Hydrogenated Anatase and Rutile TiO2 for Sodium-Ion Battery Anodes

  • Jagabandhu Patra
    Jagabandhu Patra
    Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
    Hierarchical Green-Energy Materials (Hi-GEM) Research Center, National Cheng Kung University, 1 University Road, Tainan 70101, Taiwan
  • Shu-Chi Wu
    Shu-Chi Wu
    Institute of Materials Science and Engineering, National Central University, 300 Jhong-Da Road, Taoyuan 32001, Taiwan
    Department of Materials Science and Engineering, National Tsing Hua University, 101, Guangfu Road, Hsinchu 300, Taiwan
    More by Shu-Chi Wu
  • Ing-Chi Leu
    Ing-Chi Leu
    Department of Materials Science, National University of Tainan, 33, Section 2, Shulin Street, West Central District, Tainan 70005, Taiwan
    More by Ing-Chi Leu
  • Chun-Chen Yang
    Chun-Chen Yang
    Battery Research Center of Green Energy, Ming Chi University of Technology, 84, Gongzhuan Road, Taishan District, New Taipei City 243, Taiwan
  • Rajendra S. Dhaka
    Rajendra S. Dhaka
    Department of Physics, Indian Institute of Technology Delhi, Huaz Khas, New Delhi 110016, India
  • Shigeto Okada
    Shigeto Okada
    Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 816-8580, Japan
  • Hsiu-Liang Yeh
    Hsiu-Liang Yeh
    Department of Chemical and Materials Engineering, National Central University, 300 Jhong-Da Road, Taoyuan 32001, Taiwan
  • Chieh-Ming Hsieh
    Chieh-Ming Hsieh
    Department of Chemical and Materials Engineering, National Central University, 300 Jhong-Da Road, Taoyuan 32001, Taiwan
  • Bor Kae Chang*
    Bor Kae Chang
    Department of Chemical and Materials Engineering, National Central University, 300 Jhong-Da Road, Taoyuan 32001, Taiwan
    *Email: [email protected]
  • , and 
  • Jeng-Kuei Chang*
    Jeng-Kuei Chang
    Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
    Hierarchical Green-Energy Materials (Hi-GEM) Research Center, National Cheng Kung University, 1 University Road, Tainan 70101, Taiwan
    Institute of Materials Science and Engineering, National Central University, 300 Jhong-Da Road, Taoyuan 32001, Taiwan
    *Email: [email protected]
Cite this: ACS Appl. Energy Mater. 2021, 4, 6, 5738–5746
Publication Date (Web):May 26, 2021
https://doi.org/10.1021/acsaem.1c00571
Copyright © 2021 American Chemical Society
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Abstract

Defective transition metal oxides prepared via a hydrogenation treatment have attracted growing attention for use as electrode materials of batteries and supercapacitors due to their improved electrochemical properties. In this work, two TiO2 phases, namely, rutile (TiO2-R) and anatase (TiO2-A), and their hydrogenated phases (denoted with the prefix “H”) are investigated as anodes for sodium-ion batteries. The charge–discharge properties of both phases can be enhanced via a high-pressure hydrogenation treatment. For example, H-TiO2-A exhibits exceptional high-rate performance (100 mA h g–1 at 10,000 mA g–1 vs 5 mA h g–1 at the same current rate for TiO2-A) and great cycling stability (80% capacity retention after 4500 cycles). The introduction of oxygen vacancies increases the electronic and ionic conductivity of TiO2 and the disordered structure offers more active sites for electrochemical reactions. The H-TiO2-R and H-TiO2-A electrodes are compared for sodium-ion battery applications. The superior performance of the former electrode is supported by the generalized gradient approximation Perdew–Burke–Ernzerhof density functional calculation.

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  • Summary of charge–discharge properties of various TiO2 electrodes reported in the literature; XRD patterns of TiO2-R and TiO2-A samples; and cycling stability of the H-TiO2-A electrode measured at 500 mA g–1 for 4500 cycles (PDF)

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Cited By


This article is cited by 1 publications.

  1. Pravin K. Dwivedi, Simranjot K. Sapra, Jayashree Pati, Rajendra S. Dhaka. Na4Co3(PO4)2P2O7/NC Composite as a Negative Electrode for Sodium-Ion Batteries. ACS Applied Energy Materials 2021, 4 (8) , 8076-8084. https://doi.org/10.1021/acsaem.1c01374