer between the catalyst and the electrode. In this paper, the NiS/FeS2 heterostructured electrocatalyst is fabricated by a simple sulfidation method using an interface engineering strategy to adjust the surface electron density of the electrocatalyst. As expected, NiS/FeS2 electrocatalyst exhibits superior activity and durable oxygen evolution reaction (OER) stability, requiring only a low overpotential of 183 mV to achieve a current density of 10 mA·cm−2 and can be stable for more than 80 h, superior to NiS, FeS2 electrocatalyst individually, and precious RuO2. Notably, NiS/FeS2 is also a good bifunctional electrocatalyst with good overall water splitting performance, and it only requires a voltage 1.56 V to obtain a current density of 10 mA·cm−2 for more than 12 h. Remarkably, the NiS/FeS2 hybridization facilitates the formation of coral-like structures, increasing the electrochemical surface area (ECSA) and enhancing the charge transfer efficiency, thus leading to excellent electrocatalytic performance. This work proposes a constructive strategy for designing efficient electrocatalysts based on interface engineering, and lays a foundation for designing a new class of electrocatalysts.}
}