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|Title:||Phosphorus modified carbon fiber cloth as a robust and efficient anode for alkaline water electrolysis||Authors:||Zhao, X.
Liu, Y. H.
Hu, F. X.
Yang, H. B.
|Keywords:||Engineering::Chemical engineering||Issue Date:||2021||Source:||Zhao, X., Liu, Y. H., Cai, W., Wang, Q., Zeng, Z., Hu, F. X., Hu, T., Liu, B. & Yang, H. B. (2021). Phosphorus modified carbon fiber cloth as a robust and efficient anode for alkaline water electrolysis. Materials Today Energy, 20, 100683-. https://dx.doi.org/10.1016/j.mtener.2021.100683||Project:||RG115/18
|Journal:||Materials Today Energy||Abstract:||Developing cost-effective electrocatalysts is critical to renewable energy conversion and storage technologies. In this work, commercial carbon fiber cloth (CFC) was thermally treated with PCl3 in a sealed-tube reactor to obtain phosphorus-modified CFC (P-CFC). The P-CFC can deliver an oxygen evolution reaction (OER) current density of 10 mA cm−2 with only 310 mV overpotential for 50 h with negligible activity decay, which is superior to all other reported metal-free OER electrocatalysts. The mechanism of improved OER activity was systematically studied by electron microscopy and photoelectron spectroscopy. It was found that the p-type doping on the CFC surface by P atom could promote the electron transfer from OH− to the electrode; moreover, the formation of oxidized C–P active sites under anodic potential boosted OER activity both thermodynamically and kinetically. This work not only develops a highly active metal-free OER electrocatalyst but also introduces a promising method to enhance the durability of carbon support for oxidative electrochemical reactions.||URI:||https://hdl.handle.net/10356/159810||ISSN:||2468-6069||DOI:||10.1016/j.mtener.2021.100683||Schools:||School of Chemical and Biomedical Engineering||Rights:||© 2021 Elsevier Ltd. All rights reserved.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||SCBE Journal Articles|
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