Phosphorus modified carbon fiber cloth as a robust and efficient anode for alkaline water electrolysis

X. Zhao; Y. H. Liu; W. Cai; Q. Wang; Z. Zeng; F. X. Hu; T. Hu; B. Liu; H. B. Yang

doi:10.1016/j.mtener.2021.100683

Phosphorus modified carbon fiber cloth as a robust and efficient anode for alkaline water electrolysis

X. Zhao
, Y. H. Liu
, W. Cai
, Q. Wang
, Z. Zeng
, F. X. Hu
, T. Hu
, B. Liu^*
, H. B. Yang^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

4 Citations (Scopus)

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. © 2021 Elsevier Ltd.

Original language	English
Article number	100683
Journal	Materials Today Energy
Volume	20
Online published	18 Feb 2021
DOIs	https://doi.org/10.1016/j.mtener.2021.100683
Publication status	Published - Jun 2021
Externally published	Yes

Funding

We would like to acknowledge the financial support from the National Natural Science Foundation of China (No. 22075195), the Jiangsu Specially-Appointed Professor program, the starting research fund of Suzhou University of Science and Technology to Dr. Hong Bin Yang, the Singapore Ministry of Education Academic Research Fund (AcRF) Tier 1: RG115/18 and RG4/20, Tier 2: MOE2016-T2-2-004, and MOET2EP10120-0009, the Agency for Science, Technology and Research (A∗Star) AME IRG: 192E5001, and the State Grid Cooperation of China (SGRI-DL-71-16-015).

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Research Keywords

Heteroatom doping
Oxygen evolution reaction
Phosphorization
Surface modification

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10.1016/j.mtener.2021.100683

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title = "Phosphorus modified carbon fiber cloth as a robust and efficient anode for alkaline water electrolysis",

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. {\textcopyright} 2021 Elsevier Ltd.",

keywords = "Heteroatom doping, Oxygen evolution reaction, Phosphorization, Surface modification",

author = "X. Zhao and Liu, \{Y. H.\} and W. Cai and Q. Wang and Z. Zeng and Hu, \{F. X.\} and T. Hu and B. Liu and Yang, \{H. B.\}",

year = "2021",

month = jun,

doi = "10.1016/j.mtener.2021.100683",

language = "English",

volume = "20",

journal = "Materials Today Energy",

issn = "2468-6069",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Phosphorus modified carbon fiber cloth as a robust and efficient anode for alkaline water electrolysis

AU - Zhao, X.

AU - Liu, Y. H.

AU - Cai, W.

AU - Wang, Q.

AU - Zeng, Z.

AU - Hu, F. X.

AU - Hu, T.

AU - Liu, B.

AU - Yang, H. B.

PY - 2021/6

Y1 - 2021/6

N2 - 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. © 2021 Elsevier Ltd.

AB - 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. © 2021 Elsevier Ltd.

KW - Heteroatom doping

KW - Oxygen evolution reaction

KW - Phosphorization

KW - Surface modification

UR - https://www.scopus.com/pages/publications/85102552884

UR - https://www.scopus.com/pages/publications/85102552884#tab=impact

U2 - 10.1016/j.mtener.2021.100683

DO - 10.1016/j.mtener.2021.100683

M3 - RGC 21 - Publication in refereed journal

SN - 2468-6069

VL - 20

JO - Materials Today Energy

JF - Materials Today Energy

M1 - 100683

ER -

Phosphorus modified carbon fiber cloth as a robust and efficient anode for alkaline water electrolysis

Abstract

Funding

UN SDGs

Research Keywords

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