Efficient bifunctional catalysts for overall water splitting: porous Fe-Mo oxide hybrid nanorods.

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ID: 101099
2020
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Abstract
Efficient and inexpensive bifunctional catalysts for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) are essential for water splitting. Herein, we successfully prepare porous Fe-Mo oxide hybrid nanorods through a hydrothermal method followed by annealing at high temperature. They exhibit excellent catalytic activity for OER and HER in alkaline media, and produce a current density of 10 mA cm-2 at overpotentials of 200 and 66 mV. Besides, they work as bifunctional electrode materials for overall water splitting, achieving a current density of 10 mA cm-2 at a voltage of 1.52 V, and maintaining a current density of 60 mA cm-2 for 60 h. The unique morphology with self-supported structure can expose more active sites and facilitate charge transfer, and is not easy to peel off, thus it improves the catalytic activity and stability. This work therefore provides a valuable route for designing and fabricating inexpensive and high-performance catalytic materials for overall water splitting.
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chen2020efficientnanoscale Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Wei Chen, Guangfu Qian, Qinglian Xu, Chen Yu, Mengya Yu, Yijiang Xia, Shibin Yin
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Journal Nanoscale
Year 2020
DOI
10.1039/d0nr00446d
URL
Keywords
microfluidics nanofluidics surface modifications hele-shaw cells multiphase flows packed beds subsurface formations visual models

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